using AsbCloudApp.Data;
using AsbCloudApp.Data.DailyReport;
using AsbCloudDb.Model;
using ClosedXML.Excel;
using System.Collections.Generic;
using System.Linq;

namespace AsbCloudInfrastructure.Services.DailyReport.DailyReportBlocks
{
    /// <summary>
    /// Пострение баланса времени
    /// </summary>
    class TimeBalanceBlock : BlockAbstract
    {
        /// <summary>
        /// Начальная ячейка
        /// </summary>
        public override CellAddress AddressBlockBegin { get; }

        /// <summary>
        /// Конечная ячейка
        /// </summary>
        public override CellAddress AddressBlockEnd { get; }

        /// <summary>
        /// Ячейка с заголовком
        /// </summary>
        private CellAddress Title { get { return AddressBlockBegin + (1, 3); } }

        /// <summary>
        /// Статистика по операциям
        /// </summary>
        private Dictionary<int, double> OperationsStatistics { get; }

        /// <summary>
        /// Категории операций
        /// </summary>
        private IEnumerable<WellOperationCategoryDto> OperationCategories { get; }

        /// <summary>
        /// количество стобцов в таблице
        /// </summary>
        private readonly int CountColumns = 3;

        /// <summary>
        /// количество категорий операций
        /// </summary>
        private int OperationCategoriesCount { get { return OperationCategories.Count(); } }


        public TimeBalanceBlock(CellAddress addressBlockBegin, TimeBalanceDto blockDto, IEnumerable<WellOperationCategoryDto> operationCategories)
        {
            AddressBlockBegin = addressBlockBegin.Copy();

            OperationsStatistics = blockDto.OperationsStat;
            OperationCategories = operationCategories;

            var rowColumn = (CountColumns * 2) + (OperationCategoriesCount % CountColumns == 0 ? 0 : 2);
            var cellColumn = OperationCategoriesCount % CountColumns;
            AddressBlockEnd = AddressBlockBegin + (rowColumn, cellColumn);
        }

        public override void Draw(IXLWorksheet sheet)
        {

            sheet.Range(Title.RowNumber, Title.ColumnNumber, Title.RowNumber, Title.ColumnNumber + 1)
               .Merge()
              .SetValue("БАЛАНС ВРЕМЕНИ");

            var rowColumn = 2;
            var cellColumn = 1;
            var rowsCountInColumn = OperationCategoriesCount / CountColumns;
            if (OperationCategoriesCount % CountColumns != 0)
                rowsCountInColumn++;

            foreach (var operationCategory in OperationCategories)
            {
                sheet.Cell(AddressBlockBegin + (rowColumn, cellColumn))
                    ._SetValue(GetCaption(operationCategory.Id), true);
                sheet.Cell(AddressBlockBegin + (rowColumn, cellColumn + 1))
                    ._SetValue(GetValue(operationCategory.Id), true);

                if (rowColumn <= rowsCountInColumn)
                    rowColumn++;
                else
                {
                    rowColumn = 2;
                    cellColumn = cellColumn + 2;
                }
            }
        }

        private string GetValue(int categoryId)
        {
            if (OperationsStatistics.TryGetValue(categoryId, out double duration))
                return $"{duration}";
            return "0";
        }

        private string GetCaption(int categoryId)
        {
            var caption = OperationCategories.FirstOrDefault(o => o.Id == categoryId)?.Name ?? string.Empty;
            return caption;
        }
    }
}