using System.Security.Claims;
using FictionArchive.Service.UserService.Models.DTOs;
using FictionArchive.Service.UserService.Services;
using HotChocolate.Authorization;
using HotChocolate.Data;

namespace FictionArchive.Service.UserService.GraphQL;

public class Query
{
    [Authorize]
    [UseProjection]
    [UseFirstOrDefault]
    public IQueryable<UserDto> GetCurrentUser(
        UserServiceDbContext dbContext,
        ClaimsPrincipal claimsPrincipal)
    {
        var oAuthProviderId = claimsPrincipal.FindFirst(ClaimTypes.NameIdentifier)?.Value;
        if (string.IsNullOrEmpty(oAuthProviderId))
        {
            return Enumerable.Empty<UserDto>().AsQueryable();
        }

        return dbContext.Users
            .Where(u => u.OAuthProviderId == oAuthProviderId)
            .Select(u => new UserDto
            {
                Id = u.Id,
                CreatedTime = u.CreatedTime,
                LastUpdatedTime = u.LastUpdatedTime,
                Username = u.Username,
                Email = u.Email,
                Disabled = u.Disabled,
                AvailableInvites = u.AvailableInvites,
                InviterId = u.InviterId,
                InvitedUsers = u.InvitedUsers.Select(iu => new InvitedUserDto
                {
                    Username = iu.Username,
                    Email = iu.Email
                }).ToList()
            });
    }
}