softberries

scope "/", OauthTutorialWeb do
    pipe_through :browser

    get "/", PageController, :index
    resources "/todos", TodoController
  end

softberries

 schema "todos" do
    field :content, :string

    belongs_to :user, OauthTutorial.Accounts.User

    timestamps()
  end

softberries

 schema "users" do
    field :email, :string
    field :provider, :string
    field :token, :string

    has_many :todos, OauthTutorial.Todos.Todo

    timestamps()
  end

softberries

          <ul>
            <li><a href="https://hexdocs.pm/phoenix/overview.html">Get Started</a></li>
            <%= if function_exported?(Routes, :live_dashboard_path, 2) do %>
              <li><%= link "LiveDashboard", to: Routes.live_dashboard_path(@conn, :home) %></li>
            <% end %>
            <%= if @conn.assigns[:user] do %>
            <li><%= link "Logout", to: Routes.auth_path(@conn, :signout) %></li>
            <% else %>
            <li>
              <%= link "Sign in with Github", to: Routes.auth_path(@conn, :request, "github") %>

softberries

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_live_flash
    plug :put_root_layout, {OauthTutorialWeb.LayoutView, :root}
    plug :protect_from_forgery
    plug :put_secure_browser_headers
    plug OauthTutorial.Plugs.SetUser
  end

softberries

defmodule OauthTutorial.Plugs.SetUser do
  import Plug.Conn
  import Phoenix.Controller

  alias OauthTutorial.Repo
  alias OauthTutorial.Accounts.User

  def init(opts), do: opts

  def call(conn, _opts) do

softberries

    get "/signout", AuthController, :signout

softberries

  def signout(conn, _params) do
    conn
    |> configure_session(drop: true)
    |> redirect(to: Routes.page_path(conn, :index))
  end

softberries

def callback(%{assigns: %{ueberauth_auth: auth}} = conn, params) do
    user_data = %{token: auth.credentials.token, email: auth.info.email, provider: "github"}
    case findOrCreateUser(user_data) do
      {:ok, user} ->
        conn
        |> put_flash(:info, "Welcome to OAuth Tutorial!")
        |> put_session(:user_id, user.id)
        |> redirect(to: "/")

      {:error, changeset} ->

softberries

defp findOrCreateUser(user_data) do
    changeset = User.changeset(%User{}, user_data)
    case Repo.get_by(User, email: changeset.changes.email) do
      nil ->
        IO.puts("User not found, creating new one")
        Repo.insert(changeset)
      user -> {:ok, user}
    end
  end