WorkFlow/WorkFlow.API/Controllers/UserController.cs

using DigitalData.Core.DTO;
using DigitalData.UserManager.Application.Contracts;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using WorkFlow.API.Attributes;

namespace WorkFlow.API.Controllers
{
    [APIKeyAuth]
    [Route("api/[controller]")]
    [ApiController]
    [Authorize]
    public class UserController(ILogger<UserController> logger, IUserService userService) : ControllerBase
    {
        [HttpGet]
        public async Task<IActionResult> GetAsync()
        {
            try
            {
                if (!this.TryGetUserId(out int? id))
                {
                    logger.LogError("Authorization failed: User ID claim not found.");
                    return StatusCode(StatusCodes.Status500InternalServerError, "Failed to retrieve user identity.");
                }
                else if(id is int id_int)
                    return await userService.ReadByIdAsync(id_int).ThenAsync(
                        Success: Ok,
                        Fail: IActionResult (msg, ntc) =>
                        {
                            logger.LogNotice(ntc);
                            return NotFound();
                        });
                else
                {
                    logger.LogError("Invalid user ID: Retrieved ID is null or not an integer.");
                    return StatusCode(StatusCodes.Status500InternalServerError, "Invalid user ID.");
                }
            }
            catch (Exception ex)
            {
                logger.LogError(ex, "An unexpected error occurred while processing the request: {Message}", ex.Message);
                return StatusCode(StatusCodes.Status500InternalServerError, "An internal server error occurred.");
            }
        }
    }
}