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

// interfaces

// libraries
import {EnumerableSetLib} from "solady/utils/EnumerableSetLib.sol";

/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/*                           STRUCTS                           */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
struct Hook {
    address module;
    uint32 entityId;
    bool isActive;
}

struct HookConfig {
    EnumerableSetLib.Bytes32Set preHooks;
    EnumerableSetLib.Bytes32Set postHooks;
    mapping(bytes4 selector => mapping(bytes32 entityId => bytes)) preHookData;
    mapping(bytes32 entityId => Hook) hookData;
}

/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/*                       BASE INTERFACE                       */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

interface IHookBase {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           ERRORS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
    error HookAlreadyExists();
    error HookDoesNotExist();
    error TooManyHooks();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
    event HookAdded(
        address indexed module,
        bytes4 indexed selector,
        uint32 indexed entityId,
        bool isPre,
        bool isPostHook
    );
    event HookRemoved(address indexed module, bytes4 indexed selector, uint32 indexed entityId);
}