using YLErp.BLL;
using YLErp.Office.ExcelModule;

namespace YLErp.Modules.MarginModule
{
    /// <summary>
    /// 预付金计算参数导出服务
    /// </summary>
    public class MarginParamsExportService : YLBaseService
    {
        public MarginParamsExportService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        /// <summary>
        /// 品种数据导出
        /// </summary>
        public byte[] VarietyExport()
        {
            var query = from vh in DbContext.VarietyHisData
                        join v in DbContext.variety on vh.VarietyId equals v.id
                        orderby v.VarietyCode, vh.ValueDate
                        select new
                        {
                            v.VarietyCode,
                            vh.ValueDate,
                            vh.ValueType,
                            vh.Value
                        };

            var hisdatas = query.ToArray();
            var MarginRateHis = new List<ExportModel>(100);
            var VolatilityRateHis = new List<ExportModel>(100);
            var UpDownLimitHis = new List<ExportModel>(100);
            var sysData = valuedateBLL.ValueDate;
            var curDic = new Dictionary<string, ExportModel>(100);

            foreach (var item in hisdatas)
            {
                var model = new ExportModel
                {
                    Code = item.VarietyCode,
                    Date = item.ValueDate.ToString("yyyy-MM-dd"),
                    Value = item.Value.ToString("P2")
                };
                if (item.ValueDate <= sysData)
                {
                    var key = item.ValueType + "-" + model.Code;
                    if (!curDic.TryGetValue(key, out var model2) || string.Compare(model.Date, model2.Date) > 0)
                    {
                        curDic[key] = model;
                    }
                }
                switch (item.ValueType)
                {
                    case "MarginRate":
                        MarginRateHis.Add(model);
                        break;
                    case "VolatilityRate":
                        VolatilityRateHis.Add(model);
                        break;
                    case "UpDownLimit":
                        UpDownLimitHis.Add(model);
                        break;
                }
            }

            foreach (var item in curDic.Values)
            {
                item.IsCurrent = "　"; //全角空格
            }

            var tplFilePath = OtcAppContext.MapPath("/App_Docs/导出模板/预付金参数导出模板.xlsx");

            if (!File.Exists(tplFilePath))
            {
                throw new ServiceException("导出模板文件不存在:/App_Docs/导出模板/预付金参数导出模板.xlsx");
            }

            var varb = new { CodeType = "品种代码", MarginRateHis, VolatilityRateHis, UpDownLimitHis };
            return ExcelGenerator.UseTemplateGenerator(tplFilePath).AddVariable(varb).GenerateBytes();
        }

        /// <summary>
        /// 标的数据导出
        /// </summary>
        public byte[] UnderlyingExport()
        {
            var query = from uh in DbContext.UnderlyingHisData
                        join um in DbContext.underlying_manager on uh.UnderlyingCode equals um.UnderlyingCode
                        orderby um.UnderlyingInstrumentType, um.UnderlyingCode, uh.ValueDate
                        select new
                        {
                            uh.UnderlyingCode,
                            uh.ValueDate,
                            uh.ValueType,
                            uh.ValueFlag,
                            uh.Value
                        };

            var hisdatas = query.ToArray();
            var MarginRateHis = new List<ExportModel>(100);
            var VolatilityRateHis = new List<ExportModel>(100);
            var UpDownLimitHis = new List<ExportModel>(100);
            var sysData = valuedateBLL.ValueDate;
            var curDic = new Dictionary<string, ExportModel>(100);

            foreach (var item in hisdatas)
            {
                var model = new ExportModel
                {
                    Code = item.UnderlyingCode,
                    Date = item.ValueDate.ToString("yyyy-MM-dd"),
                    Value = item.ValueFlag == "F" ? item.Value.ToString("F2") : item.Value.ToString("P2")
                };

                if (item.ValueDate <= sysData)
                {
                    var key = item.ValueType + "-" + model.Code;
                    if (!curDic.TryGetValue(key, out var model2) || string.Compare(model.Date, model2.Date) > 0)
                    {
                        curDic[key] = model;
                    }
                }

                switch (item.ValueType)
                {
                    case "MarginRate":
                        MarginRateHis.Add(model);
                        break;
                    case "VolatilityRate":
                        VolatilityRateHis.Add(model);
                        break;
                    case "UpDownLimit":
                        UpDownLimitHis.Add(model);
                        break;
                }
            }

            foreach (var item in curDic.Values)
            {
                item.IsCurrent = "　"; //全角空格
            }

            var tplFilePath = OtcAppContext.MapPath("/App_Docs/导出模板/预付金参数导出模板.xlsx");

            if (!File.Exists(tplFilePath))
            {
                throw new ServiceException("导出模板文件不存在:/App_Docs/导出模板/预付金参数导出模板.xlsx");
            }

            var varb = new { CodeType = "标的代码", MarginRateHis, VolatilityRateHis, UpDownLimitHis };
            return ExcelGenerator.UseTemplateGenerator(tplFilePath).AddVariable(varb).GenerateBytes();
        }

        class ExportModel
        {
            public string Code { get; set; }

            public string Date { get; set; }

            public string Value { get; set; }

            public string IsCurrent { get; set; }

            public override string ToString()
            {
                return Code + "--" + Date;
            }
        }
    }
}