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

namespace ComputerStoreBusinessLogic.OfficePackage
{
    public abstract class AbstractSaveToPDF
    {
        public void CreateDoc(PDFInfo info)
        {
            CreatePDF(info);
            CreateParagraph(new PDFParagraph
            {
                Text = info.Title,
                Style = "NormalTitle",
                ParagraphAlignment = PDFParagraphAlignmentType.Center
            });
            CreateParagraph(new PDFParagraph
            {
                Text = $"from {info.DateFrom.ToShortDateString()} to {info.DateTo.ToShortDateString()}",
                Style = "Normal",
                ParagraphAlignment = PDFParagraphAlignmentType.Center
            });
            CreateTable(new List<string> { "6cm", "6cm", "3cm", "5cm"});
            CreateRow(new PDFRowParameters
            {
                Texts = new List<string> { "PC's name", "Employee's username", "Total", "Components" },
                Style = "NormalTitle",
                ParagraphAlignment = PDFParagraphAlignmentType.Center
            });
            foreach (var pc in info.PCs)
            {
                CreateComplicatedRow(new PDFRowParameters
                {
                    Texts = new List<string> { pc.PCName, pc.EmployeeUsername, pc.Price.ToString() },
                    Style = "Normal",
                    ParagraphAlignment = PDFParagraphAlignmentType.Left
                },pc.Components);
            }
            CreateTable(new List<string> { "6cm", "6cm", "3cm", "5cm" });
            CreateRow(new PDFRowParameters
            {
                Texts = new List<string> { "Product's name", "Employee's username", "Total", "Components" },
                Style = "NormalTitle",
                ParagraphAlignment = PDFParagraphAlignmentType.Center
            });
            foreach (var product in info.Products)
            {
                CreateComplicatedRow(new PDFRowParameters
                {
                    Texts = new List<string> { product.ProductName, product.EmployeeUsername, product.Price.ToString() },
                    Style = "Normal",
                    ParagraphAlignment = PDFParagraphAlignmentType.Left
                },product.Components);
            }
            CreateParagraph(new PDFParagraph
            {
                Text = $"Total by products: {info.Products.Sum(x => x.Price)} + {info.Products}\t",
                Style = "Normal",
                ParagraphAlignment = PDFParagraphAlignmentType.Right
            });
            CreateParagraph(new PDFParagraph
            {
                Text = $"Total by pcs: {info.PCs.Sum(x => x.Price)}\t",
                Style = "Normal",
                ParagraphAlignment = PDFParagraphAlignmentType.Right
            });
            CreateParagraph(new PDFParagraph
            {
                Text = $"Total: {info.PCs.Sum(x => x.Price)} + {info.Products.Sum(x => x.Price)}\t",
                Style = "Normal",
                ParagraphAlignment = PDFParagraphAlignmentType.Right
            });
            SavePDF(info);
        }

        protected abstract void SavePDF(PDFInfo info);
        protected abstract void CreatePDF(PDFInfo info);
        protected abstract void CreateParagraph(PDFParagraph PDFParagraph);
        protected abstract void CreateTable(List<string> columns);
        protected abstract void CreateRow(PDFRowParameters rowParameters);
        protected abstract void CreateComplicatedRow(PDFRowParameters rowParameters, IEnumerable<(string,int)> components);
    }
}