OmniAuth.config.logger = Rails.logger
Rails.application.config.middleware.use OmniAuth::Builder do
provider :google_oauth2,"google_clent_id", "google_secret_id",{client_options: {ssl: {ca_file:Rails.root.join("cacert.pem").to_s}}}
end

config.omniauth :google_oauth2, "google_client_id", "google_secret_id", { name: 'google' }

devise_for :users, :controllers => { sessions: "sessions", registrations: 'registrations',:omniauth_callbacks => "users/omniauth_callbacks" }
  get 'auth/:provider/callback', to: 'sessions#create'
  get 'auth/failure', to: redirect('/')
  get 'signout', to: 'sessions#destroy', as: 'signout'

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
skip_before_action :verify_authenticity_token
  def google_oauth2
      @user = User.from_omniauth(request.env["omniauth.auth"])
      if @user.persisted?
        flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Google"
        sign_in_and_redirect @user, :event => :authentication
      else
        session["devise.google_data"] = request.env["omniauth.auth"]
        redirect_to new_user_registration_url
      end
  end
end

devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :omniauthable,
         :omniauth_providers => [:google_oauth2]
    def self.from_omniauth(auth)
    where(provider: auth.provider, uid: auth.uid).first_or_initialize.tap do |user|
      user.provider = auth.provider
      user.uid = auth.uid
      full_name = auth.info.name.split(" ")
      user.first_name = full_name[0]
      user.last_name = full_name[1]
      user.email = auth.info.email
      user.oauth_token = auth.credentials.token
      user.oauth_expires_at = Time.at(auth.credentials.expires_at)
      user.save!
    end
  end

def create
    user = User.from_omniauth(env["omniauth.auth"])
    session[:user_id] = user.id
    redirect_to root_path
  end

  def destroy
    session[:user_id] = nil
    redirect_to root_path
  end

<% if current_user %>
        Signed in as <strong><%= current_user.name %></strong>!
        <%= link_to "Sign out", signout_path, id: "sign_out" %>
      <% else %>
        <%= link_to "Sign in with Google", user_google_oauth2_omniauth_authorize_path, id: "sign_in" %>
      <% end %>

Started GET "/users/auth/google_oauth2" for 127.0.0.1 at 2018-01-21 15:49:11 +0530
   (0.3ms)  SELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY "schema_migrations"."version" ASC
(google_oauth2) Request phase initiated.
Started GET "/users/auth/google_oauth2/callback?state=*****&code=4/****" for 127.0.0.1 at 2018-01-21 15:49:16 +0530
(google_oauth2) Callback phase initiated.
Processing by Users::OmniauthCallbacksController#google_oauth2 as HTML
  Parameters: {"state"=>"****", "code"=>"4/****"}
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."provider" = ? AND "users"."uid" = ? ORDER BY "users"."id" ASC LIMIT ?  [["provider", "google_oauth2"], ["uid", "*****"], ["LIMIT", 1]]
   (0.1ms)  begin transaction
  SQL (3.5ms)  UPDATE "users" SET "oauth_token" = ?, "oauth_expires_at" = ?, "updated_at" = ? WHERE "users"."id" = ?  [["oauth_token", "*********"], ["oauth_expires_at", "2018-01-21 11:19:16"], ["updated_at", "2018-01-21 10:19:17.882842"], ["id", 2]]
   (105.7ms)  commit transaction
  User Load (0.4ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 2], ["LIMIT", 1]]
Redirected to http://localhost:3000/
Completed 302 Found in 220ms (ActiveRecord: 111.1ms)


Started GET "/" for 127.0.0.1 at 2018-01-21 15:49:18 +0530
Processing by HomeController#index as HTML
  Rendering home/index.html.erb within layouts/application
  Rendered layouts/sliders/_slider_home.html.erb (0.4ms)
  Rendered customers/_index.html.erb (1.6ms)
  Rendered home/index.html.erb within layouts/application (3.4ms)
  Rendered layouts/header/_style_files.html.erb (0.3ms)
  Rendered layouts/_meta_files.html.erb (1.5ms)
  Rendered layouts/logos/_logo_main.html.erb (1.4ms)
  Rendered layouts/header/_header_search.html.erb (2.5ms)
  Rendered layouts/header/_header_navigation.html.erb (0.6ms)
  Rendered layouts/logos/_logo_secondary.html.erb (1.1ms)
  Rendered layouts/footer/_footer.html.erb (2.3ms)
  Rendered layouts/static/_hover_top.html.erb (0.4ms)
  Rendered layouts/footer/_script_files.html.erb (1.1ms)
Completed 200 OK in 727ms (Views: 724.5ms | ActiveRecord: 0.0ms)