// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;

import {Parameters} from "@proprietary/Parameters.sol";
import {IGovernance} from "@interfaces/IGovernance.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import {Test} from "@forge-std/Test.sol";

contract MockProposal is Parameters, Test {
    IGovernance internal governance = IGovernance(_governanceAddress);

    uint256 public constant TEST_PRIVATE_KEY_ONE = 0x66ddbd7cbe4a566df405f6ded0b908c669f88cdb1656380c050e3a457bd21df0;
    uint256 public constant TEST_PRIVATE_KEY_TWO = 0xa4c8c98120e77741a87a116074a2df4ddb20d1149069290fd4a3d7ee65c55064;
    address public constant TEST_ADDRESS_ONE = 0x118251976c65AFAf291f5255450ddb5b6A4d8B88;
    address public constant TEST_ADDRESS_TWO = 0x63aE7d90Eb37ca39FC62dD9991DbEfeE70673a20;

    uint256 public constant PROPOSAL_VOTING_DURATION = 5 days;
    uint256 public constant PROPOSAL_LOCKED_DURATION = 2 days;
    uint256 public constant PROPOSAL_DURATION = PROPOSAL_VOTING_DURATION + PROPOSAL_LOCKED_DURATION;
    uint256 public constant PROPOSAL_EXECUTION_MAX_DURATION = 3 days;
    uint256 public constant PROPOSAL_THRESHOLD = 25000 ether;
    string public constant PROPOSAL_DESCRIPTION = "{title:'Some proposal',description:''}";

    address public constant VERIFIER_ADDRESS = 0x77777FeDdddFfC19Ff86DB637967013e6C6A116C;

    bytes32 public constant PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    bytes32 public constant EIP712_DOMAIN = keccak256(
        abi.encode(
            keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
            keccak256(bytes("TornadoCash")),
            keccak256(bytes("1")),
            1,
            VERIFIER_ADDRESS
        )
    );

    uint16 public constant PERMIT_FUNC_SELECTOR = uint16(0x1901);

    function executeProposal(address proposalAddress) public {
        uint256 proposalId = voteAndCreateProposal(proposalAddress);

        governance.execute(proposalId);
    }

    function waitUntilExecutable() internal {
        vm.warp(block.timestamp + PROPOSAL_DURATION);
    }

    function voteAndCreateProposal(address proposalAddress) public returns (uint256) {
        retrieveAndLockBalance(TEST_PRIVATE_KEY_ONE, TEST_ADDRESS_ONE, PROPOSAL_THRESHOLD);
        retrieveAndLockBalance(TEST_PRIVATE_KEY_TWO, TEST_ADDRESS_TWO, 1 ether);

        /* ----------PROPOSER------------ */
        vm.startPrank(TEST_ADDRESS_ONE);

        uint256 proposalId = IGovernance(_governanceAddress).propose(proposalAddress, PROPOSAL_DESCRIPTION);

        // TIME-TRAVEL
        vm.warp(block.timestamp + 6 hours);

        IGovernance(_governanceAddress).castVote(proposalId, true);

        vm.stopPrank();
        /* ------------------------------ */

        /* -------------VOTER-------------*/
        vm.startPrank(TEST_ADDRESS_TWO);
        IGovernance(_governanceAddress).castVote(proposalId, true);
        vm.stopPrank();
        /* ------------------------------ */

        return proposalId;
    }

    function retrieveAndLockBalance(uint256 privateKey, address voter, uint256 amount) internal {
        uint256 lockTimestamp = block.timestamp + PROPOSAL_DURATION;

        bytes32 messageHash = keccak256(
            abi.encodePacked(
                PERMIT_FUNC_SELECTOR,
                EIP712_DOMAIN,
                keccak256(abi.encode(PERMIT_TYPEHASH, voter, _governanceAddress, amount, 0, lockTimestamp))
            )
        );

        /* ----------GOVERNANCE------- */
        vm.startPrank(_governanceAddress);
        IERC20(_tokenAddress).transfer(voter, amount);
        vm.stopPrank();
        /* ----------------------------*/

        (uint8 v, bytes32 r, bytes32 s) = vm.sign(privateKey, messageHash);

        /* ----------VOTER------------ */
        vm.startPrank(voter);
        IGovernance(_governanceAddress).lock(voter, amount, lockTimestamp, v, r, s);
        vm.stopPrank();
        /* ----------------------------*/
    }
}