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/*
 * Capital DEX
 *
 * Copyright ©️ 2020 Curio AG (Company Number FL-0002.594.728-9)
 * Incorporated and registered in Liechtenstein.
 *
 * Copyright ©️ 2020 Curio Capital AG (Company Number CHE-211.446.654)
 * Incorporated and registered in Zug, Switzerland.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.6.12;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/**
 * @title Reservoir
 *
 * @dev The contract is used to keep tokens with the function
 * of transfer them to another target address (it is assumed that
 * it will be a contract address).
 */
contract Reservoir {
    IERC20 public token;
    address public target;

    /**
     * @dev A constructor sets the address of token and
     * the address of the target contract.
     */
    constructor(IERC20 _token, address _target) public {
        token = _token;
        target = _target;
    }

    /**
     * @dev Transfers a certain amount of tokens to the target address.
     *
     * Requirements:
     * - msg.sender should be the target address.
     *
     * @param requestedTokens The amount of tokens to transfer.
     */
    function drip(uint256 requestedTokens)
        external
        returns (uint256 sentTokens)
    {
        address target_ = target;
        IERC20 token_ = token;
        require(msg.sender == target_, "Reservoir: permission denied");

        uint256 reservoirBalance = token_.balanceOf(address(this));
        sentTokens = (requestedTokens > reservoirBalance)
            ? reservoirBalance
            : requestedTokens;

        token_.transfer(target_, sentTokens);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @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);
}

{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

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[{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"address","name":"_target","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"requestedTokens","type":"uint256"}],"name":"drip","outputs":[{"internalType":"uint256","name":"sentTokens","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"target","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000f56b164efd3cfc02ba739b719b6526a6fa1ca32a000000000000000000000000e8cc9f640c55f3c5905fd2bbb63c53fb8a3a527d

-----Decoded View---------------
Arg [0] : _token (address): 0xF56b164efd3CFc02BA739b719B6526A6FA1cA32a
Arg [1] : _target (address): 0xe8Cc9f640C55f3c5905FD2BBb63C53fb8A3A527d

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000f56b164efd3cfc02ba739b719b6526a6fa1ca32a
Arg [1] : 000000000000000000000000e8cc9f640c55f3c5905fd2bbb63c53fb8a3a527d