Add support for chat transcripts

(still needs to be implemented by providers)

app/controllers/public_controller.rb

@@ -0,0 +1,18 @@
+class DiscourseChat::PublicController < ApplicationController
+  requires_plugin DiscourseChat::PLUGIN_NAME
+
+  def post_transcript
+    params.require(:secret)
+
+    redis_key = "chat_integration:transcript:" + params[:secret]
+    content = $redis.get(redis_key)
+
+    if content
+      render json: {content: content}
+      return
+    end
+
+    raise Discourse::NotFound
+
+  end
+end

app/helpers/helper.rb

@@ -178,6 +178,14 @@ module DiscourseChat
 
     end
 
+    def self.save_transcript(transcript)
+      secret = SecureRandom.hex
+      redis_key = "chat_integration:transcript:" + secret
+      $redis.set(redis_key, transcript, {:ex => 3600}) # Expire in 1 hour
+
+      return secret
+    end
+
   end
 end
 

app/initializers/discourse_chat.rb

@@ -6,6 +6,11 @@ module ::DiscourseChat
     isolate_namespace DiscourseChat
   end
 
+  class PublicEngine < ::Rails::Engine
+    engine_name DiscourseChat::PLUGIN_NAME+"-public"
+    isolate_namespace DiscourseChat
+  end
+
   def self.plugin_name
     DiscourseChat::PLUGIN_NAME
   end
@@ -31,6 +36,7 @@ require_relative "../serializers/channel_serializer"
 require_relative "../serializers/rule_serializer"
 
 require_relative "../controllers/chat_controller"
+require_relative "../controllers/public_controller"
 
 require_relative "../routes/discourse_chat"
 require_relative "../routes/discourse"

app/routes/discourse.rb

@@ -1,4 +1,5 @@
 Discourse::Application.routes.append do
   mount ::DiscourseChat::AdminEngine, at: '/admin/plugins/chat', constraints: AdminConstraint.new
+  mount ::DiscourseChat::PublicEngine, at: '/chat-transcript/', as: 'chat-transcript'
   mount ::DiscourseChat::Provider::HookEngine, at: '/chat-integration/'
 end

app/routes/discourse_chat.rb

@@ -17,4 +17,8 @@ module DiscourseChat
 
     get "/:provider" => "chat#respond"
   end
+
+  PublicEngine.routes.draw do
+    get '/:secret' => "public#post_transcript"
+  end
 end

assets/javascripts/discourse/public-route-map.js.es6

@@ -0,0 +1,3 @@
+export default function() {
+	this.route('transcript', {path: '/chat-transcript/:secret'});
+};

assets/javascripts/discourse/routes/transcript.js.es6

@@ -0,0 +1,26 @@
+import { ajax } from 'discourse/lib/ajax';
+import { popupAjaxError } from 'discourse/lib/ajax-error';
+
+export default Discourse.Route.extend({
+  beforeModel: function(transition) {
+
+    if (Discourse.User.current()) {
+      var secret = transition.params.transcript.secret;
+      // User is logged in
+      this.replaceWith('discovery.latest').then(e => {
+        if (this.controllerFor('navigation/default').get('canCreateTopic')) {
+          // User can create topic
+          Ember.run.next(() => {
+            ajax("/chat-transcript/"+secret).then(result => {
+              e.send('createNewTopicViaParams', null, result['content'], null, null, null);
+            }, popupAjaxError);
+          });
+        }
+      });
+    } else {
+      // User is not logged in
+      this.session.set("shouldRedirectToUrl", window.location.href);
+      this.replaceWith('login');
+    }
+  }
+});

spec/controllers/public_controller_spec.rb

@@ -0,0 +1,30 @@
+require 'rails_helper'
+
+describe 'Public Controller', type: :request do
+  
+  before do
+    SiteSetting.chat_integration_enabled = true
+  end
+
+  describe 'loading a transcript' do
+    
+    it 'should be able to load a transcript' do
+      key = DiscourseChat::Helper.save_transcript("Some content here")
+
+      get "/chat-transcript/#{key}.json"
+
+      expect(response).to be_success
+
+      expect(response.body).to eq('{"content":"Some content here"}')
+    end
+
+    it 'should 404 for non-existant transcript' do
+      key = 'abcdefghijk'
+      get "/chat-transcript/#{key}.json"
+
+      expect(response).not_to be_success
+    end
+    
+  end
+
+end

spec/helpers/helper_spec.rb

@@ -301,4 +301,14 @@ RSpec.describe DiscourseChat::Manager do
     end
   end
 
+  describe '.save_transcript' do
+
+    it 'saves a transcript to redis' do
+      key = DiscourseChat::Helper.save_transcript("Some content here")
+
+      expect($redis.get("chat_integration:transcript:#{key}")).to eq("Some content here")
+      expect($redis.pttl("chat_integration:transcript:#{key}")).to eq(3600*1000)
+    end
+  end
+
 end