import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { authApi } from '../api/auth'

export const useAuthStore = defineStore('auth', () => {
  const token = ref(localStorage.getItem('wmms_token') || '')
  const user = ref(JSON.parse(localStorage.getItem('wmms_user') || 'null'))

  const isLoggedIn = computed(() => !!token.value)
  const hasRole = roleCode => (user.value?.roles || []).some(role => role.enabled && role.code === roleCode)
  const isAdmin = computed(() => hasRole('super_admin'))

  function saveAuth(newToken, newUser) {
    token.value = newToken
    user.value = newUser
    localStorage.setItem('wmms_token', newToken)
    localStorage.setItem('wmms_user', JSON.stringify(newUser))
  }

  function clearAuth() {
    token.value = ''
    user.value = null
    localStorage.removeItem('wmms_token')
    localStorage.removeItem('wmms_user')
  }

  async function login(username, password) {
    const res = await authApi.login(username, password)
    saveAuth(res.data.token, res.data.user)
    return res.data
  }

  async function fetchCurrentUser() {
    if (!token.value) return null
    try {
      const res = await authApi.getCurrentUser()
      saveAuth(token.value, res.data)
      return res.data
    } catch {
      clearAuth()
      return null
    }
  }

  function logout() {
    clearAuth()
  }

  return {
    token, user, isLoggedIn, isAdmin, hasRole,
    saveAuth, clearAuth, login, fetchCurrentUser, logout
  }
})