import 'package:app/core/config/global.dart';
import 'package:app/core/event/event_bus.dart';
import 'package:app/core/event/global_event.dart';
import 'package:app/core/utils/system.dart';
import 'package:app/data/api/common_api.dart';
import 'package:package_info_plus/package_info_plus.dart';

///检查版本更新
void checkUpdate() async {
  PackageInfo packageInfo = await PackageInfo.fromPlatform();
  var versionRes = await getAppVersionApi(isIos: !isAndroid());
  //判断版本是不是小于最低版本，如果不是，不弹更新
  bool isMin = _compareVersions(packageInfo.version, versionRes.lowVersion) == -1;
  if (!isMin) {
    return;
  }
  Future.delayed(const Duration(seconds: 2), () async {
    EventBus().publish(VersionUpdateEvent(versionRes));
  });
}

///比较版本号
/// 1:表示当前版本号比传入的版本号高
/// -1：表示当前版本号比传入的版本号低
/// 0 表示版本号相同
int _compareVersions(String version1, String version2) {
  List<String> v1Parts = version1.split('.');
  List<String> v2Parts = version2.split('.');
  int length = v1Parts.length > v2Parts.length ? v1Parts.length : v2Parts.length;

  for (int i = 0; i < length; i++) {
    int v1Part = i < v1Parts.length ? int.tryParse(v1Parts[i]) ?? 0 : 0;
    int v2Part = i < v2Parts.length ? int.tryParse(v2Parts[i]) ?? 0 : 0;

    if (v1Part > v2Part) return 1;
    if (v1Part < v2Part) return -1;
  }
  return 0;
}