<?php

namespace App\Http\Controllers;

use App\Http\Requests\SendRoomSwitchCommandRequest;
use App\Http\Requests\ReceiveRoomRegisterRequest;
use App\Http\Requests\ReceiveRoomStatusRequest;
use App\Services\TcpSocketClient;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Auth;
use App\Models\Room;
use App\Enums\RoomStatus;
use App\Http\Responses\ApiResponse;

/**
 * @OA\Tag(
 *     name="Auth",
 *     description="包廂控制"
 * )
 */
class RoomControlController extends Controller
{
    /**
     * @OA\Post(
     *     path="/api/room/receiveRegister",
     *     summary="包廂註冊控制指令",
     *     description="依據傳入的 branch_id 與 room_name，知道過來的設備來之於那個IP設備。",
     *     operationId="registerRoomCommand",
     *     tags={"Room Control"},
     *     @OA\RequestBody(
     *         required=true,
     *         @OA\JsonContent(ref="#/components/schemas/ReceiveRoomRegisterRequest")
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="成功傳送指令並回傳 TCP 回應",
     *         @OA\JsonContent(
     *             allOf={
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *                     @OA\Property(property="data", ref="#/components/schemas/Room")
     *                 )
     *             }
     *         )
     *     ),
     *     @OA\Response(
     *         response=401,
     *         description="Unauthorized",
     *         @OA\JsonContent(
     *             allOf={
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *                     @OA\Property(property="code", type="string", example="UNAUTHORIZED"),
     *                     @OA\Property(property="message", type="string", example="Unauthorized"),
     *                     @OA\Property(property="data", type="null")
     *                 )
     *             }
     *         )
     *     ),
     *     @OA\Parameter(
     *         name="Accept",
     *         in="header",
     *         required=true,
     *         @OA\Schema(type="string", default="application/json")
     *     )
     * )
     */
    public function receiveRegister(ReceiveRoomRegisterRequest $request): JsonResponse 
    {
        // 1. 驗證帳密（登入用）
        $credentials = $request->only('email', 'password');

        if (!Auth::attempt($credentials)) {
            return ApiResponse::unauthorized(); 
        }

        // 2. 取得登入使用者
        $user = Auth::user();

        // 3. 產生或取得 Token
        if (empty($user->api_plain_token)) {
            $token = $user->createToken('pc-heartbeat')->plainTextToken;
            $user->api_plain_token = $token;
            $user->save();
        } else {
            $token = $user->api_plain_token;
        }

        // 4. 驗證其他註冊欄位
        $validated = $request->validated(); // branch_id, room_name, room_ip

        // 5. 找出對應包廂
        $room = Room::where('branch_id', $validated['branch_id'])
                    ->where('name', $validated['room_name'])
                    ->first();

        if (!$room) {
            return ApiResponse::error('找不到對應包廂');
        }

        // 6. 更新包廂資訊
        $room->internal_ip = $request->ip(); 
        $room->port = 1000; // 預設值
        $room->is_online =1;
        $room->status = RoomStatus::Closed;
        $room->touch(); // 更新 updated_at
        $room->save();

        // 7. 回傳 token 與包廂資料
        return ApiResponse::success([
            'token' => $token,
            'room' => $room,
        ]);
    }
    public function StatusReport(ReceiveRoomStatusRequest $request)
    {
        $data = $request->validate([
            'hostname' => 'required|string',
            'ip' => 'required|string',
            'cpu' => 'nullable|numeric',
            'memory' => 'nullable|numeric',
            'disk' => 'nullable|numeric',
            'status' => 'required|string',
        ]);
    }
    /**
     * @OA\Post(
     *     path="/api/room/sendSwitch",
     *     summary="送出包廂控制指令",
     *     description="依據傳入的 room_id 與 command，透過 TCP 傳送對應指令給包廂電腦。",
     *     operationId="sendRoomSwitchCommand",
     *     tags={"Room Control"},
     *     security={{"Authorization":{}}},
     *     @OA\RequestBody(
     *         required=true,
     *         @OA\JsonContent(ref="#/components/schemas/SendRoomSwitchCommandRequest")
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="成功傳送指令並回傳 TCP 回應",
     *         @OA\JsonContent(
     *             allOf={
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *                     @OA\Property(property="data", ref="#/components/schemas/Room")
     *                 )
     *             }
     *         )
     *     ),
     *     @OA\Response(
     *         response=401,
     *         description="Unauthorized",
     *         @OA\JsonContent(
     *             allOf={
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *                     @OA\Property(property="code", type="string", example="UNAUTHORIZED"),
     *                     @OA\Property(property="message", type="string", example="Unauthorized"),
     *                     @OA\Property(property="data", type="null")
     *                 )
     *             }
     *         )
     *     ),
     *     @OA\Parameter(
     *         name="Accept",
     *         in="header",
     *         required=true,
     *         @OA\Schema(type="string", default="application/json")
     *     )
     * )
     */
    public function sendSwitch(SendRoomSwitchCommandRequest $request): JsonResponse
    {
        $validated = $request->validated();

        $room = Room::where([
            ['branch_id', $validated['branch_id']],
            ['name', $validated['room_name']],
        ])->first();

        if (!$room) {
            return ApiResponse::error('房間不存在');
        }

        // 檢查必要欄位是否缺失或狀態為錯誤
        if (empty($room->internal_ip) || empty($room->port)) {
            return ApiResponse::error('房間未設定 IP 或 Port');
        }

        if ($room->status === RoomStatus::Error) {
            return ApiResponse::error('房間目前處於錯誤狀態，無法操作');
        }

        $suffix = substr($room->name, -3) ?: $room->name;
        $signal = match ($validated['command']) {
            'active' => 'O',
            'closed' => 'X',
            'fire'   => 'F',
            default  => 'X', // fallback 保險起見
        };
        $data = $suffix . "," . $signal;
        
        //dd($data);
        $client = new TcpSocketClient($room->internal_ip, $room->port);
        try {
            $response = $client->send($data);
            
            $room->status=$validated['command'];
            $room->started_at=$validated['started_at'];
            $room->ended_at=$validated['ended_at'];
            $room->save();
            
            return ApiResponse::success($room);
        } catch (\Throwable $e) {
            $room->status=RoomStatus::Error;
            $room->started_at=null;
            $room->ended_at=null;
            $room->save();
            return ApiResponse::error($e->getMessage());
        }
    }
}