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using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using LibraryAPI.Models;
using LibraryAPI.Filters;
namespace LibraryAPI.Controllers {
[ServiceFilter(typeof(ActionFilter))]
[Route("api/books")]
[ApiController]
public class BooksController : ControllerBase {
private readonly LibraryContext _context;
public BooksController(LibraryContext context) {
_context = context;
}
/* Listar todos los libros.
o, regresar el que tenga un título específico */
[HttpGet]
public async Task<ActionResult<IEnumerable<Book>>> GetBooks() {
return await _context.Books.ToListAsync();
}
// Obtener el primer libro de la tabla.
[HttpGet("first")]
public async Task<ActionResult<Book>> GetFirst() {
return await _context.Books.FirstOrDefaultAsync();
}
// Obtener un libro por isbn.
[HttpGet("{isbn}")]
public async Task<ActionResult<Book>> GetBook([FromRoute] string isbn) {
var book = await _context.Books.FirstOrDefaultAsync(x => x.ISBN == isbn);
if(book == null)
return NotFound();
return book;
}
[HttpGet("{id:int}")]
public async Task<ActionResult<Book>> GetBook(long id) {
if (_context.Books == null)
return NotFound();
var book = await _context.Books.FindAsync(id);
if (book == null)
return NotFound();
return book;
}
[HttpPut("{id:int}")]
public async Task<ActionResult> PutBook(long id, Book book) {
if (id != book.Id)
return BadRequest("Attempted to modify a different resource");
_context.Update(book);
await _context.SaveChangesAsync();
var updated = await _context.Books.FindAsync(book.Id);
return Ok();
}
[HttpPost]
public async Task<ActionResult> PostBook(Book book) {
var author_exists = await _context.Authors.FindAsync(book.AuthorId);
if(author_exists == null)
return BadRequest($"Author with id {book.AuthorId} doesn't exist");
_context.Books.Add(book);
await _context.SaveChangesAsync();
return Ok();
}
// DELETE: api/books/5
[HttpDelete("{id}")]
public async Task<ActionResult> DeleteBook(long id) {
var book = await _context.Books.FindAsync(id);
if (book == null)
return NotFound();
_context.Books.Remove(book);
await _context.SaveChangesAsync();
return Ok();
}
}
}
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