// THIS FILE IS PART OF ChineseCalendar PROJECT
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// THE ChineseCalendar PROJECT IS AN OPENSOURCE LIBRARY LICENSED UNDER THE MIT License.
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// COPYRIGHT (C) lpz. ALL RIGHTS RESERVED.
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// GITEE: https://gitee.com/lipz89/ChineseCalendar
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using System;
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using System.Collections.Generic;
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namespace ChineseCalendar
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{
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/// <summary>
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/// 公历节假日
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/// </summary>
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public class GregorianFestival : LoopFestival
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{
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private GregorianFestival() { }
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/// <summary> 节日的第一个日期 </summary>
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public DateTime? First { get; protected set; }
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private static readonly Dictionary<int, int> monthDays = new Dictionary<int, int> {
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{ 1,31},{ 2,29},{ 3,31},{ 4,30},{ 5,31},{ 6,30},{ 7,31},{ 8,31},{ 9,30},{ 10,31},{ 11,30},{ 12,31},
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};
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/// <summary>
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/// 定义一个公历节日
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/// </summary>
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/// <param name="name">节日名称</param>
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/// <param name="month">月份</param>
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/// <param name="day">日期</param>
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/// <param name="firstYear">第一个节日的年份，0表示无永恒</param>
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/// <param name="description">节日描述</param>
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/// <exception cref="ArgumentNullException">没有名称</exception>
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/// <exception cref="ArgumentOutOfRangeException">日期超出范围</exception>
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public GregorianFestival(string name, int month, int day, int firstYear = 0, string description = null)
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{
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if (string.IsNullOrWhiteSpace(name))
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{
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throw new ArgumentNullException(nameof(name));
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}
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if (month < 1 || month > 12)
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{
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throw new ArgumentOutOfRangeException(nameof(month), "[1,12]", "月份超出范围");
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}
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var maxDays = monthDays[month];
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if (day < 1 || day > maxDays)
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{
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throw new ArgumentOutOfRangeException(nameof(day), $"[1,{maxDays}]", "日期超出范围");
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}
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this.Name = name;
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this.Month = month;
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this.Day = day;
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this.FirstYear = firstYear;
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this.Description = description;
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if (this.FirstYear.HasValue)
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{
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this.First = new DateTime(firstYear, month, day);
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}
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}
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/// <summary> 元旦 </summary>
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public static readonly GregorianFestival NewYearsDay = new GregorianFestival
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{
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Name = "元旦",
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Description = "1月1日",
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Month = 1,
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Day = 1,
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};
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/// <summary> 植树节 </summary>
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public static readonly GregorianFestival ArborDay = new GregorianFestival
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{
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Name = "植树节",
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Description = "3月12日",
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Month = 3,
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Day = 12,
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FirstYear = 1979
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};
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/// <summary> 清明 </summary>
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public static readonly GregorianFestival TheTombWeepingDay = new GregorianFestival
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{
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Name = "清明",
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Description = "4月5日",
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Month = 4,
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Day = 5,
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};
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/// <summary> 劳动节 </summary>
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public static readonly GregorianFestival InternationalWorkersDay = new GregorianFestival
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{
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Name = "劳动节",
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Description = "5月1日",
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Month = 5,
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Day = 1,
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FirstYear = 1890
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};
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/// <summary> 国庆节 </summary>
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public static readonly GregorianFestival TheNationalDay = new GregorianFestival
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{
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Name = "国庆节",
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Description = "10月1日",
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Month = 10,
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Day = 1,
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FirstYear = 1949
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};
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/// <inheritdoc/>
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public override bool IsThisFestival(DateTime date)
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{
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return date.Month == this.Month && date.Day == this.Day;
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}
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}
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}
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