added annotations, working on tests

app/adapters/joule/adapter.rb

@@ -45,7 +45,7 @@ module Joule
 #
 # raw data can be accessed using the joule cli, run:
 #
-# $> joule -u #{@backend.url} data read -s #{start_time} -e #{end_time} #{db_stream.path}
+# $> joule -n #{@backend.url} data read -s #{start_time} -e #{end_time} #{db_stream.path}
 #
 # ------------------------------------------"
     end
@@ -58,6 +58,22 @@ module Joule
       @backend.module_post_interface(joule_module, req)
     end
 
+    def create_annotation(annotation)
+      @backend.create_annotation(annotation)
+    end
+
+    def get_annotations(db_stream)
+      resp = @backend.get_annotations(db_stream.joule_id)
+      annotations = resp[:result]
+      annotations.each do |annotation|
+        annotation[:db_stream_id] = db_stream.id
+      end
+    end
+
+    def delete_annotation(annotation_id)
+      resp = @backend.delete_annotation(annotation_id)
+    end
+
     def node_type
       'joule'
     end

app/adapters/joule/backend.rb

@@ -173,5 +173,54 @@ module Joule
       end
       { error: false, msg: 'success' }
     end
+
+    def create_annotation(annotation)
+      data = {
+          'stream_id': annotation.db_stream.joule_id,
+          'title': annotation.title,
+          'content': annotation.content,
+          'start': annotation.start_time,
+          'end': annotation.end_time}
+      begin
+        response = self.class.post("#{@url}/annotation.json",
+                                   headers: { 'Content-Type' => 'application/json' },
+                                   body: data.to_json)
+      rescue
+        return { error: true, msg: 'cannot contact Joule server' }
+      end
+      unless response.success?
+        puts "#########"
+        puts response.body
+        return { error: true, msg: "error creating annotation" }
+      end
+      annotation.id = response.parsed_response["id"]
+      { error: false, msg: 'success' }
+    end
+
+    def get_annotations(stream_id)
+      query = {'stream_id': stream_id}
+      options = { query: query}
+      begin
+        resp = self.class.get("#{@url}/annotations.json", options)
+        return {success: false, result: resp.body} unless resp.success?
+      rescue
+        return {success: false, result: "connection error"}
+      end
+      annotations = resp.parsed_response
+
+      {success: true, result: annotations}
+    end
+
+    def delete_annotation(annotation_id)
+      query = {'id': annotation_id}
+      options = { query: query}
+      begin
+        resp = self.class.delete("#{@url}/annotation.json",
+                                 options)
+        return {success: false, result: resp.body} unless resp.success?
+      rescue
+        return {success: false, result: "connection error"}
+      end
+    end
   end
 end

app/controllers/annotations_controller.rb

+class AnnotationsController < ApplicationController
+  before_action :authenticate_user!
+  before_action :set_stream
+  before_action :create_adapter
+  before_action :authorize_owner, except: [:index]
+
+
+  # GET /stream/:stream_id/annotations.json
+  def index
+    annotations = @node_adapter.get_annotations(@db_stream)
+    @service = StubService.new
+    render json: annotations, status: @service.success? ? :ok : :unprocessable_entity
+  end
+
+  # POST /annotations.json
+  def create
+    @annotation = Annotation.new
+    @annotation.title = params[:title]
+    @annotation.content = params[:content]
+    @annotation.db_stream = @db_stream
+    @annotation.start_time = params[:start]
+    @annotation.end_time = params[:end]
+    status = @node_adapter.create_annotation(@annotation)
+    @service = StubService.new
+    render :show, status: @service.success? ? :ok : :unprocessable_entity
+  end
+
+  # PATCH/PUT /annotations/1.json
+  def update
+    @service = EditAnnotation.new(@node_adapter)
+    @service.run(params[:id], annotation_params)
+    render status: @service.success? ? :ok : :unprocessable_entity
+  end
+
+  # DELETE /annotations/1.json
+  def destroy
+    status = @node_adapter.delete_annotation(params[:id])
+    @service = StubService.new
+    render 'helpers/empty_response', status: :ok
+  end
+
+  private
+
+  def annotation_params
+    params.permit(:title, :content, :start, :end, :db_stream_id)
+  end
+
+  def set_stream
+    @db_stream = DbStream.find(params[:db_stream_id])
+    @db = @db_stream.db
+    @nilm = @db.nilm
+  end
+
+  # authorization based on nilms
+  def authorize_owner
+    head :unauthorized  unless current_user.owns_nilm?(@nilm)
+  end
+
+  def create_adapter
+    @node_adapter = NodeAdapterFactory.from_nilm(@nilm)
+    if @node_adapter.nil?
+      @service = StubService.new
+      @service.add_error("Cannot contact installation")
+      render 'helpers/empty_response', status: :unprocessable_entity
+    end
+  end
+end

app/models/annotation.rb

+class Annotation
+
+  attr_accessor :id
+  attr_accessor :title
+  attr_accessor :content
+  attr_accessor :start_time
+  attr_accessor :end_time
+  attr_accessor :db_stream
+end
\ No newline at end of file

app/services/annotations/create_annotation.rb

+# frozen_string_literal: true
+
+class CreateAnnotation
+  include ServiceStatus
+  attr_reader :nilm
+
+  def initialize(node_adapter)
+    super()
+    @node_adapter = node_adapter
+  end
+
+  def run(db_stream, annotation)
+    status = @node_adapter.create_annotation(@annotation)
+    # if there was an error don't save the model
+    if status[:error]
+      add_error(status[:msg])
+      return self
+    end
+    add_warnings(msgs.errors + msgs.warnings)
+    add_notice('Created annotation')
+    self
+  end
+end

app/views/annotations/show.json.jbuilder

+json.data do
+  json.id @annotation.id
+  json.title @annotation.title
+  json.content @annotation.content
+  json.start @annotation.start_time
+  json.end @annotation.end_time
+  json.db_stream_id @db_stream.id
+end
+
+json.partial! "helpers/messages", service: @service
\ No newline at end of file

config/application.rb

@@ -35,7 +35,7 @@ module ControlPanel
     config.middleware.use ActionDispatch::Cookies
     config.middleware.use ActionDispatch::Session::CookieStore
     # Add folders under the services and adapters directory
-    %w(data nilm db db_folder db_stream permission user_group user data_view joule_modules).each do |service|
+    %w(annotations data nilm db db_folder db_stream permission user_group user data_view joule_modules).each do |service|
       config.autoload_paths << Rails.root.join("app/services/#{service}")
     end
     config.autoload_paths << Rails.root.join("app/adapters/nilmdb")

config/routes.rb

@@ -16,10 +16,12 @@ Rails.application.routes.draw do
 
   resources :db_folders, only: [:show, :update]
   resources :db_streams, only: [:index, :update] do
+    resources :annotations, except: [:show]
     member do
       post 'data'
     end
   end
+
   resources :db_elements, only: [:index] do
     collection do
       get 'data'

spec/controllers/annotations_controller_spec.rb

+require 'rails_helper'
+
+RSpec.describe AnnotationsController, type: :controller do
+
+end