import { useCallback } from 'react';
import { invoke } from '@tauri-apps/api/core';

import { type UseGamesResult } from './useGames';
import { type UISettings } from './useSettings';

export interface GameActions {
    play: (id: string) => Promise<void>;
    startServer: (id: string) => Promise<void>;
    install: (id: string) => Promise<void>;
    update: (id: string) => Promise<void>;
    uninstall: (id: string) => Promise<void>;
    removeDownload: (id: string) => Promise<void>;
    cancelDownload: (id: string) => Promise<void>;
    viewFiles: (id: string) => Promise<void>;
}

/**
 * Thin wrappers over the backend `run_game` / `install_game` / `update_game`
 * / `uninstall_game` / `remove_downloaded_game` commands. Peer-backed downloads
 * are marked as "checking peers" until the backend emits an authoritative
 * operation snapshot; cancellation waits for the backend to clear that snapshot.
 */
export const useGameActions = (
    games: UseGamesResult,
    settings: Pick<UISettings, 'language' | 'username'>,
): GameActions => {
    const play = useCallback(async (id: string) => {
        try {
            await invoke('run_game', {
                id,
                language: settings.language,
                username: settings.username,
            });
        } catch (err) {
            console.error('run_game failed:', err);
        }
    }, [settings.language, settings.username]);

    const startServer = useCallback(async (id: string) => {
        try {
            await invoke('start_server', {
                id,
                language: settings.language,
                username: settings.username,
            });
        } catch (err) {
            console.error('start_server failed:', err);
        }
    }, [settings.language, settings.username]);

    const install = useCallback(async (id: string) => {
        try {
            const success = await invoke<boolean>('install_game', {
                id,
                language: settings.language,
                username: settings.username,
            });
            if (!success) return;

            const game = games.games.find(item => item.id === id);
            if (!game?.downloaded) {
                games.markChecking(id);
            }
        } catch (err) {
            console.error('install_game failed:', err);
        }
    }, [games, settings.language, settings.username]);

    const update = useCallback(async (id: string) => {
        try {
            const success = await invoke<boolean>('update_game', {
                id,
                language: settings.language,
                username: settings.username,
            });
            if (success) games.markChecking(id);
        } catch (err) {
            console.error('update_game failed:', err);
        }
    }, [games, settings.language, settings.username]);

    const uninstall = useCallback(async (id: string) => {
        try {
            await invoke('uninstall_game', { id });
        } catch (err) {
            console.error('uninstall_game failed:', err);
        }
    }, []);

    const removeDownload = useCallback(async (id: string) => {
        try {
            await invoke('remove_downloaded_game', { id });
        } catch (err) {
            console.error('remove_downloaded_game failed:', err);
        }
    }, []);

    const cancelDownload = useCallback(async (id: string) => {
        try {
            await invoke('cancel_download', { id });
        } catch (err) {
            console.error('cancel_download failed:', err);
        }
    }, []);

    const viewFiles = useCallback(async (id: string) => {
        try {
            await invoke('open_game_files', { id });
        } catch (err) {
            console.error('open_game_files failed:', err);
        }
    }, []);

    return { play, startServer, install, update, uninstall, removeDownload, cancelDownload, viewFiles };
};