using Microsoft.AspNetCore.Mvc;

using System.Collections.Generic;

using System.Linq;

​

namespace BookStore.Controllers

{

    [ApiController]

    [Route("[controller]")]

    public class BooksController : ControllerBase

    {

        private static List<Book> books = new List<Book>

        {

            new Book { Id = 1, Title = "1984", Author = "George Orwell" },

            new Book { Id = 2, Title = "To Kill a Mockingbird", Author = "Harper Lee" }

        };

​

        [HttpGet]

        public ActionResult<IEnumerable<Book>> Get()

        {

            return books;

        }

​

        [HttpGet("{id}")]

        public ActionResult<Book> Get(int id)

        {

            var book = books.FirstOrDefault(b => b.Id == id);

            if (book == null)

                return NotFound();

            return book;

        }

​

        [HttpPost]

        public IActionResult Post([FromBody] Book book)

        {

            books.Add(book);

            return CreatedAtAction(nameof(Get), new { id = book.Id }, book);

        }

​

        [HttpPost("{id}")]

        public IActionResult Put(int id, [FromBody] Book book)

        {

            var index = books.FindIndex(b => b.Id == id);

            if (index == -1)

                return NotFound();

            books[index] = book;

            return NoContent();

        }

​

        [HttpPost("{id}")]

        public IActionResult Delete(int id)

        {

            var index = books.FindIndex(b => b.Id == id);

            if (index == -1)

                return NotFound();

            books.RemoveAt(index);

            return NoContent();

        }

    }

​

    public class Book

    {

        public int Id { get; set; }

        public string Title { get; set; }

        public string Author { get; set; }

    }

}