using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using Jellyfin.Api.Constants;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.IO;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace Jellyfin.Api.Controllers;

/// <summary>
/// Item Refresh Controller.
/// </summary>
[Route("Items")]
[Authorize(Policy = Policies.RequiresElevation)]
public class ItemRefreshController : BaseJellyfinApiController
{
    private readonly ILibraryManager _libraryManager;
    private readonly IProviderManager _providerManager;
    private readonly IFileSystem _fileSystem;

    /// <summary>
    /// Initializes a new instance of the <see cref="ItemRefreshController"/> class.
    /// </summary>
    /// <param name="libraryManager">Instance of <see cref="ILibraryManager"/> interface.</param>
    /// <param name="providerManager">Instance of <see cref="IProviderManager"/> interface.</param>
    /// <param name="fileSystem">Instance of <see cref="IFileSystem"/> interface.</param>
    public ItemRefreshController(
        ILibraryManager libraryManager,
        IProviderManager providerManager,
        IFileSystem fileSystem)
    {
        _libraryManager = libraryManager;
        _providerManager = providerManager;
        _fileSystem = fileSystem;
    }

    /// <summary>
    /// Refreshes metadata for an item.
    /// </summary>
    /// <param name="itemId">Item id.</param>
    /// <param name="metadataRefreshMode">(Optional) Specifies the metadata refresh mode.</param>
    /// <param name="imageRefreshMode">(Optional) Specifies the image refresh mode.</param>
    /// <param name="replaceAllMetadata">(Optional) Determines if metadata should be replaced. Only applicable if mode is FullRefresh.</param>
    /// <param name="replaceAllImages">(Optional) Determines if images should be replaced. Only applicable if mode is FullRefresh.</param>
    /// <response code="204">Item metadata refresh queued.</response>
    /// <response code="404">Item to refresh not found.</response>
    /// <returns>An <see cref="NoContentResult"/> on success, or a <see cref="NotFoundResult"/> if the item could not be found.</returns>
    [HttpPost("{itemId}/Refresh")]
    [Description("Refreshes metadata for an item.")]
    [ProducesResponseType(StatusCodes.Status204NoContent)]
    [ProducesResponseType(StatusCodes.Status404NotFound)]
    public ActionResult RefreshItem(
        [FromRoute, Required] Guid itemId,
        [FromQuery] MetadataRefreshMode metadataRefreshMode = MetadataRefreshMode.None,
        [FromQuery] MetadataRefreshMode imageRefreshMode = MetadataRefreshMode.None,
        [FromQuery] bool replaceAllMetadata = false,
        [FromQuery] bool replaceAllImages = false)
    {
        var item = _libraryManager.GetItemById(itemId);
        if (item is null)
        {
            return NotFound();
        }

        var refreshOptions = new MetadataRefreshOptions(new DirectoryService(_fileSystem))
        {
            MetadataRefreshMode = metadataRefreshMode,
            ImageRefreshMode = imageRefreshMode,
            ReplaceAllImages = replaceAllImages,
            ReplaceAllMetadata = replaceAllMetadata,
            ForceSave = metadataRefreshMode == MetadataRefreshMode.FullRefresh
                || imageRefreshMode == MetadataRefreshMode.FullRefresh
                || replaceAllImages
                || replaceAllMetadata,
            IsAutomated = false
        };

        _providerManager.QueueRefresh(item.Id, refreshOptions, RefreshPriority.High);
        return NoContent();
    }
}