2023-10-27 00:47:57 +02:00

248 lines
9.0 KiB
C#

// Kyoo - A portable and vast media library solution.
// Copyright (c) Kyoo.
//
// See AUTHORS.md and LICENSE file in the project root for full license information.
//
// Kyoo is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// Kyoo is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Threading.Tasks;
using Kyoo.Abstractions.Controllers;
using Kyoo.Abstractions.Models;
using Kyoo.Abstractions.Models.Permissions;
using Kyoo.Abstractions.Models.Utils;
using Kyoo.Models;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
namespace Kyoo.Core.Api
{
/// <summary>
/// A base class to handle CRUD operations on a specific resource type <typeparamref name="T"/>.
/// </summary>
/// <typeparam name="T">The type of resource to make CRUD apis for.</typeparam>
[ApiController]
[ResourceView]
public class CrudApi<T> : BaseApi
where T : class, IResource
{
/// <summary>
/// The repository of the resource, used to retrieve, save and do operations on the baking store.
/// </summary>
protected IRepository<T> Repository { get; }
/// <summary>
/// Create a new <see cref="CrudApi{T}"/> using the given repository and base url.
/// </summary>
/// <param name="repository">
/// The repository to use as a baking store for the type <typeparamref name="T"/>.
/// </param>
public CrudApi(IRepository<T> repository)
{
Repository = repository;
}
/// <summary>
/// Get item
/// </summary>
/// <remarks>
/// Get a specific resource via it's ID or it's slug.
/// </remarks>
/// <param name="identifier">The ID or slug of the resource to retrieve.</param>
/// <returns>The retrieved resource.</returns>
/// <response code="404">A resource with the given ID or slug does not exist.</response>
[HttpGet("{identifier:id}")]
[PartialPermission(Kind.Read)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
public async Task<ActionResult<T>> Get(Identifier identifier)
{
T? ret = await identifier.Match(
id => Repository.GetOrDefault(id),
slug => Repository.GetOrDefault(slug)
);
if (ret == null)
return NotFound();
return ret;
}
/// <summary>
/// Get count
/// </summary>
/// <remarks>
/// Get the number of resources that match the filters.
/// </remarks>
/// <param name="where">A list of filters to respect.</param>
/// <returns>How many resources matched that filter.</returns>
/// <response code="400">Invalid filters.</response>
[HttpGet("count")]
[PartialPermission(Kind.Read)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
public async Task<ActionResult<int>> GetCount([FromQuery] Dictionary<string, string> where)
{
return await Repository.GetCount(ApiHelper.ParseWhere<T>(where));
}
/// <summary>
/// Get all
/// </summary>
/// <remarks>
/// Get all resources that match the given filter.
/// </remarks>
/// <param name="sortBy">Sort information about the query (sort by, sort order).</param>
/// <param name="where">Filter the returned items.</param>
/// <param name="pagination">How many items per page should be returned, where should the page start...</param>
/// <returns>A list of resources that match every filters.</returns>
/// <response code="400">Invalid filters or sort information.</response>
[HttpGet]
[PartialPermission(Kind.Read)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
public async Task<ActionResult<Page<T>>> GetAll(
[FromQuery] Sort<T> sortBy,
[FromQuery] Dictionary<string, string> where,
[FromQuery] Pagination pagination)
{
ICollection<T> resources = await Repository.GetAll(
ApiHelper.ParseWhere<T>(where),
sortBy,
pagination
);
return Page(resources, pagination.Limit);
}
/// <summary>
/// Create new
/// </summary>
/// <remarks>
/// Create a new item and store it. You may leave the ID unspecified, it will be filed by Kyoo.
/// </remarks>
/// <param name="resource">The resource to create.</param>
/// <returns>The created resource.</returns>
/// <response code="400">The resource in the request body is invalid.</response>
/// <response code="409">This item already exists (maybe a duplicated slug).</response>
[HttpPost]
[PartialPermission(Kind.Create)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
[ProducesResponseType(StatusCodes.Status409Conflict, Type = typeof(ActionResult<>))]
public virtual async Task<ActionResult<T>> Create([FromBody] T resource)
{
return await Repository.Create(resource);
}
/// <summary>
/// Edit
/// </summary>
/// <remarks>
/// Edit an item. If the ID is specified it will be used to identify the resource.
/// If not, the slug will be used to identify it.
/// </remarks>
/// <param name="resource">The resource to edit.</param>
/// <returns>The edited resource.</returns>
/// <response code="400">The resource in the request body is invalid.</response>
/// <response code="404">No item found with the specified ID (or slug).</response>
[HttpPut]
[PartialPermission(Kind.Write)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
[ProducesResponseType(StatusCodes.Status404NotFound)]
public async Task<ActionResult<T>> Edit([FromBody] T resource)
{
if (resource.Id > 0)
return await Repository.Edit(resource);
T old = await Repository.Get(resource.Slug);
resource.Id = old.Id;
return await Repository.Edit(resource);
}
/// <summary>
/// Patch
/// </summary>
/// <remarks>
/// Edit only specified properties of an item. If the ID is specified it will be used to identify the resource.
/// If not, the slug will be used to identify it.
/// </remarks>
/// <param name="resource">The resource to patch.</param>
/// <returns>The edited resource.</returns>
/// <response code="400">The resource in the request body is invalid.</response>
/// <response code="404">No item found with the specified ID (or slug).</response>
[HttpPatch]
[PartialPermission(Kind.Write)]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
[ProducesResponseType(StatusCodes.Status404NotFound)]
public async Task<ActionResult<T>> Patch([FromBody] PartialResource resource)
{
if (resource.Id.HasValue)
return await Repository.Patch(resource.Id.Value, TryUpdateModelAsync);
if (resource.Slug == null)
throw new ArgumentException("Either the Id or the slug of the resource has to be defined to edit it.");
T old = await Repository.Get(resource.Slug);
return await Repository.Patch(old.Id, TryUpdateModelAsync);
}
/// <summary>
/// Delete an item
/// </summary>
/// <remarks>
/// Delete one item via it's ID or it's slug.
/// </remarks>
/// <param name="identifier">The ID or slug of the resource to delete.</param>
/// <returns>The item has successfully been deleted.</returns>
/// <response code="404">No item could be found with the given id or slug.</response>
[HttpDelete("{identifier:id}")]
[PartialPermission(Kind.Delete)]
[ProducesResponseType(StatusCodes.Status204NoContent)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
public async Task<IActionResult> Delete(Identifier identifier)
{
await identifier.Match(
id => Repository.Delete(id),
slug => Repository.Delete(slug)
);
return NoContent();
}
/// <summary>
/// Delete all where
/// </summary>
/// <remarks>
/// Delete all items matching the given filters. If no filter is specified, delete all items.
/// </remarks>
/// <param name="where">The list of filters.</param>
/// <returns>The item(s) has successfully been deleted.</returns>
/// <response code="400">One or multiple filters are invalid.</response>
[HttpDelete]
[PartialPermission(Kind.Delete)]
[ProducesResponseType(StatusCodes.Status204NoContent)]
[ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(RequestError))]
public async Task<IActionResult> Delete([FromQuery] Dictionary<string, string> where)
{
Expression<Func<T, bool>>? w = ApiHelper.ParseWhere<T>(where);
if (w == null)
return BadRequest(new RequestError("Incule a filter to delete items, all items won't be deleted."));
await Repository.DeleteAll(w);
return NoContent();
}
}
}