export enum AbiType {
    Function = 'function',
    Constructor = 'constructor',
    Event = 'event',
    Fallback = 'fallback',
}

export enum StateMutabilityType {
    Pure = 'pure',
    View = 'view',
    NonPayable = 'nonpayable',
    Payable = 'payable',
}

export const ERC_20_ABI = [
    {
        constant: true,
        inputs: [],
        name: 'name',
        outputs: [
            {
                name: '',
                type: 'string',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        constant: false,
        inputs: [
            {
                name: '_spender',
                type: 'address',
            },
            {
                name: '_value',
                type: 'uint256',
            },
        ],
        name: 'approve',
        outputs: [
            {
                name: '',
                type: 'bool',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.NonPayable,
        type: AbiType.Function,
    },
    {
        constant: true,
        inputs: [],
        name: 'totalSupply',
        outputs: [
            {
                name: '',
                type: 'uint256',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        constant: false,
        inputs: [
            {
                name: '_from',
                type: 'address',
            },
            {
                name: '_to',
                type: 'address',
            },
            {
                name: '_value',
                type: 'uint256',
            },
        ],
        name: 'transferFrom',
        outputs: [
            {
                name: '',
                type: 'bool',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.NonPayable,
        type: AbiType.Function,
    },
    {
        constant: true,
        inputs: [],
        name: 'decimals',
        outputs: [
            {
                name: '',
                type: 'uint8',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        constant: true,
        inputs: [
            {
                name: '_owner',
                type: 'address',
            },
        ],
        name: 'balanceOf',
        outputs: [
            {
                name: 'balance',
                type: 'uint256',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        constant: true,
        inputs: [],
        name: 'symbol',
        outputs: [
            {
                name: '',
                type: 'string',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        constant: false,
        inputs: [
            {
                name: '_to',
                type: 'address',
            },
            {
                name: '_value',
                type: 'uint256',
            },
        ],
        name: 'transfer',
        outputs: [
            {
                name: '',
                type: 'bool',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.NonPayable,
        type: AbiType.Function,
    },
    {
        constant: true,
        inputs: [
            {
                name: '_owner',
                type: 'address',
            },
            {
                name: '_spender',
                type: 'address',
            },
        ],
        name: 'allowance',
        outputs: [
            {
                name: '',
                type: 'uint256',
            },
        ],
        payable: false,
        stateMutability: StateMutabilityType.View,
        type: AbiType.Function,
    },
    {
        payable: true,
        stateMutability: StateMutabilityType.Payable,
        type: AbiType.Fallback,
    },
    {
        anonymous: false,
        inputs: [
            {
                indexed: true,
                name: 'owner',
                type: 'address',
            },
            {
                indexed: true,
                name: 'spender',
                type: 'address',
            },
            {
                indexed: false,
                name: 'value',
                type: 'uint256',
            },
        ],
        name: 'Approval',
        type: AbiType.Event,
    },
    {
        anonymous: false,
        inputs: [
            {
                indexed: true,
                name: 'from',
                type: 'address',
            },
            {
                indexed: true,
                name: 'to',
                type: 'address',
            },
            {
                indexed: false,
                name: 'value',
                type: 'uint256',
            },
        ],
        name: 'Transfer',
        type: AbiType.Event,
    },
]