<?php

namespace App\Services\VoIP;

use App\Models\Setting;
use Illuminate\Support\Facades\Http;
use Throwable;

class ApiProvider implements VoIPProviderInterface
{
    public function initiateCall(string $phone, ?string $callerId = null): array
    {
        $baseUrl = rtrim((string) Setting::where('key', 'voip_api_base_url')->value('value'), '/');
        $token = Setting::where('key', 'voip_api_token')->value('value');
        $callPath = Setting::where('key', 'voip_api_call_path')->value('value') ?: '/calls';

        if (! $baseUrl) {
            return [
                'success' => false,
                'provider_call_id' => null,
                'message' => 'نشانی ای‌پی‌آی تماس تنظیم نشده است',
                'status' => 'configuration_error',
            ];
        }

        $request = Http::acceptJson()->timeout(10);
        if ($token) {
            $request = $request->withToken($token);
        }

        $response = $request->post($baseUrl.'/'.ltrim($callPath, '/'), [
            'phone' => $phone,
            'caller_id' => $callerId,
        ]);

        $body = $response->json() ?: [];

        return [
            'success' => $response->successful(),
            'provider_call_id' => $body['provider_call_id'] ?? $body['call_id'] ?? null,
            'message' => $body['message'] ?? ($response->successful() ? 'تماس از راه ای‌پی‌آی ارسال شد' : 'خطا در ارسال تماس از راه ای‌پی‌آی'),
            'status' => $body['status'] ?? ($response->successful() ? 'initiated' : 'failed'),
            'raw' => $body,
        ];
    }

    public function getCallStatus(string $providerCallId): array
    {
        $baseUrl = rtrim((string) Setting::where('key', 'voip_api_base_url')->value('value'), '/');
        $token = Setting::where('key', 'voip_api_token')->value('value');
        $statusPath = Setting::where('key', 'voip_api_status_path')->value('value') ?: '/calls/{id}';

        if (! $baseUrl) {
            return ['status' => 'configuration_error'];
        }

        $request = Http::acceptJson()->timeout(10);
        if ($token) {
            $request = $request->withToken($token);
        }

        $url = $baseUrl.'/'.ltrim(str_replace('{id}', $providerCallId, $statusPath), '/');
        $response = $request->get($url);

        return $response->json() ?: [
            'status' => $response->successful() ? 'unknown' : 'failed',
        ];
    }

    public function getRecordingUrl(string $providerCallId): ?string
    {
        $template = Setting::where('key', 'voip_api_recording_url')->value('value');

        return $template ? str_replace('{id}', $providerCallId, $template) : null;
    }

    public function testConnection(): array
    {
        $missing = [];
        foreach (['voip_api_base_url', 'voip_api_token'] as $key) {
            if (! Setting::where('key', $key)->value('value')) {
                $missing[] = $key;
            }
        }

        if ($missing !== []) {
            return ['ok' => false, 'message' => 'تنظیمات اتصال API کامل نیست.', 'missing' => $missing];
        }

        $baseUrl = rtrim((string) Setting::where('key', 'voip_api_base_url')->value('value'), '/');
        $token = Setting::where('key', 'voip_api_token')->value('value');
        $healthPath = Setting::where('key', 'voip_api_health_path')->value('value') ?: '/health';
        $started = microtime(true);
        try {
            $response = Http::acceptJson()->withToken($token)->timeout(10)->get($baseUrl.'/'.ltrim($healthPath, '/'));
            $latency = (int) round((microtime(true) - $started) * 1000);
            return [
                'ok' => $response->successful(),
                'message' => $response->successful() ? "اتصال واقعی API موفق بود ({$latency} میلی‌ثانیه)." : "سرویس API پاسخ {$response->status()} داد.",
                'missing' => [],
                'latency_ms' => $latency,
                'http_status' => $response->status(),
            ];
        } catch (Throwable $error) {
            return ['ok' => false, 'message' => 'اتصال واقعی API برقرار نشد: '.$error->getMessage(), 'missing' => []];
        }
    }
}