// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

// interfaces

// libraries
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

// contracts

library ChannelStorage {
    // keccak256(abi.encode(uint256(keccak256("spaces.facets.channel.storage")) - 1)) &
    // ~bytes32(uint256(0xff))
    bytes32 internal constant STORAGE_SLOT =
        0x804ad633258ac9b908ae115a2763b3f6e04be3b1165402c872b25af518504300;

    struct Channel {
        bytes32 id;
        bool disabled;
        string metadata;
    }

    struct Layout {
        EnumerableSet.Bytes32Set channelIds;
        mapping(bytes32 channelId => Channel) channelById;
        mapping(bytes32 channelId => EnumerableSet.UintSet) rolesByChannelId;
    }

    function layout() internal pure returns (Layout storage ds) {
        assembly {
            ds.slot := STORAGE_SLOT
        }
    }
}