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){
    var dateStr = '';
    // 获取当前时间对象
    DateTime now = DateTime.now();
    //获取当前时间的年
    int year = now.year;
    //获取当前时间的月
    int month = now.month;
    //获取当前时间的日
    int day = now.day;
    //获取当前时间的时
    int hour = now.hour;
    //获取当前时间的分
    int minute = now.minute;
    //获取当前时间的秒
    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){
    var year = p.year == 0 ? DateTime.now().year : p.year;
    var month = p.month == 0 ? DateTime.now().month : p.month;
    var day = p.day == 0 ? DateTime.now().day : p.day;
    var hour = p.hour == 0 ? DateTime.now().hour : p.hour;
    var minute = p.minute == 0 ? DateTime.now().minute : p.minute;

    var 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;
  }

  /// 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){
      List<String> timeParts = dateStr.split(":");
      DateTime now = DateTime.now();
      DateTime dateTime = DateTime(now.year, now.month, now.day, int.parse(timeParts[0]), int.parse(timeParts[1]));
      timestamp = dateTime.millisecondsSinceEpoch;
    }else{
      DateTime dateTime = DateTime.parse(dateStr);
      timestamp = dateTime.millisecondsSinceEpoch;
    }
    return timestamp;
  }

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

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

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

  /// 获取是否超过现在的时间
  bool compareTimeIsOvertime(int endTiem){
    DateTime dateTime = DateTime.fromMillisecondsSinceEpoch(endTiem);  // 将时间戳转换为 DateTime
    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){
    DateTime dateTime = DateTime.fromMillisecondsSinceEpoch(endTiem);  // 将时间戳转换为 DateTime
    DateTime now = DateTime.now();  // 获取当前时间
    Duration difference = dateTime.difference(now);  // 计算两个日期之间的差异
    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){
    var weekStr = "00000000";
    for (var day in weekDay) {
      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('');
    int weekRound = int.parse(weekStr, radix: 2);
    return weekRound;
  }
}