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

namespace SchoolBusinessLogics.OfficePackage
{
    public abstract class AbstractSaveToPdf
    {
        public void CreateDocForAccounts(PdfInfo info)
        {
            CreatePdf(info);
            CreateParagraph(new PdfParagraph { Text = info.Title, Style = "NormalTitle", ParagraphAlignment = PdfParagraphAlignmentType.Center });
            CreateParagraph(new PdfParagraph { 
                Text = $"с {info.DateFrom.ToShortDateString()} по {info.DateTo.ToShortDateString()}", Style = "Normal", 
                ParagraphAlignment = PdfParagraphAlignmentType.Center });

            CreateTable(new List<string> { "5cm", "6cm", "3cm", "3cm"});

            CreateRow(new PdfRowParameters
            {
                Texts = new List<string> { "Ученик", "Занятие", "Дата получения занятия", "Пополнение счета" },
                Style = "NormalTitle",
                ParagraphAlignment = PdfParagraphAlignmentType.Center
            });
            var sumPaidPrice = 0.0;
            foreach (var pc in info.ReportObjects)
            {
                if (pc is not AccountViewModel account)
                {
                    throw new ArgumentException($"Передан некорректный тип в отчет: " +
                                                $"ожидается Account; Получен объект типа: {pc.GetType()}", nameof(info));
                }

                if (account.Student == null || account.ClientByDiscipline == null)
                {
                    throw new ArgumentNullException(nameof(account), $"Получена модель счета c нулевыми полями");
                }
                sumPaidPrice += account.Price;
                CreateRow(new PdfRowParameters
                {
                    Texts = new List<string>
                    {
                        account.Student.Name,
                        account.Discipline?.Name ?? string.Empty,
                        account.StudentByDiscipline.DateOfStudent.ToShortDateString(),
                        account.Price.ToString(),
                    },
                    Style = "Normal",
                    ParagraphAlignment = PdfParagraphAlignmentType.Left
                });
            }
            CreateParagraph(new PdfParagraph { Text = $"Итого оплачено : {sumPaidPrice}\t", Style = "Normal", ParagraphAlignment = PdfParagraphAlignmentType.Rigth });

            SavePdf(info);
        }

        public void CreateDocForDisciplines(PdfInfo info)
        {
            CreatePdf(info);
            CreateParagraph(new PdfParagraph { Text = info.Title, Style = "NormalTitle", ParagraphAlignment = PdfParagraphAlignmentType.Center });
            CreateParagraph(new PdfParagraph
            {
                Text = $"с {info.DateFrom.ToShortDateString()} по {info.DateTo.ToShortDateString()}",
                Style = "Normal",
                ParagraphAlignment = PdfParagraphAlignmentType.Center
            });

            CreateTable(new List<string> { "4cm", "5cm", "5cm", "3cm", });

            CreateRow(new PdfRowParameters
            {
                Texts = new List<string> { "Дата получения", "Занятие", "Требование", "Сумма требования" },
                Style = "NormalTitle",
                ParagraphAlignment = PdfParagraphAlignmentType.Center
            });
            foreach (var pc in info.ReportObjects)
            {
                if (pc is not DisciplineViewModel discipline)
                {
                    throw new ArgumentException($"Передан некорректный тип в отчет: " +
                                                $"ожидается Discipline; Получен объект типа: {pc.GetType()}", nameof(info));
                }
                
                if (discipline.RequirementViewModels == null)
                {
                    throw new ArgumentNullException($"Получена модель требований c нулевыми полями");
                }
                foreach(var requirement in discipline.RequirementViewModels)
                { 
                    CreateRow(new PdfRowParameters
                    {
                        Texts = new List<string>
                        {
                            discipline.DateOfPassage.ToShortDateString(),
                            discipline.Name,
                            requirement.NameOfRequirement,
                            requirement.Price.ToString(),
                        },
                        Style = "Normal",
                        ParagraphAlignment = PdfParagraphAlignmentType.Left
                    });
                }
            }
            SavePdf(info);
        }

        /// <summary>
		/// Создание doc-файла
		/// </summary>
		/// <param name="info"></param>
        protected abstract void CreatePdf(PdfInfo info);

        /// <summary>
        /// Создание параграфа с текстом
        /// </summary>
        protected abstract void CreateParagraph(PdfParagraph paragraph);

        /// <summary>
        /// Создание таблицы
        /// </summary>
        protected abstract void CreateTable(List<string> columns);

        /// <summary>
        /// Создание и заполнение строки
        /// </summary>
        /// <param name="rowParameters"></param>
        protected abstract void CreateRow(PdfRowParameters rowParameters);

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