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// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**************************************

    security-contact:
    - [email protected]

    maintainers:
    - [email protected]
    - [email protected]
    - [email protected]
    - [email protected]

    contributors:
    - [email protected]

**************************************/

// Local imports - libraries
import { LibCrossChainEvmConfiguration } from "../../libraries/storage/cross-chain/LibCrossChainEvmConfiguration.sol";
import { LibLayerZeroSender } from "../../libraries/storage/cross-chain/layer-zero/LibLayerZeroSender.sol";
import { LibLayerZeroReceiver } from "../../libraries/storage/cross-chain/layer-zero/LibLayerZeroReceiver.sol";

// Local imports - interfaces
import { ILayerZeroViewFacet } from "../../interfaces/cross-chain/ILayerZeroViewFacet.sol";

contract LayerZeroViewFacet is ILayerZeroViewFacet {
    /// @dev Getter for cross-chain configured diamonds.
    /// @param _chainId ID of another chain
    /// @return Address of fundraising diamond
    function getRemoteDiamond(uint256 _chainId) external view returns (address) {
        // return
        return LibCrossChainEvmConfiguration.getFundraising(_chainId);
    }

    /// @dev Getter for cross-chain enabled functions.
    /// @param _chainId ID of another chain
    /// @param _selector Byte4 encoded function selector
    /// @return True if function is whitelisted for cross-chain calls
    function getSupportedFunction(uint256 _chainId, bytes4 _selector) external view returns (bool) {
        // return
        return LibCrossChainEvmConfiguration.getSupportedFunction(_chainId, _selector);
    }

    /// @dev Getter for network to which sender can send messages.
    /// @param _chainId ID of another chain
    /// @return LayerZero network id for correctly mapped network
    function getOutgoingNetwork(uint256 _chainId) external view returns (uint32) {
        // return
        return LibLayerZeroSender.getNetwork(_chainId);
    }

    /// @dev Getter for network from which receiver can receive messages.
    /// @param _lzChainId ID of another chain in LayerZero format
    /// @return Native network id for correctly mapped network
    function getIncomingNetwork(uint32 _lzChainId) external view returns (uint256) {
        // return
        return LibLayerZeroReceiver.getNetwork(_lzChainId);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**************************************

    security-contact:
    - [email protected]

    maintainers:
    - [email protected]
    - [email protected]
    - [email protected]
    - [email protected]

    contributors:
    - [email protected]

**************************************/

/// @notice Library containing cross-chain EVM configuration
library LibCrossChainEvmConfiguration {
    // -----------------------------------------------------------------------
    //                              Constants
    // -----------------------------------------------------------------------

    /// @dev Cross-chain EVM configuration storage pointer.
    bytes32 internal constant CC_EVM_CONFIG_STORAGE_POSITION = keccak256("angelblock.cc.evm.config");

    // -----------------------------------------------------------------------
    //                              Structs
    // -----------------------------------------------------------------------

    /// @dev Cross-chain EVM configuration storage struct.
    /// @param fundraisings Mapping of native chain id to fundraising address on the given chain
    /// @param supportedFunctions Mapping of native chain id to supported 4 byte signature of function
    struct EvmConfigurationStorage {
        mapping(uint256 => address) fundraisings;
        mapping(uint256 => mapping(bytes4 => bool)) supportedFunctions;
    }

    // -----------------------------------------------------------------------
    //                              Diamond storage
    // -----------------------------------------------------------------------

    /// @dev Function returning cross-chain evm configuration storage at storage pointer slot.
    /// @return ecs EvmConfigurationStorage struct instance at storage pointer position
    function evmConfigurationStorage() internal pure returns (EvmConfigurationStorage storage ecs) {
        // declare position
        bytes32 position = CC_EVM_CONFIG_STORAGE_POSITION;

        // set slot to position
        assembly {
            ecs.slot := position
        }

        // explicit return
        return ecs;
    }

    // -----------------------------------------------------------------------
    //                              Getters
    // -----------------------------------------------------------------------

    /// @dev Diamond storage getter: Fundraising address.
    /// @param _nativeChainId ID of the chain
    /// @return Address of the fundraising
    function getFundraising(uint256 _nativeChainId) internal view returns (address) {
        // return
        return evmConfigurationStorage().fundraisings[_nativeChainId];
    }

    /// @dev Diamond storage getter: Supported function.
    /// @param _nativeChainId ID of the chain
    /// @param _supportedFunctionSelector Selector of function
    /// @return True if function is supported
    function getSupportedFunction(uint256 _nativeChainId, bytes4 _supportedFunctionSelector) internal view returns (bool) {
        // return
        return evmConfigurationStorage().supportedFunctions[_nativeChainId][_supportedFunctionSelector];
    }

    // -----------------------------------------------------------------------
    //                              Setters
    // -----------------------------------------------------------------------

    /// @dev Diamond storage setter: Fundraising address.
    /// @param _nativeChainId ID of the chain
    /// @param _fundraising Address of the fundraising
    function setFundraising(uint256 _nativeChainId, address _fundraising) internal {
        // set fundraising
        evmConfigurationStorage().fundraisings[_nativeChainId] = _fundraising;
    }

    /// @dev Diamond storage setter: Supported function.
    /// @param _nativeChainId ID of the chain
    /// @param _supportedFunctionSelector Selector of function
    /// @param _isSupported Boolean if function is supported
    function setSupportedFunction(uint256 _nativeChainId, bytes4 _supportedFunctionSelector, bool _isSupported) internal {
        // set supported function
        evmConfigurationStorage().supportedFunctions[_nativeChainId][_supportedFunctionSelector] = _isSupported;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**************************************

    security-contact:
    - [email protected]

    maintainers:
    - [email protected]
    - [email protected]
    - [email protected]
    - [email protected]

    contributors:
    - [email protected]

**************************************/

/// @notice Library containing necessary information for sending messages via LayerZero
library LibLayerZeroSender {
    // -----------------------------------------------------------------------
    //                              Storage pointer
    // -----------------------------------------------------------------------

    /// @dev Raise storage pointer.
    bytes32 internal constant LZ_SENDER_STORAGE_POSITION = keccak256("angelblock.cc.lz.v2.sender");

    // -----------------------------------------------------------------------
    //                              Structs
    // -----------------------------------------------------------------------

    /// @dev LayerZero sender struct.
    /// @param refundAddress Refund address
    /// @param networks Mapping of native network id to LZ network id for supported networks
    struct LayerZeroSenderStorage {
        address refundAddress;
        mapping(uint256 => uint32) networks;
    }

    // -----------------------------------------------------------------------
    //                              Storage
    // -----------------------------------------------------------------------

    // diamond storage getter
    function lzSenderStorage() internal pure returns (LayerZeroSenderStorage storage lzs) {
        // declare position
        bytes32 position = LZ_SENDER_STORAGE_POSITION;

        // set slot to position
        assembly {
            lzs.slot := position
        }

        // explicit return
        return lzs;
    }

    // -----------------------------------------------------------------------
    //                              Getters / setters
    // -----------------------------------------------------------------------

    /// @dev Diamond storage getter: refund address.
    /// @return Refund address
    function getRefundAddress() internal view returns (address) {
        // return
        return lzSenderStorage().refundAddress;
    }

    /// @dev Diamond storage getter: network.
    /// @param _nativeChainId Native chain id for given network
    /// @return LayerZero network id
    function getNetwork(uint256 _nativeChainId) internal view returns (uint32) {
        // return
        return lzSenderStorage().networks[_nativeChainId];
    }

    /// @dev Diamond storage setter: refund address.
    /// @param _refundAddress New refund address for LayerZero calls
    function setRefundAddress(address _refundAddress) internal {
        lzSenderStorage().refundAddress = _refundAddress;
    }

    /// @dev Diamond storage setter: network.
    /// @param _nativeChainId Native chain id
    /// @param _layerZeroChainId Network chain id in LayerZero format
    function setNetwork(uint256 _nativeChainId, uint32 _layerZeroChainId) internal {
        lzSenderStorage().networks[_nativeChainId] = _layerZeroChainId;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**************************************

    security-contact:
    - [email protected]

    maintainers:
    - [email protected]
    - [email protected]
    - [email protected]
    - [email protected]

    contributors:
    - [email protected]

**************************************/

// ToDo : Migration with clearing data from V1 storage version
library LibLayerZeroReceiver {
    bytes32 internal constant LZ_RECEIVER_STORAGE_POSITION = keccak256("angelblock.cc.lz.v2.receiver");

    struct LayerZeroReceiverStorage {
        mapping(uint32 => uint256) networks;
        mapping(uint32 => mapping(bytes32 => uint64)) lastNonce;
    }

    // diamond storage getter
    function lzReceiverStorage() internal pure returns (LayerZeroReceiverStorage storage lzrs) {
        // declare position
        bytes32 position = LZ_RECEIVER_STORAGE_POSITION;

        // set slot to position
        assembly {
            lzrs.slot := position
        }

        // explicit return
        return lzrs;
    }

    // -----------------------------------------------------------------------
    //                              Getters / setters
    // -----------------------------------------------------------------------

    /// @dev Diamond storage getter: native network id.
    /// @param _layerZeroChainId LayerZeroV2 chain id for given native network
    /// @return Native network id
    function getNetwork(uint32 _layerZeroChainId) internal view returns (uint256) {
        return lzReceiverStorage().networks[_layerZeroChainId];
    }

    /// @dev Diamond storage setter: native network for LayerZeroV2 network id.
    /// @param _layerZeroChainId LayerZeroV2 chain id
    /// @param _nativeChainId Native chain id
    function setNetwork(uint32 _layerZeroChainId, uint256 _nativeChainId) internal {
        lzReceiverStorage().networks[_layerZeroChainId] = _nativeChainId;
    }

    /// @dev Diamond storage getter: get last nonce.
    /// @param _layerZeroChainId LayerZeroV2 chain id
    /// @param _srcAddress Address in bytes32 (LayerZeroV2 format)
    /// @return Last used nonce
    function getLastNonce(uint32 _layerZeroChainId, bytes32 _srcAddress) internal view returns (uint64) {
        return lzReceiverStorage().lastNonce[_layerZeroChainId][_srcAddress];
    }

    /// @dev Diamond storage setter: last used nonce.
    /// @param _layerZeroChainId LayerZeroV2 chain id
    /// @param _srcAddress Address in bytes32 (LayerZeroV2 format)
    /// @param _nonce Nonce
    function setNonceUsed(uint32 _layerZeroChainId, bytes32 _srcAddress, uint64 _nonce) internal {
        lzReceiverStorage().lastNonce[_layerZeroChainId][_srcAddress] = _nonce;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/**************************************

    security-contact:
    - [email protected]

    maintainers:
    - [email protected]
    - [email protected]
    - [email protected]
    - [email protected]

    contributors:
    - [email protected]

**************************************/

interface ILayerZeroViewFacet {
    /// @dev Getter for cross-chain configured diamonds.
    /// @param _chainId ID of another chain
    /// @return Address of fundraising diamond
    function getRemoteDiamond(uint256 _chainId) external view returns (address);

    /// @dev Getter for cross-chain enabled functions.
    /// @param _chainId ID of another chain
    /// @param _selector Byte4 encoded function selector
    /// @return True if function is whitelisted for cross-chain calls
    function getSupportedFunction(uint256 _chainId, bytes4 _selector) external view returns (bool);

    /// @dev Getter for network to which sender can send messages.
    /// @param _chainId ID of another chain
    /// @return LayerZero network id for correctly mapped network
    function getOutgoingNetwork(uint256 _chainId) external view returns (uint32);

    /// @dev Getter for network from which receiver can receive messages.
    /// @param _lzChainId ID of another chain in LayerZero format
    /// @return Native network id for correctly mapped network
    function getIncomingNetwork(uint32 _lzChainId) external view returns (uint256);
}

{
  "remappings": [
    "@openzeppelin/=src/fundraising/node_modules/@openzeppelin/",
    "ds-test/=src/fundraising/node_modules/ds-test/src/",
    "forge-std/=src/fundraising/node_modules/forge-std/src/",
    "@layerzerolabs/lz-evm-oapp-v2/=src/fundraising/node_modules/@layerzerolabs/lz-evm-oapp-v2/",
    "@layerzerolabs/lz-evm-messagelib-v2/=src/fundraising/node_modules/@layerzerolabs/lz-evm-messagelib-v2/",
    "@layerzerolabs/lz-evm-protocol-v2/=src/fundraising/node_modules/@layerzerolabs/lz-evm-protocol-v2/",
    "solidity-bytes-utils/=src/fundraising/node_modules/solidity-bytes-utils/",
    "ethereum-xcm-v3/=src/fundraising/node_modules/ethereum-xcm-v3/",
    "base58-solidity/=src/fundraising/node_modules/base58-solidity/",
    "safe/=src/fundraising/node_modules/safe/",
    "surl/=src/fundraising/node_modules/surl/src/",
    "murky/=src/fundraising/node_modules/murky/",
    "stringutils/=node_modules/stringutils/src/",
    "permit2/=node_modules/permit2/src/",
    "hardhat/=src/fundraising/node_modules/hardhat/",
    "openzeppelin-contracts/=src/fundraising/node_modules/murky/lib/openzeppelin-contracts/",
    "solidity-stringutils/=src/fundraising/node_modules/surl/lib/solidity-stringutils/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200,
    "details": {
      "yul": true
    }
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

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[{"inputs":[{"internalType":"uint32","name":"_lzChainId","type":"uint32"}],"name":"getIncomingNetwork","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_chainId","type":"uint256"}],"name":"getOutgoingNetwork","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_chainId","type":"uint256"}],"name":"getRemoteDiamond","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_chainId","type":"uint256"},{"internalType":"bytes4","name":"_selector","type":"bytes4"}],"name":"getSupportedFunction","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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