Add GCM push for pushing OneMDM app to devices

app/admin/dashboard.rb

@@ -3,31 +3,41 @@ ActiveAdmin.register_page "Dashboard" do
   menu priority: 1, label: proc{ I18n.t("active_admin.dashboard") }
 
   content title: proc{ I18n.t("active_admin.dashboard") } do
-    div class: "blank_slate_container", id: "dashboard_default_message" do
-      span class: "blank_slate" do
-        span I18n.t("active_admin.dashboard_welcome.welcome")
-        small I18n.t("active_admin.dashboard_welcome.call_to_action")
+
+  panel "Recent Pushes" do
+      table_for BatchInstallation.order('id desc').limit(10) do
+        column "Pushed on" do |batch|
+          batch.created_at
+        end
+        column "App Name" do |batch|
+          batch.app.name
+        end
+        column "# Devices" do |batch|
+          link_to batch.installations.count,
+            admin_devices_path(q: {installations_batch_installation_id_eq: batch.id})
+        end
+        column "# Installed" do |batch|
+          link_to batch.installations.installed.count,
+            admin_devices_path(q: {installations_batch_installation_id_eq: batch.id,
+                                 installations_status_eq: Installation.statuses[:installed]})
+        end
+        column "# Cancelled" do |batch|
+          link_to batch.installations.cancelled.count,
+            admin_devices_path(q: {installations_batch_installation_id_eq: batch.id,
+                                 installations_status_eq: Installation.statuses[:cancelled]})
+        end
+        column "# Pending" do |batch|
+          link_to batch.installations.pushed.count + batch.installations.downloaded.count,
+             admin_devices_path(q: {installations_batch_installation_id_eq: batch.id,
+                                 installations_status_in: [Installation.statuses[:pushed],
+                                                           Installation.statuses[:downloaded]]})
+        end
+        column "% Success" do |batch|
+          total = batch.installations.count
+          installed = batch.installations.installed.count
+          percentage_success = (installed/total) * 100 if total > 0
+        end
       end
-    end
-
-    # Here is an example of a simple dashboard with columns and panels.
-    #
-    # columns do
-    #   column do
-    #     panel "Recent Posts" do
-    #       ul do
-    #         Post.recent(5).map do |post|
-    #           li link_to(post.title, admin_post_path(post))
-    #         end
-    #       end
-    #     end
-    #   end
-
-    #   column do
-    #     panel "Info" do
-    #       para "Welcome to ActiveAdmin."
-    #     end
-    #   end
-    # end
+    end    
   end # content
 end

app/admin/device.rb

@@ -2,18 +2,21 @@ ActiveAdmin.register Device do
 
   actions :all, except: [:edit,:new]
 
-# See permitted parameters documentation:
-# https://github.com/activeadmin/activeadmin/blob/master/docs/2-resource-customization.md#setting-up-strong-parameters
-#
-# permit_params :list, :of, :attributes, :on, :model
-#
-# or
-#
-# permit_params do
-#   permitted = [:permitted, :attributes]
-#   permitted << :other if resource.something?
-#   permitted
-# end
+  app_data = lambda do
+    apps = App.order('name').reload.pluck(:name,:id)
+    {"App Name" => apps}
+  end
+
+  batch_action :push, confirm: "Select apps to push",form: app_data do |ids,inputs|
+    app = App.find(inputs["App Name"])
+    batch = BatchInstallation.create(:app => app)
+    ids.each do | id |
+      install = Installation.new(device: Device.find(id),batch_installation: batch)
+      install.pushed!
+    end
+    redirect_to admin_dashboard_path, notice: "Successfully pushed app to device(s)"
+  end
+  
   index do
     selectable_column
     id_column

app/controllers/application_controller.rb

@@ -17,4 +17,8 @@ class ApplicationController < ActionController::Base
   def render_unauthorized
     render json: "Bad token", status: :unauthorised
   end
+
+  def set_timezone_for_admin
+    Time.zone = "Mumbai"
+  end
 end

app/models/app.rb

@@ -1,4 +1,11 @@
 class App < ActiveRecord::Base
 
+  has_many :batch_installations, dependent: :destroy
+  
   validates :name, :package_name, presence: true
+
+  def apk_url
+    return DEFAULT_APP_URL if self.package_name.eql?(DEFAULT_APP_PACKAGE_NAME)
+    ""
+  end
 end

app/models/batch_installation.rb

@@ -1,3 +1,5 @@
 class BatchInstallation < ActiveRecord::Base
   belongs_to :app
+
+  has_many :installations, dependent: :destroy
 end

app/models/device.rb

@@ -10,6 +10,7 @@ class Device < ActiveRecord::Base
   after_create :update_last_heartbeats_time
   
   has_many :heartbeats, dependent: :destroy
+  has_many :installations, dependent: :destroy
   
   scope :active, -> {where("last_heartbeat_recd_time > '#{Time.now.utc - ACTIVE_TIMEFRAME}'")}
   scope :missing, -> {where("last_heartbeat_recd_time < '#{Time.now.utc - ACTIVE_TIMEFRAME}'AND last_heartbeat_recd_time > '#{Time.now.utc - MISSING_TIMEFRAME}'")}

app/models/installation.rb

@@ -1,9 +1,28 @@
 class Installation < ActiveRecord::Base
   enum status: [:pushed, :downloaded, :cancelled, :installed]
-
-
+  delegate :app, to: :batch_installation
 
   belongs_to :device
   belongs_to :batch_installation
 
+  after_create :push_apps
+  
+  def as_json(options={})
+    {
+      :id => self.id,
+      :name => self.app.name,
+      :package_name => self.app.package_name,
+      :apk_url => self.app.apk_url
+    }
+  end
+
+  def push_apps
+    if self.pushed?
+      gcm = GCM.new(GCM_KEY)
+      registration_ids = [self.device.gcm_token]
+      options = { data: {message: self.to_json }}
+      response = gcm.send(registration_ids, options)
+      logger.debug "response #{response}"
+    end
+  end
 end