using Library.Models;
using Library.Repositories;
using Library.Services;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Library
{
    public partial class AddBook : Form
    {

        BookService _bookService;
        AuthorService _authorService;
        BookCopyService _bookCopyService;


        public AddBook()
        {

            InitializeComponent();
            RepositoryFactory repoFactory = new RepositoryFactory();
            _bookService = new BookService(repoFactory);
            _authorService = new AuthorService(repoFactory);
            _bookCopyService = new BookCopyService(repoFactory);

            _bookService.Updated += ListAllBooks;

            FillAuthors();

            foreach (Book b in _bookService.All())
            {
                bookList.Items.Add(b);
            }



        }

        public void ListAllBooks(object sender, EventArgs e)
        {
            bookList.Items.Clear();
            foreach (Book b in _bookService.All())
            {
                bookList.Items.Add(b);
            }
        }

        public void FillAuthors()
        {
            authorBox.Items.Clear();
            foreach (Author a in _authorService.All())
            {
                authorBox.Items.Add(a);
            }
        }


        private void button1_Click(object sender, EventArgs e)
        {
            Author selectedAuthor = authorBox.SelectedItem as Author;

            Book newEntry = new Book
            {
                Title = titleBox.Text,
                ISBN = Int32.Parse(isbnBox.Text),
                Description = descriptionBox.Text,
                Author = selectedAuthor
            };
            BookCopy newCopy = new BookCopy
            {
                Book = newEntry
            };

            titleBox.Clear();
            isbnBox.Clear();
            descriptionBox.Clear();
            authorBox.SelectedIndex = -1;

            _bookService.Add(newEntry);
            for (int i = 0; i < numCopies.Value; i++)
            {
                _bookCopyService.Add(newCopy);
                newEntry.NumCopies.Add(newCopy);
            }



        }

        private void homeBtn_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void editBtn_Click(object sender, EventArgs e)
        {

            Book selectedBook = bookList.SelectedItem as Book;

            Book editBook = new Book
            {
                Id = selectedBook.Id,
                Title = titleBox.Text,
                Description = descriptionBox.Text,
                ISBN = Convert.ToInt32(isbnBox.Text),
                NumCopies = selectedBook.NumCopies,
                Author = authorBox.SelectedItem as Author
            };

            titleBox.Clear();
            isbnBox.Clear();
            descriptionBox.Clear();
            authorBox.SelectedIndex = -1;

            _bookService.Edit(editBook);
        }

        private void removeBtn_Click(object sender, EventArgs e)
        {
           // if (bookList.SelectedIndex != null && bookCopyList.SelectedIndex)
            _bookService.Remove(bookList.SelectedItem as Book);
        }

        private void bookList_SelectedIndexChanged(object sender, EventArgs e)
        {
            Book selectedBook = bookList.SelectedItem as Book;
            bookCopyList.Items.Clear();
            foreach (BookCopy bc in selectedBook.NumCopies)
            {
                bookCopyList.Items.Add(bc.Id + "--" + bc.Book.Title);
            }
        }

    }
}