import { useUserStore } from '#lib/stores'
import type { AppCookies, UserLoginRequest } from '#lib/types'
import { setIsLogged } from '#lib/utils'
import { useResetStore, useAuthService } from '#lib/composables'
import { useNuxtApp } from 'nuxt/app'

/**
 * Composable to handle authentication API requests, including login and logout.
 *
 * @returns {Object} Methods to handle login and logout actions.
 * @namespace
 */
export const useAuthApi = () => {
  // Get authentication service functions and stores.
  const { requestLogin, requestLogout } = useAuthService()
  const store = useUserStore()
  const resetStore = useResetStore()
  const $appCookies = useNuxtApp().$appCookies as AppCookies

  /**
   * Handles user login by making an API request.
   *
   * @param requestUser - The login request payload.
   * @returns {Promise<void>}
   */
  const onLogin = async (requestUser: UserLoginRequest) => {
    // Make login request using the provided credentials.
    const { data, error } = await requestLogin(requestUser)

    // If login is successful, handle the response.
    if (data.value) {
      const user = data.value.data
      $appCookies.token.value = user.token // Save token in cookies.
      $appCookies.gpToken.value = user.token
      store.setUser(user) // Update user store with user information.
      setIsLogged(true) // Mark user as logged in.
    }

    // If there's an error, throw it to be handled by the caller.
    if (error.value) {
      throw error.value
    }
  }

  /**
   * Handles user logout by making an API request.
   *
   * @returns {Promise<void>}
   */
  const onLogout = async () => {
    // Make logout request.
    const { error } = await requestLogout()

    // If there's an error, throw it to be handled by the caller.
    if (error.value) {
      throw error.value
    }

    // Perform cleanup operations after logout.
    resetStore.resetAll() // Reset other stores if necessary.
    store.resetUser() // Clear user information from the store.
    $appCookies.token.value = null // Remove token from cookies.
    $appCookies.gpToken.value = null
  }

  // Return methods for handling login and logout.
  return {
    onLogin,
    onLogout,
  }
}