location2025/lib/module/mine/mine_trial_membership_countdown_text.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:location/utils/common_expand.dart';

import '../../data/bean/member_status_info.dart';
import '../../resource/string.gen.dart';

class MineTrialMembershipCountdownText extends StatefulWidget {
  final MemberStatusInfo? memberStatusInfo;
  final VoidCallback? trialHasExpiredCallBack;

  const MineTrialMembershipCountdownText({
    super.key,
    this.memberStatusInfo,
    this.trialHasExpiredCallBack
  });

  @override
  State<MineTrialMembershipCountdownText> createState() => _MineTrialMembershipCountdownTextState();
}

class _MineTrialMembershipCountdownTextState extends State<MineTrialMembershipCountdownText> {
  Timer? _timer; // 使用可空类型，初始化为null
  String _countdownText = '';
  bool _isCountdownActive = false; // 标记倒计时是否活跃

  @override
  void initState() {
    super.initState();
    _initParameter();
  }

  @override
  void didUpdateWidget(covariant MineTrialMembershipCountdownText oldWidget) {
    super.didUpdateWidget(oldWidget);
    // 检查memberStatusInfo是否有变化
    if (widget.memberStatusInfo != oldWidget.memberStatusInfo) {

      DateTime endTime = DateTime.fromMillisecondsSinceEpoch(widget.memberStatusInfo!.trialEndTimestamp ?? 0);
      Duration remaining = endTime.difference(DateTime.now());
      if (!_isCountdownActive) {
        _resetTimer();
        _initParameter();
      }
    }
  }

  void _initParameter() {
    // 清除现有计时器
    _resetTimer();

    // 创建倒计时定时器
    if (widget.memberStatusInfo?.trialed == true) {
      // 计算剩余时间
      DateTime endTime = DateTime.fromMillisecondsSinceEpoch(widget.memberStatusInfo!.trialEndTimestamp ?? 0);
      Duration remaining = endTime.difference(DateTime.now());
      if (remaining.inSeconds > 0) {
        print("创建新的倒计时定时器");
        // 创建每秒更新一次的定时器
        _timer = Timer.periodic(const Duration(seconds: 1), (_) => _countdownisInProgress());
        _isCountdownActive = true;
        _updateTime();
        _countdownisInProgress();
      }  else {
        _countdownText = StringName.memberTrialHasExpired;
      }
    } else {
      // 将时间戳转换为DateTime（根据单位处理）
      _countdownText = StringName.memberExperienceVip;
    }
  }

  void _resetTimer() {
    // 取消现有计时器并重置状态
    _timer?.cancel();
    _timer = null;
    _isCountdownActive = false;
  }

  void _updateTime() {
    // 将时间戳转换为DateTime（根据单位处理）
    _countdownText = StringName.memberExperienceVip;

    if ((widget.memberStatusInfo?.trialed ?? false)) {
      DateTime endTime = DateTime.fromMillisecondsSinceEpoch(widget.memberStatusInfo!.trialEndTimestamp ?? 0);
      Duration remaining = endTime.difference(DateTime.now());
      ///正在使用
      if (remaining.inSeconds > 0) {
        if (!_isCountdownActive) {
          _countdownisInProgress();
        }
      } else {
        //已经使用完了
        _resetTimer();
        _countdownText = StringName.memberTrialHasExpired;
      }
    } else {
      // 未试用或其他状态
      _resetTimer();
    }
    setState(() {});
  }

  /// 正在倒计时
  void _countdownisInProgress() {
    // 检查时间戳是否为空
    _countdownText = StringName.memberExperienceVip;
    // 将时间戳转换为DateTime（根据单位处理）
    final timestamp = widget.memberStatusInfo!.trialEndTimestamp!;
    DateTime endTime = DateTime.fromMillisecondsSinceEpoch(timestamp);
    Duration remaining = endTime.difference(DateTime.now());
    //print("倒计时状态---${widget.memberStatusInfo!.trialEndTimestamp}---:${remaining.inSeconds}---${remaining.inSeconds <= 0}---:${DateTime.now()}---:${endTime}");

    if (widget.memberStatusInfo?.trialed == true) {
        if (remaining.inSeconds == 0) {
          _resetTimer(); // 取消计时器并重置状态
          _countdownText = StringName.memberTrialHasExpired;
          setState(() {});
          if (widget.trialHasExpiredCallBack != null) {
            widget.trialHasExpiredCallBack!();
          }
        } else {
          //已经使用完了
          _countdownText = _formatDuration(remaining);
          _countdownText = '${StringName.memberCountdownRemaining} ${_countdownText} ${StringName.memberCountdownExperienceTime}';
          if (mounted) {
            setState(() {});
          }
        }
    } else {
      _resetTimer();
      _countdownText = StringName.memberExperienceVip;
      if (mounted) {
        setState(() {});
      }
    }

  }

  String _formatDuration(Duration duration) {
    String twoDigits(int n) => n.toString().padLeft(2, '0');
    String hours = twoDigits(duration.inHours);
    String minutes = twoDigits(duration.inMinutes.remainder(60));
    String seconds = twoDigits(duration.inSeconds.remainder(60));
    return '$hours:$minutes:$seconds';
  }

  @override
  void dispose() {
    _resetTimer(); // 使用统一的方法清理计时器
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return  Text(
        _countdownText,
        style: TextStyle(
            fontSize: 13.sp,
            color: "#8A5F03".color,
            fontWeight: FontWeight.bold
        )
    );
  }
}