<?php

/**
 * 文件功能：聊天室座驾前台接口控制器。
 *
 * 提供座驾列表、用户当前座驾、购买记录与购买座驾接口。
 */

namespace App\Http\Controllers;

use App\Http\Requests\BuyRideRequest;
use App\Models\Room;
use App\Models\ShopItem;
use App\Services\ChatStateService;
use App\Services\RideService;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Auth;

/**
 * 聊天室座驾控制器
 * 负责前台座驾页面的数据读取与购买操作。
 */
class RideController extends Controller
{
    /**
     * 构造座驾控制器依赖。
     */
    public function __construct(
        private readonly RideService $rideService,
        private readonly ChatStateService $chatState,
    ) {}

    /**
     * 获取座驾页面需要的商品、当前座驾和购买记录。
     */
    public function items(): JsonResponse
    {
        $user = Auth::user();

        return response()->json([
            'items' => $this->rideService->activeItems()
                ->map(fn (ShopItem $item) => $this->rideService->formatItem($item))
                ->values(),
            'current_ride' => $this->rideService->formatCurrentRide($user),
            'purchases' => $this->rideService->purchaseRecords($user),
            'user_jjb' => $user->jjb ?? 0,
        ]);
    }

    /**
     * 购买座驾并返回最新金币和当前座驾状态。
     */
    public function buy(BuyRideRequest $request): JsonResponse
    {
        $user = Auth::user();
        $roomId = (int) $request->integer('room_id');
        $room = Room::query()->findOrFail($roomId);

        if (! $room->canUserEnter($user) || ! $this->chatState->isUserInRoom($roomId, $user->username)) {
            return response()->json(['status' => 'error', 'message' => '请先进入当前房间后再购买座驾。'], 403);
        }

        $item = ShopItem::query()->findOrFail((int) $request->integer('item_id'));
        $result = $this->rideService->buy($user, $item);

        if (! $result['ok']) {
            return response()->json(['status' => 'error', 'message' => $result['message']], 400);
        }

        return response()->json([
            'status' => 'success',
            'message' => $result['message'],
            'current_ride' => $result['current_ride'] ?? null,
            'purchases' => $this->rideService->purchaseRecords($user->fresh()),
            'jjb' => $user->fresh()->jjb,
        ]);
    }
}