<?php

namespace App\Http\Controllers\Api\Client\Service;

use App\Http\Controllers\Controller;
use App\Models\Service;
use App\Models\ServiceCancellationRequest;
use App\Services\ServiceCancellationNotifier;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class ServiceCancellationController extends Controller
{
    private const CLOSED_STATUSES = ['cancelled', 'terminated'];

    public function __construct(private readonly ServiceCancellationNotifier $notifier) {}

    public function store(Request $request, string $uuid): JsonResponse
    {
        $service = $this->ownedService($request, $uuid);
        $data = $request->validate([
            'reason_code' => 'nullable|string|max:40',
            'reason'      => 'required|string|min:3|max:1000',
        ]);

        if (in_array($service->status, self::CLOSED_STATUSES, true)) {
            return response()->json(['error' => true, 'message' => 'Dịch vụ đã được hủy.'], 422);
        }

        if ($service->cancel_at_expiry) {
            return response()->json(['error' => true, 'message' => 'Dịch vụ đã được lên lịch hủy khi hết hạn.'], 422);
        }

        if ($service->cancellationRequests()->pending()->exists()) {
            return response()->json(['error' => true, 'message' => 'Bạn đã gửi yêu cầu hủy dịch vụ này, vui lòng chờ nhân viên xử lý.'], 422);
        }

        $cancellation = $service->cancellationRequests()->create([
            'customer_id' => $service->customer_id,
            'reason_code' => $data['reason_code'] ?? null,
            'reason'      => trim($data['reason']),
        ]);

        $this->notifier->notify($cancellation, $request->ip());

        return response()->json(['error' => false, 'message' => 'Đã gửi yêu cầu hủy dịch vụ.', 'data' => $this->payload($cancellation)], 201);
    }

    public function destroy(Request $request, string $uuid): JsonResponse
    {
        $this->ownedService($request, $uuid)->cancellationRequests()->pending()->delete();

        return response()->json(['error' => false, 'message' => 'Đã rút yêu cầu hủy dịch vụ.']);
    }

    public static function payload(?ServiceCancellationRequest $request): ?array
    {
        return $request ? [
            'reason'       => $request->reason,
            'requested_at' => $request->created_at?->toISOString(),
        ] : null;
    }

    private function ownedService(Request $request, string $uuid): Service
    {
        return Service::where('uuid', $uuid)->where('customer_id', $request->user()->id)->firstOrFail();
    }
}