// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

// interfaces

// libraries
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

// contracts

library SpaceDelegationStorage {
    // keccak256(abi.encode(uint256(keccak256("facets.registry.space.delegation.storage")) - 1)) &
    // ~bytes32(uint256(0xff))
    bytes32 internal constant STORAGE_SLOT =
        0x3355c1fbe959688d71c13b5c967b2a46ceae34fb425fbcad0cb6451b53f36e00;

    struct Layout {
        // References
        uint256 stakeRequirement; // deprecated
        address spaceOwnerRegistry; // deprecated
        address riverToken; // deprecated
        address mainnetDelegation; // deprecated
        // Delegation Mappings
        mapping(address operator => EnumerableSet.AddressSet) spacesByOperator;
        mapping(address space => address operator) operatorBySpace;
        mapping(address space => uint256) spaceDelegationTime;
        address spaceFactory;
    }

    function layout() internal pure returns (Layout storage s) {
        assembly {
            s.slot := STORAGE_SLOT
        }
    }
}