<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;

/**
 * Wallet Controller
 * Replaces: ride/passenger/**
 * متحكم المحفظة (Wallet Controller)
 * 
 * الغرض من الملف:
 * إدارة العمليات المالية للركاب، بما في ذلك عرض الرصيد، شحن المحفظة، وعرض سجل العمليات.
 * 
 * كيفية العمل:
 * 1. يتواصل مع جداول (passengerWallet) و (payments) لجلب البيانات المالية.
 * 2. يسمح للركاب بإضافة أموال لمحفظتهم وتحديث رصيدهم.
 * 3. يعرض قائمة بالمعاملات المالية السابقة (Transactions).
 */
class WalletController extends Controller
{
    /** GET /v2/wallet/passenger */
    public function index(Request $request): JsonResponse
    {
        $id = $request->attributes->get('_jwt_user_id');
        $wallet = DB::connection('primary')->table('passengerWallet')
            ->where('passenger_id', $id)->first();

        return response()->json([
            'status' => 'success',
            'data' => $wallet ?? ['passenger_id' => $id, 'balance' => '0.00'],
        ]);
    }

    /** GET /v2/wallet/passenger/balance */
    public function balance(Request $request): JsonResponse
    {
        $id = $request->attributes->get('_jwt_user_id');
        $bal = DB::connection('primary')->table('passengerWallet')
            ->where('passenger_id', $id)->value('balance') ?? '0.00';

        return response()->json(['status' => 'success', 'data' => ['balance' => $bal]]);
    }

    /** POST /v2/wallet/passenger */
    public function addFunds(Request $request): JsonResponse
    {
        $request->validate([
            'amount' => 'required|numeric|min:0.01',
            'payment_method' => 'required|string',
        ]);

        $id = $request->attributes->get('_jwt_user_id');

        DB::connection('primary')->beginTransaction();
        try {
            $wallet = DB::connection('primary')->table('passengerWallet')
                ->where('passenger_id', $id)->lockForUpdate()->first();

            if ($wallet) {
                DB::connection('primary')->table('passengerWallet')
                    ->where('passenger_id', $id)
                    ->increment('balance', $request->input('amount'));
            } else {
                DB::connection('primary')->table('passengerWallet')->insert([
                    'passenger_id' => $id,
                    'balance' => $request->input('amount'),
                ]);
            }

            // Record transaction
            DB::connection('primary')->table('passengerWalletTransactions')->insert([
                'passenger_id' => $id,
                'amount' => $request->input('amount'),
                'type' => 'credit',
                'payment_method' => $request->input('payment_method'),
                'created_at' => now(),
            ]);

            DB::connection('primary')->commit();

            $newBalance = DB::connection('primary')->table('passengerWallet')
                ->where('passenger_id', $id)->value('balance');

            return response()->json([
                'status' => 'success',
                'data' => ['balance' => $newBalance],
            ]);
        } catch (\Exception $e) {
            DB::connection('primary')->rollBack();
            return response()->json(['status' => 'failure', 'message' => 'Transaction failed'], 500);
        }
    }

    /** PUT /v2/wallet/passenger — ADMIN ONLY */
    public function update(Request $request): JsonResponse
    {
        // Only admins can directly set balance
        $userType = $request->attributes->get('_jwt_user_type');
        if ($userType !== 'admin') {
            return response()->json(['status' => 'failure', 'message' => 'Unauthorized'], 403);
        }

        $request->validate([
            'balance' => 'required|numeric|min:0',
            'passenger_id' => 'required|string',
        ]);

        DB::connection('primary')->table('passengerWallet')
            ->where('passenger_id', $request->input('passenger_id'))
            ->update(['balance' => $request->input('balance')]);

        return response()->json(['status' => 'success']);
    }


    /** GET /v2/wallet/passenger/transactions */
    public function transactions(Request $request): JsonResponse
    {
        $id = $request->attributes->get('_jwt_user_id');
        $page = (int) $request->input('page', 1);
        $limit = min((int) $request->input('limit', 20), 50);

        // Get from payments table (completed rides)
        $payments = DB::connection('primary')->table('payments')
            ->where('passengerID', $id)
            ->orderBy('created_at', 'desc')
            ->skip(($page - 1) * $limit)
            ->take($limit)
            ->get();

        return response()->json(['status' => 'success', 'data' => $payments]);
    }

    /** POST /v2/wallet/passenger/token */
    public function addToken(Request $request): JsonResponse
    {
        $request->validate([
            'token' => 'required|string',
            'amount' => 'required|numeric|min:0.01',
        ]);

        $id = $request->attributes->get('_jwt_user_id');

        DB::connection('primary')->table('payment_tokens_passenger')->insert([
            'token' => $request->input('token'),
            'passengerId' => $id,
            'dateCreated' => now(),
            'amount' => $request->input('amount'),
            'isUsed' => 0,
        ]);

        return response()->json(['status' => 'success'], 201);
    }
}