using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IStation.Model.Monitor
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{
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/// <summary>
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/// 年段
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/// </summary>
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public class YearSlot : JsonModel<YearSlot>, ICronSlot
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{
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/// <summary>
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/// 是否从前一年开始
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/// </summary>
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public bool Pre { get; set; }
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/// <summary>
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/// 开始月数 1-12
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/// </summary>
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public int Start { get; set; } = 1;
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/// <summary>
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/// 结束月数 1-12
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/// </summary>
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public int End { get; set; } = 12;
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/// <summary>
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/// 验证
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/// </summary>
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public bool Verify()
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{
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if (this.Start < 1 || this.Start > 12)
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return false;
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if (this.End < 1 || this.End > 12)
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return false;
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var start = this.Start;
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var end = this.End;
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if (this.Pre)
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{
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end += 12;
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}
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if (end - start < 1)
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return false;
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if (end - start > 11)
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return false;
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return true;
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}
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/// <summary>
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/// 获取开始时间
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/// </summary>
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public DateTime GetStartTime(DateTime rhs)
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{
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var start = 1;
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if (Verify())
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{
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start = this.Start;
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if (Pre)
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start = start - 12;
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}
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var dt = rhs.AddYears(-1);
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dt = new DateTime(dt.Year, 1, 1);
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dt = dt.AddMonths(start).AddMonths(-1);
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dt = dt.Date;
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return dt;
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}
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/// <summary>
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/// 获取结束时间
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/// </summary>
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public DateTime GetEndTime(DateTime rhs)
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{
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var end = 12;
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if (Verify())
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end = this.End;
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var dt = rhs.AddYears(-1);
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dt = new DateTime(dt.Year, 1, 1);
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dt = dt.AddMonths(end);
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return dt;
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}
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}
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}
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