Get events of display month from Google calendar

Gemfile

@@ -75,3 +75,6 @@ gem 'devise'
 gem 'omniauth'
 gem 'omniauth-google-oauth2'
 gem 'devise_invitable'
+
+gem 'googleauth'
+gem 'google-api-client'

Gemfile.lock

@@ -27,84 +27,113 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
+    addressable (2.4.0)
     arel (5.0.1.20140414130214)
-    autodoc (0.5.2)
+    autodoc (0.6.0)
       actionpack
       activesupport (>= 3.0.0)
       rspec
-    awesome_nested_set (3.0.2)
-      activerecord (>= 4.0.0, < 5)
+    awesome_nested_set (3.1.1)
+      activerecord (>= 4.0.0, < 5.1)
     bcrypt (3.1.11)
-    bootstrap3-datetimepicker-rails (4.0.0)
+    bootstrap3-datetimepicker-rails (4.17.42)
       momentjs-rails (>= 2.8.1)
     builder (3.2.2)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
-    coffee-script (2.3.0)
+    coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.8.0)
+    coffee-script-source (1.10.0)
     commonjs (0.2.7)
     devise (4.2.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0, < 5.1)
       responders
       warden (~> 1.2.3)
-    devise_invitable (1.6.0)
-      actionmailer (>= 3.2.6)
-      devise (>= 3.2.0)
+    devise_invitable (1.7.0)
+      actionmailer (>= 4.0.0)
+      devise (>= 4.0.0)
     diff-lcs (1.2.5)
     erubis (2.7.0)
-    execjs (2.2.2)
-    factory_girl (4.5.0)
+    execjs (2.7.0)
+    factory_girl (4.7.0)
       activesupport (>= 3.0.0)
-    factory_girl_rails (4.5.0)
-      factory_girl (~> 4.5.0)
+    factory_girl_rails (4.7.0)
+      factory_girl (~> 4.7.0)
       railties (>= 3.0.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    fullcalendar-rails (2.2.2.0)
+    fullcalendar-rails (2.4.0.0)
       jquery-rails (>= 3.1.1, < 5.0.0)
-      momentjs-rails (~> 2.8, >= 2.8.3)
-    hashie (3.4.4)
+      momentjs-rails (>= 2.9.0)
+    google-api-client (0.9.15)
+      addressable (~> 2.3)
+      googleauth (~> 0.5)
+      httpclient (~> 2.7)
+      hurley (~> 0.1)
+      memoist (~> 0.11)
+      mime-types (>= 1.6)
+      representable (~> 2.3.0)
+      retriable (~> 2.0)
+    googleauth (0.5.1)
+      faraday (~> 0.9)
+      jwt (~> 1.4)
+      logging (~> 2.0)
+      memoist (~> 0.12)
+      multi_json (~> 1.11)
+      os (~> 0.9)
+      signet (~> 0.7)
+    hashie (3.4.6)
     hike (1.2.3)
-    i18n (0.6.11)
-    icalendar (2.2.2)
-    jbuilder (2.2.5)
-      activesupport (>= 3.0.0, < 5)
+    httpclient (2.8.2.4)
+    hurley (0.2)
+    i18n (0.7.0)
+    icalendar (2.4.1)
+    jbuilder (2.6.0)
+      activesupport (>= 3.0.0, < 5.1)
       multi_json (~> 1.2)
-    jquery-rails (3.1.2)
+    jquery-rails (3.1.4)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
-    jquery-ui-rails (5.0.3)
+    jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
-    json (1.8.1)
-    jwt (1.5.4)
-    kaminari (0.16.3)
+    json (1.8.3)
+    jwt (1.5.6)
+    kaminari (0.17.0)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
-    knockoutjs-rails (3.3.0.1)
-      railties (>= 3.1, < 5)
+    knockoutjs-rails (3.4.0.1)
+      railties (>= 3.1, < 6)
     less (2.6.0)
       commonjs (~> 0.2.7)
-    less-rails (2.6.0)
-      actionpack (>= 3.1)
+    less-rails (2.7.1)
+      actionpack (>= 4.0)
       less (~> 2.6.0)
-    libv8 (3.16.14.7)
-    mail (2.6.3)
-      mime-types (>= 1.16, < 3)
-    mime-types (2.4.3)
-    mini_portile (0.6.2)
-    minitest (5.4.3)
-    momentjs-rails (2.8.3)
+      sprockets (> 2, < 4)
+      tilt
+    libv8 (3.16.14.15)
+    little-plugger (1.1.4)
+    logging (2.1.0)
+      little-plugger (~> 1.1)
+      multi_json (~> 1.10)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
+    memoist (0.15.0)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_portile2 (2.1.0)
+    minitest (5.9.1)
+    momentjs-rails (2.15.1)
       railties (>= 3.1)
-    multi_json (1.10.1)
+    multi_json (1.12.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     oauth2 (1.2.0)
       faraday (>= 0.8, < 0.10)
       jwt (~> 1.0)
@@ -123,8 +152,9 @@ GEM
       oauth2 (~> 1.0)
       omniauth (~> 1.2)
     orm_adapter (0.5.0)
-    rack (1.5.2)
-    rack-test (0.6.2)
+    os (0.9.6)
+    rack (1.5.5)
+    rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.8)
       actionmailer (= 4.1.8)
@@ -141,32 +171,36 @@ GEM
       activesupport (= 4.1.8)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.4.0)
-    rdoc (4.1.2)
+    rake (11.3.0)
+    rdoc (4.2.2)
       json (~> 1.4)
-    ref (1.0.5)
+    ref (2.0.0)
+    representable (2.3.0)
+      uber (~> 0.0.7)
     responders (1.1.2)
       railties (>= 3.2, < 4.2)
-    rspec (3.1.0)
-      rspec-core (~> 3.1.0)
-      rspec-expectations (~> 3.1.0)
-      rspec-mocks (~> 3.1.0)
-    rspec-core (3.1.7)
-      rspec-support (~> 3.1.0)
-    rspec-expectations (3.1.2)
+    retriable (2.1.0)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-mocks (3.5.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.1.0)
-    rspec-mocks (3.1.3)
-      rspec-support (~> 3.1.0)
-    rspec-rails (3.1.0)
+      rspec-support (~> 3.5.0)
+    rspec-rails (3.5.2)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       railties (>= 3.0)
-      rspec-core (~> 3.1.0)
-      rspec-expectations (~> 3.1.0)
-      rspec-mocks (~> 3.1.0)
-      rspec-support (~> 3.1.0)
-    rspec-support (3.1.2)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
     sass (3.2.19)
     sass-rails (4.0.5)
       railties (>= 4.0.0, < 5.0)
@@ -177,35 +211,41 @@ GEM
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
     settingslogic (2.0.9)
-    spring (1.2.0)
-    sprockets (2.12.3)
+    signet (0.7.3)
+      addressable (~> 2.3)
+      faraday (~> 0.9)
+      jwt (~> 1.5)
+      multi_json (~> 1.10)
+    spring (1.7.2)
+    sprockets (2.12.4)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.2.1)
+    sprockets-rails (2.3.3)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
-    sqlite3 (1.3.10)
-    therubyracer (0.12.1)
+    sqlite3 (1.3.11)
+    therubyracer (0.12.2)
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.5)
     tilt (1.4.1)
-    turbolinks (2.5.2)
-      coffee-rails
-    twitter-bootstrap-rails (3.2.0)
-      actionpack (~> 4.1)
-      execjs (~> 2.2)
-      rails (~> 4.1)
-      railties (~> 4.1)
+    turbolinks (5.0.1)
+      turbolinks-source (~> 5)
+    turbolinks-source (5.0.0)
+    twitter-bootstrap-rails (3.2.2)
+      actionpack (>= 3.1)
+      execjs (>= 2.2.2, >= 2.2)
+      less-rails (>= 2.5.0)
+      railties (>= 3.1)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uglifier (2.5.3)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
+    uber (0.0.15)
+    uglifier (3.0.2)
+      execjs (>= 0.3.0, < 3)
     warden (1.2.6)
       rack (>= 1.0)
 
@@ -221,6 +261,8 @@ DEPENDENCIES
   devise_invitable
   factory_girl_rails
   fullcalendar-rails
+  google-api-client
+  googleauth
   icalendar
   jbuilder (~> 2.0)
   jquery-rails
@@ -242,3 +284,6 @@ DEPENDENCIES
   turbolinks
   twitter-bootstrap-rails
   uglifier (>= 1.3.0)
+
+BUNDLED WITH
+   1.12.5

app/assets/javascripts/events.js.coffee

@@ -12,7 +12,7 @@ fullCalendar = ->
       month: 'HH:mm'
       week: 'HH:mm'
       day: 'HH:mm'
-    events: '/events.json'
+    events: '/events/fetch'
 
     eventClick:
       (calEvent) ->

app/controllers/events_controller.rb

@@ -1,4 +1,10 @@
 require 'date'
+require 'googleauth'
+require 'googleauth/stores/file_token_store'
+require 'google/api_client/client_secrets'
+require 'google/apis/calendar_v3'
+require 'json'
+require 'yaml'
 
 class EventsController < ApplicationController
   before_action :set_event, only: [:show, :edit, :update, :destroy]
@@ -116,7 +122,64 @@ def ajax_create_event_from_old_event
     end
   end
 
+  def fetch
+    #config = YML.load_file('~/.config/camome/config.yml')
+    @user_id = "*************"
+    @calendar_ids = [@user_id]
+    @client_id = ApplicationSettings.oauth.google.application_id
+    @client_secret = ApplicationSettings.oauth.google.application_secret
+    @oob_url = 'urn:ietf:wg:oauth:2.0:oob'
+
+    collection = []
+    timeMax = Time.parse(params["end"]).iso8601
+    timeMin = Time.parse(params["start"]).iso8601
+    @calendar_ids.each do |calendar_id|
+      response = get_events(timeMax, timeMin, calendar_id)
+      response.items.each do |item|
+        collection << {title: item.summary, start: item.start.date, end: item.end.date}
+      end
+    end
+    render json: collection
+  end
+
   private
+
+  def get_events(timeMax, timeMin, calendar_id)
+    params = {:order_by => "startTime", :single_events => "true", :show_deleted => "false", :time_max => timeMax, :time_min => timeMin}
+    return google_calendar_api(params, calendar_id)
+  end
+
+  def authorize
+    dir_path = "~/.config/camome"
+    client_id = Google::Auth::ClientId.new(@client_id, @client_secret)
+    token_store = Google::Auth::Stores::FileTokenStore.new(
+      file: File.expand_path("#{dir_path}/google_access_tokens.yml", __FILE__))
+    scope = 'https://www.googleapis.com/auth/calendar'
+    authorizer = Google::Auth::UserAuthorizer.new(client_id, scope, token_store)
+
+    credentials = authorizer.get_credentials(@user_id)
+    if credentials.nil?
+      url = authorizer.get_authorization_url(
+        base_url: @oob_url)
+      puts "Open the following URL in the browser and enter the " +
+           "resulting code after authorization"
+      puts url
+      code = STDIN.gets.chomp
+      credentials = authorizer.get_and_store_credentials_from_code(
+        user_id: @user_id, code: code, base_url: @oob_url)
+    end
+    return credentials
+  end
+
+  def google_calendar_api(params, calendar_id)
+    service = Google::Apis::CalendarV3::CalendarService.new
+    service.client_options.application_name = @application_name
+    service.authorization = authorize()
+    service.authorization.refresh!
+    response = service.list_events(calendar_id, order_by: params[:order_by], show_deleted: params[:show_deleted], single_events: params[:single_events], time_max: params[:time_max], time_min: params[:time_min])
+    return response
+  end
+
     # Use callbacks to share common setup or constraints between actions.
     def set_event
       @event = Event.find(params[:id])

app/views/events/_calendar_list.html.erb

@@ -1,5 +1,5 @@
 <div id="external-calendars">
-<% User.current.calendars.each do |c| %>
+<% current_user.calendars.each do |c| %>
   <div>
   <font color=<%= c.color %>>■</font><%= c.displayname %>
   </div>