defmodule MastheadWeb.SSO do
@moduledoc """
Renders the social sign-in buttons, showing a provider only when its
OAuth client is actually configured (client id present in the env).
Used by the sign-in and sign-up pages.
"""
use Phoenix.Component
use MastheadWeb, :verified_routes
@providers [
{:google, "Continue with Google", Ueberauth.Strategy.Google.OAuth},
{:github, "Continue with GitHub", Ueberauth.Strategy.Github.OAuth}
]
@doc "Configured providers as `[%{id: atom, label: string}]`."
def configured do
for {id, label, oauth_mod} <- @providers,
configured?(oauth_mod),
do: %{id: id, label: label}
end
defp configured?(oauth_mod) do
case Application.get_env(:ueberauth, oauth_mod) do
nil -> false
cfg -> cfg[:client_id] not in [nil, ""]
end
end
@doc "Divider + one button per configured provider. Nothing if none."
def buttons(assigns) do
assigns = assign(assigns, :providers, configured())
~H"""
"""
end
attr :id, :atom, required: true
defp provider_icon(%{id: :github} = assigns) do
~H"""
"""
end
defp provider_icon(%{id: :google} = assigns) do
~H"""
"""
end
defp provider_icon(assigns), do: ~H""
end