export const cartStorageKey = "lsb_cart_id"
export const tokenStorageKey = "lsb_customer_token"

export const getStoredCartId = () => {
  if (typeof window === "undefined") {
    return null
  }
  return window.localStorage.getItem(cartStorageKey)
}

export const setStoredCartId = (cartId) => {
  if (typeof window === "undefined") {
    return
  }
  window.localStorage.setItem(cartStorageKey, cartId)
}

export const clearStoredCartId = () => {
  if (typeof window === "undefined") {
    return
  }
  window.localStorage.removeItem(cartStorageKey)
}

export const getStoredToken = () => {
  if (typeof window === "undefined") {
    return null
  }
  return window.localStorage.getItem(tokenStorageKey)
}

export const setStoredToken = (token) => {
  if (typeof window === "undefined") {
    return
  }
  window.localStorage.setItem(tokenStorageKey, token)
}

export const clearStoredToken = () => {
  if (typeof window === "undefined") {
    return
  }
  window.localStorage.removeItem(tokenStorageKey)
}

export const ensureCart = async (client) => {
  const storedCartId = getStoredCartId()

  if (storedCartId) {
    try {
      const { cart } = await client.carts.retrieve(storedCartId)
      return cart
    } catch (error) {
      clearStoredCartId()
    }
  }

  const { regions } = await client.regions.list()
  if (!regions?.length) {
    throw new Error("Aucune région disponible pour créer un panier.")
  }

  const { cart } = await client.carts.create({ region_id: regions[0].id })
  setStoredCartId(cart.id)
  return cart
}