using SchoolBusinessLogics.OfficePackage.HelperEnums;
using SchoolBusinessLogics.OfficePackage.HelperModels;
using SchoolContracts.ViewModels;

namespace SchoolBusinessLogics.OfficePackage
{
    public abstract class AbstractSaveToExcel
    {
        private void CreateHeaders(ExcelInfo info)
        {
            InsertCellInWorksheet(new ExcelCellParameters
            {
                ColumnName = "A",
                RowIndex = 1,
                Text = info.Title,
                StyleInfo = ExcelStyleInfoType.Title
            });

            MergeCells(new ExcelMergeParameters
            {
                CellFromName = "A1",
                CellToName = "G1"
            });

            for (var i = 0; i < info.Headers.Count; i++)
            {
                InsertCellInWorksheet(new ExcelCellParameters()
                {
                    ColumnName = ((char)('A' + i)).ToString(),
                    RowIndex = 2,
                    Text = info.Headers[i],
                    StyleInfo = ExcelStyleInfoType.Text
                });
            }
        }

        /// <summary>
        /// Создание отчета
        /// </summary>
        /// <param name="info"></param>
        public void CreateReportDisciplines(ExcelInfo info)
        {
            CreateExcel(info);
            CreateHeaders(info);
            
            uint rowIndex = 3;
            foreach (var pc in info.ReportObjects)
            {
                var discipline = pc as DisciplineViewModel;
                if (discipline == null)
                {
                    throw new ArgumentException($"Передан некорректный тип в отчет: " +
                                                $"ожидается DisciplineViewModel; Получен объект типа: {pc.GetType()}", nameof(info));
                }
                InsertCellInWorksheet(new ExcelCellParameters
                {
                    ColumnName = "A",
                    RowIndex = rowIndex,
                    Text = discipline.Name,
                    StyleInfo = ExcelStyleInfoType.Text
                });
                InsertCellInWorksheet(new ExcelCellParameters
                {
                    ColumnName = "B",
                    RowIndex = rowIndex,
                    Text = discipline.DateOfReceipt.ToShortDateString(),
                    StyleInfo = ExcelStyleInfoType.Text
                });
                InsertCellInWorksheet(new ExcelCellParameters
                {
                    ColumnName = "C",
                    RowIndex = rowIndex,
                    Text = discipline.DateOfPassage.ToShortDateString(),
                    StyleInfo = ExcelStyleInfoType.Text
                });

                for (var i = 0; i < discipline.ClientViewModels.Count; i++)
                {
                    var client = discipline.ClientViewModels[i];
                    InsertCellInWorksheet(new ExcelCellParameters
                    {
                        ColumnName = ((char)('D' + i)).ToString(),
                        RowIndex = rowIndex,
                        Text = $"{client.Name} на {discipline.ClientsModel[client.Id].DateOfClient.ToShortDateString()}",
                        StyleInfo = ExcelStyleInfoType.TextWithBroder
                    });
                }
                rowIndex++;
            }
            SaveExcel(info);
        }

        public void CreateReportClients(ExcelInfo info)
        {
            CreateExcel(info);
            CreateHeaders(info);

            uint rowIndex = 3;
            foreach (var pc in info.ReportObjects)
            {
                var student = pc as StudentViewModel;
                if (student == null)
                {
                    throw new ArgumentException($"Передан некорректный тип в отчет: " +
                                                $"ожидается StudentViewModel; Получен объект типа: {pc.GetType()}", nameof(info));
                }
                foreach (var discipline in student.Disciplines)
                {
                    InsertCellInWorksheet(new ExcelCellParameters
                    {
                        ColumnName = "A",
                        RowIndex = rowIndex,
                        Text = student.Name,
                        StyleInfo = ExcelStyleInfoType.Text
                    });
                    InsertCellInWorksheet(new ExcelCellParameters
                    {
                        ColumnName = "B",
                        RowIndex = rowIndex,
                        Text = discipline.StudentsModel[student.Id].DateOfStudent.ToShortDateString(),
                        StyleInfo = ExcelStyleInfoType.Text
                    });
                    InsertCellInWorksheet(new ExcelCellParameters
                    {
                        ColumnName = "C",
                        RowIndex = rowIndex,
                        Text = discipline.Name,
                        StyleInfo = ExcelStyleInfoType.Text
                    });
                    InsertCellInWorksheet(new ExcelCellParameters
                    {
                        ColumnName = "D",
                        RowIndex = rowIndex,
                        Text = student.Course.ToString(),
                        StyleInfo = ExcelStyleInfoType.Text
                    });
                }
                rowIndex++;
            }
            SaveExcel(info);
        }
        /// <summary>
        /// Создание excel-файла
        /// </summary>
        /// <param name="info"></param>
        protected abstract void CreateExcel(ExcelInfo info);

        /// <summary>
        /// Добавляем новую ячейку в лист
        /// </summary>
        protected abstract void InsertCellInWorksheet(ExcelCellParameters excelParams);

        /// <summary>
        /// Объединение ячеек
        /// </summary>
        protected abstract void MergeCells(ExcelMergeParameters excelParams);

        /// <summary>
        /// Сохранение файла
        /// </summary>
        /// <param name="info"></param>
        protected abstract void SaveExcel(ExcelInfo info);
    }
}