using FictionArchive.Service.UserService.Models.Database;
using Microsoft.EntityFrameworkCore;

namespace FictionArchive.Service.UserService.Services;

public class UserManagementService
{
    private readonly ILogger<UserManagementService> _logger;
    private readonly UserServiceDbContext _dbContext;

    public UserManagementService(UserServiceDbContext dbContext, ILogger<UserManagementService> logger)
    {
        _dbContext = dbContext;
        _logger = logger;
    }

    public async Task<User> RegisterUser(string username, string email, string oAuthProviderId,
        string? inviterOAuthProviderId)
    {
        var newUser = new User();
        User? inviter =
            await _dbContext.Users.FirstOrDefaultAsync(user => user.OAuthProviderId == inviterOAuthProviderId);
        if (inviter == null && inviterOAuthProviderId != null)
        {
            _logger.LogCritical(
                "A user with OAuthProviderId {OAuthProviderId} was marked as having inviter with OAuthProviderId {inviterOAuthProviderId}, but no user was found with that value.",
                inviterOAuthProviderId, inviterOAuthProviderId);
            newUser.Disabled = true;
        }

        newUser.Username = username;
        newUser.Email = email;
        newUser.OAuthProviderId = oAuthProviderId;

        _dbContext.Users.Add(newUser); // Add the new user to the DbContext
        await _dbContext.SaveChangesAsync(); // Save changes to the database
        
        return newUser;
    }

    public IQueryable<User> GetUsers()
    {
        return _dbContext.Users.AsQueryable();
    }
}