From 2b4c400dea2b1910a9972a991a320b3f6f827d06 Mon Sep 17 00:00:00 2001
From: Bin Le <bin.le.code@gmail.com>
Date: Mon, 15 Jun 2020 17:27:01 -0400
Subject: [PATCH 1/4] update ruby version and gemset

---
 .ruby-version | 2 +-
 Gemfile       | 2 +-
 Gemfile.lock  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.ruby-version b/.ruby-version
index a9eea9a..e4b8527 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-ruby-2.3.8
+ruby-2.4.9
diff --git a/Gemfile b/Gemfile
index be415d9..24266b5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.3.8'
+ruby '2.4.9'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 8e6cef6..b8616ce 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -232,7 +232,7 @@ DEPENDENCIES
   web-console (>= 3.3.0)
 
 RUBY VERSION
-   ruby 2.3.8p459
+   ruby 2.4.9p362
 
 BUNDLED WITH
    1.17.3

From 6f17843d3150432dc9928a699bfd492f1a46abed Mon Sep 17 00:00:00 2001
From: Bin Le <bin.le.code@gmail.com>
Date: Mon, 15 Jun 2020 17:27:18 -0400
Subject: [PATCH 2/4] add user seed data

---
 db/seeds.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/db/seeds.rb b/db/seeds.rb
index 1beea2a..bdedf93 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -5,3 +5,8 @@
 #
 #   movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }])
 #   Character.create(name: 'Luke', movie: movies.first)
+
+users = User.create([
+                        {name: 'Test user 1'},
+                        {name: 'Test user 2', email: 'test_user@testmicropost.com'}
+])

From 386abb8d45665edc3ded27befd703b95ecbaa2e3 Mon Sep 17 00:00:00 2001
From: Bin Le <bin.le.code@gmail.com>
Date: Mon, 15 Jun 2020 17:28:22 -0400
Subject: [PATCH 3/4] update ignore list

---
 .gitignore | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.gitignore b/.gitignore
index ec0b196..9f07894 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,8 @@
 
 # Ignore master key for decrypting credentials and more.
 /config/master.key
+
+# IDE files
+.idea
+
+

From e4369a5f69b108524d20ea1ff2b85f905f92f6e3 Mon Sep 17 00:00:00 2001
From: Bin Le <bin.le.code@gmail.com>
Date: Mon, 15 Jun 2020 18:28:46 -0400
Subject: [PATCH 4/4] test websocket rails channel

---
 app/assets/javascripts/channels/microposts.coffee | 11 +++++++++++
 app/channels/microposts_channel.rb                |  9 +++++++++
 app/controllers/microposts_controller.rb          |  9 +++++++++
 app/views/layouts/application.html.erb            |  9 +++++++++
 4 files changed, 38 insertions(+)
 create mode 100644 app/assets/javascripts/channels/microposts.coffee
 create mode 100644 app/channels/microposts_channel.rb

diff --git a/app/assets/javascripts/channels/microposts.coffee b/app/assets/javascripts/channels/microposts.coffee
new file mode 100644
index 0000000..685c5e7
--- /dev/null
+++ b/app/assets/javascripts/channels/microposts.coffee
@@ -0,0 +1,11 @@
+App.microposts = App.cable.subscriptions.create "MicropostsChannel",
+  connected: ->
+    # Called when the subscription is ready for use on the server
+
+  disconnected: ->
+    # Called when the subscription has been terminated by the server
+
+  received: (data) ->
+    # Called when there's incoming data on the websocket for this channel
+    document.getElementById("message-bar").innerText = data.text
+
diff --git a/app/channels/microposts_channel.rb b/app/channels/microposts_channel.rb
new file mode 100644
index 0000000..83bfc8e
--- /dev/null
+++ b/app/channels/microposts_channel.rb
@@ -0,0 +1,9 @@
+class MicropostsChannel < ApplicationCable::Channel
+  def subscribed
+    stream_from "microposts"
+  end
+
+  def unsubscribed
+    # Any cleanup needed when channel is unsubscribed
+  end
+end
diff --git a/app/controllers/microposts_controller.rb b/app/controllers/microposts_controller.rb
index d01c574..cfd828e 100644
--- a/app/controllers/microposts_controller.rb
+++ b/app/controllers/microposts_controller.rb
@@ -44,6 +44,15 @@ def update
       if @micropost.update(micropost_params)
         format.html { redirect_to @micropost, notice: 'Micropost was successfully updated.' }
         format.json { render :show, status: :ok, location: @micropost }
+
+        # action cable channel broadcasting
+        #
+        # @microposts = Micropost.all
+        #
+        # Broadcast messages typically consist of Ruby hashes, which are converted to JSON to
+        # go across the wire and end up as JavaScript objects.
+        ActionCable.server.broadcast 'microposts',
+                                     text: "post has been updated: #{@micropost.inspect}"
       else
         format.html { render :edit }
         format.json { render json: @micropost.errors, status: :unprocessable_entity }
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index ba7576e..fafb3c9 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -13,7 +13,16 @@
   <body>
 
     <section>
+      <!-- place holder for broadcast message from websocket (Rails channel) -->
+      <div id="message-container" class="jumbotron">
+        <p id="message-bar" class="text-info"></p>
+      </div>
+
       <div class="container">
+        <div class="page-header">
+          <h1>to be filled</h1>
+        </div>
+
         <%= yield %>
       </div>
     </section>