// SPDX-License-Identifier: GPL-3.0-only

pragma solidity ^0.5.4; //FIX: modified pragma, why was it 0.5.4?

import "./Storage.sol";
import "../../infrastructure/storage/IGuardianStorage.sol";

/**
 * @title GuardianStorage
 * @notice Contract storing the state of wallets related to guardians and lock.
 * The contract only defines basic setters and getters with no logic. Only modules authorised
 * for a wallet can modify its state.
 */
contract GuardianStorage is IGuardianStorage, Storage {

    struct GuardianStorageConfig {
        // the list of guardians
        address[] guardians;
        // the info about guardians
        mapping (address => GuardianInfo) info;
        // the lock's release timestamp
        uint256 lock;
        // the module that set the last lock
        address locker;
    }

    struct GuardianInfo {
        bool exists;
        uint128 index;
    }

    // wallet specific storage
    mapping (address => GuardianStorageConfig) internal configs;

    // *************** External Functions ********************* //

    /**
     * @notice Lets an authorised module add a guardian to a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The guardian to add.
     */
    function addGuardian(address _wallet, address _guardian) external onlyModule(_wallet) {
        GuardianStorageConfig storage config = configs[_wallet];
        config.info[_guardian].exists = true;
        config.info[_guardian].index = uint128(config.guardians.push(_guardian) - 1);
    }

    /**
     * @notice Lets an authorised module revoke a guardian from a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The guardian to revoke.
     */
    function revokeGuardian(address _wallet, address _guardian) external onlyModule(_wallet) {
        GuardianStorageConfig storage config = configs[_wallet];
        address lastGuardian = config.guardians[config.guardians.length - 1];
        if (_guardian != lastGuardian) {
            uint128 targetIndex = config.info[_guardian].index;
            config.guardians[targetIndex] = lastGuardian;
            config.info[lastGuardian].index = targetIndex;
        }
        config.guardians.length--;
        delete config.info[_guardian];
    }

    /**
     * @notice Returns the number of guardians for a wallet.
     * @param _wallet The target wallet.
     * @return the number of guardians.
     */
    function guardianCount(address _wallet) external view returns (uint256) {
        return configs[_wallet].guardians.length;
    }

    /**
     * @notice Gets the list of guaridans for a wallet.
     * @param _wallet The target wallet.
     * @return the list of guardians.
     */
    function getGuardians(address _wallet) external view returns (address[] memory) {
        GuardianStorageConfig storage config = configs[_wallet];
        address[] memory guardians = new address[](config.guardians.length);
        for (uint256 i = 0; i < config.guardians.length; i++) {
            guardians[i] = config.guardians[i];
        }
        return guardians;
    }

    /**
     * @notice Checks if an account is a guardian for a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The account.
     * @return true if the account is a guardian for a wallet.
     */
    function isGuardian(address _wallet, address _guardian) external view returns (bool) {
        return configs[_wallet].info[_guardian].exists;
    }

    /**
     * @notice Lets an authorised module set the lock for a wallet.
     * @param _wallet The target wallet.
     * @param _releaseAfter The epoch time at which the lock should automatically release.
     */
    function setLock(address _wallet, uint256 _releaseAfter) external onlyModule(_wallet) {
        configs[_wallet].lock = _releaseAfter;
        if (_releaseAfter != 0 && msg.sender != configs[_wallet].locker) {
            configs[_wallet].locker = msg.sender;
        }
    }

    /**
     * @notice Checks if the lock is set for a wallet.
     * @param _wallet The target wallet.
     * @return true if the lock is set for the wallet.
     */
    function isLocked(address _wallet) external view returns (bool) {
        return configs[_wallet].lock > block.timestamp;
    }

    /**
     * @notice Gets the time at which the lock of a wallet will release.
     * @param _wallet The target wallet.
     * @return the time at which the lock of a wallet will release, or zero if there is no lock set.
     */
    function getLock(address _wallet) external view returns (uint256) {
        return configs[_wallet].lock;
    }

    /**
     * @notice Gets the address of the last module that modified the lock for a wallet.
     * @param _wallet The target wallet.
     * @return the address of the last module that modified the lock for a wallet.
     */
    function getLocker(address _wallet) external view returns (address) {
        return configs[_wallet].locker;
    }
}

// Copyright (C) 2018  Argent Labs Ltd. <https://argent.xyz>

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity >=0.5.4 <0.9.0;

interface IGuardianStorage {

    /**
     * @notice Lets an authorised module add a guardian to a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The guardian to add.
     */
    function addGuardian(address _wallet, address _guardian) external;

    /**
     * @notice Lets an authorised module revoke a guardian from a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The guardian to revoke.
     */
    function revokeGuardian(address _wallet, address _guardian) external;

    /**
     * @notice Checks if an account is a guardian for a wallet.
     * @param _wallet The target wallet.
     * @param _guardian The account.
     * @return true if the account is a guardian for a wallet.
     */
    function isGuardian(address _wallet, address _guardian) external view returns (bool);

    function isLocked(address _wallet) external view returns (bool);

    function getLock(address _wallet) external view returns (uint256);

    function getLocker(address _wallet) external view returns (address);

    function setLock(address _wallet, uint256 _releaseAfter) external;

    function getGuardians(address _wallet) external view returns (address[] memory);

    function guardianCount(address _wallet) external view returns (uint256);
}

// SPDX-License-Identifier: GPL-3.0-only
 
pragma solidity ^0.5.4;

import "../../../wallet/IWallet.sol";

/**
 * @title Storage
 * @notice Base contract for the storage of a wallet.
 * @author Julien Niset - <[email protected]>
 */
contract Storage {

    /**
     * @notice Throws if the caller is not an authorised module.
     */
    modifier onlyModule(address _wallet) {
        // solhint-disable-next-line reason-string
        require(IWallet(_wallet).authorised(msg.sender), "TS: must be an authorized module to call this method");
        _;
    }
}

// Copyright (C) 2018  Argent Labs Ltd. <https://argent.xyz>

// 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-only
pragma solidity >=0.5.4 <0.9.0;

/**
 * @title IWallet
 * @notice Interface for the BaseWallet
 */
interface IWallet {
    /**
     * @notice Returns the wallet owner.
     * @return The wallet owner address.
     */
    function owner() external view returns (address);

    /**
     * @notice Returns the number of authorised modules.
     * @return The number of authorised modules.
     */
    function modules() external view returns (uint);

    /**
     * @notice Sets a new owner for the wallet.
     * @param _newOwner The new owner.
     */
    function setOwner(address _newOwner) external;

    /**
     * @notice Checks if a module is authorised on the wallet.
     * @param _module The module address to check.
     * @return `true` if the module is authorised, otherwise `false`.
     */
    function authorised(address _module) external view returns (bool);

    /**
     * @notice Returns the module responsible for a static call redirection.
     * @param _sig The signature of the static call.
     * @return the module doing the redirection
     */
    function enabled(bytes4 _sig) external view returns (address);

    /**
     * @notice Enables/Disables a module.
     * @param _module The target module.
     * @param _value Set to `true` to authorise the module.
     */
    function authoriseModule(address _module, bool _value) external;

    /**
    * @notice Enables a static method by specifying the target module to which the call must be delegated.
    * @param _module The target module.
    * @param _method The static method signature.
    */
    function enableStaticCall(address _module, bytes4 _method) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

[{"constant":false,"inputs":[{"name":"_wallet","type":"address"},{"name":"_guardian","type":"address"}],"name":"revokeGuardian","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"}],"name":"isLocked","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"}],"name":"guardianCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"}],"name":"getLock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"}],"name":"getLocker","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_wallet","type":"address"},{"name":"_releaseAfter","type":"uint256"}],"name":"setLock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_wallet","type":"address"},{"name":"_guardian","type":"address"}],"name":"addGuardian","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"},{"name":"_guardian","type":"address"}],"name":"isGuardian","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_wallet","type":"address"}],"name":"getGuardians","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"}]

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