<?php

namespace App\Services;

use App\Models\SystemSetting;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Str;

class KavenegarSmsService
{
    private string $apiKey;
    private string $sender;

    public function __construct()
    {
        $this->apiKey = (string) SystemSetting::get('kavenegar_api_key', config('ifnex.kavenegar.api_key', ''));
        $this->sender = (string) SystemSetting::get('kavenegar_sender', config('ifnex.kavenegar.sender', '10008566'));
    }

    public function isEnabled(): bool
    {
        return !empty($this->apiKey);
    }

    public function sendVerificationCode(string $phone): array
    {
        $code = Str::random(5, '0123456789');
        $cacheKey = "sms_verify_{$phone}";

        Cache::put($cacheKey, $code, now()->addMinutes(10));

        $message = "کد تأیید IFNEX: {$code}";

        return $this->send($phone, $message);
    }

    public function verifyCode(string $phone, string $code): bool
    {
        $cacheKey = "sms_verify_{$phone}";
        $storedCode = Cache::get($cacheKey);

        if ($storedCode && $storedCode === $code) {
            Cache::forget($cacheKey);
            return true;
        }

        return false;
    }

    public function send(string $receptor, string $message): array
    {
        if (!$this->isEnabled()) {
            return [
                'success' => false,
                'message' => 'API Key Kavenegar تنظیم نشده است',
            ];
        }

        try {
            $response = Http::timeout(10)
                ->post("https://api.kavenegar.com/v1/{$this->apiKey}/sms/send.json", [
                    'receptor' => $receptor,
                    'sender' => $this->sender,
                    'message' => $message,
                ]);

            $data = $response->json();

            if ($response->successful() && isset($data['return']['status']) && $data['return']['status'] == 200) {
                return [
                    'success' => true,
                    'message' => 'پیامک با موفقیت ارسال شد',
                    'cost' => $data['entries'][0]['cost'] ?? 0,
                ];
            }

            return [
                'success' => false,
                'message' => $data['return']['message'] ?? 'خطا در ارسال پیامک',
            ];
        } catch (\Exception $e) {
            return [
                'success' => false,
                'message' => 'خطا در اتصال به سرور Kavenegar: ' . $e->getMessage(),
            ];
        }
    }

    public function sendBulk(array $receptors, string $message): array
    {
        if (!$this->isEnabled()) {
            return [
                'success' => false,
                'message' => 'API Key Kavenegar تنظیم نشده است',
            ];
        }

        try {
            $response = Http::timeout(30)
                ->post("https://api.kavenegar.com/v1/{$this->apiKey}/sms/send.json", [
                    'receptor' => $receptors,
                    'sender' => $this->sender,
                    'message' => $message,
                ]);

            $data = $response->json();

            if ($response->successful() && isset($data['return']['status']) && $data['return']['status'] == 200) {
                return [
                    'success' => true,
                    'message' => 'پیامک با موفقیت ارسال شد',
                    'cost' => collect($data['entries'])->sum('cost'),
                ];
            }

            return [
                'success' => false,
                'message' => $data['return']['message'] ?? 'خطا در ارسال پیامک',
            ];
        } catch (\Exception $e) {
            return [
                'success' => false,
                'message' => 'خطا در اتصال به سرور Kavenegar: ' . $e->getMessage(),
            ];
        }
    }

    public function checkStatus(string $messageId): array
    {
        if (!$this->isEnabled()) {
            return [
                'success' => false,
                'message' => 'API Key Kavenegar تنظیم نشده است',
            ];
        }

        try {
            $response = Http::timeout(10)
                ->get("https://api.kavenegar.com/v1/{$this->apiKey}/select.json", [
                    'messageid' => $messageId,
                ]);

            $data = $response->json();

            if ($response->successful() && isset($data['return']['status']) && $data['return']['status'] == 200) {
                $entry = $data['entries'][0] ?? null;
                return [
                    'success' => true,
                    'status' => $entry['status'] ?? 'unknown',
                    'status_text' => $entry['statustext'] ?? 'نامشخص',
                ];
            }

            return [
                'success' => false,
                'message' => $data['return']['message'] ?? 'خطا در بررسی وضعیت',
            ];
        } catch (\Exception $e) {
            return [
                'success' => false,
                'message' => 'خطا در اتصال به سرور Kavenegar: ' . $e->getMessage(),
            ];
        }
    }
}