using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using PSTW_CentralSystem.DBContext;
using PSTW_CentralSystem.Models;
namespace PSTW_CentralSystem.Controllers.API
{
    [ApiController]
    [Route("[controller]")]

    public class IdentityAPI : ControllerBase
    {
        private readonly ILogger<IdentityAPI> _logger;
        private readonly IdentityDBContext _authDbContext;
        private readonly UserManager<UserModel> _userManager;

        public IdentityAPI(ILogger<IdentityAPI> logger, IdentityDBContext authDbContext, UserManager<UserModel> userManager)
        {
            _logger = logger;
            _authDbContext = authDbContext;
            _userManager = userManager;
        }

        [HttpPost("GetUserInformation/")]
        public async Task<IActionResult> GetUserInformation()
        {
            try
            {
                var user = await _userManager.GetUserAsync(User);
                var userRole = await _userManager.GetRolesAsync(user!);
                if (user == null)
                {
                    return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
                }

                var userInfo = await _authDbContext.Users.Include(u => u.Department).Select(u => new 
                { 
                    u.Id, 
                    u.NormalizedEmail, 
                    u.Department,
                    userRole,
                }).Where(u => u.Id == user.Id).FirstOrDefaultAsync();
                
                if (userInfo == null)
                {
                    return NotFound("User not found");
                }

                return Ok(new { UserInfo = userInfo });
            }
            catch (Exception ex)
            {
                return StatusCode(500, $"An error occurred: {ex.Message}");
            }
        }
    }
}