using ElectronicsShopBusinessLogic.OfficePackage.HelperEnums;
using ElectronicsShopBusinessLogic.OfficePackage.HelperModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ElectronicsShopBusinessLogic.OfficePackage
{
    public abstract class AbstractSaveToWordClient
    {
        public byte[]? CreateDoc(WordInfoClient info)
        {
            CreateWord(info);

            CreateParagraph(new WordParagraph
            {
                Texts = new List<(string, WordTextProperties)> { (info.Title, new WordTextProperties { Bold = true, Size = "24", }) },
                TextProperties = new WordTextProperties
                {
                    Size = "24",
                    JustificationType = WordJustificationType.Center
                }
            });

            CreateParagraph(new WordParagraph {
                Texts = new List<(string, WordTextProperties)> { ($"С {info.DateFrom.ToShortDateString()} по {info.DateTo.ToShortDateString()}", 
                                                                new WordTextProperties { Bold = true, Size = "24", }) },
                TextProperties = new WordTextProperties {
                    Size = "24",
                    JustificationType = WordJustificationType.Both
                }
            });
            List<int> PaymentsID = new List<int>();
            foreach (var pr in info.Products)
            {
                int id = pr.PaymentID;
                if (PaymentsID.Contains(id) == false)
                {
                    PaymentsID.Add(id);
                }
            }

            foreach (int id in PaymentsID)
            {
                CreateParagraph(new WordParagraph
                {
                    Texts = new List<(string, WordTextProperties)> { ($"Номер оплаты: {id}", new WordTextProperties { Bold = true, Size = "24", }) },
                    TextProperties = new WordTextProperties
                    {
                        Size = "24",
                        JustificationType = WordJustificationType.Center
                    }
                });

                double sum = 0;
                foreach (var products in info.Products)
                {
                    if (products.PaymentID == id)
                    {
                        sum += products.Price * products.count;
                        CreateParagraph(new WordParagraph
                        {
                            Texts = new List<(string, WordTextProperties)> { ($"ID товара:{products.ID.ToString()}/Название:{products.ProductName.ToString()}/"
							+ $"Стоимость:{products.Price * products.count}/Количество:{products.count.ToString()}/"
							+ $"Статья_затрат:{products.CostItemName.ToString()}", new WordTextProperties { Bold = false, Size = "24", }) },
                            TextProperties = new WordTextProperties
                            {
                                Size = "24",
                                JustificationType = WordJustificationType.Both
                            }
                        });
                    }
                }
                CreateParagraph(new WordParagraph
                {
                    Texts = new List<(string, WordTextProperties)> { ($"Итого: {sum}\t", new WordTextProperties { Bold = false, Size = "24", }) },
                    TextProperties = new WordTextProperties
                    {
                        Size = "24",
                        JustificationType = WordJustificationType.Both
                    }
                });
            }

            var document = SaveWord(info);
            return document;
        }

		// Создание doc-файла
        protected abstract void CreateWord(WordInfoClient info);

        // Создание абзаца с текстом
        protected abstract void CreateParagraph(WordParagraph paragraph);

		// Сохранение файла
        protected abstract byte[]? SaveWord(WordInfoClient info);
    }
}