<?php

namespace App\Services;

use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;

/**
 * 与 wx.sstbc.com app/Http/functions.php 中 ymSms() 相同通道与签名规则。
 */
class BtomSmsService
{
    public function sendContent(string $mobile, string $content): bool
    {
        $appId = (string) config('sms.app_id');
        $secret = (string) config('sms.secret');
        $url = (string) config('sms.gateway');

        if ($appId === '' || $secret === '') {
            Log::warning('SMS skipped: SMS_APPID or SMS_SECRETKEY empty');

            return false;
        }

        $timestamp = date('YmdHis');
        $params = [
            'appId' => $appId,
            'timestamp' => $timestamp,
            'mobiles' => $mobile,
            'content' => $content,
        ];
        $params['sign'] = md5($appId.$secret.$timestamp);

        Log::info('sms.gateway request', [
            'url' => $url,
            'mobile_mask' => strlen($mobile) >= 11
                ? substr($mobile, 0, 3).'****'.substr($mobile, -4)
                : '***',
            'app_id_len' => strlen($appId),
            'timestamp' => $timestamp,
        ]);

        try {
            $response = Http::timeout((int) config('sms.timeout', 5))
                ->withHeaders(['Content-Type' => 'application/json'])
                ->get($url, $params);
        } catch (\Throwable $e) {
            Log::error('SMS request failed', ['exception' => $e->getMessage()]);

            return false;
        }

        $status = $response->status();
        $bodySnippet = substr($response->body(), 0, 500);
        Log::info('sms.gateway response', [
            'http_status' => $status,
            'body_preview' => $bodySnippet,
        ]);

        $return = $response->json();
        if (! is_array($return)) {
            Log::error('SMS invalid JSON', ['body' => $response->body()]);

            return false;
        }

        if (($return['code'] ?? '') !== 'SUCCESS') {
            Log::warning('SMS gateway error', array_merge($return, ['http_status' => $status]));

            return false;
        }

        Log::info('sms.gateway success', [
            'mobile_mask' => strlen($mobile) >= 11
                ? substr($mobile, 0, 3).'****'.substr($mobile, -4)
                : '***',
        ]);

        return true;
    }
}