FictionArchive/FictionArchive.Service.UserNovelDataService/GraphQL/Query.cs

using System.Security.Claims;
using FictionArchive.Service.UserNovelDataService.Models.DTOs;
using FictionArchive.Service.UserNovelDataService.Services;
using HotChocolate.Authorization;
using Microsoft.EntityFrameworkCore;

namespace FictionArchive.Service.UserNovelDataService.GraphQL;

public class Query
{
    [Authorize]
    public async Task<IQueryable<BookmarkDto>> GetBookmarks(
        UserNovelDataServiceDbContext dbContext,
        ClaimsPrincipal claimsPrincipal,
        uint novelId)
    {
        var oAuthProviderId = claimsPrincipal.FindFirst(ClaimTypes.NameIdentifier)?.Value;
        if (string.IsNullOrEmpty(oAuthProviderId))
        {
            return new List<BookmarkDto>().AsQueryable();
        }

        var user = await dbContext.Users
            .AsNoTracking()
            .FirstOrDefaultAsync(u => u.OAuthProviderId == oAuthProviderId);

        if (user == null)
        {
            return new List<BookmarkDto>().AsQueryable();
        }

        return dbContext.Bookmarks
            .AsNoTracking()
            .Where(b => b.UserId == user.Id && b.NovelId == novelId)
            .OrderByDescending(b => b.CreatedTime)
            .Select(b => new BookmarkDto
            {
                Id = b.Id,
                ChapterId = b.ChapterId,
                NovelId = b.NovelId,
                Description = b.Description,
                CreatedTime = b.CreatedTime
            });
    }
}