import { createAction, createReducer } from '@reduxjs/toolkit';
import { login } from './thunk';
import { UserData } from '@interfaces';

// Patch user_data in auth state after a successful profile update
export const updateUserData = createAction<Partial<UserData>>('auth/updateUserData');

export interface LoginState {
  loginSuccess: boolean;
  loginLoading: boolean;
  status: boolean;
  is_twofactor: boolean;
  user_data: UserData | null;
  token: string | null;
  loginError: string | null;
  loginMessage: string | null;
}

const initialState: LoginState = {
  loginSuccess: false,
  loginLoading: false,
  status: false,
  is_twofactor: false,
  user_data: null,
  token: null,
  loginError: null,
  loginMessage: null,
};

export const authReducer = createReducer(initialState, builder => {
  builder
    .addCase(login.pending, acc => {
      acc.loginLoading = true;
      acc.loginError = null;
      acc.loginMessage = null;
    })
    .addCase(login.fulfilled, (acc, action) => {
      acc.loginLoading = false;
      acc.status = action.payload.status;
      acc.is_twofactor = action.payload.is_twofactor;
      acc.user_data = action.payload.user_data;
      acc.token = action.payload.token;
      acc.loginSuccess = true;
      acc.loginError = null;
      acc.loginMessage = null;
    })
    .addCase(login.rejected, (acc, { error, payload }) => {
      acc.loginLoading = false;
      acc.loginError = (payload as string) ?? error.message ?? 'Login failed';
      acc.loginMessage = (payload as string) ?? error.message ?? 'Login failed';
      acc.loginSuccess = false;
    })
    .addCase(updateUserData, (acc, action) => {
      if (acc.user_data) {
        acc.user_data = { ...acc.user_data, ...action.payload };
      }
    });
});

export default authReducer;