namespace Admin.NET.Plugin.ApprovalFlow.Service;

/// <summary>
/// 审批统计通用筛选入参
/// </summary>
public class FlowStatisticsInput
{
    /// <summary>
    /// 开始时间（按实例发起时间过滤；不传默认近 30 天）
    /// </summary>
    public DateTime? StartTime { get; set; }

    /// <summary>
    /// 结束时间
    /// </summary>
    public DateTime? EndTime { get; set; }

    /// <summary>
    /// 指定流程 Id 列表（空则全部）
    /// </summary>
    public List<long>? FlowIds { get; set; }

    /// <summary>
    /// 指定业务类型编码列表（空则全部）
    /// </summary>
    public List<string>? BizTypes { get; set; }

    /// <summary>
    /// 指定发起人所在组织 Id 列表（空则全部）
    /// </summary>
    public List<long>? InitiatorOrgIds { get; set; }
}

/// <summary>
/// 概览卡片 + 趋势图
/// </summary>
public class FlowOverviewOutput
{
    /// <summary>
    /// 发起总数
    /// </summary>
    public int TotalInstances { get; set; }

    /// <summary>
    /// 已完成实例数
    /// </summary>
    public int CompletedInstances { get; set; }

    /// <summary>
    /// 完成率（已完成 / 总数，0~1）
    /// </summary>
    public decimal CompletionRate { get; set; }

    /// <summary>
    /// 已完成实例的平均审批时长（小时）
    /// </summary>
    public decimal AvgDurationHours { get; set; }

    /// <summary>
    /// 超时任务数（实际耗时超过节点 timeoutHours）
    /// </summary>
    public int TimeoutTaskCount { get; set; }

    /// <summary>
    /// 超时率（超时任务 / 已处理任务，0~1）
    /// </summary>
    public decimal TimeoutRate { get; set; }

    /// <summary>
    /// 逐日趋势（发起量 / 完成量）
    /// </summary>
    public List<FlowTrendItem> DailyTrend { get; set; } = new();
}

/// <summary>
/// 逐日趋势项
/// </summary>
public class FlowTrendItem
{
    public string Date { get; set; } = "";
    public int StartedCount { get; set; }
    public int CompletedCount { get; set; }
}

/// <summary>
/// 表①：按流程维度统计
/// </summary>
public class FlowByFlowOutput
{
    public long FlowId { get; set; }
    public string? FlowCode { get; set; }
    public string FlowName { get; set; } = "";
    public string? BizType { get; set; }
    public string? BizTypeName { get; set; }

    public int TotalCount { get; set; }
    public int CompletedCount { get; set; }
    public int RunningCount { get; set; }
    public int RejectedCount { get; set; }

    /// <summary>
    /// 通过率 = 已完成 /（已完成 + 已拒绝）
    /// </summary>
    public decimal PassRate { get; set; }

    public decimal AvgDurationHours { get; set; }
    public decimal MaxDurationHours { get; set; }
}

/// <summary>
/// 表②：按节点维度统计（瓶颈分析核心表）
/// </summary>
public class FlowByNodeOutput
{
    public long FlowId { get; set; }
    public string? FlowCode { get; set; }
    public string FlowName { get; set; } = "";
    public string NodeId { get; set; } = "";
    public string? NodeName { get; set; }
    public string? NodeType { get; set; }

    /// <summary>
    /// 流经次数（该节点在已完成节点表中的记录数）
    /// </summary>
    public int FlowCount { get; set; }

    /// <summary>
    /// 平均停留时长（小时，仅 userTask 有意义）
    /// </summary>
    public decimal AvgDurationHours { get; set; }

    public decimal MaxDurationHours { get; set; }

    public int ApproveCount { get; set; }
    public int RejectCount { get; set; }
    public decimal RejectRate { get; set; }

    public int TimeoutCount { get; set; }

    /// <summary>
    /// 当前仍在 Pending 的任务数
    /// </summary>
    public int PendingCount { get; set; }

    /// <summary>
    /// 该节点历史上用时最长的审批人
    /// </summary>
    public string? LongestApproverName { get; set; }

    /// <summary>
    /// 该节点历史上用时最短的审批人
    /// </summary>
    public string? ShortestApproverName { get; set; }
}

/// <summary>
/// 表③：按审批人维度统计
/// </summary>
public class FlowByApproverOutput
{
    public long ApproverId { get; set; }
    public string ApproverName { get; set; } = "";
    public string? OrgName { get; set; }

    public int TotalAssigned { get; set; }
    public int CompletedCount { get; set; }
    public int PendingCount { get; set; }

    public decimal AvgProcessHours { get; set; }

    public int TimeoutCount { get; set; }

    public int ApproveCount { get; set; }
    public int RejectCount { get; set; }
    public int TransferCount { get; set; }
}

/// <summary>
/// Top N 最慢节点（柱图数据）
/// </summary>
public class FlowTopSlowNodeItem
{
    public string FlowName { get; set; } = "";
    public string NodeName { get; set; } = "";
    public decimal AvgDurationHours { get; set; }
    public int FlowCount { get; set; }
}