<?php

namespace App\Console\Commands;

use App\Notification\TelegramBot;
use App\Util;
use Illuminate\Console\Command;

/**
 * 检测配置的 iOS App Store 包是否被下架，若下架则通过 Telegram 通知。
 */
class CheckIosAppStore extends Command
{
    protected $signature = 'ios:check-app-store';

    protected $description = '检测 iOS App Store 包是否被下架，下架时 Telegram 通知';

    /** 要检测的 iOS 包列表：name => url */
    protected $apps = [
        'Slots Magnet Revolution' => 'https://apps.apple.com/us/app/slots-magnet-revolution/id6759797102',
        'Viking Mysteric Slots'   => 'https://apps.apple.com/us/app/viking-mysteric-slots/id6759851510',
        'Slots Chemistry Pirate'  => 'https://apps.apple.com/us/app/slots-chemistry-pirate/id6759852588',
    ];

    /** 页面内容中表示“已下架”的关键词（不区分大小写） */
    protected $delistedKeywords = [
        'no longer available',
        'removed this app from the app store',
        'not available',
        'this app is no longer',
        'has been removed',
    ];

    public function handle()
    {
        $env = env('APP_ENV', 'local');
        $delisted = [];

        foreach ($this->apps as $name => $url) {
            $result = $this->checkApp($url);
            if ($result['delisted']) {
                $delisted[] = [
                    'name' => $name,
                    'url'  => $url,
                    'reason' => $result['reason'],
                ];
                Util::WriteLog('ios_app_store_check', "Delisted: {$name} | {$url} | {$result['reason']}");
            }
        }

        if (count($delisted) > 0) {
            $this->notifyDelisted($env, $delisted);
            $this->warn('已检测到 ' . count($delisted) . ' 个包被下架，已发送 Telegram 通知。');
            return 1;
        }

        $this->info('所有 iOS 包状态正常。');
        return 0;
    }

    /**
     * 检测单个 App 是否可访问（未下架）
     * @return array ['delisted' => bool, 'reason' => string]
     */
    protected function checkApp($url)
    {
        $ch = curl_init($url);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_TIMEOUT       => 15,
            CURLOPT_USERAGENT     => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
            CURLOPT_SSL_VERIFYPEER => true,
        ]);
        $body = curl_exec($ch);
        $code = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $error = curl_error($ch);
        curl_close($ch);

        if ($error) {
            return ['delisted' => true, 'reason' => "请求失败: {$error}"];
        }

        if ($code === 404) {
            return ['delisted' => true, 'reason' => 'HTTP 404'];
        }

        if ($code !== 200) {
            return ['delisted' => true, 'reason' => "HTTP {$code}"];
        }

        $bodyLower = mb_strtolower($body);
        foreach ($this->delistedKeywords as $keyword) {
            if (strpos($bodyLower, $keyword) !== false) {
                return ['delisted' => true, 'reason' => "页面包含下架提示: {$keyword}"];
            }
        }

        return ['delisted' => false, 'reason' => ''];
    }

    protected function notifyDelisted($env, array $delisted)
    {
        $lines = ["[{$env}] iOS App Store 下架检测告警"];
        foreach ($delisted as $item) {
            $lines[] = "• {$item['name']}";
            $lines[] = "  原因: {$item['reason']}";
            $lines[] = "  链接: {$item['url']}";
        }
        $message = implode("\n", $lines);

        try {
            TelegramBot::getDefault()->sendMsg($message);
        } catch (\Exception $e) {
            Util::WriteLog('ios_app_store_check', 'Telegram send error: ' . $e->getMessage());
            $this->error('Telegram 发送失败: ' . $e->getMessage());
        }
    }
}