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// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/utils/Create2.sol";

contract EmailApproverFactory {
    address public immutable _APPROVERIMPL;

    event EmailApproverCreation(address indexed proxy);

    constructor(address _approverImpl) {
        _APPROVERIMPL = _approverImpl;
    }

    function proxyCode() external view returns (bytes memory) {
        return _proxyCode(_APPROVERIMPL);
    }
    /**
     * @notice  using solay ERC1967 https://github.com/Vectorized/solady/blob/5eff720c27746987dc95e5e2b720615d3d96f7ee/src/utils/LibClone.sol#L774C18-L774C18
     */

    function _proxyCode(address implementation) private pure returns (bytes memory deploymentData) {
        deploymentData = abi.encodePacked(
            hex"603d3d8160223d3973",
            implementation,
            hex"60095155f3363d3d373d3d363d7f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc545af43d6000803e6038573d6000fd5b3d6000f3"
        );
    }

    function createEmailApprover(bytes32 _senderCommitment, bytes32 _salt) external returns (address proxy) {
        address addr = getEmailApproverAddress(_senderCommitment, _salt);
        uint256 codeSize = addr.code.length;
        if (codeSize > 0) {
            return addr;
        }
        bytes memory _initializer = abi.encodeWithSignature("initialize(bytes32)", _senderCommitment);
        bytes memory deploymentData = _proxyCode(_APPROVERIMPL);
        bytes32 salt = _calcSalt(_initializer, _salt);
        assembly ("memory-safe") {
            proxy := create2(0x0, add(deploymentData, 0x20), mload(deploymentData), salt)
        }
        if (proxy == address(0)) {
            revert();
        }
        assembly ("memory-safe") {
            let succ := call(gas(), proxy, 0, add(_initializer, 0x20), mload(_initializer), 0, 0)
            if eq(succ, 0) { revert(0, 0) }
        }
        emit EmailApproverCreation(proxy);
    }

    function getEmailApproverAddress(bytes32 _senderCommitment, bytes32 _salt) public view returns (address proxy) {
        bytes memory _initializer = abi.encodeWithSignature("initialize(bytes32)", _senderCommitment);
        bytes memory deploymentData = _proxyCode(_APPROVERIMPL);
        bytes32 salt = _calcSalt(_initializer, _salt);
        proxy = Create2.computeAddress(salt, keccak256(deploymentData));
    }

    function _calcSalt(bytes memory _initializer, bytes32 _salt) private pure returns (bytes32 salt) {
        return keccak256(abi.encodePacked(keccak256(_initializer), _salt));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Create2.sol)

pragma solidity ^0.8.20;

/**
 * @dev Helper to make usage of the `CREATE2` EVM opcode easier and safer.
 * `CREATE2` can be used to compute in advance the address where a smart
 * contract will be deployed, which allows for interesting new mechanisms known
 * as 'counterfactual interactions'.
 *
 * See the https://eips.ethereum.org/EIPS/eip-1014#motivation[EIP] for more
 * information.
 */
library Create2 {
    /**
     * @dev Not enough balance for performing a CREATE2 deploy.
     */
    error Create2InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev There's no code to deploy.
     */
    error Create2EmptyBytecode();

    /**
     * @dev The deployment failed.
     */
    error Create2FailedDeployment();

    /**
     * @dev Deploys a contract using `CREATE2`. The address where the contract
     * will be deployed can be known in advance via {computeAddress}.
     *
     * The bytecode for a contract can be obtained from Solidity with
     * `type(contractName).creationCode`.
     *
     * Requirements:
     *
     * - `bytecode` must not be empty.
     * - `salt` must have not been used for `bytecode` already.
     * - the factory must have a balance of at least `amount`.
     * - if `amount` is non-zero, `bytecode` must have a `payable` constructor.
     */
    function deploy(uint256 amount, bytes32 salt, bytes memory bytecode) internal returns (address addr) {
        if (address(this).balance < amount) {
            revert Create2InsufficientBalance(address(this).balance, amount);
        }
        if (bytecode.length == 0) {
            revert Create2EmptyBytecode();
        }
        /// @solidity memory-safe-assembly
        assembly {
            addr := create2(amount, add(bytecode, 0x20), mload(bytecode), salt)
        }
        if (addr == address(0)) {
            revert Create2FailedDeployment();
        }
    }

    /**
     * @dev Returns the address where a contract will be stored if deployed via {deploy}. Any change in the
     * `bytecodeHash` or `salt` will result in a new destination address.
     */
    function computeAddress(bytes32 salt, bytes32 bytecodeHash) internal view returns (address) {
        return computeAddress(salt, bytecodeHash, address(this));
    }

    /**
     * @dev Returns the address where a contract will be stored if deployed via {deploy} from a contract located at
     * `deployer`. If `deployer` is this contract's address, returns the same value as {computeAddress}.
     */
    function computeAddress(bytes32 salt, bytes32 bytecodeHash, address deployer) internal pure returns (address addr) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40) // Get free memory pointer

            // |                   | ↓ ptr ...  ↓ ptr + 0x0B (start) ...  ↓ ptr + 0x20 ...  ↓ ptr + 0x40 ...   |
            // |-------------------|---------------------------------------------------------------------------|
            // | bytecodeHash      |                                                        CCCCCCCCCCCCC...CC |
            // | salt              |                                      BBBBBBBBBBBBB...BB                   |
            // | deployer          | 000000...0000AAAAAAAAAAAAAAAAAAA...AA                                     |
            // | 0xFF              |            FF                                                             |
            // |-------------------|---------------------------------------------------------------------------|
            // | memory            | 000000...00FFAAAAAAAAAAAAAAAAAAA...AABBBBBBBBBBBBB...BBCCCCCCCCCCCCC...CC |
            // | keccak(start, 85) |            ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ |

            mstore(add(ptr, 0x40), bytecodeHash)
            mstore(add(ptr, 0x20), salt)
            mstore(ptr, deployer) // Right-aligned with 12 preceding garbage bytes
            let start := add(ptr, 0x0b) // The hashed data starts at the final garbage byte which we will set to 0xff
            mstore8(start, 0xff)
            addr := keccak256(start, 85)
        }
    }
}

{
  "remappings": [
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@solady/=lib/solady/",
    "@zk-email/contracts/=node_modules/@zk-email/contracts/",
    "@source/=src/",
    "ds-test/=lib/openzeppelin-contracts-upgradeable/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solady/=lib/solady/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"_approverImpl","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"proxy","type":"address"}],"name":"EmailApproverCreation","type":"event"},{"inputs":[],"name":"_APPROVERIMPL","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_senderCommitment","type":"bytes32"},{"internalType":"bytes32","name":"_salt","type":"bytes32"}],"name":"createEmailApprover","outputs":[{"internalType":"address","name":"proxy","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_senderCommitment","type":"bytes32"},{"internalType":"bytes32","name":"_salt","type":"bytes32"}],"name":"getEmailApproverAddress","outputs":[{"internalType":"address","name":"proxy","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyCode","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"}]

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000000000000000000000000d7d99f54a4297c51fedf805fd9dcbd93e5fc884d

-----Decoded View---------------
Arg [0] : _approverImpl (address): 0xd7D99f54A4297C51FEdF805Fd9dCBd93E5fc884d

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000d7d99f54a4297c51fedf805fd9dcbd93e5fc884d