Tranga/API/Controllers/MaintenanceController.cs

using API.MangaConnectors;
using API.Schema.MangaContext;
using Asp.Versioning;
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using static Microsoft.AspNetCore.Http.StatusCodes;

namespace API.Controllers;

[ApiVersion(2)]
[ApiController]
[Route("v{v:apiVersion}/[controller]")]
public class MaintenanceController(MangaContext mangaContext) : Controller
{
    
    /// <summary>
    /// Removes all <see cref="Manga"/> not marked for Download on any <see cref="MangaConnector"/>
    /// </summary>
    /// <response code="200"></response>
    /// <response code="500">Error during Database Operation</response>
    [HttpPost("CleanupNoDownloadManga")]
    [ProducesResponseType(Status200OK)]
    [ProducesResponseType<string>(Status500InternalServerError, "text/plain")]
    public async Task<Results<Ok, InternalServerError<string>>> CleanupNoDownloadManga()
    {
        if (await mangaContext.Mangas
                .Include(m => m.MangaConnectorIds)
                .Where(m => !m.MangaConnectorIds.Any(id => id.UseForDownload))
                .ToArrayAsync(HttpContext.RequestAborted) is not { } noDownloads)
            return TypedResults.InternalServerError("Could not fetch Manga");
        
        mangaContext.Mangas.RemoveRange(noDownloads);
        
        if(await mangaContext.Sync(HttpContext.RequestAborted) is { success: false } result)
            return TypedResults.InternalServerError(result.exceptionMessage);
        return TypedResults.Ok();
    }
}