EloXVesting

{{
  "language": "Solidity",
  "sources": {
    "src/EloXVesting.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IEloXPresale} from "./interfaces/IEloXPresale.sol";
import {Types} from "./shared/Types.sol";
import {Errors} from "./shared/Errors.sol";

contract EloXVesting is Ownable, ReentrancyGuard {
    using Errors for *;

    struct VestingSchedule {
        uint256 totalAmount;
        uint256 claimedAmount;
    }

    struct OffChainSchedule {
        uint256 investmentAmount;
        uint256 cliffEnd;
        uint256 vestingEnd;
    }

    IERC20 public token;
    IEloXPresale public presale;

    mapping(address => mapping(Types.Status => VestingSchedule)) public vestingSchedules;
    mapping(address => OffChainSchedule[]) public offChainVesting;

    event TokensClaimed(address indexed user, uint256 amount);
    event VestingCreated(
        address indexed user, uint256 totalAmount, uint256 cliff, uint256 vestingEnd, Types.Status status
    );

    constructor(address _token, address _presale) Ownable(msg.sender) {
        token = IERC20(_token);
        presale = IEloXPresale(_presale);
    }

    //handle offchain vesting
    function handlePurchase(address user, uint256 amount, Types.PurchaseParams memory params) external {
        if (msg.sender != address(presale)) revert Errors.InvalidCaller();
        if (amount == 0) revert Errors.ZeroAmount();

        Types.Status phase = params.status;
        uint256 cliffEnd = params.cliffEnd;
        uint256 vestingEnd = params.vestingEnd;

        VestingSchedule storage schedule = vestingSchedules[user][phase];
        schedule.totalAmount += amount;

        if (phase == Types.Status.OffChain) {
            offChainVesting[user]
            .push(OffChainSchedule({investmentAmount: amount, cliffEnd: cliffEnd, vestingEnd: vestingEnd}));
        }

        emit VestingCreated(user, amount, cliffEnd, vestingEnd, phase);
    }

    function claim() external nonReentrant {
        (uint256 totalClaimable,, uint256[] memory phaseClaimables) = getClaimableAmounts(msg.sender);
        (uint256 offChainClaimable) = getClaimableAmountsOffChain(msg.sender);
        uint256 claimableTotal = totalClaimable + offChainClaimable;
        if (claimableTotal == 0) revert Errors.ZeroAmount();

        uint8 start = uint8(Types.Status.Secret);
        uint8 end = uint8(Types.Status.Public);

        for (uint8 i = start; i <= end; i++) {
            uint8 idx = i - start; // 0, 1, 2
            VestingSchedule storage schedule = vestingSchedules[msg.sender][Types.Status(i)];
            schedule.claimedAmount += phaseClaimables[idx];
        }

        if (offChainClaimable > 0) {
            VestingSchedule storage schedule = vestingSchedules[msg.sender][Types.Status.OffChain];
            schedule.claimedAmount += offChainClaimable;
        }

        bool success = token.transfer(msg.sender, claimableTotal);
        if (!success) revert Errors.TransferFailed();
        emit TokensClaimed(msg.sender, claimableTotal);
    }

    function getClaimableAmounts(address user)
        public
        view
        returns (uint256 totalClaimable, Types.Status[] memory phases, uint256[] memory phaseClaimables)
    {
        uint8 start = uint8(Types.Status.Secret);
        uint8 end = uint8(Types.Status.Public);

        uint8 totalPhases = end - start + 1; // 3 phases: 1,2,3

        phases = new Types.Status[](totalPhases);
        phaseClaimables = new uint256[](totalPhases);

        for (uint8 i = start; i <= end; i++) {
            uint8 idx = i - start; // 0, 1, 2
            Types.Status status = Types.Status(i);
            phases[idx] = status; // correct indexing

            VestingSchedule memory schedule = vestingSchedules[user][status];
            if (schedule.totalAmount == 0) continue;

            (uint256 cliffEnd, uint256 vestingEnd) = presale.vestingDetails(status);
            if (block.timestamp < cliffEnd) continue;
            if (block.timestamp > vestingEnd) {
                phaseClaimables[idx] = schedule.totalAmount - schedule.claimedAmount;
                totalClaimable += schedule.totalAmount - schedule.claimedAmount;
                continue;
            }

            uint256 totalVestingDays = (vestingEnd - cliffEnd) / 1 days;
            uint256 timeSinceCliffEnd = block.timestamp - cliffEnd;
            uint256 daysElapsed = (timeSinceCliffEnd / 1 days) + 1;

            if (totalVestingDays == 0) continue;
            if (daysElapsed > totalVestingDays) {
                daysElapsed = totalVestingDays;
            }
            uint256 unlockedAmount = (schedule.totalAmount * daysElapsed) / totalVestingDays;

            if (unlockedAmount > schedule.claimedAmount) {
                uint256 claimable = unlockedAmount - schedule.claimedAmount;
                phaseClaimables[idx] = claimable;
                totalClaimable += claimable;
            }
        }
    }

    //offchain buyers vesting is not stored in presale contract
    function getClaimableAmountsOffChain(address user) public view returns (uint256 offChainClaimable) {
        VestingSchedule memory schedule = vestingSchedules[user][Types.Status.OffChain];
        if (schedule.totalAmount == 0) return offChainClaimable;

        uint256 offChainDeposits = offChainVesting[user].length;
        for (uint256 j = 0; j < offChainDeposits; j++) {
            OffChainSchedule memory vestingSchedule = offChainVesting[user][j];
            uint256 cliffEnd = vestingSchedule.cliffEnd;
            uint256 vestingEnd = vestingSchedule.vestingEnd;

            if (block.timestamp < cliffEnd) continue;
            if (block.timestamp > vestingEnd) {
                offChainClaimable = schedule.totalAmount - schedule.claimedAmount;
                continue;
            }

            uint256 totalVestingDays = (vestingEnd - cliffEnd) / 1 days;
            uint256 timeSinceCliffEnd = block.timestamp - cliffEnd;
            uint256 daysElapsed = (timeSinceCliffEnd / 1 days) + 1;

            if (totalVestingDays == 0) continue;
            if (daysElapsed > totalVestingDays) {
                daysElapsed = totalVestingDays;
            }
            uint256 unlockedAmount = (schedule.totalAmount * daysElapsed) / totalVestingDays;

            if (unlockedAmount > schedule.claimedAmount) {
                uint256 claimable = unlockedAmount - schedule.claimedAmount;
                offChainClaimable = claimable;
            }
        }
    }

    function getOffChainVestings(address user) external view returns (OffChainSchedule[] memory) {
        return offChainVesting[user];
    }

    function setPresaleContract(address _presale) external onlyOwner {
        presale = IEloXPresale(_presale);
    }

    function withdrawEther(uint256 _amount) external onlyOwner {
        (bool success,) = msg.sender.call{value: _amount}("");
        if (!success) revert Errors.TransferFailed();
    }

    function withdrawToken(address _tokenAddress, uint256 _amount) external onlyOwner {
        bool success = IERC20(_tokenAddress).transfer(msg.sender, _amount);
        if (!success) revert Errors.TransferFailed();
    }
}
"
    },
    "node_modules/@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "node_modules/@openzeppelin/contracts/utils/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}
"
    },
    "node_modules/@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "src/interfaces/IEloXPresale.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;
import {Types} from "../shared/Types.sol";

interface IEloXPresale {
    function eloxInvestment(address user) external view returns (uint256);

    function vestingDetails(Types.Status _status) external view returns (uint256 cliffEnd, uint256 vestingEnd);

    function getVestingDetails(Types.Status phase) external view returns (Types.PurchaseParams memory);

    function phaseDetails(Types.Status phase)
        external
        view
        returns (uint256 price, uint256 tokensAllocated, uint256 tokensSold);

    function getStatus() external view returns (Types.Status);
}
"
    },
    "src/shared/Types.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;

library Types {
    enum Status {
        Closed,
        Secret,
        Private,
        Public,
        OffChain
    }

    struct PurchaseParams {
        Status status;
        uint256 cliffEnd;
        uint256 vestingEnd;
    }
}
"
    },
    "src/shared/Errors.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;

library Errors {
    error PresaleClosed();
    error ZeroAmount();
    error AllocationExceeded();
    error InsufficientBalance();
    error TransferFailed();
    error InvalidCaller();
    error UserBlacklisted();
}
"
    },
    "node_modules/@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    }
  },
  "settings": {
    "remappings": [
      "@openzeppelin/=node_modules/@openzeppelin/",
      "@chainlink/=node_modules/@chainlink/",
      "forge-std/=lib/forge-std/src/"
    ],
    "optimizer": {
      "enabled": true,
      "runs": 200,
      "details": {}
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "prague",
    "viaIR": true
  }
}}