using BLL;
using MiniExcelLibs;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace FineUIPro.Web.HJGL.WeldingReport
{
    public partial class PipePrefabricationSummary : PageBase
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                UnitWorkService.InitUnitWorkDropDownList(drpUnitWork, CurrUser.LoginProjectId, false);
                DateTime today = DateTime.Today;
                int daysSinceMonday = ((int)today.DayOfWeek + 6) % 7;
                dpReportDate.SelectedDate = today;
                dpStartDate.SelectedDate = today.AddDays(-daysSinceMonday);
                dpEndDate.SelectedDate = today.AddDays(6 - daysSinceMonday);
                BindGrid();
            }
        }

        protected void btnQuery_Click(object sender, EventArgs e)
        {
            BindGrid();
        }

        protected void btnExport_Click(object sender, EventArgs e)
        {
            DateTime reportDate;
            DateTime startDate;
            DateTime endDate;
            if (!TryGetFilterDates(out reportDate, out startDate, out endDate))
            {
                return;
            }

            string templatePath = Path.Combine(Funs.RootPath, "File", "Excel", "DataOut", "管道预制汇总模板.xlsx");
            if (!File.Exists(templatePath))
            {
                ShowNotify("未找到管道预制汇总导出模板！", MessageBoxIcon.Warning);
                return;
            }

            List<PipePrefabricationSummaryItem> rows = GetSummary(reportDate, startDate, endDate);
            var value = CreateExportValue(rows, reportDate);
            string fileName = string.Format(
                "管道预制汇总_{0:yyyyMMdd}_{1:yyyyMMdd}-{2:yyyyMMdd}.xlsx",
                reportDate,
                startDate,
                endDate);
            string filePath = Path.Combine(Funs.RootPath, "File", "Excel", "Temp", Guid.NewGuid().ToString("N") + ".xlsx");
            Directory.CreateDirectory(Path.GetDirectoryName(filePath));
            MiniExcel.SaveAsByTemplate(filePath, templatePath, value);
            DownloadExcel(filePath, fileName);
        }

        private void BindGrid()
        {
            DateTime reportDate;
            DateTime startDate;
            DateTime endDate;
            if (!TryGetFilterDates(out reportDate, out startDate, out endDate))
            {
                return;
            }

            List<PipePrefabricationSummaryItem> rows = GetSummary(reportDate, startDate, endDate);
            Grid1.RecordCount = rows.Count;
            Grid1.DataSource = rows;
            Grid1.DataBind();
            BindSummary(rows);
        }

        private List<PipePrefabricationSummaryItem> GetSummary(
            DateTime reportDate,
            DateTime startDate,
            DateTime endDate)
        {
            string[] unitWorkIds = drpUnitWork.SelectedValueArray
                .Where(x => !string.IsNullOrWhiteSpace(x) && x != Const._Null)
                .ToArray();
            return PipePrefabricationSummaryService.GetSummary(
                CurrUser.LoginProjectId,
                unitWorkIds,
                startDate,
                endDate,
                reportDate);
        }

        private bool TryGetFilterDates(
            out DateTime reportDate,
            out DateTime startDate,
            out DateTime endDate)
        {
            reportDate = DateTime.MinValue;
            startDate = DateTime.MinValue;
            endDate = DateTime.MinValue;
            if (!dpReportDate.SelectedDate.HasValue)
            {
                ShowNotify("请选择报表日期！", MessageBoxIcon.Warning);
                return false;
            }

            if (!dpStartDate.SelectedDate.HasValue || !dpEndDate.SelectedDate.HasValue)
            {
                ShowNotify("请选择完整的日期范围！", MessageBoxIcon.Warning);
                return false;
            }

            reportDate = dpReportDate.SelectedDate.Value.Date;
            startDate = dpStartDate.SelectedDate.Value.Date;
            endDate = dpEndDate.SelectedDate.Value.Date;
            if (startDate > endDate)
            {
                ShowNotify("开始日期不能晚于结束日期！", MessageBoxIcon.Warning);
                return false;
            }

            return true;
        }

        private void BindSummary(ICollection<PipePrefabricationSummaryItem> rows)
        {
            decimal totalDrawing = rows.Sum(x => x.TotalDrawingQuantity);
            decimal completed = rows.Sum(x => x.CompletedQuantity);
            JObject summary = new JObject
            {
                { "UnitCode", string.Empty },
                { "UnitWorkCode", "Total" },
                { "TotalDrawingQuantity", PipePrefabricationSummaryItem.FormatQuantity(totalDrawing) },
                { "IsoDrawingQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.IsoDrawingQuantity)) },
                { "WorkFrontQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.WorkFrontQuantity)) },
                { "CompletedQuantity", PipePrefabricationSummaryItem.FormatQuantity(completed) },
                { "QuantityCompleteRate", GetCompleteRate(completed, totalDrawing) },
                { "DailyQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.DailyQuantity)) },
                { "PreviousDayCumulativeQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.PreviousDayCumulativeQuantity)) },
                { "WeeklyQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.WeeklyQuantity)) },
                { "LastWeekCumulativeQuantity", PipePrefabricationSummaryItem.FormatQuantity(rows.Sum(x => x.LastWeekCumulativeQuantity)) },
                { "Note", string.Empty }
            };
            Grid1.SummaryData = summary;
        }

        private static string GetCompleteRate(decimal completed, decimal totalDrawing)
        {
            return totalDrawing <= 0M ? "0.00%" : (completed * 100M / totalDrawing).ToString("0.00") + "%";
        }

        private static Dictionary<string, object> CreateExportValue(
            ICollection<PipePrefabricationSummaryItem> rows,
            DateTime reportDate)
        {
            decimal totalDrawing = rows.Sum(x => x.TotalDrawingQuantity);
            decimal completed = rows.Sum(x => x.CompletedQuantity);
            // 只向模板上半部分的数据占位符传值；下方“陕西化建人力统计表”保持模板原样空白。
            return new Dictionary<string, object>
            {
                { "ReportDate", reportDate.ToString("yyyy-MM-dd") },
                { "Data", rows },
                // MiniExcel 1.31.3 的普通对象不支持模板中的嵌套属性，合计值使用扁平占位符。
                { "TotalUnitCode", string.Empty },
                { "TotalUnitWorkCode", "Total" },
                { "TotalDrawingQuantity", totalDrawing },
                { "TotalIsoDrawingQuantity", rows.Sum(x => x.IsoDrawingQuantity) },
                { "TotalWorkFrontQuantity", rows.Sum(x => x.WorkFrontQuantity) },
                { "TotalCompletedQuantity", completed },
                { "TotalQuantityCompleteRate", GetCompleteRate(completed, totalDrawing) },
                { "TotalDailyQuantity", rows.Sum(x => x.DailyQuantity) },
                { "TotalPreviousDayCumulativeQuantity", rows.Sum(x => x.PreviousDayCumulativeQuantity) },
                { "TotalWeeklyQuantity", rows.Sum(x => x.WeeklyQuantity) },
                { "TotalLastWeekCumulativeQuantity", rows.Sum(x => x.LastWeekCumulativeQuantity) },
                { "TotalNote", string.Empty }
            };
        }

        private void DownloadExcel(string filePath, string fileName)
        {
            FileInfo file = new FileInfo(filePath);
            Response.Clear();
            Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
            Response.AddHeader("Content-Length", file.Length.ToString());
            Response.TransmitFile(filePath, 0, file.Length);
            Response.Flush();
            File.Delete(filePath);
            Response.End();
        }
    }
}