// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

import {IMessageRelay} from "./interfaces/IMessageRelay.sol";
import {Message} from "./interfaces/IMessageDispatcher.sol";
import {IYaho} from "./interfaces/IYaho.sol";
import {MessageHashCalculator} from "./utils/MessageHashCalculator.sol";

contract Yaho is IYaho, MessageHashCalculator {
    mapping(uint256 => bytes32) public hashes;
    uint256 private count;

    /// @dev Dispatches a batch of messages, putting their into storage and emitting their contents as an event.
    /// @param messages An array of Messages to be dispatched.
    /// @return messageIds An array of message IDs corresponding to the dispatched messages.
    function dispatchMessages(
        Message[] memory messages
    ) public payable returns (bytes32[] memory) {
        if (messages.length == 0) revert NoMessagesGiven(address(this));
        bytes32[] memory messageIds = new bytes32[](messages.length);
        for (uint256 i = 0; i < messages.length; i++) {
            uint256 id = count;
            hashes[id] = calculateHash(
                block.chainid,
                id,
                address(this),
                msg.sender,
                messages[i]
            );
            messageIds[i] = bytes32(id);
            emit MessageDispatched(
                bytes32(id),
                msg.sender,
                messages[i].toChainId,
                messages[i].to,
                messages[i].data
            );
            count++;
        }
        return messageIds;
    }

    /// @dev Relays hashes of the given messageIds to the given adapters.
    /// @param messageIds Array of IDs of the message hashes to relay to the given adapters.
    /// @param adapters Array of relay adapter addresses to which hashes should be relayed.
    /// @param destinationAdapters Array of oracle adapter addresses to receive hashes.
    /// @return adapterReciepts Reciepts from each of the relay adapters.
    function relayMessagesToAdapters(
        uint256[] memory messageIds,
        address[] memory adapters,
        address[] memory destinationAdapters
    ) external payable returns (bytes32[] memory) {
        if (messageIds.length == 0) revert NoMessageIdsGiven(address(this));
        if (adapters.length == 0) revert NoAdaptersGiven(address(this));
        if (adapters.length != destinationAdapters.length)
            revert UnequalArrayLengths(address(this));
        bytes32[] memory adapterReciepts = new bytes32[](adapters.length);
        for (uint256 i = 0; i < adapters.length; i++) {
            adapterReciepts[i] = IMessageRelay(adapters[i]).relayMessages(
                messageIds,
                destinationAdapters[i]
            );
        }
        return adapterReciepts;
    }

    /// @dev Dispatches an array of messages and relays their hashes to an array of relay adapters.
    /// @param messages An array of Messages to be dispatched.
    /// @param adapters Array of relay adapter addresses to which hashes should be relayed.
    /// @param destinationAdapters Array of oracle adapter addresses to receive hashes.
    /// @return messageIds An array of message IDs corresponding to the dispatched messages.
    /// @return adapterReciepts Reciepts from each of the relay adapters.
    function dispatchMessagesToAdapters(
        Message[] memory messages,
        address[] memory adapters,
        address[] memory destinationAdapters
    ) external payable returns (bytes32[] memory messageIds, bytes32[] memory) {
        if (adapters.length == 0) revert NoAdaptersGiven(address(this));
        messageIds = dispatchMessages(messages);
        uint256[] memory uintIds = new uint256[](messageIds.length);
        for (uint256 i = 0; i < messageIds.length; i++) {
            uintIds[i] = uint256(messageIds[i]);
        }
        bytes32[] memory adapterReciepts = new bytes32[](adapters.length);
        for (uint256 i = 0; i < adapters.length; i++) {
            adapterReciepts[i] = IMessageRelay(adapters[i]).relayMessages(
                uintIds,
                destinationAdapters[i]
            );
        }
        return (messageIds, adapterReciepts);
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

struct Message {
    address to;
    uint256 toChainId;
    bytes data;
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

import {Message} from "./IMessage.sol";

interface IMessageDispatcher {
    event MessageDispatched(
        bytes32 indexed messageId,
        address indexed from,
        uint256 indexed toChainId,
        address to,
        bytes data
    );

    function dispatchMessages(
        Message[] memory messages
    ) external payable returns (bytes32[] memory messageIds);
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

interface IMessageRelay {
    function relayMessages(
        uint256[] memory messageIds,
        address adapter
    ) external payable returns (bytes32 receipts);
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

import {IMessageDispatcher, Message} from "./IMessageDispatcher.sol";

interface IYaho is IMessageDispatcher {
    error NoMessagesGiven(address emitter);
    error NoMessageIdsGiven(address emitter);
    error NoAdaptersGiven(address emitter);
    error UnequalArrayLengths(address emitter);

    function dispatchMessages(
        Message[] memory messages
    ) external payable returns (bytes32[] memory);

    function relayMessagesToAdapters(
        uint256[] memory messageIds,
        address[] memory adapters,
        address[] memory destinationAdapters
    ) external payable returns (bytes32[] memory);

    function dispatchMessagesToAdapters(
        Message[] memory messages,
        address[] memory adapters,
        address[] memory destinationAdapters
    ) external payable returns (bytes32[] memory messageIds, bytes32[] memory);

    function hashes(uint256) external view returns (bytes32);
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.17;

import {Message} from "../interfaces/IMessage.sol";

contract MessageHashCalculator {
    /// @dev Calculates the ID of a given message.
    /// @param chainId ID of the chain on which the message was/will be dispatched.
    /// @param id ID of the message that was/will be dispatched.
    /// @param origin Contract that did/will dispatch the given message.
    /// @param sender Sender of the message that was/will be dispatched.
    /// @param message Message that was/will be dispatched.
    function calculateHash(
        uint256 chainId,
        uint256 id,
        address origin,
        address sender,
        Message memory message
    ) public pure returns (bytes32 calculatedHash) {
        calculatedHash = keccak256(
            abi.encode(chainId, id, origin, sender, message)
        );
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "viaIR": true,
  "evmVersion": "paris",
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"emitter","type":"address"}],"name":"NoAdaptersGiven","type":"error"},{"inputs":[{"internalType":"address","name":"emitter","type":"address"}],"name":"NoMessageIdsGiven","type":"error"},{"inputs":[{"internalType":"address","name":"emitter","type":"address"}],"name":"NoMessagesGiven","type":"error"},{"inputs":[{"internalType":"address","name":"emitter","type":"address"}],"name":"UnequalArrayLengths","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"messageId","type":"bytes32"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"uint256","name":"toChainId","type":"uint256"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"MessageDispatched","type":"event"},{"inputs":[{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"address","name":"origin","type":"address"},{"internalType":"address","name":"sender","type":"address"},{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"toChainId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Message","name":"message","type":"tuple"}],"name":"calculateHash","outputs":[{"internalType":"bytes32","name":"calculatedHash","type":"bytes32"}],"stateMutability":"pure","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"toChainId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Message[]","name":"messages","type":"tuple[]"}],"name":"dispatchMessages","outputs":[{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"toChainId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Message[]","name":"messages","type":"tuple[]"},{"internalType":"address[]","name":"adapters","type":"address[]"},{"internalType":"address[]","name":"destinationAdapters","type":"address[]"}],"name":"dispatchMessagesToAdapters","outputs":[{"internalType":"bytes32[]","name":"messageIds","type":"bytes32[]"},{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"hashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"messageIds","type":"uint256[]"},{"internalType":"address[]","name":"adapters","type":"address[]"},{"internalType":"address[]","name":"destinationAdapters","type":"address[]"}],"name":"relayMessagesToAdapters","outputs":[{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"payable","type":"function"}]

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