using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.Data.DailyReport;
using AsbCloudApp.Data.DailyReport.Blocks;
using AsbCloudApp.Data.DailyReport.Blocks.Sign;
using AsbCloudApp.Data.DailyReport.Blocks.Subsystems;
using AsbCloudApp.Data.DailyReport.Blocks.TimeBalance;
using AsbCloudApp.Data.DailyReport.Blocks.WellOperation;
using AsbCloudApp.Services.DailyReport;
using ClosedXML.Excel;

namespace AsbCloudInfrastructure.Services.DailyReport;

public class DailyReportExportService : IDailyReportExportService
{
	private const int rowStartScheduleBlock = 20;
	private const int rowStartSubsystemBlock = 26;
	private const int rowStartFactWellOperationBlock = 39;
	private const int rowStartTimeBalanceBlock = 62;
	private const int rowStartProcessMapWellDrillingBlock = 68;

	private const int columnTimeBalanceDurationPlan = 3;
	private const int columnTimeBalanceDurationFact = 6;
	private const int columnTimeBalanceReasonDeviation = 8;
	private const int columnTimeBalanceDrillingDeviationPerSection = 10;
	private const int columnTimeBalanceDrillingDeviationPerDay = 11;

	private const int columnSheduleDriller = 3;
	private const int columnSheduleShiftStart = 7;
	private const int columnSheduleShiftEnd = 8;

	private const int columnSubsystemName = 2;
	private const int columnUseSubsystemPerDayUsedTimeHours = 3;
	private const int columnUseSubsystemPerDaySumDepthInterval = 4;
	private const int columnUseSubsystemPerDayKUsage = 5;

	private const int columnUseSubsystemPerWellUsedTimeHours = 6;
	private const int columnUseSubsystemPerWellSumDepthInterval = 7;
	private const int columnUseSubsystemPerWellKUsage = 8;

	private const int columnProcessMapWellDrillingBlockDrillingMode = 2;
	private const int columnProcessMapWellDrillingBlockWellBoreDepth = 3;
	private const int columnProcessMapWellDrillingBlockMechDrillingHours = 4;
	private const int columnProcessMapWellDrillingBlockRopPlan = 5;
	private const int columnProcessMapWellDrillingBlockRopFact = 6;

	private const int columnWellOperationCategory = 2;
	private const int columnWellOperationDurationHours = 4;

	private const string cellCustomer = "C2";
	private const string cellContractor = "C3";
	private const string cellDeposit = "C5";
	private const string cellCluster = "C6";
	private const string cellWellCaption = "C7";
	private const string cellWellType = "C8";
	private const string cellDate = "C12";
	private const string cellDepthStart = "C13";
	private const string cellDepthEnd = "D13";

	private const string cellTrajectoryBlockWellboreDepth = "B17";
	private const string cellTrajectoryBlockVerticalDepth = "C17";
	private const string cellTrajectoryBlockZenithAngle = "D17";
	private const string cellTrajectoryBlockAzimuthGeo = "E17";

	private const string cellTimeBalanceBlockSection = "C60";
	private const string cellTimeBalanceBlockWellDepthPlan = "C61";
	private const string cellSectionDrillingHours = "F77";
	private const string cellTimeBalanceBlockWellDepthFact = "F78";
	private const string cellTimeBalanceBlockWellOperationSlipsTimeCount = "F79";

	private const string cellSubsystemComment = "D35";
	private const string cellSubsystemTvgLagDays = "F80";
	private const string cellSubsystemMeasurementsPerDay = "F81";
	private const string cellSubsystemWellBore = "C9";
	private const string cellSubsystemTotalRopPlan = "E70";

	private const string cellSignDrillingMaster = "C85";
	private const string cellSignSupervisor = "C86";

	private readonly IDailyReportService dailyReportService;

	public DailyReportExportService(IDailyReportService dailyReportService)
	{
		this.dailyReportService = dailyReportService;
	}

	public async Task<(string FileName, Stream File)> ExportAsync(int idWell, DateTime dailyReportDateStart, CancellationToken cancellationToken)
	{
		var dailyReport = await dailyReportService.GetAsync(idWell, dailyReportDateStart, cancellationToken);

		var stream = await GenerateFileAsync(dailyReport, cancellationToken);

		var fileName = $"Суточный_рапорт_по_скважине_{dailyReport.WellCaption}_куст_{dailyReport.Cluster}_от_{dailyReport.Date:yy-MM-dd}.xlsx";

		return (fileName, stream);
	}

	private static async Task<Stream> GenerateFileAsync(DailyReportDto dailyReport, CancellationToken cancellationToken)
	{
		using var excelTemplateStream = await Assembly
			.GetExecutingAssembly()
			.GetTemplateCopyStreamAsync("DailyReportTemplate.xlsx", cancellationToken);

		using var workbook = new XLWorkbook(excelTemplateStream, XLEventTracking.Disabled);

		AddDailyReportToWorkBook(workbook, dailyReport);

		var memoryStream = new MemoryStream();
		workbook.SaveAs(memoryStream, new SaveOptions { });
		memoryStream.Seek(0, SeekOrigin.Begin);
		return memoryStream;
	}

	private static void AddDailyReportToWorkBook(IXLWorkbook workbook, DailyReportDto dailyReport)
	{
		const string sheetName = "Суточный отчёт";

		var sheet = workbook.Worksheets.FirstOrDefault(ws => ws.Name == sheetName)
					?? throw new FileFormatException($"Книга excel не содержит листа {sheetName}.");

		sheet.Cell(cellCustomer).Value = dailyReport.Customer;
		sheet.Cell(cellContractor).Value = dailyReport.Contractor;
		sheet.Cell(cellDeposit).Value = dailyReport.Deposit;
		sheet.Cell(cellCluster).Value = dailyReport.Cluster;
		sheet.Cell(cellWellCaption).Value = dailyReport.WellCaption;
		sheet.Cell(cellWellType).Value = dailyReport.WellType;
		sheet.Cell(cellDate).Value = dailyReport.Date;
		sheet.Cell(cellDepthStart).Value = dailyReport.DepthStart;
		sheet.Cell(cellDepthEnd).Value = dailyReport.DepthEnd;

		if (dailyReport.TimeBalanceBlock is not null)
			AddTimeBalanceBlockToSheet(sheet, dailyReport.TimeBalanceBlock);

		if (dailyReport.SubsystemBlock is not null)
			AddSubsystemBlockToSheet(sheet, dailyReport.SubsystemBlock);

		if (dailyReport.SignBlock is not null)
			AddSignBlockToSheet(sheet, dailyReport.SignBlock);

		AddTrajectoryBlockToSheet(sheet, dailyReport.TrajectoryBlock);
		AddScheduleBlockToSheet(sheet, dailyReport.ScheduleBlock);
		AddProcessMapWellDrillingBlockToSheet(sheet, dailyReport.ProcessMapWellDrillingBlock);
		AddFactWellOperationBlockToSheet(sheet, dailyReport.FactWellOperationBlock);
	}

	private static void AddTrajectoryBlockToSheet(IXLWorksheet sheet, TrajectoryBlockDto trajectoryBlock)
	{
		sheet.Cell(cellTrajectoryBlockWellboreDepth).Value = trajectoryBlock.WellboreDepth;
		sheet.Cell(cellTrajectoryBlockVerticalDepth).Value = trajectoryBlock.VerticalDepth;
		sheet.Cell(cellTrajectoryBlockZenithAngle).Value = trajectoryBlock.ZenithAngle;
		sheet.Cell(cellTrajectoryBlockAzimuthGeo).Value = trajectoryBlock.AzimuthGeo;
	}

	private static void AddTimeBalanceBlockToSheet(IXLWorksheet sheet, TimeBalanceBlockDto timeBalanceBlock)
	{
		var rowCurrent = rowStartTimeBalanceBlock;

		foreach (var wellOperation in timeBalanceBlock.WellOperations.OrderBy(w => w.IdWellOperation))
		{
			sheet.Cell(rowCurrent, columnTimeBalanceDurationPlan).Value = wellOperation.DurationHours.Plan;
			sheet.Cell(rowCurrent, columnTimeBalanceDurationFact).Value = wellOperation.DurationHours.Fact;
			sheet.Cell(rowCurrent, columnTimeBalanceReasonDeviation).Value = wellOperation.ReasonDeviation;
			sheet.Cell(rowCurrent, columnTimeBalanceDrillingDeviationPerSection).Value = wellOperation.DrillingDeviationPerSection;
			sheet.Cell(rowCurrent, columnTimeBalanceDrillingDeviationPerDay).Value = wellOperation.DrillingDeviationPerDay;

			rowCurrent++;
		}

		sheet.Cell(cellTimeBalanceBlockSection).Value = timeBalanceBlock.SectionName;
		sheet.Cell(cellTimeBalanceBlockWellDepthPlan).Value = timeBalanceBlock.WellDepth.Plan;
		sheet.Cell(cellTimeBalanceBlockWellDepthFact).Value = timeBalanceBlock.WellDepth.Fact;
		sheet.Cell(cellTimeBalanceBlockWellOperationSlipsTimeCount).Value = timeBalanceBlock.WellOperationSlipsTimeCount;
	}

	private static void AddSubsystemBlockToSheet(IXLWorksheet sheet, SubsystemBlockDto subsystemBlock)
	{
		var rowСurrent = rowStartSubsystemBlock;

		foreach (var subsystem in subsystemBlock.Subsystems)
		{
			sheet.Cell(rowСurrent, columnSubsystemName).Value = subsystem.Name;

			sheet.Cell(rowСurrent, columnUseSubsystemPerDayUsedTimeHours).Value = subsystem.UsagePerDay?.UsedTimeHours;
			sheet.Cell(rowСurrent, columnUseSubsystemPerDaySumDepthInterval).Value = subsystem.UsagePerDay?.SumDepthInterval;
			sheet.Cell(rowСurrent, columnUseSubsystemPerDayKUsage).Value = subsystem.UsagePerDay?.KUsage;

			sheet.Cell(rowСurrent, columnUseSubsystemPerWellUsedTimeHours).Value = subsystem.UsagePerWell?.UsedTimeHours;
			sheet.Cell(rowСurrent, columnUseSubsystemPerWellSumDepthInterval).Value = subsystem.UsagePerWell?.SumDepthInterval;
			sheet.Cell(rowСurrent, columnUseSubsystemPerWellKUsage).Value = subsystem.UsagePerWell?.KUsage;

			rowСurrent++;
		}

		sheet.Cell(cellSubsystemComment).Value = subsystemBlock.Comment;
		sheet.Cell(cellSubsystemTvgLagDays).Value = subsystemBlock.TvgLagDays;
		sheet.Cell(cellSubsystemMeasurementsPerDay).Value = subsystemBlock.MeasurementsPerDay;
		sheet.Cell(cellSubsystemWellBore).Value = subsystemBlock.WellBore;
		sheet.Cell(cellSubsystemTotalRopPlan).Value = subsystemBlock.TotalRopPlan;
	}

	private static void AddScheduleBlockToSheet(IXLWorksheet sheet, IEnumerable<ScheduleRecordDto> scheduleBlock)
	{
		var rowCurrent = rowStartScheduleBlock;

		foreach (var schedule in scheduleBlock.OrderBy(s => s.ShiftStart))
		{
			sheet.Cell(rowCurrent, columnSheduleDriller).Value = $"{schedule.Surname} {schedule.Name} {schedule.Patronymic}";
			sheet.Cell(rowCurrent, columnSheduleShiftStart).Value = schedule.ShiftStart;
			sheet.Cell(rowCurrent, columnSheduleShiftEnd).Value = schedule.ShiftEnd;

			rowCurrent++;
		}
	}

	private static void AddProcessMapWellDrillingBlockToSheet(IXLWorksheet sheet,
		IEnumerable<ProcessMapWellDrillingRecordDto> processMapWellDrillingBlock)
	{
		var rowCurrent = rowStartProcessMapWellDrillingBlock;

		foreach (var processMapWellDrilling in processMapWellDrillingBlock.OrderBy(p => p.DrillingMode))
		{
			sheet.Cell(rowCurrent, columnProcessMapWellDrillingBlockDrillingMode).Value = processMapWellDrilling.DrillingMode;
			sheet.Cell(rowCurrent, columnProcessMapWellDrillingBlockWellBoreDepth).Value = processMapWellDrilling.WellBoreDepth;
			sheet.Cell(rowCurrent, columnProcessMapWellDrillingBlockMechDrillingHours).Value = processMapWellDrilling.MechDrillingHours;
			sheet.Cell(rowCurrent, columnProcessMapWellDrillingBlockRopPlan).Value = processMapWellDrilling.Rop.Plan;
			sheet.Cell(rowCurrent, columnProcessMapWellDrillingBlockRopFact).Value = processMapWellDrilling.Rop.Fact;

			rowCurrent++;
		}
	}

	private static void AddFactWellOperationBlockToSheet(IXLWorksheet sheet, WellOperationBlockDto factWellOperationBlock)
	{
		sheet.Cell(cellSectionDrillingHours).Value = factWellOperationBlock.SectionDrillingHours;
		
		foreach (var factOperation in factWellOperationBlock.WellOperations.OrderBy(w => w.CategoryName))
		{
			sheet.Cell(rowStartFactWellOperationBlock, columnWellOperationCategory).Value = factOperation.CategoryName;
			sheet.Cell(rowStartFactWellOperationBlock, columnWellOperationDurationHours).Value = factOperation.DurationHours;
		}
	}

	private static void AddSignBlockToSheet(IXLWorksheet sheet, SignBlockDto signBlock)
	{
		sheet.Cell(cellSignDrillingMaster).Value = signBlock.DrillingMaster?.ToString();
		sheet.Cell(cellSignSupervisor).Value = signBlock.Supervisor?.ToString();
	}
}