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IRewarder\",\"name\":\"rewarder\",\"type\":\"address\"}],\"name\":\"RewarderUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"contract ISlasher\",\"name\":\"slasher\",\"type\":\"address\"}],\"name\":\"SlasherUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Stake\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"period\",\"type\":\"uint256\"}],\"name\":\"StakeFrozenPeriodUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"contract 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Types.Grade\",\"name\":\"toGrade\",\"type\":\"uint8\"}],\"name\":\"Upgrade\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"coef\",\"type\":\"uint256\"}],\"name\":\"VoteRewardCoefUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"VoterAllocated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Withdrawn\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"ACC_PRECISION\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAXCOEF\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"candidateInfo\",\"outputs\":[{\"components\":[{\"internalType\":\"enum Types.Grade\",\"name\":\"grade\",\"type\":\"uint8\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"int256\",\"name\":\"rewardDebt\",\"type\":\"int256\"},{\"internalType\":\"uint256\",\"name\":\"allocation\",\"type\":\"uint256\"},{\"internalType\":\"string\",\"name\":\"manifest\",\"type\":\"string\"}],\"internalType\":\"struct Types.CandidateInfo\",\"name\":\"\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"}],\"name\":\"claim\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"claimFrozenPeriod\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"downgrade\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"draftSlash\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"pendingSlash\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"election\",\"outputs\":[{\"internalType\":\"contract IElection\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"slash\",\"type\":\"uint256\"},{\"internalType\":\"address[]\",\"name\":\"beneficiaries\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"amounts\",\"type\":\"uint256[]\"},{\"internalType\":\"uint256\",\"name\":\"burned\",\"type\":\"uint256\"}],\"name\":\"executeSlash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"gradeOf\",\"outputs\":[{\"internalType\":\"enum Types.Grade\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"contract IRewarder\",\"name\":\"rewarder\",\"type\":\"address\"},{\"internalType\":\"contract IElection\",\"name\":\"_election\",\"type\":\"address\"},{\"internalType\":\"contract IMajorCandidates\",\"name\":\"_majorCandidates\",\"type\":\"address\"},{\"internalType\":\"contract ISlasher\",\"name\":\"_slasher\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_stakeFrozenPeriod\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minStake\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"rewardPerSecond\",\"type\":\"uint256\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"isCandidateRegistered\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"isClaimUnfrozen\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"isStakeUnfrozen\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"lastClaimTimestamp\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"lastStakeTimestamp\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"majorCandidateManifests\",\"outputs\":[{\"internalType\":\"string[]\",\"name\":\"manifests\",\"type\":\"string[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"majorCandidates\",\"outputs\":[{\"internalType\":\"contract IMajorCandidates\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"name\":\"manifestMap\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"minStake\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"}],\"name\":\"pendingCandidateAllocation\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"pendingAllocation\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"}],\"name\":\"pendingReward\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"pending\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"}],\"name\":\"pendingVoterAllocation\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"pendingAllocation\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"enum Types.Grade\",\"name\":\"grade\",\"type\":\"uint8\"}],\"name\":\"poolExists\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"enum Types.Grade\",\"name\":\"grade\",\"type\":\"uint8\"}],\"name\":\"poolInfo\",\"outputs\":[{\"components\":[{\"internalType\":\"uint256\",\"name\":\"accPerShare\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"lastRewardTime\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"allocPoint\",\"type\":\"uint256\"}],\"internalType\":\"struct Types.PoolInfo\",\"name\":\"\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"}],\"name\":\"quit\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"manifest\",\"type\":\"string\"}],\"name\":\"register\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"string\",\"name\":\"manifest\",\"type\":\"string\"}],\"name\":\"registerAndStake\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_candidate\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"pendingSlash\",\"type\":\"uint256\"}],\"name\":\"rejectSlash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"rewardPerSecond\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"rewarder\",\"outputs\":[{\"internalType\":\"contract IRewarder\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"coef\",\"type\":\"uint256\"}],\"name\":\"setVoteRewardCoef\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slasher\",\"outputs\":[{\"internalType\":\"contract ISlasher\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"stake\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"stakeFrozenPeriod\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token\",\"outputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalAllocPoint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"enum Types.Grade\",\"name\":\"grade\",\"type\":\"uint8\"}],\"name\":\"updatePool\",\"outputs\":[{\"components\":[{\"internalType\":\"uint256\",\"name\":\"accPerShare\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"lastRewardTime\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"allocPoint\",\"type\":\"uint256\"}],\"internalType\":\"struct Types.PoolInfo\",\"name\":\"pool\",\"type\":\"tuple\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"upgrade\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"voteRewardCoef\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"candidate\",\"type\":\"address\"}],\"name\":\"voterAllocate\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"Alexandas\",\"details\":\"Stake contract\",\"kind\":\"dev\",\"methods\":{\"candidateInfo(address)\":{\"details\":\"return a candidate\",\"params\":{\"candidate\":\"candidate address\"},\"returns\":{\"_0\":\"candidate information\"}},\"claim(address)\":{\"details\":\"candidate claim reward from the protocol\",\"params\":{\"to\":\"token receiver\"}},\"downgrade(address)\":{\"details\":\"downgrade a candidate\",\"params\":{\"candidate\":\"candidate address\"}},\"draftSlash(address,uint256)\":{\"details\":\"draft a slash for a candidate\",\"params\":{\"_candidate\":\"candidate address\",\"amount\":\"slash amount\"},\"returns\":{\"pendingSlash\":\"real slash amount\"}},\"executeSlash(address,uint256,address[],uint256[],uint256)\":{\"details\":\"executed a slash for a candiate\",\"params\":{\"_candidate\":\"candidate address\",\"amounts\":\"slash reward amounts\",\"beneficiaries\":\"slash reward beneficiaries\",\"burned\":\"burned amount\",\"slash\":\"slash amount\"}},\"gradeOf(address)\":{\"details\":\"return grade of a candidate\",\"params\":{\"candidate\":\"candidate address\"},\"returns\":{\"_0\":\"candidate grade\"}},\"initialize(address,address,address,address,address,uint256,uint256,uint256)\":{\"details\":\"proxy initialize function\",\"params\":{\"_election\":\"`Election` contract \",\"_majorCandidates\":\"`MajorCandidates` contract\",\"_minStake\":\"minimum stake for candidate\",\"_slasher\":\"`Slasher` contract\",\"_stakeFrozenPeriod\":\"stake frozen period\",\"rewardPerSecond\":\"reward generated per second\",\"rewarder\":\"`Rewarder` contract\",\"token\":\"ERC20 token address\"}},\"isCandidateRegistered(address)\":{\"details\":\"return whether a candidate is registered\",\"params\":{\"candidate\":\"candidate address\"},\"returns\":{\"_0\":\"whether the candidate is registered\"}},\"pendingCandidateAllocation(address)\":{\"details\":\"return pending candidate allocation\",\"params\":{\"_candidate\":\"candidate address\"},\"returns\":{\"pendingAllocation\":\"pending candidate allocation\"}},\"pendingReward(address)\":{\"details\":\"return pending reward for a specific candidate\",\"params\":{\"_candidate\":\"candidate address\"},\"returns\":{\"pending\":\"reward for the candidate\"}},\"pendingVoterAllocation(address)\":{\"details\":\"return pending voters allocation for a specific candidate\",\"params\":{\"_candidate\":\"candidate address\"},\"returns\":{\"pendingAllocation\":\"pending voters allocation\"}},\"poolInfo(uint8)\":{\"details\":\"return a specific pool\",\"params\":{\"grade\":\"pool grade\"},\"returns\":{\"_0\":\"pool pool info\"}},\"quit(address)\":{\"details\":\"candidate quit from the protocol\",\"params\":{\"to\":\"token receiver\"}},\"register(string)\":{\"details\":\"register a candidate with node manifest\",\"params\":{\"manifest\":\"node manifest\"}},\"registerAndStake(uint256,string)\":{\"details\":\"register a candidate and stake tokens\",\"params\":{\"amount\":\"token amount\",\"manifest\":\"node manifest\"}},\"rejectSlash(address,uint256)\":{\"details\":\"reject a slash for a candidate\",\"params\":{\"_candidate\":\"candidate address\",\"pendingSlash\":\"real slash amount\"}},\"setVoteRewardCoef(uint256)\":{\"details\":\"set voter slash reward coefficient\",\"params\":{\"coef\":\"voter reward coefficient\"}},\"stake(uint256)\":{\"details\":\"candidate stake tokens\",\"params\":{\"amount\":\"token amount\"}},\"updatePool(uint8)\":{\"details\":\"update a specific pool\",\"params\":{\"grade\":\"pool grade\"},\"returns\":{\"pool\":\"pool info\"}},\"upgrade(address)\":{\"details\":\"upgrade a candidate\",\"params\":{\"candidate\":\"candidate address\"}},\"voteRewardCoef(address)\":{\"details\":\"return voter reward coefficient for a specific candidate\",\"params\":{\"candidate\":\"candidate address\"},\"returns\":{\"_0\":\"coef voter reward coefficient\"}},\"voterAllocate(address)\":{\"details\":\"set allocate the reward to voters from the candidate\",\"params\":{\"candidate\":\"candidate address\"}}},\"stateVariables\":{\"claimFrozenPeriod\":{\"details\":\"return stake frozen period\"},\"election\":{\"details\":\"return `Election` contract\"},\"lastClaimTimestamp\":{\"details\":\"return last claim timestamp for a candidate\"},\"lastStakeTimestamp\":{\"details\":\"return last stake timestamp for a candidate\"},\"majorCandidates\":{\"details\":\"return `MajorCandidates` contract\"},\"minStake\":{\"details\":\"return minimum stake for registering a candidate\"},\"slasher\":{\"details\":\"return `Slasher` contract\"},\"stakeFrozenPeriod\":{\"details\":\"return stake frozen period\"},\"voteRewardCoefs\":{\"details\":\"return vote reward coefficient for a candidate\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/stake/Stake.sol\":\"Stake\"},\"evmVersion\":\"london\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"details\":{\"constantOptimizer\":true,\"cse\":true,\"deduplicate\":true,\"inliner\":true,\"jumpdestRemover\":true,\"orderLiterals\":true,\"peephole\":true,\"yul\":false},\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../utils/ContextUpgradeable.sol\\\";\\nimport \\\"../proxy/utils/Initializable.sol\\\";\\n\\n/**\\n * @dev Contract module which provides a basic access control mechanism, where\\n * there is an account (an owner) that can be granted exclusive access to\\n * specific functions.\\n *\\n * By default, the owner account will be the one that deploys the contract. This\\n * can later be changed with {transferOwnership}.\\n *\\n * This module is used through inheritance. It will make available the modifier\\n * `onlyOwner`, which can be applied to your functions to restrict their use to\\n * the owner.\\n */\\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\\n address private _owner;\\n\\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n /**\\n * @dev Initializes the contract setting the deployer as the initial owner.\\n */\\n function __Ownable_init() internal onlyInitializing {\\n __Ownable_init_unchained();\\n }\\n\\n function __Ownable_init_unchained() internal onlyInitializing {\\n _transferOwnership(_msgSender());\\n }\\n\\n /**\\n * @dev Throws if called by any account other than the owner.\\n */\\n modifier onlyOwner() {\\n _checkOwner();\\n _;\\n }\\n\\n /**\\n * @dev Returns the address of the current owner.\\n */\\n function owner() public view virtual returns (address) {\\n return _owner;\\n }\\n\\n /**\\n * @dev Throws if the sender is not the owner.\\n */\\n function _checkOwner() internal view virtual {\\n require(owner() == _msgSender(), \\\"Ownable: caller is not the owner\\\");\\n }\\n\\n /**\\n * @dev Leaves the contract without owner. It will not be possible to call\\n * `onlyOwner` functions anymore. Can only be called by the current owner.\\n *\\n * NOTE: Renouncing ownership will leave the contract without an owner,\\n * thereby removing any functionality that is only available to the owner.\\n */\\n function renounceOwnership() public virtual onlyOwner {\\n _transferOwnership(address(0));\\n }\\n\\n /**\\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n * Can only be called by the current owner.\\n */\\n function transferOwnership(address newOwner) public virtual onlyOwner {\\n require(newOwner != address(0), \\\"Ownable: new owner is the zero address\\\");\\n _transferOwnership(newOwner);\\n }\\n\\n /**\\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n * Internal function without access restriction.\\n */\\n function _transferOwnership(address newOwner) internal virtual {\\n address oldOwner = _owner;\\n _owner = newOwner;\\n emit OwnershipTransferred(oldOwner, newOwner);\\n }\\n\\n /**\\n * @dev This empty reserved space is put in place to allow future versions to add new\\n * variables without shifting down storage in the inheritance chain.\\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\\n */\\n uint256[49] private __gap;\\n}\\n\",\"keccak256\":\"0x247c62047745915c0af6b955470a72d1696ebad4352d7d3011aef1a2463cd888\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)\\n\\npragma solidity ^0.8.2;\\n\\nimport \\\"../../utils/AddressUpgradeable.sol\\\";\\n\\n/**\\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\\n *\\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\\n * reused. This mechanism prevents re-execution of each \\\"step\\\" but allows the creation of new initialization steps in\\n * case an upgrade adds a module that needs to be initialized.\\n *\\n * For example:\\n *\\n * [.hljs-theme-light.nopadding]\\n * ```\\n * contract MyToken is ERC20Upgradeable {\\n * function initialize() initializer public {\\n * __ERC20_init(\\\"MyToken\\\", \\\"MTK\\\");\\n * }\\n * }\\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\\n * function initializeV2() reinitializer(2) public {\\n * __ERC20Permit_init(\\\"MyToken\\\");\\n * }\\n * }\\n * ```\\n *\\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\\n *\\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\\n *\\n * [CAUTION]\\n * ====\\n * Avoid leaving a contract uninitialized.\\n *\\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\\n *\\n * [.hljs-theme-light.nopadding]\\n * ```\\n * /// @custom:oz-upgrades-unsafe-allow constructor\\n * constructor() {\\n * _disableInitializers();\\n * }\\n * ```\\n * ====\\n */\\nabstract contract Initializable {\\n /**\\n * @dev Indicates that the contract has been initialized.\\n * @custom:oz-retyped-from bool\\n */\\n uint8 private _initialized;\\n\\n /**\\n * @dev Indicates that the contract is in the process of being initialized.\\n */\\n bool private _initializing;\\n\\n /**\\n * @dev Triggered when the contract has been initialized or reinitialized.\\n */\\n event Initialized(uint8 version);\\n\\n /**\\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\\n * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.\\n */\\n modifier initializer() {\\n bool isTopLevelCall = !_initializing;\\n require(\\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\\n \\\"Initializable: contract is already initialized\\\"\\n );\\n _initialized = 1;\\n if (isTopLevelCall) {\\n _initializing = true;\\n }\\n _;\\n if (isTopLevelCall) {\\n _initializing = false;\\n emit Initialized(1);\\n }\\n }\\n\\n /**\\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\\n * used to initialize parent contracts.\\n *\\n * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original\\n * initialization step. This is essential to configure modules that are added through upgrades and that require\\n * initialization.\\n *\\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\\n * a contract, executing them in the right order is up to the developer or operator.\\n */\\n modifier reinitializer(uint8 version) {\\n require(!_initializing && _initialized < version, \\\"Initializable: contract is already initialized\\\");\\n _initialized = version;\\n _initializing = true;\\n _;\\n _initializing = false;\\n emit Initialized(version);\\n }\\n\\n /**\\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\\n */\\n modifier onlyInitializing() {\\n require(_initializing, \\\"Initializable: contract is not initializing\\\");\\n _;\\n }\\n\\n /**\\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\\n * through proxies.\\n */\\n function _disableInitializers() internal virtual {\\n require(!_initializing, \\\"Initializable: contract is initializing\\\");\\n if (_initialized < type(uint8).max) {\\n _initialized = type(uint8).max;\\n emit Initialized(type(uint8).max);\\n }\\n }\\n}\\n\",\"keccak256\":\"0x0203dcadc5737d9ef2c211d6fa15d18ebc3b30dfa51903b64870b01a062b0b4e\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\\n\\npragma solidity ^0.8.0;\\nimport \\\"../proxy/utils/Initializable.sol\\\";\\n\\n/**\\n * @dev Contract module that helps prevent reentrant calls to a function.\\n *\\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\\n * available, which can be applied to functions to make sure there are no nested\\n * (reentrant) calls to them.\\n *\\n * Note that because there is a single `nonReentrant` guard, functions marked as\\n * `nonReentrant` may not call one another. This can be worked around by making\\n * those functions `private`, and then adding `external` `nonReentrant` entry\\n * points to them.\\n *\\n * TIP: If you would like to learn more about reentrancy and alternative ways\\n * to protect against it, check out our blog post\\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\\n */\\nabstract contract ReentrancyGuardUpgradeable is Initializable {\\n // Booleans are more expensive than uint256 or any type that takes up a full\\n // word because each write operation emits an extra SLOAD to first read the\\n // slot's contents, replace the bits taken up by the boolean, and then write\\n // back. This is the compiler's defense against contract upgrades and\\n // pointer aliasing, and it cannot be disabled.\\n\\n // The values being non-zero value makes deployment a bit more expensive,\\n // but in exchange the refund on every call to nonReentrant will be lower in\\n // amount. Since refunds are capped to a percentage of the total\\n // transaction's gas, it is best to keep them low in cases like this one, to\\n // increase the likelihood of the full refund coming into effect.\\n uint256 private constant _NOT_ENTERED = 1;\\n uint256 private constant _ENTERED = 2;\\n\\n uint256 private _status;\\n\\n function __ReentrancyGuard_init() internal onlyInitializing {\\n __ReentrancyGuard_init_unchained();\\n }\\n\\n function __ReentrancyGuard_init_unchained() internal onlyInitializing {\\n _status = _NOT_ENTERED;\\n }\\n\\n /**\\n * @dev Prevents a contract from calling itself, directly or indirectly.\\n * Calling a `nonReentrant` function from another `nonReentrant`\\n * function is not supported. It is possible to prevent this from happening\\n * by making the `nonReentrant` function external, and making it call a\\n * `private` function that does the actual work.\\n */\\n modifier nonReentrant() {\\n // On the first call to nonReentrant, _notEntered will be true\\n require(_status != _ENTERED, \\\"ReentrancyGuard: reentrant call\\\");\\n\\n // Any calls to nonReentrant after this point will fail\\n _status = _ENTERED;\\n\\n _;\\n\\n // By storing the original value once again, a refund is triggered (see\\n // https://eips.ethereum.org/EIPS/eip-2200)\\n _status = _NOT_ENTERED;\\n }\\n\\n /**\\n * @dev This empty reserved space is put in place to allow future versions to add new\\n * variables without shifting down storage in the inheritance chain.\\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\\n */\\n uint256[49] private __gap;\\n}\\n\",\"keccak256\":\"0x8cc03c5ac17e8a7396e487cda41fc1f1dfdb91db7d528e6da84bee3b6dd7e167\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20Upgradeable {\\n /**\\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n * another (`to`).\\n *\\n * Note that `value` may be zero.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n /**\\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n * a call to {approve}. `value` is the new allowance.\\n */\\n event Approval(address indexed owner, address indexed spender, uint256 value);\\n\\n /**\\n * @dev Returns the amount of tokens in existence.\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @dev Returns the amount of tokens owned by `account`.\\n */\\n function balanceOf(address account) external view returns (uint256);\\n\\n /**\\n * @dev Moves `amount` tokens from the caller's account to `to`.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transfer(address to, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Returns the remaining number of tokens that `spender` will be\\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n * zero by default.\\n *\\n * This value changes when {approve} or {transferFrom} are called.\\n */\\n function allowance(address owner, address spender) external view returns (uint256);\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n * that someone may use both the old and the new allowance by unfortunate\\n * transaction ordering. One possible solution to mitigate this race\\n * condition is to first reduce the spender's allowance to 0 and set the\\n * desired value afterwards:\\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address spender, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Moves `amount` tokens from `from` to `to` using the\\n * allowance mechanism. `amount` is then deducted from the caller's\\n * allowance.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(\\n address from,\\n address to,\\n uint256 amount\\n ) external returns (bool);\\n}\\n\",\"keccak256\":\"0x4e733d3164f73f461eaf9d8087a7ad1ea180bdc8ba0d3d61b0e1ae16d8e63dff\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\\n\\npragma solidity ^0.8.1;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary AddressUpgradeable {\\n /**\\n * @dev Returns true if `account` is a contract.\\n *\\n * [IMPORTANT]\\n * ====\\n * It is unsafe to assume that an address for which this function returns\\n * false is an externally-owned account (EOA) and not a contract.\\n *\\n * Among others, `isContract` will return false for the following\\n * types of addresses:\\n *\\n * - an externally-owned account\\n * - a contract in construction\\n * - an address where a contract will be created\\n * - an address where a contract lived, but was destroyed\\n * ====\\n *\\n * [IMPORTANT]\\n * ====\\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\\n *\\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\\n * constructor.\\n * ====\\n */\\n function isContract(address account) internal view returns (bool) {\\n // This method relies on extcodesize/address.code.length, which returns 0\\n // for contracts in construction, since the code is only stored at the end\\n // of the constructor execution.\\n\\n return account.code.length > 0;\\n }\\n\\n /**\\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n * `recipient`, forwarding all available gas and reverting on errors.\\n *\\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n * imposed by `transfer`, making them unable to receive funds via\\n * `transfer`. {sendValue} removes this limitation.\\n *\\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n *\\n * IMPORTANT: because control is transferred to `recipient`, care must be\\n * taken to not create reentrancy vulnerabilities. Consider using\\n * {ReentrancyGuard} or the\\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n */\\n function sendValue(address payable recipient, uint256 amount) internal {\\n require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n (bool success, ) = recipient.call{value: amount}(\\\"\\\");\\n require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n }\\n\\n /**\\n * @dev Performs a Solidity function call using a low level `call`. A\\n * plain `call` is an unsafe replacement for a function call: use this\\n * function instead.\\n *\\n * If `target` reverts with a revert reason, it is bubbled up by this\\n * function (like regular Solidity function calls).\\n *\\n * Returns the raw returned data. To convert to the expected return value,\\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n *\\n * Requirements:\\n *\\n * - `target` must be a contract.\\n * - calling `target` with `data` must not revert.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n * `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, 0, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but also transferring `value` wei to `target`.\\n *\\n * Requirements:\\n *\\n * - the calling contract must have an ETH balance of at least `value`.\\n * - the called Solidity function must be `payable`.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n * with `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.call{value: value}(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal view returns (bytes memory) {\\n require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.staticcall(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\\n * revert reason using the provided one.\\n *\\n * _Available since v4.3._\\n */\\n function verifyCallResult(\\n bool success,\\n bytes memory returndata,\\n string memory errorMessage\\n ) internal pure returns (bytes memory) {\\n if (success) {\\n return returndata;\\n } else {\\n // Look for revert reason and bubble it up if present\\n if (returndata.length > 0) {\\n // The easiest way to bubble the revert reason is using memory via assembly\\n /// @solidity memory-safe-assembly\\n assembly {\\n let returndata_size := mload(returndata)\\n revert(add(32, returndata), returndata_size)\\n }\\n } else {\\n revert(errorMessage);\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0x611aa3f23e59cfdd1863c536776407b3e33d695152a266fa7cfb34440a29a8a3\",\"license\":\"MIT\"},\"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\\n\\npragma solidity ^0.8.0;\\nimport \\\"../proxy/utils/Initializable.sol\\\";\\n\\n/**\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract ContextUpgradeable is Initializable {\\n function __Context_init() internal onlyInitializing {\\n }\\n\\n function __Context_init_unchained() internal onlyInitializing {\\n }\\n function _msgSender() internal view virtual returns (address) {\\n return msg.sender;\\n }\\n\\n function _msgData() internal view virtual returns (bytes calldata) {\\n return msg.data;\\n }\\n\\n /**\\n * @dev This empty reserved space is put in place to allow future versions to add new\\n * variables without shifting down storage in the inheritance chain.\\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\\n */\\n uint256[50] private __gap;\\n}\\n\",\"keccak256\":\"0x963ea7f0b48b032eef72fe3a7582edf78408d6f834115b9feadd673a4d5bd149\",\"license\":\"MIT\"},\"contracts/interfaces/ICandidateRegistry.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '../libraries/Types.sol';\\n\\n/// @dev Candidate registry interface\\n/// @author Alexandas\\ninterface ICandidateRegistry {\\n\\n\\t/// @dev emit when candidate registered\\n\\t/// @param candidate candidate address\\n\\tevent Register(address candidate);\\n\\n\\t/// @dev register a candidate with node manifest\\n\\t/// @param manifest node manifest\\n\\tfunction register(string memory manifest) external;\\n\\n\\t/// @dev return a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return candidate information\\n\\tfunction candidateInfo(address candidate) external view returns(Types.CandidateInfo memory);\\n\\n\\t/// @dev return a candidate address for a specific node manifest\\n\\t/// @param manifest node manifest\\n\\t/// @return candidate address\\n\\tfunction manifestMap(string memory manifest) external view returns(address);\\n\\n\\t/// @dev return whether a candidate is registered\\n\\t/// @param candidate candidate address\\n\\t/// @return whether the candidate is registered\\n\\tfunction isCandidateRegistered(address candidate) external view returns (bool);\\n\\n\\t/// @dev return grade of a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return candidate grade\\n\\tfunction gradeOf(address candidate) external view returns (Types.Grade);\\n\\n}\\n\",\"keccak256\":\"0xd8519308649be704107281712dcbe57e3720c5458193a2ab40dc51cebcb43b80\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol';\\n\\n/// @dev Burnable ERC20 Token interface\\n/// @author Alexandas\\ninterface IERC20 is IERC20Upgradeable {\\n\\n\\t/// @dev burn tokens\\n\\t/// @param amount token amount\\n\\tfunction burn(uint256 amount) external;\\n\\n\\t/// @dev burn tokens\\n\\t/// @param account user address\\n\\t/// @param amount token amount\\n\\tfunction burnFrom(address account, uint256 amount) external;\\n\\n}\\n\",\"keccak256\":\"0xb45f4f11d5a0a93d60c5238dfce558196db50b3986cee01f2e65b8781bcb7d4f\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IElection.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport './IRewarder.sol';\\nimport './IStake.sol';\\nimport './IMajorCandidates.sol';\\nimport './IERC20.sol';\\n\\n/// @dev Election contract interface\\n/// @author Alexandas\\ninterface IElection {\\n\\n\\t/// @dev emit when ERC20 token address updated\\n\\t/// @param token ERC20 token address\\n\\tevent TokenUpdated(IERC20 token);\\n\\n\\t/// @dev emit when `Rewarder` contract updated\\n\\t/// @param rewarder `Rewarder` contract \\n\\tevent RewarderUpdated(IRewarder rewarder);\\n\\n\\t/// @dev emit when `Stake` contract updated\\n\\t/// @param stake `Stake` contract \\n\\tevent StakeUpdated(IStake stake);\\n\\n\\t/// @dev emit when `MajorCandidates` contract updated\\n\\t/// @param majorCandidates `MajorCandidates` contract \\n\\tevent MajorCandidatesUpdated(IMajorCandidates majorCandidates);\\n\\n\\t/// @dev emit when vote frozen period updated\\n\\t/// @param period vote frozen period\\n\\tevent VoteFrozenPeriodUpdated(uint256 period);\\n\\n\\t/// @dev emit when shares updated for a specific candidate\\n\\t/// @param candidate candidate address\\n\\tevent ShareUpdated(address candidate);\\n\\n\\t/// @dev emit when voter voted for a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param voter voter address\\n\\t/// @param amount token amount\\n\\tevent Vote(address candidate, address voter, uint256 amount);\\n\\n\\t/// @dev emit when voter claimed the reward\\n\\t/// @param candidate candidate address\\n\\t/// @param voter voter address\\n\\t/// @param to receiver address\\n\\t/// @param amount reward amount\\n\\tevent Claimed(address candidate, address voter, address to, uint256 amount);\\n\\n\\t/// @dev emit when voter withdrawn the votes\\n\\t/// @param candidate candidate address\\n\\t/// @param voter voter address\\n\\t/// @param to receiver address\\n\\t/// @param amount reward amount\\n\\tevent Withdrawn(address candidate, address voter, address to, uint256 amount);\\n\\n\\t/// @dev voter vote a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param voter voter address\\n\\t/// @param amount reward amount\\n\\t/// @param anchor anchor candidate address\\n\\t/// @param maxSlippage maximum rank change value for the candidate from the anchor candidate\\n\\tfunction vote(\\n\\t\\taddress candidate,\\n\\t\\taddress voter,\\n\\t\\tuint256 amount,\\n\\t\\taddress anchor,\\n\\t\\tuint256 maxSlippage\\n\\t) external;\\n\\n\\t/// @dev voter claim reward for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param to receiver address\\n\\tfunction claim(address candidate, address to) external;\\n\\n\\t/// @dev voter withdraw reward for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param amount reward amount\\n\\t/// @param to receiver address\\n\\t/// @param anchor anchor candidate address\\n\\t/// @param maxSlippage maximum rank change value for the candidate from the anchor candidate\\n\\tfunction withdraw(\\n\\t\\taddress candidate,\\n\\t\\tuint256 amount,\\n\\t\\taddress to,\\n\\t\\taddress anchor,\\n\\t\\tuint256 maxSlippage\\n\\t) external;\\n\\n\\t/// @dev voter withdraw votes and claim reward for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param amount reward amount\\n\\t/// @param to receiver address\\n\\t/// @param anchor anchor candidate address\\n\\t/// @param maxSlippage maximum rank change value for the candidate from the anchor candidate\\n\\tfunction withdrawAndClaim(\\n\\t\\taddress candidate,\\n\\t\\tuint256 amount,\\n\\t\\taddress to,\\n\\t\\taddress anchor,\\n\\t\\tuint256 maxSlippage\\n\\t) external;\\n\\n\\t/// @dev candidate allocate reward for the voters\\n\\t/// @param candidate candidate address\\n\\t/// @param amount reward amount\\n\\tfunction onAllocate(address candidate, uint256 amount) external;\\n\\n\\t/// @dev return ERC20 token address\\n\\tfunction token() external view returns(IERC20);\\n\\n\\t/// @dev return `Rewarder` contract address\\n\\tfunction rewarder() external view returns(IRewarder);\\n\\n\\t/// @dev return `Stake` contract address\\n\\tfunction stake() external view returns(IStake);\\n\\n\\t/// @dev return `MajorCandidates` contract address\\n\\tfunction majorCandidates() external view returns(IMajorCandidates);\\n\\n\\t/// @dev return precision for shares\\n\\tfunction ACC_PRECISION() external view returns(uint256);\\n\\n\\t/// @dev return votes for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return votes for a specific candidate\\n\\tfunction voteSupply(address candidate) external view returns(uint256);\\n\\n\\t/// @dev pending reward for a voter given a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param voter voter address\\n\\t/// @return pending pending reward\\n\\tfunction pendingReward(address candidate, address voter) external view returns (uint256 pending);\\n\\n}\\n\",\"keccak256\":\"0xad12e388dbfd8245c6e33fc8bd3adeb0a77c5ebcf28fd189114044d026670e7d\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IMajorCandidates.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport './IElection.sol';\\nimport './IStake.sol';\\n\\n/// @dev MajorCandidates interface\\n/// @author Alexandas\\ninterface IMajorCandidates {\\n\\n\\t/// @dev emit when max major candidates changed\\n\\t/// @param max max major candidates\\n\\tevent MaxMajorCandidateUpdated(uint256 max);\\n\\n\\t/// @dev emit when `Election` contract changed\\n\\t/// @param election `Election` contract address\\n\\tevent ElectionUpdated(IElection election);\\n\\n\\t/// @dev emit when `Stake` contract updated\\n\\t/// @param stake `Stake` contract \\n\\tevent StakeUpdated(IStake stake);\\n\\n\\t/// @dev emit when a candidate insert or update in the sorted list\\n\\t/// @param candidate candidate address\\n\\t/// @param amount candidate votes\\n\\tevent UpsetCandidate(address candidate, uint256 amount);\\n\\n\\t/// @dev emit when a candidate removed from the sorted list\\n\\t/// @param candidate candidate address\\n\\tevent RemoveCandidate(address candidate);\\n\\n\\t/// @dev insert or update a candidate in the sorted list\\n\\t/// @param candidate candidate address\\n\\t/// @param amount candidate votes\\n\\t/// @param anchor anchor candidate address\\n\\t/// @param maxSlippage maximum rank change value for the candidate from the anchor candidate\\n\\tfunction upsetCandidateWithAnchor(\\n\\t\\taddress candidate,\\n\\t\\tuint256 amount,\\n\\t\\taddress anchor,\\n\\t\\tuint256 maxSlippage\\n\\t) external;\\n\\n\\t/// @dev emit removed a candidate from the sorted list\\n\\t/// @param candidate candidate address\\n\\tfunction remove(address candidate) external;\\n\\n\\t/// @dev return max major candidates\\n\\tfunction MAX_MAJOR_CANDIDATES() external view returns(uint256);\\n\\n\\t/// @dev return `Election` contract address\\n\\tfunction election() external view returns(IElection);\\n\\n\\t/// @dev return `Stake` contract address\\n\\tfunction stake() external view returns(IStake);\\n\\n\\t/// @dev return whether a candidate is existed in the sorted list\\n\\t/// @param candidate candidate address\\n\\t/// @return whether the candidate is existed in the sorted list\\n\\tfunction exists(address candidate) external view returns (bool);\\n\\n\\t/// @dev return whether a candidate is a major candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return existed the candidate is a major candidate\\n\\tfunction isMajor(address candidate) external view returns(bool existed);\\n\\n\\t/// @dev return all major candidates\\n\\t/// @return majors all major candidates\\n\\tfunction majorCandidateList() external view returns(address[] memory majors);\\n\\n\\n}\\n\",\"keccak256\":\"0xe81b3600f2652084188b90a53ca9078786c17c5ffa59486a56c4a62250660f9b\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IPools.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport './IERC20.sol';\\nimport './IRewarder.sol';\\nimport '../libraries/Types.sol';\\n\\n/// @dev Pools interface\\n/// @author Alexandas\\ninterface IPools {\\n\\n\\t/// @dev emit when ERC20 Token contract updated\\n\\t/// @param token ERC20 Token contract\\n\\tevent TokenUpdated(IERC20 token);\\n\\n\\t/// @dev emit when `Rewarder` contract updated\\n\\t/// @param rewarder `Rewarder` contract \\n\\tevent RewarderUpdated(IRewarder rewarder);\\n\\n\\t/// @dev emit when `rewardPerSecond` updated\\n\\t/// @param rewardPerSecond reward generated for per second\\n\\tevent RewardPerSecondUpdated(uint256 rewardPerSecond);\\n\\n\\t/// @dev emit when shares precision updated\\n\\t/// @param precision shares precision\\n\\tevent PrecisionUpdated(uint256 precision);\\n\\n\\t/// @dev emit when max coefficient updated\\n\\t/// @param maxCoef max coefficient\\n\\tevent MaxCoefUpdated(uint256 maxCoef);\\n\\n\\t/// @dev emit when add a pool\\n\\t/// @param grade pool grade\\n\\tevent AddPool(Types.Grade grade);\\n\\n\\t/// @dev emit when pool updated\\n\\t/// @param grade pool grade\\n\\tevent PoolUpdated(Types.Grade grade);\\n\\n\\t/// @dev return ERC20 token address\\n\\tfunction token() external view returns(IERC20);\\n\\n\\t/// @dev return `Rewarder` contract address\\n\\tfunction rewarder() external view returns(IRewarder);\\n\\n\\t/// @dev return precision for shares\\n\\tfunction ACC_PRECISION() external view returns(uint256);\\n\\n\\t/// @dev return max coefficient\\n\\tfunction MAXCOEF() external view returns(uint256);\\n\\n\\t/// @dev return total pools allocation points\\n\\tfunction totalAllocPoint() external view returns(uint256);\\n\\n\\t/// @dev return reward generated for per second\\n\\tfunction rewardPerSecond() external view returns(uint256);\\n\\n\\t/// @dev update a specific pool\\n\\t/// @param grade pool grade\\n\\t/// @return pool pool info\\n\\tfunction updatePool(Types.Grade grade) external returns (Types.PoolInfo memory pool);\\n\\n\\t/// @dev return a specific pool\\n\\t/// @param grade pool grade\\n\\t/// @return pool pool info\\n\\tfunction poolInfo(Types.Grade grade) external view returns(Types.PoolInfo memory);\\n\\n}\\n\",\"keccak256\":\"0xc5f1962a2579d1fadb8669766b62564436a6c4b779e38b0f9271fe74c7cbd613\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IRewarder.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol';\\nimport './IERC20.sol';\\n\\n/// @dev Rewarder interface\\n/// @author Alexandas\\ninterface IRewarder {\\n\\n\\t/// @dev emit when ERC20 token address updated\\n\\t/// @param token ERC20 token address\\n\\tevent TokenUpdated(IERC20 token);\\n\\n\\t/// @dev emit when auth address updated\\n\\t/// @param auth authorized address\\n\\tevent AuthUpdated(address auth);\\n\\n\\t/// @dev emit when reward minted\\n\\t/// @param from authorized address\\n\\t/// @param to receiver address\\n\\t/// @param amount token amount\\n\\tevent Minted(address from, address to, uint256 amount);\\n\\n\\t/// @dev return ERC20 token address\\n\\tfunction token() external view returns(IERC20);\\n\\n\\t/// @dev mint reward to receiver\\n\\t/// @param to receiver address\\n\\t/// @param amount token amount\\n\\tfunction mint(address to, uint256 amount) external;\\n\\n}\",\"keccak256\":\"0xc41fb19972737ba746c9dea24922b35745aaff3a6c5839993269a843bffe3160\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/ISlasher.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '../libraries/Types.sol';\\nimport './IMajorCandidates.sol';\\nimport './IStake.sol';\\n\\n/// @dev Slasher interface\\n/// @author Alexandas\\ninterface ISlasher {\\n\\n\\t/// @dev emit when governance address updated\\n\\t/// @param governance governance address\\n\\tevent GovernanceUpdated(address governance);\\n\\n\\t/// @dev emit when `Stake` contract updated\\n\\t/// @param stake `Stake` contract \\n\\tevent StakeUpdated(IStake stake);\\n\\n\\t/// @dev emit when `MajorCandidates` contract updated\\n\\t/// @param majorCandidates `MajorCandidates` contract \\n\\tevent MajorCandidatesUpdated(IMajorCandidates majorCandidates);\\n\\n\\t/// @dev emit when default slash amount updated\\n\\t/// @param amount slash amount\\n\\tevent DefaultSlashAmountUpdated(uint256 amount);\\n\\n\\t/// @dev emit when public notice period updated\\n\\t/// @param period public notice period\\n\\tevent PublicNoticePeriodUpdated(uint256 period);\\n\\n\\t/// @dev emit when max coefficient updated\\n\\t/// @param maxCoef max coefficient\\n\\tevent MaxCoefUpdated(uint256 maxCoef);\\n\\n\\t/// @dev emit when drafter slash reward coefficient updated\\n\\t/// @param drafterCoef drafter slash reward coefficient\\n\\tevent DrafterCoefUpdated(uint64 drafterCoef);\\n\\n\\t/// @dev emit when validator slash reward coefficient updated\\n\\t/// @param validatorCoef validator slash reward coefficient\\n\\tevent ValidatorCoefUpdated(uint256 validatorCoef);\\n\\n\\t/// @dev emit when executor slash reward coefficient updated\\n\\t/// @param executorCoef executor slash reward coefficient\\n\\tevent ExecutorCoefUpdated(uint256 executorCoef);\\n\\n\\t/// @dev emit when slash drafted\\n\\t/// @param nonce slash number\\n\\t/// @param candidate candidate address\\n\\t/// @param slashBlock slashed block in posc\\n\\t/// @param manifest node manifest\\n\\t/// @param accuracy posc accuracy\\n\\tevent DraftSlash(uint256 nonce, address candidate, uint64 slashBlock, string manifest, uint64 accuracy);\\n\\n\\t/// @dev emit when slash drafted\\n\\t/// @param nonce slash number\\n\\tevent RejectSlash(uint256 nonce);\\n\\n\\t/// @dev emit when slash drafted\\n\\t/// @param nonce slash number\\n\\tevent ExecuteSlash(uint256 nonce, address executor);\\n\\n\\t/// @dev return `Stake` contract address\\n\\tfunction stake() external view returns(IStake);\\n\\n\\t/// @dev return `MajorCandidates` contract address\\n\\tfunction majorCandidates() external view returns(IMajorCandidates);\\n\\n\\t/// @dev return default slash amount\\n\\tfunction defaultSlashAmount() external view returns(uint256);\\n\\n\\t/// @dev return public notice period\\n\\tfunction publicNoticePeriod() external view returns(uint256);\\n\\n\\t/// @dev return current slash nonce\\n\\tfunction nonce() external view returns(uint256);\\n\\n\\t/// @dev return max coefficient\\n\\tfunction MAXCOEF() external view returns(uint64);\\n\\n\\t/// @dev return drafter slash reward coefficient\\n\\tfunction drafterCoef() external view returns(uint64);\\n\\n\\t/// @dev return validator slash reward coefficient\\n\\tfunction validatorCoef() external view returns(uint64);\\n\\n\\t/// @dev return executor slash reward coefficient\\n\\tfunction executorCoef() external view returns(uint64);\\n\\n\\t/// @dev return slash information at a specific nonce\\n\\t/// @param _nonce nonce number\\n\\t/// @return slash information\\n\\tfunction getSlashAt(uint256 _nonce) external view returns(Types.SlashInfo memory);\\n\\n\\t/// @dev return nonce given a candidate if the candidate is in slashing\\n\\t/// @param candidate candidate address\\n\\t/// @return nonce number\\n\\tfunction nonceOf(address candidate) external view returns(uint256);\\n\\n\\t/// @dev set drafter slash reward coefficient\\n\\t/// @param _drafterCoef drafter slash reward coefficient\\n\\tfunction setDrafterCoef(uint64 _drafterCoef) external;\\n\\n\\t/// @dev set validator slash reward coefficient\\n\\t/// @param _validatorCoef validator slash reward coefficient\\n\\tfunction setValidatorCoef(uint64 _validatorCoef) external;\\n\\n\\t/// @dev set executor slash reward coefficient\\n\\t/// @param _executorCoef executor slash reward coefficient\\n\\tfunction setExecutorCoef(uint64 _executorCoef) external;\\n\\n\\t/// @dev draft a slash\\n\\t/// @param slashBlock slashed block in posc\\n\\t/// @param manifest node manifest\\n\\t/// @param accuracy posc accuracy\\n\\t/// @param signatures major candidates signatures\\n\\tfunction draft(uint64 slashBlock, string memory manifest, uint64 accuracy, bytes[] memory signatures) external;\\n\\n\\t/// @dev reject a slash\\n\\t/// @param manifest node manifest\\n\\tfunction reject(string memory manifest) external;\\n\\n\\t/// @dev execute a slash\\n\\t/// @param manifest node manifest\\n\\tfunction execute(string memory manifest) external;\\n\\n\\t/// @dev return whether candidate is in slashing\\n\\t/// @param candidate candidate address\\n\\t/// @return whether candidate is in slashing\\n\\tfunction slashExists(address candidate) external view returns(bool);\\n\\n\\t/// @dev check whether signatures is valid\\n\\t/// @param hash message hash\\n\\t/// @param signatures signatures for major candidates\\n\\t/// @param signers major candidate signers\\n\\tfunction checkNSignatures(bytes32 hash, bytes[] memory signatures) external view returns(address[] memory signers);\\n\\n}\\n\",\"keccak256\":\"0x2a098f6fdb061970bf7f00c0018f3950b5d96d7d0702b21bfde897f973e6e36b\",\"license\":\"GPL-2.0-or-later\"},\"contracts/interfaces/IStake.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport './IElection.sol';\\nimport './IMajorCandidates.sol';\\nimport './ISlasher.sol';\\nimport './IPools.sol';\\nimport './ICandidateRegistry.sol';\\n\\n/// @dev Stake interface\\n/// @author Alexandas\\ninterface IStake is IPools, ICandidateRegistry {\\n\\n\\t/// @dev emit when `Election` contract changed\\n\\t/// @param election `Election` contract address\\n\\tevent ElectionUpdated(IElection election);\\n\\n\\t/// @dev emit when `MajorCandidates` contract updated\\n\\t/// @param majorCandidates `MajorCandidates` contract \\n\\tevent IMajorCandidatesUpdated(IMajorCandidates majorCandidates);\\n\\n\\t/// @dev emit when `Slasher` contract updated\\n\\t/// @param slasher `Slasher` contract \\n\\tevent SlasherUpdated(ISlasher slasher);\\n\\n\\t/// @dev emit when minimum stake updated\\n\\t/// @param amount minimum stake\\n\\tevent MinStakeUpdated(uint256 amount);\\n\\n\\t/// @dev emit when stake frozen period updated\\n\\t/// @param period stake frozen period\\n\\tevent StakeFrozenPeriodUpdated(uint256 period);\\n\\n\\t/// @dev emit when claim frozen period updated\\n\\t/// @param period claim frozen period\\n\\tevent ClaimFrozenPeriodUpdated(uint256 period);\\n\\n\\t/// @dev emit when a candidate upgraded\\n\\t/// @param candidate candidate address\\n\\t/// @param fromGrade from grade\\n\\t/// @param toGrade to grade\\n\\tevent Upgrade(address candidate, Types.Grade fromGrade, Types.Grade toGrade);\\n\\n\\t/// @dev emit when a candidate downgraded\\n\\t/// @param candidate candidate address\\n\\t/// @param fromGrade from grade\\n\\t/// @param toGrade to grade\\n\\tevent Downgrade(address candidate, Types.Grade fromGrade, Types.Grade toGrade);\\n\\n\\t/// @dev emit when a candidate staked tokens\\n\\t/// @param from token consumer\\n\\t/// @param candidate candidate address\\n\\t/// @param amount token amount\\n\\tevent Stake(address from, address candidate, uint256 amount);\\n\\n\\t/// @dev emit when a candidate withdraw tokens\\n\\t/// @param candidate candidate address\\n\\t/// @param to token receiver\\n\\t/// @param amount token amount\\n\\tevent Withdrawn(address candidate, address to, uint256 amount);\\n\\n\\t/// @dev emit when a candidate claimed reward\\n\\t/// @param candidate candidate address\\n\\t/// @param to token receiver\\n\\t/// @param pending token amount\\n\\tevent Claimed(address candidate, address to, uint256 pending);\\n\\n\\t/// @dev emit when a candidate quit from the protocol\\n\\t/// @param grade candidate grade\\n\\t/// @param candidate candidate address\\n\\tevent Quit(Types.Grade grade, address candidate);\\n\\n\\t/// @dev emit when a candidate allocate reward for the voters\\n\\t/// @param candidate candidate address\\n\\t/// @param amount token amount\\n\\tevent VoterAllocated(address candidate, uint256 amount);\\n\\n\\t/// @dev emit when the reward for a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param amount token amount\\n\\tevent CandidateAllocated(address candidate, uint256 amount);\\n\\n\\t/// @dev emit when the vote reward coefficient updated\\n\\t/// @param coef vote reward coefficient\\n\\tevent VoteRewardCoefUpdated(uint256 coef);\\n\\n\\t/// @dev emit when drafted a slash\\n\\t/// @param candidate candidate address\\n\\t/// @param pendingSlash pending slash amount\\n\\tevent DraftSlash(address candidate, uint256 pendingSlash);\\n\\n\\t/// @dev emit when rejected a slash\\n\\t/// @param candidate candidate address\\n\\t/// @param pendingSlash pending slash amount\\n\\tevent RejectSlash(address candidate, uint256 pendingSlash);\\n\\n\\t/// @dev emit when executed a slash\\n\\t/// @param candidate candidate address\\n\\t/// @param pendingSlash pending slash amount\\n\\t/// @param beneficiaries slash reward beneficiaries\\n\\t/// @param amounts slash reward amounts\\n\\t/// @param burned burned amount\\n\\tevent ExcuteSlash(address candidate, uint256 pendingSlash, address[] beneficiaries, uint256[] amounts, uint256 burned);\\n\\n\\t/// @dev return `Election` contract\\n\\tfunction election() external view returns(IElection);\\n\\n\\t/// @dev return `MajorCandidates` contract\\n\\tfunction majorCandidates() external view returns(IMajorCandidates);\\n\\n\\t/// @dev return `Slasher` contract\\n\\tfunction slasher() external returns(ISlasher);\\n\\n\\t/// @dev candidate stake tokens\\n\\t/// @param amount token amount\\n\\tfunction stake(uint256 amount) external;\\n\\n\\t/// @dev register a candidate and stake tokens\\n\\t/// @param amount token amount\\n\\t/// @param manifest node manifest\\n\\tfunction registerAndStake(uint256 amount, string memory manifest) external;\\n\\n\\t/// @dev candidate quit from the protocol\\n\\t/// @param to token receiver\\n\\tfunction quit(address to) external;\\n\\n\\t/// @dev candidate claim reward from the protocol\\n\\t/// @param to token receiver\\n\\tfunction claim(address to) external;\\n\\n\\t/// @dev candidate withdraw the tokens and claim reward from the protocol\\n\\t/// @param amount token amount\\n\\t/// @param to token receiver\\n\\t// function withdrawAndClaim(uint256 amount, address to) external;\\n\\n\\t/// @dev return pending reward for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return pending reward for the candidate\\n\\tfunction pendingReward(address candidate) external view returns (uint256 pending);\\n\\n\\t/// @dev set voter slash reward coefficient\\n\\t/// @param coef voter reward coefficient\\n\\tfunction setVoteRewardCoef(uint256 coef) external;\\n\\n\\t/// @dev set allocate the reward to voters from the candidate\\n\\t/// @param candidate candidate address\\n\\tfunction voterAllocate(address candidate) external;\\n\\n\\t/// @dev return voter reward coefficient for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return coef voter reward coefficient\\n\\tfunction voteRewardCoef(address candidate) external view returns (uint256 coef);\\n\\n\\t/// @dev return pending voters allocation for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return pending pending voters allocation\\n\\tfunction pendingVoterAllocation(address candidate) external view returns (uint256 pending);\\n\\n\\t/// @dev return pending candidate allocation\\n\\t/// @param candidate candidate address\\n\\t/// @return pending pending candidate allocation\\n\\tfunction pendingCandidateAllocation(address candidate) external view returns (uint256 pending);\\n\\n\\t/// @dev upgrade a candidate\\n\\t/// @param candidate candidate address\\n\\tfunction upgrade(address candidate) external;\\n\\n\\t/// @dev downgrade a candidate\\n\\t/// @param candidate candidate address\\n\\tfunction downgrade(address candidate) external;\\n\\n\\t/// @dev draft a slash for a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param amount slash amount\\n\\t/// @return pendingSlash real slash amount\\n\\tfunction draftSlash(address candidate, uint256 amount) external returns(uint256 pendingSlash);\\n\\n\\t/// @dev reject a slash for a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @param pendingSlash real slash amount\\n\\tfunction rejectSlash(address candidate, uint256 pendingSlash) external;\\n\\n\\t/// @dev executed a slash for a candiate\\n\\t/// @param candidate candidate address\\n\\t/// @param slash slash amount\\n\\t/// @param beneficiaries slash reward beneficiaries\\n\\t/// @param amounts slash reward amounts\\n\\t/// @param burned burned amount\\n\\tfunction executeSlash(\\n\\t\\taddress candidate, \\n\\t\\tuint256 slash,\\n\\t\\taddress[] memory beneficiaries, \\n\\t\\tuint256[] memory amounts,\\n\\t\\tuint256 burned\\n\\t) external;\\n}\",\"keccak256\":\"0x9eeba75d51080c9762f25fb5872a0dc0e92aa3f7ec3533957379e6f10cb7978a\",\"license\":\"GPL-2.0-or-later\"},\"contracts/libraries/SignedSafeMath.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nlibrary SignedSafeMath {\\n int256 constant private _INT256_MIN = -2**255;\\n\\n /**\\n * @dev Returns the multiplication of two signed integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n *\\n * - Multiplication cannot overflow.\\n */\\n function mul(int256 a, int256 b) internal pure returns (int256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n require(!(a == -1 && b == _INT256_MIN), 'SignedSafeMath: multiplication overflow');\\n\\n int256 c = a * b;\\n require(c / a == b, 'SignedSafeMath: multiplication overflow');\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the integer division of two signed integers. Reverts on\\n * division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function div(int256 a, int256 b) internal pure returns (int256) {\\n require(b != 0, 'SignedSafeMath: division by zero');\\n require(!(b == -1 && a == _INT256_MIN), 'SignedSafeMath: division overflow');\\n\\n int256 c = a / b;\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two signed integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n *\\n * - Subtraction cannot overflow.\\n */\\n function sub(int256 a, int256 b) internal pure returns (int256) {\\n int256 c = a - b;\\n require((b >= 0 && c <= a) || (b < 0 && c > a), 'SignedSafeMath: subtraction overflow');\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the addition of two signed integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n *\\n * - Addition cannot overflow.\\n */\\n function add(int256 a, int256 b) internal pure returns (int256) {\\n int256 c = a + b;\\n require((b >= 0 && c >= a) || (b < 0 && c < a), 'SignedSafeMath: addition overflow');\\n\\n return c;\\n }\\n\\n function toUInt256(int256 a) internal pure returns (uint256) {\\n require(a >= 0, 'Integer < 0');\\n return uint256(a);\\n }\\n}\",\"keccak256\":\"0x0e4a58629038a9130bf13ae2f79dedcc3aab53cbc9989f20d82d35271d1fd6eb\",\"license\":\"GPL-2.0-or-later\"},\"contracts/libraries/Types.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nlibrary Types {\\n\\n\\tenum Grade {\\n\\t\\tNull,\\n\\t\\tMajor,\\n\\t\\tSecondary\\n\\t}\\n\\n\\tstruct CandidateInfo {\\n\\t\\tGrade grade;\\n\\t\\tuint256 amount;\\n\\t\\tint256 rewardDebt;\\n\\t\\tuint256 allocation;\\n\\t\\tstring manifest;\\n\\t}\\n\\n\\tstruct PoolInfo {\\n\\t\\tuint256 accPerShare;\\n\\t\\tuint256 lastRewardTime;\\n\\t\\tuint256 allocPoint;\\n\\t}\\n\\n\\tenum SlashStatus {\\n\\t\\tDrafted,\\n\\t\\tRejected,\\n\\t\\tExecuted\\n\\t}\\n\\n\\tstruct SlashInfo {\\n\\t\\taddress candidate;\\n\\t\\taddress drafter;\\n\\t\\taddress[] validators;\\n\\t\\tuint256 amount;\\n\\t\\tuint256 timestamp;\\n\\t\\tSlashStatus status;\\n\\t}\\n\\n}\\n\",\"keccak256\":\"0x5260f5f3e8e5cf789e355d0f4827e5c6a9c4289545a2a9d94732830cd80a9a1e\",\"license\":\"GPL-2.0-or-later\"},\"contracts/stake/CandidateRegistry.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '../interfaces/ICandidateRegistry.sol';\\n\\n/// @dev Candidate registry contract\\n/// @author Alexandas\\ncontract CandidateRegistry is ICandidateRegistry {\\n\\n\\tmapping(address => Types.CandidateInfo) internal candidates;\\n\\n\\t/// @dev return a candidate address for a specific node manifest\\n\\tmapping(string => address) public override manifestMap;\\n\\n\\t/// @dev register a candidate with node manifest\\n\\t/// @param manifest node manifest\\n\\tfunction register(string memory manifest) external override {\\n\\t\\t_register(msg.sender, manifest);\\n\\t}\\n\\n\\tfunction _register(address candidate, string memory manifest) internal {\\n\\t\\trequire(candidates[candidate].grade == Types.Grade.Null, 'CandidateRegistry: candidate exists');\\n\\t\\trequire(manifestMap[manifest] == address(0), 'CandidateRegistry: manifest exists');\\n\\t\\tmanifestMap[manifest] = candidate;\\n\\t\\tcandidates[candidate].grade = Types.Grade.Secondary;\\n\\t\\tcandidates[candidate].manifest = manifest;\\n\\t\\temit Register(candidate);\\n\\t}\\n\\n\\t/// @dev return a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return candidate information\\n\\tfunction candidateInfo(address candidate) public view override returns (Types.CandidateInfo memory) {\\n\\t\\treturn candidates[candidate];\\n\\t}\\n\\n\\t/// @dev return whether a candidate is registered\\n\\t/// @param candidate candidate address\\n\\t/// @return whether the candidate is registered\\n\\tfunction isCandidateRegistered(address candidate) public view override returns (bool) {\\n\\t\\treturn candidates[candidate].grade != Types.Grade.Null;\\n\\t}\\n\\n\\t/// @dev return grade of a candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return candidate grade\\n\\tfunction gradeOf(address candidate) public view override returns (Types.Grade) {\\n\\t\\treturn candidates[candidate].grade;\\n\\t}\\n\\n}\\n\",\"keccak256\":\"0x710c4f3689ca75bb5d963068946e782a57029c099873a805f620f736dad4790a\",\"license\":\"GPL-2.0-or-later\"},\"contracts/stake/Pools.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol';\\nimport '../interfaces/IPools.sol';\\n\\n/// @dev Pools contract\\n/// @author Alexandas\\ncontract Pools is IPools {\\n\\n\\t/// @dev return ERC20 token address\\n\\tIERC20 public override token;\\n\\n\\t/// @dev return `Rewarder` contract address\\n\\tIRewarder public override rewarder;\\n\\n\\t/// @dev return precision for shares\\n\\tuint256 public override ACC_PRECISION;\\n\\n\\t/// @dev return max coefficient\\n\\tuint256 public override MAXCOEF;\\n\\n\\t/// @dev return total pools allocation points\\n\\tuint256 public override totalAllocPoint;\\n\\n\\t/// @dev return reward generated for per second\\n\\tuint256 public override rewardPerSecond;\\n\\n\\tmapping(Types.Grade => Types.PoolInfo) internal pools;\\n\\n\\tfunction _addPool(\\n\\t\\tTypes.Grade grade,\\n\\t\\tuint256 allocPoint\\n\\t) internal {\\n\\t\\trequire(pools[grade].allocPoint == 0, 'Pools: pool exists');\\n\\t\\ttotalAllocPoint = totalAllocPoint + allocPoint;\\n\\t\\tpools[grade] = Types.PoolInfo({ allocPoint: allocPoint, lastRewardTime: block.timestamp, accPerShare: 0 });\\n\\t\\temit AddPool(grade);\\n\\t}\\n\\n\\t/// @dev update a specific pool\\n\\t/// @param grade pool grade\\n\\t/// @return pool pool info\\n\\tfunction updatePool(Types.Grade grade) public override returns (Types.PoolInfo memory pool) {\\n\\t\\trequire(poolExists(grade), 'Pools: nonexistent pool');\\n\\t\\tpool = pools[grade];\\n\\t\\tif (block.timestamp > pool.lastRewardTime) {\\n\\t\\t\\tuint256 lpSupply = token.balanceOf(address(this));\\n\\t\\t\\tif (lpSupply > 0) {\\n\\t\\t\\t\\tuint256 time = block.timestamp - pool.lastRewardTime;\\n\\t\\t\\t\\tuint256 reward = time * rewardPerSecond * pool.allocPoint / totalAllocPoint;\\n\\t\\t\\t\\tpool.accPerShare = pool.accPerShare + (reward * ACC_PRECISION / lpSupply);\\n\\t\\t\\t}\\n\\t\\t\\tpool.lastRewardTime = block.timestamp;\\n\\t\\t\\tpools[grade] = pool;\\n\\t\\t}\\n\\t\\temit PoolUpdated(grade);\\n\\t}\\n\\n\\t/// @dev return a specific pool\\n\\t/// @param grade pool grade\\n\\t/// @return pool pool info\\n\\tfunction poolInfo(Types.Grade grade) public view override returns (Types.PoolInfo memory) {\\n\\t\\treturn pools[grade];\\n\\t}\\n\\n\\tfunction poolExists(Types.Grade grade) public view returns (bool) {\\n\\t\\treturn pools[grade].allocPoint != 0;\\n\\t}\\n\\n\\tfunction _setRewardPerSecond(uint256 _rewardPerSecond) internal {\\n\\t\\trewardPerSecond = _rewardPerSecond;\\n\\t\\temit RewardPerSecondUpdated(_rewardPerSecond);\\n\\t}\\n\\n\\tfunction _setToken(IERC20 _token) internal {\\n\\t\\ttoken = _token;\\n\\t\\temit TokenUpdated(_token);\\n\\t}\\n\\n\\tfunction _setRewarder(IRewarder _rewarder) internal {\\n\\t\\trewarder = _rewarder;\\n\\t\\temit RewarderUpdated(_rewarder);\\n\\t}\\n\\n\\tfunction _setMaxCoef(uint256 _maxCoef) internal {\\n\\t\\tMAXCOEF = _maxCoef;\\n\\t\\temit MaxCoefUpdated(_maxCoef);\\n\\t}\\n\\n\\tfunction _setAccPrecision(uint256 _precision) internal {\\n\\t\\tACC_PRECISION = _precision;\\n\\t\\temit PrecisionUpdated(_precision);\\n\\t}\\n\\n}\\n\",\"keccak256\":\"0x9b138395cefd4e1fb2c7fe53d4818a60eb2f3d550f08195eda9942581e93c385\",\"license\":\"GPL-2.0-or-later\"},\"contracts/stake/Stake.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-2.0-or-later\\n\\npragma solidity >=0.8.0;\\n\\nimport '@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol';\\nimport '../libraries/SignedSafeMath.sol';\\nimport '../interfaces/IStake.sol';\\nimport './CandidateRegistry.sol';\\nimport './Pools.sol';\\n\\n/// @dev Stake contract\\n/// @author Alexandas\\ncontract Stake is IStake, CandidateRegistry, Pools, ReentrancyGuardUpgradeable {\\n\\n\\tusing SignedSafeMath for int256;\\n\\n\\t/// @dev return `Election` contract\\n\\tIElection public override election;\\n\\n\\t/// @dev return `MajorCandidates` contract\\n\\tIMajorCandidates public override majorCandidates;\\n\\n\\t/// @dev return `Slasher` contract\\n\\tISlasher public override slasher;\\n\\n\\t/// @dev return minimum stake for registering a candidate\\n\\tuint256 public minStake;\\n\\n\\t/// @dev return stake frozen period\\n\\tuint256 public stakeFrozenPeriod;\\n\\n\\t/// @dev return stake frozen period\\n\\tuint256 public claimFrozenPeriod;\\n\\n\\t/// @dev return last stake timestamp for a candidate\\n\\tmapping(address => uint256) public lastStakeTimestamp;\\n\\n\\t/// @dev return last claim timestamp for a candidate\\n\\tmapping(address => uint256) public lastClaimTimestamp;\\n\\n\\t/// @dev return vote reward coefficient for a candidate\\n\\tmapping(address => uint256) internal voteRewardCoefs;\\n\\n\\tmodifier onlyElection() {\\n\\t\\trequire(msg.sender == address(election), 'Stake: caller must be Election contract');\\n\\t\\t_;\\n\\t}\\n\\n\\tmodifier onlyMajorCandidates() {\\n\\t\\trequire(msg.sender == address(majorCandidates), 'Stake: caller must be MajorCandidates contract');\\n\\t\\t_;\\n\\t}\\n\\n\\tmodifier onlySlasher() {\\n\\t\\trequire(msg.sender == address(slasher), 'Stake: caller must be Slasher contract');\\n\\t\\t_;\\n\\t}\\n\\n\\t/// @dev proxy initialize function\\n\\t/// @param token ERC20 token address\\n\\t/// @param rewarder `Rewarder` contract\\n\\t/// @param _election `Election` contract \\n\\t/// @param _majorCandidates `MajorCandidates` contract\\n\\t/// @param _slasher `Slasher` contract\\n\\t/// @param _stakeFrozenPeriod stake frozen period\\n\\t/// @param _minStake minimum stake for candidate\\n\\t/// @param rewardPerSecond reward generated per second\\n\\tfunction initialize(\\n\\t\\tIERC20 token,\\n\\t\\tIRewarder rewarder,\\n\\t\\tIElection _election,\\n\\t\\tIMajorCandidates _majorCandidates,\\n\\t\\tISlasher _slasher,\\n\\t\\tuint256 _stakeFrozenPeriod,\\n\\t\\tuint256 _minStake,\\n\\t\\tuint256 rewardPerSecond\\n\\t) external initializer {\\n\\t\\t_setToken(token);\\n\\t\\t_setRewarder(rewarder);\\n\\t\\t_setElection(_election);\\n\\t\\t_setMajorCandidates(_majorCandidates);\\n\\t\\t_setSlasher(_slasher);\\n\\t\\t_setStakeFrozenPeriod(_stakeFrozenPeriod);\\n\\t\\t_setClaimFrozenPeriod(28 * 24 * 3600);\\n\\t\\t_setMinStake(_minStake);\\n\\t\\t_setRewardPerSecond(rewardPerSecond);\\n\\t\\t_setMaxCoef(1e6);\\n\\t\\t_setAccPrecision(1e12);\\n\\t\\t_addPool(Types.Grade.Major, 750);\\n\\t\\t_addPool(Types.Grade.Secondary, 250);\\n\\t}\\n\\n\\t/// @dev candidate stake tokens\\n\\t/// @param amount token amount\\n\\tfunction stake(uint256 amount) external override {\\n\\t\\t_stake(msg.sender, msg.sender, amount);\\n\\t}\\n\\n\\t/// @dev register a candidate and stake tokens\\n\\t/// @param amount token amount\\n\\t/// @param manifest node manifest\\n\\tfunction registerAndStake(uint256 amount, string memory manifest) external override {\\n\\t\\t_register(msg.sender, manifest);\\n\\t\\t_stake(msg.sender, msg.sender, amount);\\n\\t}\\n\\n\\tfunction _stake(\\n\\t\\taddress user,\\n\\t\\taddress _candidate,\\n\\t\\tuint256 amount\\n\\t) internal {\\n\\t\\trequire(isCandidateRegistered(_candidate), 'Stake: candidate is not registered');\\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\tTypes.PoolInfo memory pool = updatePool(candidate.grade);\\n\\t\\trequire(amount + candidate.amount >= minStake, 'Stake: total amount is less than minimum stake');\\n\\t\\ttoken.transferFrom(user, address(this), amount);\\n\\t\\tcandidate.amount = candidate.amount + amount;\\n\\t\\tcandidate.rewardDebt = candidate.rewardDebt + int256(amount * pool.accPerShare / ACC_PRECISION);\\n\\t\\tlastStakeTimestamp[_candidate] = block.timestamp;\\n\\t\\temit Stake(user, _candidate, amount);\\n\\t}\\n\\n\\t/// @dev candidate quit from the protocol\\n\\t/// @param to token receiver\\n\\tfunction quit(address to) external override nonReentrant {\\n\\t\\trequire(isStakeUnfrozen(msg.sender), 'Stake: stake is frozen currently');\\n\\t\\trequire(!slasher.slashExists(msg.sender), 'Stake: slash exists');\\n\\t\\t_quit(msg.sender, to);\\n\\t}\\n\\n\\tfunction _quit(address _candidate, address to) internal {\\n\\t\\tTypes.CandidateInfo memory candidate = candidates[_candidate];\\n\\t\\t_withdrawAndClaim(_candidate, candidate.amount, to);\\n\\t\\tif (majorCandidates.exists(_candidate)) {\\n\\t\\t\\tmajorCandidates.remove(_candidate);\\n\\t\\t}\\n\\t\\tdelete candidates[_candidate];\\n\\t\\tdelete manifestMap[candidate.manifest];\\n\\t\\temit Quit(candidate.grade, _candidate);\\n\\t}\\n\\n\\t/// @dev candidate claim reward from the protocol\\n\\t/// @param to token receiver\\n\\tfunction claim(address to) external override nonReentrant {\\n\\t\\trequire(isClaimUnfrozen(msg.sender), 'Stake: reward is frozen currently');\\n\\t\\t_allocate(msg.sender);\\n\\t\\trewarder.mint(to, candidates[msg.sender].allocation);\\n\\t}\\n\\n\\tfunction isStakeUnfrozen(address candidate) public view returns(bool) {\\n\\t\\treturn block.timestamp > stakeFrozenPeriod + lastStakeTimestamp[candidate];\\n\\t}\\n\\n\\tfunction isClaimUnfrozen(address candidate) public view returns(bool) {\\n\\t\\treturn block.timestamp > claimFrozenPeriod + lastClaimTimestamp[candidate];\\n\\t}\\n\\n\\t/// @dev candidate withdraw the tokens and claim reward from the protocol\\n\\t/// @param amount token amount\\n\\t/// @param to token receiver\\n\\t// function withdrawAndClaim(uint256 amount, address to) external override nonReentrant {\\n\\t// \\trequire(isStakeUnfrozen(msg.sender), 'Stake: stake is frozen currently');\\n\\t// \\t_withdrawAndClaim(msg.sender, amount, to);\\n\\t// }\\n\\tfunction _withdrawAndClaim(address _candidate, uint256 amount, address to) internal {\\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\tTypes.PoolInfo memory pool = updatePool(candidate.grade);\\n\\t\\tint256 accumulated = int256(candidate.amount * pool.accPerShare / ACC_PRECISION);\\n\\t\\tuint256 _pending = (accumulated - candidate.rewardDebt).toUInt256();\\n\\t\\tcandidate.rewardDebt = accumulated - int256(amount * pool.accPerShare / ACC_PRECISION);\\n\\t\\tcandidate.amount = candidate.amount - amount;\\n\\t\\tuint256 currentAllocation = candidate.allocation;\\n\\t\\tuint256 pendingAllocation = _allocateReward(_candidate, _pending);\\n\\t\\tcandidate.allocation = 0;\\n\\t\\trewarder.mint(to, currentAllocation + pendingAllocation);\\n\\t\\ttoken.transfer(to, amount);\\n\\t\\temit Claimed(_candidate, to, currentAllocation + pendingAllocation);\\n\\t\\temit Withdrawn(_candidate, to, amount);\\n\\t}\\n\\n\\tfunction _setMinStake(uint256 amount) internal {\\n\\t\\tminStake = amount;\\n\\t\\temit MinStakeUpdated(amount);\\n\\t}\\n\\n\\tfunction _setStakeFrozenPeriod(uint256 period) internal {\\n\\t\\tstakeFrozenPeriod = period;\\n\\t\\temit StakeFrozenPeriodUpdated(period);\\n\\t}\\n\\n\\tfunction _setClaimFrozenPeriod(uint256 period) internal {\\n\\t\\tclaimFrozenPeriod = period;\\n\\t\\temit ClaimFrozenPeriodUpdated(period);\\n\\t}\\n\\n\\tfunction _setMajorCandidates(IMajorCandidates _majorCandidates) internal {\\n\\t\\tmajorCandidates = _majorCandidates;\\n\\t\\temit IMajorCandidatesUpdated(_majorCandidates);\\n\\t}\\n\\n\\t/// @dev upgrade a candidate\\n\\t/// @param candidate candidate address\\n\\tfunction upgrade(address candidate) external override onlyMajorCandidates {\\n\\t\\t_onCandidateGradeChanged(candidate, Types.Grade.Major);\\n\\t\\temit Upgrade(candidate, Types.Grade.Secondary, Types.Grade.Major);\\n\\t}\\n\\n\\t/// @dev downgrade a candidate\\n\\t/// @param candidate candidate address\\n\\tfunction downgrade(address candidate) external override onlyMajorCandidates {\\n\\t\\t_onCandidateGradeChanged(candidate, Types.Grade.Secondary);\\n\\t\\temit Downgrade(candidate, Types.Grade.Major, Types.Grade.Secondary);\\n\\t}\\n\\n\\t// make sure pool updated and reward allocated\\n\\tfunction _onCandidateGradeChanged(address _candidate, Types.Grade grade) internal {\\n\\t\\t_allocate(_candidate);\\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\tcandidate.grade = grade;\\n\\t\\tTypes.PoolInfo memory pool = updatePool(grade);\\n\\t\\tcandidate.rewardDebt = int256(candidate.amount * pool.accPerShare / ACC_PRECISION);\\n\\t}\\n\\n\\t/// @dev set allocate the reward to voters from the candidate\\n\\t/// @param candidate candidate address\\n\\tfunction voterAllocate(address candidate) external override onlyElection {\\n\\t\\t_allocate(candidate);\\n\\t}\\n\\n\\tfunction _allocate(address _candidate) internal {\\n\\t\\tif (isCandidateRegistered(_candidate)) {\\n\\t\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\t\\tTypes.PoolInfo memory pool = updatePool(candidate.grade);\\n\\t\\t\\tint256 accumulated = int256(candidate.amount * pool.accPerShare / ACC_PRECISION);\\n\\t\\t\\tuint256 _pending = (accumulated - candidate.rewardDebt).toUInt256();\\n\\t\\t\\tcandidate.rewardDebt = accumulated;\\n\\t\\t\\tuint256 allocation = _allocateReward(_candidate, _pending);\\n\\t\\t\\tif (allocation > 0) {\\n\\t\\t\\t\\tcandidate.allocation = candidate.allocation + allocation;\\n\\t\\t\\t\\temit CandidateAllocated(_candidate, allocation);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\tfunction _allocateReward(\\n\\t\\taddress _candidate,\\n\\t\\tuint256 _pending\\n\\t) internal returns(uint256 pendingAllocation) {\\n\\t\\tif (_pending > 0) {\\n\\t\\t\\tpendingAllocation = _pending;\\n\\t\\t\\tif (voteRewardCoef(_candidate) > 0 && election.voteSupply(_candidate) > 0) {\\n\\t\\t\\t\\tuint256 allocation = _pending * voteRewardCoef(_candidate) / MAXCOEF;\\n\\t\\t\\t\\telection.onAllocate(_candidate, allocation);\\n\\t\\t\\t\\tpendingAllocation = _pending - allocation;\\n\\t\\t\\t\\temit VoterAllocated(_candidate, allocation);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/// @dev set voter slash reward coefficient\\n\\t/// @param coef voter reward coefficient\\n\\tfunction setVoteRewardCoef(uint256 coef) external override {\\n\\t\\t_setVoteRewardCoef(msg.sender, coef);\\n\\t}\\n\\n\\tfunction _setVoteRewardCoef(address candidate, uint256 coef) internal {\\n\\t\\trequire(coef > 0 && coef <= MAXCOEF, 'Stake: invalid coef');\\n\\t\\trequire(isCandidateRegistered(candidate), 'Stake: candidate is not registered');\\n\\t\\t_allocate(candidate);\\n\\t\\tvoteRewardCoefs[candidate] = coef;\\n\\t\\temit VoteRewardCoefUpdated(coef);\\n\\t}\\n\\n\\tfunction _setElection(IElection _election) internal {\\n\\t\\telection = _election;\\n\\t\\temit ElectionUpdated(_election);\\n\\t}\\n\\n\\tfunction _pendingReward(address _candidate) internal view returns (uint256 pending) { \\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\tTypes.PoolInfo memory pool = pools[candidate.grade];\\n\\t\\tuint256 accPerShare = pool.accPerShare;\\n\\t\\tuint256 lpSupply = token.balanceOf(address(this));\\n\\t\\tif (block.timestamp > pool.lastRewardTime && lpSupply != 0) {\\n\\t\\t\\tuint256 time = block.timestamp - pool.lastRewardTime;\\n\\t\\t\\tuint256 reward = time * rewardPerSecond * pool.allocPoint / totalAllocPoint;\\n\\t\\t\\taccPerShare = accPerShare + (reward * ACC_PRECISION / lpSupply);\\n\\t\\t}\\n\\t\\tpending = int256(int256(candidate.amount * accPerShare / ACC_PRECISION) - candidate.rewardDebt).toUInt256();\\n\\t}\\n\\n\\t/// @dev return pending candidate allocation\\n\\t/// @param _candidate candidate address\\n\\t/// @return pendingAllocation pending candidate allocation\\n\\tfunction pendingCandidateAllocation(address _candidate) public view override returns (uint256 pendingAllocation) {\\n\\t\\tif (voteRewardCoef(_candidate) > 0 && election.voteSupply(_candidate) > 0) {\\n\\t\\t\\tuint256 pending = _pendingReward(_candidate);\\n\\t\\t\\tpendingAllocation = pending * (MAXCOEF - voteRewardCoef(_candidate)) / MAXCOEF;\\n\\t\\t}\\n\\t}\\n\\t\\n\\t/// @dev return pending voters allocation for a specific candidate\\n\\t/// @param _candidate candidate address\\n\\t/// @return pendingAllocation pending voters allocation\\n\\tfunction pendingVoterAllocation(address _candidate) public view override returns (uint256 pendingAllocation) {\\n\\t\\tif (voteRewardCoef(_candidate) > 0 && election.voteSupply(_candidate) > 0) {\\n\\t\\t\\tuint256 pending = _pendingReward(_candidate);\\n\\t\\t\\tpendingAllocation = pending * voteRewardCoef(_candidate) / MAXCOEF;\\n\\t\\t}\\n\\t}\\n\\n\\t/// @dev return pending reward for a specific candidate\\n\\t/// @param _candidate candidate address\\n\\t/// @return pending reward for the candidate\\n\\tfunction pendingReward(address _candidate) public view override returns (uint256 pending) {\\n\\t\\tpending = pendingCandidateAllocation(_candidate) + candidates[_candidate].allocation;\\n\\t}\\n\\n\\t/// @dev return voter reward coefficient for a specific candidate\\n\\t/// @param candidate candidate address\\n\\t/// @return coef voter reward coefficient\\n\\tfunction voteRewardCoef(address candidate) public view override returns (uint256) {\\n\\t\\treturn voteRewardCoefs[candidate];\\n\\t}\\n\\n\\tfunction _setSlasher(ISlasher _slasher) internal {\\n\\t\\tslasher = _slasher;\\n\\t\\temit SlasherUpdated(_slasher);\\n\\t}\\n\\n\\t/// @dev draft a slash for a candidate\\n\\t/// @param _candidate candidate address\\n\\t/// @param amount slash amount\\n\\t/// @return pendingSlash real slash amount\\n\\tfunction draftSlash(address _candidate, uint256 amount) external override onlySlasher returns(uint256 pendingSlash) {\\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\trequire(candidate.amount > 0, 'Stake: zero stake amount');\\n\\t\\tif (candidate.amount < amount) {\\n\\t\\t\\t_quit(_candidate, _candidate);\\n\\t\\t} else {\\n\\t\\t\\tpendingSlash = amount;\\n\\t\\t\\tTypes.PoolInfo memory pool = updatePool(candidate.grade);\\n\\t\\t\\tcandidate.rewardDebt = candidate.rewardDebt - int256(amount * pool.accPerShare / ACC_PRECISION);\\n\\t\\t\\tcandidate.amount = candidate.amount - amount;\\n\\n\\t\\t\\temit DraftSlash(_candidate, pendingSlash);\\n\\t\\t}\\n\\t}\\n\\n\\t/// @dev reject a slash for a candidate\\n\\t/// @param _candidate candidate address\\n\\t/// @param pendingSlash real slash amount\\n\\tfunction rejectSlash(address _candidate, uint256 pendingSlash) external override onlySlasher {\\n\\t\\tTypes.CandidateInfo storage candidate = candidates[_candidate];\\n\\t\\tTypes.PoolInfo memory pool = updatePool(candidate.grade);\\n\\t\\tcandidate.rewardDebt = candidate.rewardDebt + int256(pendingSlash * pool.accPerShare / ACC_PRECISION);\\n\\t\\tcandidate.amount = candidate.amount + pendingSlash;\\n\\n\\t\\temit RejectSlash(_candidate, pendingSlash);\\n\\t}\\n\\t\\n\\t/// @dev executed a slash for a candiate\\n\\t/// @param _candidate candidate address\\n\\t/// @param slash slash amount\\n\\t/// @param beneficiaries slash reward beneficiaries\\n\\t/// @param amounts slash reward amounts\\n\\t/// @param burned burned amount\\n\\tfunction executeSlash(\\n\\t\\taddress _candidate,\\n\\t\\tuint256 slash,\\n\\t\\taddress[] memory beneficiaries,\\n\\t\\tuint256[] memory amounts,\\n\\t\\tuint256 burned\\n\\t) external override onlySlasher {\\n\\t\\trequire(beneficiaries.length == amounts.length, 'Stake: invalid params');\\n\\t\\tfor(uint8 i = 0; i < beneficiaries.length; i++) {\\n\\t\\t\\ttoken.transfer(beneficiaries[i], amounts[i]);\\n\\t\\t}\\n\\t\\ttoken.burn(burned);\\n\\t\\temit ExcuteSlash(_candidate, slash, beneficiaries, amounts, burned);\\n\\t}\\n\\n\\tfunction majorCandidateManifests() external view returns(string[] memory manifests) {\\n\\t\\taddress[] memory candidates = majorCandidates.majorCandidateList();\\n\\t\\tmanifests = new string[](candidates.length);\\n\\t\\tfor (uint256 i = 0; i < candidates.length; i++) {\\n\\t\\t\\tTypes.CandidateInfo memory candidate = candidateInfo(candidates[i]);\\n\\t\\t\\tmanifests[i] = candidate.manifest;\\n\\t\\t}\\n\\t}\\n\\n}\\n\",\"keccak256\":\"0xf038ab4e079052724188cea035690efb8446e2caf0697ba6abc6fe21a1e66203\",\"license\":\"GPL-2.0-or-later\"}},\"version\":1}", "bytecode": 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"devdoc": { "author": "Alexandas", "details": "Stake contract", "kind": "dev", "methods": { "candidateInfo(address)": { "details": "return a candidate", "params": { "candidate": "candidate address" }, "returns": { "_0": "candidate information" } }, "claim(address)": { "details": "candidate claim reward from the protocol", "params": { "to": "token receiver" } }, "downgrade(address)": { "details": "downgrade a candidate", "params": { "candidate": "candidate address" } }, "draftSlash(address,uint256)": { "details": "draft a slash for a candidate", "params": { "_candidate": "candidate address", "amount": "slash amount" }, "returns": { "pendingSlash": "real slash amount" } }, "executeSlash(address,uint256,address[],uint256[],uint256)": { "details": "executed a slash for a candiate", "params": { "_candidate": "candidate address", "amounts": "slash reward amounts", "beneficiaries": "slash reward beneficiaries", "burned": "burned amount", "slash": "slash amount" } }, "gradeOf(address)": { "details": "return grade of a candidate", "params": { "candidate": "candidate address" }, "returns": { "_0": "candidate grade" } }, "initialize(address,address,address,address,address,uint256,uint256,uint256)": { "details": "proxy initialize function", "params": { "_election": "`Election` contract ", "_majorCandidates": "`MajorCandidates` contract", "_minStake": "minimum stake for candidate", "_slasher": "`Slasher` contract", "_stakeFrozenPeriod": "stake frozen period", "rewardPerSecond": "reward generated per second", "rewarder": "`Rewarder` contract", "token": "ERC20 token address" } }, "isCandidateRegistered(address)": { "details": "return whether a candidate is registered", "params": { "candidate": "candidate address" }, "returns": { "_0": "whether the candidate is registered" } }, "pendingCandidateAllocation(address)": { "details": "return pending candidate allocation", "params": { "_candidate": "candidate address" }, "returns": { "pendingAllocation": "pending candidate allocation" } }, "pendingReward(address)": { "details": "return pending reward for a specific candidate", "params": { "_candidate": "candidate address" }, "returns": { "pending": "reward for the candidate" } }, "pendingVoterAllocation(address)": { "details": "return pending voters allocation for a specific candidate", "params": { "_candidate": "candidate address" }, "returns": { "pendingAllocation": "pending voters allocation" } }, "poolInfo(uint8)": { "details": "return a specific pool", "params": { "grade": "pool grade" }, "returns": { "_0": "pool pool info" } }, "quit(address)": { "details": "candidate quit from the protocol", "params": { "to": "token receiver" } }, "register(string)": { "details": "register a candidate with node manifest", "params": { "manifest": "node manifest" } }, "registerAndStake(uint256,string)": { "details": "register a candidate and stake tokens", "params": { "amount": "token amount", "manifest": "node manifest" } }, "rejectSlash(address,uint256)": { "details": "reject a slash for a candidate", "params": { "_candidate": "candidate address", "pendingSlash": "real slash amount" } }, "setVoteRewardCoef(uint256)": { "details": "set voter slash reward coefficient", "params": { "coef": "voter reward coefficient" } }, "stake(uint256)": { "details": "candidate stake tokens", "params": { "amount": "token amount" } }, "updatePool(uint8)": { "details": "update a specific pool", "params": { "grade": "pool grade" }, "returns": { "pool": "pool info" } }, "upgrade(address)": { "details": "upgrade a candidate", "params": { "candidate": "candidate address" } }, "voteRewardCoef(address)": { "details": "return voter reward coefficient for a specific candidate", "params": { "candidate": "candidate address" }, "returns": { "_0": "coef voter reward coefficient" } }, "voterAllocate(address)": { "details": "set allocate the reward to voters from the candidate", "params": { "candidate": "candidate address" } } }, "stateVariables": { "claimFrozenPeriod": { "details": "return stake frozen period" }, "election": { "details": "return `Election` contract" }, "lastClaimTimestamp": { "details": "return last claim timestamp for a candidate" }, "lastStakeTimestamp": { "details": "return last stake timestamp for a candidate" }, "majorCandidates": { "details": "return `MajorCandidates` contract" }, "minStake": { "details": "return minimum stake for registering a candidate" }, "slasher": { "details": "return `Slasher` contract" }, "stakeFrozenPeriod": { "details": "return stake frozen period" }, "voteRewardCoefs": { "details": "return vote reward coefficient for a candidate" } }, "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 }, "storageLayout": { "storage": [ { "astId": 8281, "contract": "contracts/stake/Stake.sol:Stake", "label": "candidates", "offset": 0, "slot": "0", "type": "t_mapping(t_address,t_struct(CandidateInfo)6914_storage)" }, { "astId": 8287, "contract": "contracts/stake/Stake.sol:Stake", "label": "manifestMap", "offset": 0, "slot": "1", "type": "t_mapping(t_string_memory_ptr,t_address)" }, { "astId": 8422, "contract": "contracts/stake/Stake.sol:Stake", "label": "token", "offset": 0, "slot": "2", "type": "t_contract(IERC20)5771" }, { "astId": 8427, "contract": "contracts/stake/Stake.sol:Stake", "label": "rewarder", "offset": 0, "slot": "3", "type": "t_contract(IRewarder)6195" }, { "astId": 8431, "contract": "contracts/stake/Stake.sol:Stake", "label": "ACC_PRECISION", "offset": 0, "slot": "4", "type": "t_uint256" }, { "astId": 8435, "contract": "contracts/stake/Stake.sol:Stake", "label": "MAXCOEF", "offset": 0, "slot": "5", "type": "t_uint256" }, { "astId": 8439, "contract": "contracts/stake/Stake.sol:Stake", "label": "totalAllocPoint", "offset": 0, "slot": "6", "type": "t_uint256" }, { "astId": 8443, "contract": "contracts/stake/Stake.sol:Stake", "label": "rewardPerSecond", "offset": 0, "slot": "7", "type": "t_uint256" }, { "astId": 8449, "contract": "contracts/stake/Stake.sol:Stake", "label": "pools", "offset": 0, "slot": "8", "type": "t_mapping(t_enum(Grade)6902,t_struct(PoolInfo)6921_storage)" }, { "astId": 138, "contract": "contracts/stake/Stake.sol:Stake", "label": "_initialized", "offset": 0, "slot": "9", "type": "t_uint8" }, { "astId": 141, "contract": "contracts/stake/Stake.sol:Stake", "label": "_initializing", "offset": 1, "slot": "9", "type": "t_bool" }, { "astId": 423, "contract": "contracts/stake/Stake.sol:Stake", "label": "_status", "offset": 0, "slot": "10", "type": "t_uint256" }, { "astId": 467, "contract": "contracts/stake/Stake.sol:Stake", "label": "__gap", "offset": 0, "slot": "11", "type": "t_array(t_uint256)49_storage" }, { "astId": 8840, "contract": "contracts/stake/Stake.sol:Stake", "label": "election", "offset": 0, "slot": "60", "type": "t_contract(IElection)5954" }, { "astId": 8845, "contract": "contracts/stake/Stake.sol:Stake", "label": "majorCandidates", "offset": 0, "slot": "61", "type": "t_contract(IMajorCandidates)6050" }, { "astId": 8850, "contract": "contracts/stake/Stake.sol:Stake", "label": "slasher", "offset": 0, "slot": "62", "type": "t_contract(ISlasher)6410" }, { "astId": 8853, "contract": "contracts/stake/Stake.sol:Stake", "label": "minStake", "offset": 0, "slot": "63", "type": "t_uint256" }, { "astId": 8856, "contract": "contracts/stake/Stake.sol:Stake", "label": "stakeFrozenPeriod", "offset": 0, "slot": "64", "type": "t_uint256" }, { "astId": 8859, "contract": "contracts/stake/Stake.sol:Stake", "label": "claimFrozenPeriod", "offset": 0, "slot": "65", "type": "t_uint256" }, { "astId": 8864, "contract": "contracts/stake/Stake.sol:Stake", "label": "lastStakeTimestamp", "offset": 0, "slot": "66", "type": "t_mapping(t_address,t_uint256)" }, { "astId": 8869, "contract": "contracts/stake/Stake.sol:Stake", "label": "lastClaimTimestamp", "offset": 0, "slot": "67", "type": "t_mapping(t_address,t_uint256)" }, { "astId": 8874, "contract": "contracts/stake/Stake.sol:Stake", "label": "voteRewardCoefs", "offset": 0, "slot": "68", "type": "t_mapping(t_address,t_uint256)" } ], "types": { "t_address": { "encoding": "inplace", "label": "address", "numberOfBytes": "20" }, "t_array(t_uint256)49_storage": { "base": "t_uint256", "encoding": "inplace", "label": "uint256[49]", "numberOfBytes": "1568" }, "t_bool": { "encoding": "inplace", "label": "bool", "numberOfBytes": "1" }, "t_contract(IERC20)5771": { "encoding": "inplace", "label": "contract IERC20", "numberOfBytes": "20" }, "t_contract(IElection)5954": { "encoding": "inplace", "label": "contract IElection", "numberOfBytes": "20" }, "t_contract(IMajorCandidates)6050": { "encoding": "inplace", "label": "contract IMajorCandidates", "numberOfBytes": "20" }, "t_contract(IRewarder)6195": { "encoding": "inplace", "label": "contract IRewarder", "numberOfBytes": "20" }, "t_contract(ISlasher)6410": { "encoding": "inplace", "label": "contract ISlasher", "numberOfBytes": "20" }, "t_enum(Grade)6902": { "encoding": "inplace", "label": "enum Types.Grade", "numberOfBytes": "1" }, "t_int256": { "encoding": "inplace", "label": "int256", "numberOfBytes": "32" }, "t_mapping(t_address,t_struct(CandidateInfo)6914_storage)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => struct Types.CandidateInfo)", "numberOfBytes": "32", "value": "t_struct(CandidateInfo)6914_storage" }, "t_mapping(t_address,t_uint256)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => uint256)", "numberOfBytes": "32", "value": "t_uint256" }, "t_mapping(t_enum(Grade)6902,t_struct(PoolInfo)6921_storage)": { "encoding": "mapping", "key": "t_enum(Grade)6902", "label": "mapping(enum Types.Grade => struct Types.PoolInfo)", "numberOfBytes": "32", "value": "t_struct(PoolInfo)6921_storage" }, "t_mapping(t_string_memory_ptr,t_address)": { "encoding": "mapping", "key": "t_string_memory_ptr", "label": "mapping(string => address)", "numberOfBytes": "32", "value": "t_address" }, "t_string_memory_ptr": { "encoding": "bytes", "label": "string", "numberOfBytes": "32" }, "t_string_storage": { "encoding": "bytes", "label": "string", "numberOfBytes": "32" }, "t_struct(CandidateInfo)6914_storage": { "encoding": "inplace", "label": "struct Types.CandidateInfo", "members": [ { "astId": 6905, "contract": "contracts/stake/Stake.sol:Stake", "label": "grade", "offset": 0, "slot": "0", "type": "t_enum(Grade)6902" }, { "astId": 6907, "contract": "contracts/stake/Stake.sol:Stake", "label": "amount", "offset": 0, "slot": "1", "type": "t_uint256" }, { "astId": 6909, "contract": "contracts/stake/Stake.sol:Stake", "label": "rewardDebt", "offset": 0, "slot": "2", "type": "t_int256" }, { "astId": 6911, "contract": "contracts/stake/Stake.sol:Stake", "label": "allocation", "offset": 0, "slot": "3", "type": "t_uint256" }, { "astId": 6913, "contract": "contracts/stake/Stake.sol:Stake", "label": "manifest", "offset": 0, "slot": "4", "type": "t_string_storage" } ], "numberOfBytes": "160" }, "t_struct(PoolInfo)6921_storage": { "encoding": "inplace", "label": "struct Types.PoolInfo", "members": [ { "astId": 6916, "contract": "contracts/stake/Stake.sol:Stake", "label": "accPerShare", "offset": 0, "slot": "0", "type": "t_uint256" }, { "astId": 6918, "contract": "contracts/stake/Stake.sol:Stake", "label": "lastRewardTime", "offset": 0, "slot": "1", "type": "t_uint256" }, { "astId": 6920, "contract": "contracts/stake/Stake.sol:Stake", "label": "allocPoint", "offset": 0, "slot": "2", "type": "t_uint256" } ], "numberOfBytes": "96" }, "t_uint256": { "encoding": "inplace", "label": "uint256", "numberOfBytes": "32" }, "t_uint8": { "encoding": "inplace", "label": "uint8", "numberOfBytes": "1" } } } }