// File: /Users/vyacheslavvoronchuk/projects/greet_escrow/contracts/Registry.sol



// SPDX-License-Identifier: MPL-2.0

pragma solidity >=0.8.4 <0.9.0;

import "../node_modules/@openzeppelin/contracts/access/Ownable.sol";
import "./interfaces/IInsurance.sol";

contract Registry is Ownable {
    string private constant ERROR_NOT_REGISTERED = "Not registered";

    IInsurance public insuranceManager;

    mapping(address => bool) public escrowContracts;

    event NewContract(
        address indexed escrowSmartContract,
        bytes32 cid,
        address indexed payer,
        address indexed payee
    );

    /** 
     * @dev Used to keep single event repository for different versions of escrow contracts.
     */
    constructor() Ownable() {
    }

    /** 
     * @dev Register smart-contract for insurance coverage.
     *
     * @param _insuranceManager Address of IInsurance contract.
     */
    function setInsuranceManager(address _insuranceManager) external onlyOwner {
        insuranceManager = IInsurance(_insuranceManager);
    }

    /** 
     * @dev Register escrow smart-contract with a universal minimal interface (no milestones, amendments etc).
     *
     * @param _cid Contract's IPFS cid.
     * @param _payer Party which pays for the contract or on behalf of which the funding was done.
     * @param _payee Party which recieves the payment.
     */
    function registerNewContract(bytes32 _cid, address _payer, address _payee) public {
        require(escrowContracts[msg.sender], ERROR_NOT_REGISTERED);
        emit NewContract(msg.sender, _cid, _payer, _payee);
    }

    /** 
     * @dev Register escrow smart-contract.
     *
     * @param _escrowContract Enable / disable escrow smart-contract.
     * @param _status true to enable, false to disable.
     */
    function toggleContractRegistration(address _escrowContract, bool _status) external onlyOwner {
        escrowContracts[_escrowContract] = _status;
    }
}

// File: /Users/vyacheslavvoronchuk/projects/greet_escrow/contracts/interfaces/IInsurance.sol



// SPDX-License-Identifier: MPL-2.0

pragma solidity >=0.8.4 <0.9.0;

interface IInsurance {
    function getCoverage(bytes32 _cid, address _token, uint256 _feeAmount) external view returns (uint256, uint256);
    function useCoverage(bytes32 _cid, address _token, uint256 _amount) external returns (bool);
}
// File: /Users/vyacheslavvoronchuk/projects/greet_escrow/node_modules/@openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// File: /Users/vyacheslavvoronchuk/projects/greet_escrow/node_modules/@openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/*
 * @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) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}