using Fitness_core_BE.Models.IOs;
using Fitness_core_BE.Services.Auth;
using Fitness_core_BE.DTOs.Auth;
using Fitness_core_BE.Exceptions;
using Fitness_core_BE.Interfaces.Services;

namespace Fitness_core_BE.Services.FunctionHandler
{
    public class AuthFuncHandler
{
        public readonly Dictionary<string, Func<object, HttpContext, Task<AuthResponse>>> _functionHandler;

        public AuthFuncHandler(IAuthService authService)
        {
            _functionHandler = new()
            {
                {"SendOtp", authService.SendOtp },
                {"VerifyOTP", authService.VerifyOTP },
                {"IsAvailable", authService.IsAvailable },
                {"RegisterUser", authService.RegisterUser },                
                {"UpdateUser", authService.UpdateUser  },
                {"GetUserDetails", authService.GetUserDetails },
                {"LoginUser", authService.LoginUser },
                {"RefreshToken", authService.RefreshToken },
                {"VerifyOtpForLogin", authService.VerifyOtpForLogin },
                {"forgotPassword", authService.ForgotPassword },
                {"resetPassword", authService.ResetPassword },
                {"resetPasswordWithToken", authService.ResetPasswordWithToken },
                {"LogOut", authService.LogOut  }

            };
        }

        public async Task<ApiResponse<object>> Execute(ApiRequest request, HttpContext httpContext)
        {
            if (!_functionHandler.TryGetValue(request.FunctionName, out var handler))
            {
                return new ApiResponse<object>
                {
                    StatusCode = 404,
                    Message = $"Function '{request.FunctionName}' not found.",
                    Data = null
                };
            }
            try
            {
                var authResponse = await handler(request.Payload, httpContext);
                
                return new ApiResponse<object>
                {
                    StatusCode = authResponse.StatusCode,
                    Message = authResponse.Message,
                    Data = authResponse.Data
                };
            }
            catch (UnauthorizedException ex)
            {
                return new ApiResponse<object>
                {
                    StatusCode = 401,
                    Message = ex.Message,
                };
            }
            catch (NotFoundException ex)
            {
                return new ApiResponse<object>
                {
                    StatusCode = 404,
                    Message = ex.Message, 
                };
            }
            catch (BadRequestException ex)
            {
                return new ApiResponse<object>
                {
                    StatusCode = 400,
                    Message = ex.Message,
                };
            }
            catch (ForbiddenException ex)
            {
                return new ApiResponse<object>
                {
                    StatusCode = 403,
                    Message = ex.Message,
                };
            }
            catch (Exception ex)
            {
                return new ApiResponse<object>
                {
                    StatusCode = 500,
                    Message = $"An error occurred: {ex.Message}",  
                };
            }
        }
    }
}