import 'package:date_format/date_format.dart';
import 'package:get/get.dart';

import 'pickers/time_picker/model/pduration.dart';

class DateTool {
  /// 获取当前年月日时分秒
  String getNowDateWithType(int type) {
    String dateStr = '';
    // 获取当前时间对象
    final DateTime now = DateTime.now();
    //获取当前时间的年
    final int year = now.year;
    //获取当前时间的月
    final int month = now.month;
    //获取当前时间的日
    final int day = now.day;
    //获取当前时间的时
    final int hour = now.hour;
    //获取当前时间的分
    final int minute = now.minute;
    //获取当前时间的秒
    final int millisecond = now.millisecond;

    switch (type) {
      case 1:
        // 年月日时分秒
        dateStr =
            '$year-${month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}:${millisecond.toString().padLeft(2, '0')}';
        break;
      case 2:
        // 年月日时分
        dateStr =
            '$year-${month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      case 3:
        // 年月日时整点
        dateStr =
            '$year-${month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:00';
        break;
      case 4:
        // 年月日
        dateStr =
            '$year-${month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')}';
        break;
      case 5:
        // 时分秒
        dateStr =
            '${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}:${millisecond.toString().padLeft(2, '0')}';
        break;
      case 6:
        // 时分
        dateStr =
            '${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      case 7:
        // 小时整点
        dateStr = '${hour.toString().padLeft(2, '0')}:00';
        break;
      default:
        dateStr =
            '$year-${month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}:${millisecond.toString().padLeft(2, '0')}';
        break;
    }
    return dateStr;
  }

  /// 将时间戳传化为年月日时分秒 (年.月.日 时:分)
  // String dateToYMDHNStringWithDot(String timestamp){
  //   int time = int.parse(timestamp);
  //   DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
  //   String appointmentDate = formatDate(nowDate, [yyyy,'.',mm,'.',dd,' ',HH,':',nn]);
  //   return appointmentDate;
  // }

  /// 根据传入的PDuration及时间类型获取时间字符串
  /// type 1: 年月日时分(2023-01-01 12:00) 2: 年月日(2023-01-01) 3: 时分(12:00)
  String getYMDHNDateString(PDuration p, int type) {
    final int? year = p.year == 0 ? DateTime.now().year : p.year;
    final int? month = p.month == 0 ? DateTime.now().month : p.month;
    final int? day = p.day == 0 ? DateTime.now().day : p.day;
    final int? hour = p.hour;
    final int? minute = p.minute;

    String dateStr = '';
    switch (type) {
      case 1:
        // 年月日时分(2023-01-01 12:48)
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      case 2:
        // 年月日(2023-01-01)
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')}';
        break;
      case 3:
        // 时分(12:05)
        dateStr =
            '${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      case 4:
        // 年月日时分(2023-01-01 12:00)整点
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:00';
        break;
      case 5:
        // 时分(12:00)整点
        dateStr = '${hour.toString().padLeft(2, '0')}:00';
        break;
      default:
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
    }
    return dateStr;
  }

  /// 根据传入的PDuration及时间类型获取时间字符串
  /// type 1: 年月日时分(2023-01-01 12:00) 2: 年月日(2023-01-01) 3: 时分(12:00)
  String getYMDHNDateStringWithDateTime(DateTime p, int type) {
    final int year = p.year == 0 ? DateTime.now().year : p.year;
    final int month = p.month == 0 ? DateTime.now().month : p.month;
    final int day = p.day == 0 ? DateTime.now().day : p.day;
    final int hour = p.hour;
    final int minute = p.minute;

    String dateStr = '';
    switch (type) {
      case 1:
        // 年月日时分(2023-01-01 12:48)
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      case 2:
        // 年月日(2023-01-01)
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')}';
        break;
      case 3:
        // 时分(12:05)
        dateStr =
            '${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
      default:
        dateStr =
            '$year-${month!.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')} ${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}';
        break;
    }
    return dateStr;
  }

  /// 日期转化为时间戳
  /// type 0: 12:00 1: 其他
  int dateToTimestamp(String dateStr, int type) {
    int timestamp = 0;
    if (type == 0) {
      final List<String> timeParts = dateStr.split(':');
      if (timeParts.length < 2) {
        return 0;
      }
      final DateTime now = DateTime.now();
      final DateTime dateTime = DateTime(now.year, now.month, now.day,
          int.parse(timeParts[0]), int.parse(timeParts[1]));
      timestamp = dateTime.millisecondsSinceEpoch;
    } else {
      final DateTime dateTime = DateTime.parse(dateStr);
      timestamp = dateTime.millisecondsSinceEpoch;
    }
    return timestamp;
  }

  /// 日期转化为时间戳
  /// type 0: 12:00 1: 其他
  DateTime? dateToDateTime(String dateStr, int type) {
    final int timestamp = dateToTimestamp(dateStr, type);
    if (timestamp == 0) {
      return null;
    } else {
      return DateTime.fromMillisecondsSinceEpoch(timestamp);
    }
  }

  /// 将时间戳传化为年月日 (年-月-日 时:分)
  String dateToYMDHNString(String? timestamp) {
    timestamp ??= '0';
    int time = int.parse(timestamp);
    if (timestamp.length == 10) {
      time = time * 1000;
    }
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
        formatDate(nowDate, <String>[yyyy, '-', mm, '-', dd, ' ', HH, ':', nn]);
    return appointmentDate;
  }

  /// 将时间戳传化为年月日 (年-月-日 时:分)
  String dateIntToYMDHNString(int? time) {
    time ??= 0;
    if (time.toString().length == 10) {
      time = time * 1000;
    }
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
        formatDate(nowDate, <String>[yyyy, '-', mm, '-', dd, ' ', HH, ':', nn]);
    return appointmentDate;
  }

  /// 将时间戳传化为年月日 (年-月-日)
  String dateToYMDString(String timestamp) {
    final int time = int.parse(timestamp);
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
        formatDate(nowDate, <String>[yyyy, '-', mm, '-', dd]);
    return appointmentDate;
  }

  /// 将时间戳传化为年月日 (时:分)
  String dateToHNString(String timestamp) {
    final int time = int.parse(timestamp);
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate = formatDate(nowDate, <String>[HH, ':', nn]);
    return appointmentDate;
  }

  /// 获取是否超过现在的时间
  bool compareTimeIsOvertime(int endTiem) {
    final DateTime dateTime =
        DateTime.fromMillisecondsSinceEpoch(endTiem); // 将时间戳转换为 DateTime
    final DateTime now = DateTime.now(); // 获取当前时间
    if (now.isAfter(dateTime)) {
      // 过期
      return true;
    } else {
      return false;
    }
  }

  /// 获取两个距离当前时间相差几天 1705132260000
  int compareTimeGetDaysFromNow(int endTiem) {
    final DateTime dateTime =
        DateTime.fromMillisecondsSinceEpoch(endTiem); // 将时间戳转换为 DateTime
    final DateTime now = DateTime.now(); // 获取当前时间
    final Duration difference = dateTime.difference(now); // 计算两个日期之间的差异
    final int days = difference.inDays; // 获取差异的天数
    return days;
  }

  // 根据循环的循环周期转化为对应的整型(Bit0 -- 6 置位分别代表周日 -- 周六)
  int accordingTheCycleIntoTheCorrespondingNumber(List weekDay) {
    String weekStr = '00000000';
    for (var day in weekDay) {
      final int index = day % 7; // 将周日的索引转换为 0
      weekStr =
          '${weekStr.substring(0, index)}1${weekStr.substring(index + 1)}';
    }
    // 倒序 weekStr
    weekStr = weekStr.split('').reversed.join('');
    final int weekRound = int.parse(weekStr, radix: 2);
    return weekRound;
  }
  /// 将时间戳传化为月
  String dateToMMString(String? timestamp) {
    timestamp ??= '0';
    int time = int.parse(timestamp);
    if (timestamp.length == 10) {
      time = time * 1000;
    }
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
    formatDate(nowDate, <String>[mm]);
    return appointmentDate;
  }

  /// 将时间戳传化为日
  String dateToDDString(String? timestamp) {
    timestamp ??= '0';
    int time = int.parse(timestamp);
    if (timestamp.length == 10) {
      time = time * 1000;
    }
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
    formatDate(nowDate, <String>[dd]);
    return appointmentDate;
  }

  /// 将时间戳传化为时分
  String dateToHnString(String? timestamp) {
    timestamp ??= '0';
    int time = int.parse(timestamp);
    if (timestamp.length == 10) {
      time = time * 1000;
    }
    final DateTime nowDate = DateTime.fromMillisecondsSinceEpoch(time);
    final String appointmentDate =
    formatDate(nowDate, <String>[HH, ':', nn]);
    return appointmentDate;
  }

}