import 'dart:io' show Platform;

import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:flutter/material.dart';
import 'package:flutter_app_update/flutter_app_update.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:url_launcher/url_launcher.dart';

import '../data/update_api_client.dart';

enum UpgradeCheckSource { automatic, manual }

class UpdateService {
  static bool get isSupported =>
      !kIsWeb && (Platform.isAndroid || Platform.isIOS);

  static Future<void> showIfNeeded(
    BuildContext context,
    WidgetRef ref,
    UpgradeInfo info, {
    required UpgradeCheckSource source,
    VoidCallback? onLatest,
  }) async {
    final shouldShow = source == UpgradeCheckSource.automatic
        ? info.show == 1 && info.hasPublishedUpdate
        : info.hasPublishedUpdate;
    if (!shouldShow) {
      onLatest?.call();
      return;
    }
    final uri = Uri.tryParse(info.url);
    if (uri == null || uri.scheme != 'https' || !uri.hasAuthority) return;
    final force = info.force == 1;
    await showDialog<void>(
      context: context,
      barrierDismissible: !force,
      builder: (dialogContext) => PopScope(
        canPop: !force,
        child: AlertDialog(
          title: Text(
            '发现新版本${info.latestVersion.isEmpty ? '' : ' ${info.latestVersion}'}',
          ),
          content: Text(info.message.isEmpty ? '发现新版本，建议立即更新。' : info.message),
          actions: [
            if (!force)
              TextButton(
                onPressed: () => Navigator.pop(dialogContext),
                child: const Text('稍后再说'),
              ),
            FilledButton(
              onPressed: () async {
                Navigator.pop(dialogContext);
                final package = await PackageInfo.fromPlatform();
                try {
                  await ref
                      .read(updateApiClientProvider)
                      .reportClick(
                        buildId: info.versionCode.isEmpty
                            ? package.buildNumber
                            : info.versionCode,
                        source: source == UpgradeCheckSource.manual
                            ? 'manual'
                            : 'auto',
                      );
                } catch (_) {}
                await _startUpdate(uri);
              },
              child: Text(Platform.isIOS ? '前往更新' : '下载更新'),
            ),
          ],
        ),
      ),
    );
  }

  static Future<void> _startUpdate(Uri uri) async {
    if (Platform.isIOS) {
      await launchUrl(uri, mode: LaunchMode.externalApplication);
      return;
    }
    await AzhonAppUpdate.update(
      UpdateModel(
        uri.toString(),
        'jinzhi-update.apk',
        'ic_launcher',
        'https://apps.apple.com/search?term=%E9%87%91%E5%80%BC',
        showNotification: true,
        showBgdToast: false,
      ),
    );
  }
}