using Newtonsoft.Json;
using System;
using System.Collections.Generic;

namespace _29WxOrderWpf.Ctrls.Statistics.Models
{
	/// <summary>
	/// 店铺营收统计 - 查询参数
	/// </summary>
	public class ShopRevenueStatisticsQuery
	{
		/// <summary>开始时间</summary>
		public DateTime StartDate { get; set; }

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

		/// <summary>选中的店铺 app_key 列表；空/Null 表示全部店铺</summary>
		public List<string> ShopKeys { get; set; }
	}

	/// <summary>
	/// 店铺营收统计 - 接口返回的原始明细行。
	/// 与后端 WXOrderAmountInfo 保持一致（camelCase JSON）：
	///   shopName, createTime, orderId, status, productPrice, orderPrice, purchasePrice, freight,
	///   predictCommissionFee, commissionAmount, discountedPrice, profit, purchaseStatus,
	///   outAmount, refundStatus, refundStatusString, refundAmount, externalProcurement
	/// 金额字段单位均为分（显示时需除以 100）。
	/// </summary>
	public class ShopRevenueStatisticsRow
	{
		/// <summary>
		/// 店铺名称
		/// </summary>
		[JsonProperty("shop_name")]
		public string ShopName { get; set; }

		/// <summary>
		/// 下单时间（秒级时间戳）
		/// </summary>
		[JsonProperty("create_time")]
		[JsonConverter(typeof(UnixDateTimeConverter))]
		public DateTime CreateTime { get; set; }

		/// <summary>
		/// 订单号
		/// </summary>
		[JsonProperty("order_id")]
		public string OrderId { get; set; }

		/// <summary>
		/// 订单状态
		/// </summary>
		[JsonProperty("status")]
		public int Status { get; set; }

		/// <summary>
		/// 商品总价（分）
		/// </summary>
		[JsonProperty("product_price")]
		public int ProductPrice { get; set; }

		/// <summary>
		/// 订单金额（分）
		/// </summary>
		[JsonProperty("order_price")]
		public int OrderPrice { get; set; }

		/// <summary>
		/// 采购价（分）
		/// </summary>
		[JsonProperty("purchase_price")]
		public int PurchasePrice { get; set; }

		/// <summary>
		/// 运费（分）
		/// </summary>
		[JsonProperty("freight")]
		public int Freight { get; set; }

		/// <summary>
		/// 平台服务费（预计技术服务费，分）
		/// </summary>
		[JsonProperty("predict_commission_fee")]
		public int PredictCommissionFee { get; set; }

		/// <summary>
		/// 达人佣金（分）
		/// </summary>
		[JsonProperty("commission_amount")]
		public int CommissionAmount { get; set; }

		/// <summary>
		/// 优惠金额（分）
		/// </summary>
		[JsonProperty("discounted_price")]
		public int DiscountedPrice { get; set; }

		/// <summary>
		/// 利润（分）
		/// </summary>
		[JsonProperty("profit")]
		public int Profit { get; set; }

		/// <summary>
		/// 采购状态
		/// </summary>
		[JsonProperty("purchase_status")]
		public int PurchaseStatus { get; set; }

		/// <summary>
		/// 外采金额（分），out_amount为空或0时从中转仓订单表补全
		/// </summary>
		[JsonProperty("out_amount")]
		public int OutAmount { get; set; }

		/// <summary>
		/// 售后状态（订单明细 refund_status）
		/// </summary>
		[JsonProperty("refund_status")]
		public int RefundStatus { get; set; }

		/// <summary>
		/// 售后状态（退款单 status）
		/// </summary>
		[JsonProperty("refund_status_string")]
		public string RefundStatusString { get; set; }

		/// <summary>
		/// 售后退款金额（分）
		/// </summary>
		[JsonProperty("refund_amount")]
		public int RefundAmount { get; set; }

		/// <summary>
		/// 是否外采：0=未从中转仓订单表查到，1=查到
		/// </summary>
		[JsonProperty("external_procurement")]
		public int ExternalProcurement { get; set; }


		/// <summary>
		/// 买手退款金额
		/// </summary>
		[JsonProperty("buyer_refund_amount")]
		public int BuyerRefundAmount { get; set; }

		/// <summary>
		/// 买手退款状态
		/// </summary>
		[JsonProperty("buyer_refund_status")]
		public string BuyerRefundStatus { get; set; }

	}

	/// <summary>
	/// 顶部汇总卡片数据（金额单位：元）
	/// </summary>
	public class ShopRevenueSummary
	{
		/// <summary>销售额（最终有效销售额）</summary>
		public decimal SalesAmount { get; set; }
		/// <summary>有效订单数（已扣除退款订单）</summary>
		public int ValidOrderCount { get; set; }

		/// <summary>利润（实际利润）</summary>
		public decimal Profit { get; set; }

		/// <summary>退款金额（统计期间退款）</summary>
		public decimal RefundAmount { get; set; }

		/// <summary>退款订单数</summary>
		public int RefundOrderCount { get; set; }

		/// <summary>平台服务费总额（元）</summary>
		public decimal PlatformFeeTotal { get; set; }

		/// <summary>达人佣金（元）</summary>
		public decimal Commission { get; set; }

		/// <summary>客单价（平均每单金额）</summary>
		public decimal AvgOrderAmount { get; set; }

		/// <summary>退款率（退款订单占比，百分数，如 2.31 表示 2.31%）</summary>
		public decimal RefundRate { get; set; }

		/// <summary>平均利润率（利润 / 采购金额，百分数，如 12.34 表示 12.34%）</summary>
		public decimal AverageProfitRate { get; set; }
		/// <summary>买手号付款金额（采购金额，元）</summary>
		public decimal BuyerPaymentAmount { get; set; }

		/// <summary>买手号退款金额（采购退款金额，元）</summary>
		public decimal BuyerRefundAmount { get; set; }
		/// <summary>买手号退款成功金额（采购退款金额，元）</summary>
		public decimal BuyerRefundSuccessedAmount { get; set; }
		/// <summary>买手号剩余退款金额（尚未成功退款的金额，元）</summary>
		public decimal BuyerRefundRemainingAmount => BuyerRefundAmount - BuyerRefundSuccessedAmount;
	}

	/// <summary>
	/// 销售趋势数据点（金额单位：元）
	/// </summary>
	public class RevenueTrendPoint
	{
		/// <summary>日期</summary>
		public DateTime Date { get; set; }

		/// <summary>日期文本（MM-dd）</summary>
		public string DateText { get { return Date.ToString("MM-dd"); } }

		/// <summary>当日销售额（元）</summary>
		public decimal SalesAmount { get; set; }

		/// <summary>当日有效订单数</summary>
		public int OrderCount { get; set; }
	}

	/// <summary>
	/// 店铺销售占比数据（金额单位：元）
	/// </summary>
	public class ShopSalesProportionItem
	{
		/// <summary>店铺名称</summary>
		public string ShopName { get; set; }

		/// <summary>销售额（元）</summary>
		public decimal SalesAmount { get; set; }

		/// <summary>占比（0~100）</summary>
		public double Percentage { get; set; }
	}

	/// <summary>
	/// 店铺统计表格行（金额单位：元）
	/// </summary>
	public class ShopStatisticsItem
	{
		/// <summary>店铺名称</summary>
		public string ShopName { get; set; }

		/// <summary>订单数</summary>
		public int OrderCount { get; set; }

		/// <summary>销售额（元）</summary>
		public decimal SalesAmount { get; set; }
		/// <summary>采购金额（元）</summary>
		public decimal BuyerPaymentAmount { get; set; }
		/// <summary>利润（元）</summary>
		public decimal Profit { get; set; }

		/// <summary>退款金额（元）</summary>
		public decimal RefundAmount { get; set; }

		/// <summary>平台服务费总额（元）</summary>
		public decimal PlatformFeeTotal { get; set; }

		/// <summary>达人佣金（元）</summary>
		public decimal Commission { get; set; }

		/// <summary>客单价（元）</summary>
		public decimal AvgOrderAmount { get; set; }

		/// <summary>平均利润率（利润 / 采购金额，百分数，如 12.34 表示 12.34%）</summary>
		public decimal AverageProfitRate { get; set; }
	}

	/// <summary>
	/// 统计周期类型：天 / 周 / 月
	/// </summary>
	public enum PeriodStatisticType
	{
		/// <summary>按天统计</summary>
		Day = 0,

		/// <summary>按周统计（周一起始）</summary>
		Week = 1,

		/// <summary>按月统计</summary>
		Month = 2
	}

	/// <summary>
	/// 天/周/月周期统计表格行（金额单位：元）。
	/// 按所选店铺（或全部店铺）统计：天统计每天一行；周统计每周一行；月统计每月一行。
	/// </summary>
	public class ShopPeriodStatisticsItem
	{
		/// <summary>周期开始日期（用于排序）</summary>
		public DateTime PeriodStart { get; set; }

		/// <summary>周期显示文本（天：yyyy-MM-dd；周：yyyy-MM-dd ~ yyyy-MM-dd；月：yyyy-MM）</summary>
		public string Period { get; set; }

		/// <summary>订单数</summary>
		public int OrderCount { get; set; }

		/// <summary>销售额（元）</summary>
		public decimal SalesAmount { get; set; }
		/// <summary>买手号付款金额（采购金额，元）</summary>
		public decimal BuyerPaymentAmount { get; set; }

		/// <summary>利润（元）</summary>
		public decimal Profit { get; set; }

		/// <summary>退款金额（元）</summary>
		public decimal RefundAmount { get; set; }

		/// <summary>平台服务费总额（元）</summary>
		public decimal PlatformFeeTotal { get; set; }

		/// <summary>达人佣金（元）</summary>
		public decimal Commission { get; set; }

		/// <summary>平均利润率（利润 / 采购金额，百分数，如 12.34 表示 12.34%）</summary>
		public decimal AverageProfitRate { get; set; }

		/// <summary>客户数</summary>
		public int CustomerCount { get; set; }

		/// <summary>客单价（元）</summary>
		public decimal AvgOrderAmount { get; set; }
	}

	/// <summary>
	/// 店铺下拉选项
	/// </summary>
	public class ShopOption
	{
		/// <summary>店铺 app_key（A.app_key）</summary>
		public string AppKey { get; set; }
		public string ShopId { get; set; }
		/// <summary>店铺名称</summary>
		public string ShopName { get; set; }
	}

	/// <summary>
	/// 时间范围下拉选项
	/// </summary>
	public class TimeRangeOption
	{
		/// <summary>显示文本（如：今天、昨天、本周、本月、最近10天、自定义）</summary>
		public string Text { get; set; }

		/// <summary>值（today / yesterday / week / month / last10 / custom）</summary>
		public string Value { get; set; }
	}

	class UnixDateTimeConverter : JsonConverter
	{
		public override bool CanConvert(Type objectType)
		{
			return objectType == typeof(DateTime);
		}

		public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
		{
			// 读取数值（支持 long 和 int 类型）
			if (reader.TokenType == JsonToken.Integer)
			{
				long milliseconds = (long)reader.Value;
				// Unix 纪元：1970-01-01 UTC
				//DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
				DateTime epoch = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
				if (milliseconds.ToString().Length == 13)
				{
					return epoch.AddMilliseconds(milliseconds);
				}
				return epoch.AddSeconds(milliseconds);


			}
			// 如果传入的是字符串（如 "1700000000000"），也支持
			else if (reader.TokenType == JsonToken.String)
			{
				if (long.TryParse((string)reader.Value, out long milliseconds))
				{
					//DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
					DateTime epoch = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
					if (milliseconds.ToString().Length == 13)
					{
						return epoch.AddMilliseconds(milliseconds);
					}
					return epoch.AddSeconds(milliseconds);
				}
			}
			throw new JsonSerializationException($"无法将 {reader.Value} 转换为 DateTime");
		}


		public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
		{
			// 序列化时转回时间戳
			//DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
			DateTime epoch = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
			long milliseconds = (long)((DateTime)value - epoch).TotalMilliseconds;
			writer.WriteValue(milliseconds);
		}
	}
}