Add a printer job queue via the printer plugin

plugins/printer/app/controllers/printer_controller.rb

@@ -0,0 +1,58 @@
+class PrinterController < ApplicationController
+  include Concerns::SendOrderPdf
+  include Tubesock::Hijack
+
+  skip_before_filter :authenticate
+  before_filter :authenticate_printer
+  before_filter -> { require_plugin_enabled FoodsoftPrinter }
+
+  def socket
+    hijack do |tubesock|
+      tubesock.onopen do
+        tubesock.send_data unfinished_jobs
+      end
+
+      tubesock.onmessage do |data|
+        update_job data
+        tubesock.send_data unfinished_jobs
+      end
+    end
+  end
+
+  def show
+    job = PrinterJob.find(params[:id])
+    send_order_pdf job.order, job.document
+  end
+
+  private
+
+  def unfinished_jobs
+    {
+      unfinished_jobs: PrinterJob.pending.map(&:id)
+    }.to_json
+  end
+
+  def update_job(data)
+    json = JSON.parse data, symbolize_names: true
+    job = PrinterJob.unfinished.find_by_id(json[:id])
+    return unless job
+    if json[:state]
+      job.add_update! json[:state], json[:message]
+    end
+    job.finish! if json[:finish]
+  end
+
+  protected
+
+  def bearer_token
+    pattern = /^Bearer /
+    header  = request.headers['Authorization']
+    header.gsub(pattern, '') if header && header.match(pattern)
+  end
+
+  def authenticate_printer
+    return head(:unauthorized) unless bearer_token
+    return head(:forbidden) if bearer_token != FoodsoftConfig[:printer_token]
+  end
+
+end

plugins/printer/app/controllers/printer_jobs_controller.rb

@@ -0,0 +1,44 @@
+class PrinterJobsController < ApplicationController
+  include Concerns::SendOrderPdf
+
+  before_filter -> { require_plugin_enabled FoodsoftPrinter }
+
+  def index
+    jobs = PrinterJob.includes(:printer_job_updates)
+    @pending_jobs = jobs.pending
+    @queued_jobs = jobs.queued
+    @finished_jobs = jobs.finished.order(finished_at: :desc).page(params[:page]).per(@per_page)
+  end
+
+  def create
+    order = Order.find(params[:order])
+    state = order.open? ? 'queued' : 'ready'
+    count = 0
+    PrinterJob.transaction do
+      %w(articles fax groups matrix).each do |document|
+        next unless FoodsoftConfig["printer_print_order_#{document}"]
+        job = PrinterJob.create! order: order, document: document, created_by: current_user
+        job.add_update! state
+        count += 1
+      end
+    end
+    redirect_to order, notice: t('.notice', count: count)
+  end
+
+  def show
+    @job = PrinterJob.find(params[:id])
+  end
+
+  def document
+    job = PrinterJob.find(params[:id])
+    send_order_pdf job.order, job.document
+  end
+
+  def destroy
+    job = PrinterJob.find(params[:id])
+    job.finish! current_user
+    redirect_to printer_jobs_path, notice: t('.notice')
+  rescue => error
+    redirect_to printer_jobs_path, t('errors.general_msg', msg: error.message)
+  end
+end

plugins/printer/app/models/printer_job.rb

@@ -0,0 +1,31 @@
+class PrinterJob < ActiveRecord::Base
+
+  belongs_to :order
+  belongs_to :created_by, class_name: 'User', foreign_key: 'created_by_user_id'
+  belongs_to :finished_by, class_name: 'User', foreign_key: 'finished_by_user_id'
+  has_many :printer_job_updates
+
+  scope :finished, -> { where.not(finished_at: nil) }
+  scope :unfinished, -> { where(finished_at: nil).order(:id) }
+  scope :pending, -> { unfinished.includes(:order).where.not(orders: {state: 'open'}) }
+  scope :queued, -> { unfinished.includes(:order).where(orders: {state: 'open'}) }
+
+  def last_update_at
+    printer_job_updates.order(:created_at).last.try(&:created_at)
+  end
+
+  def last_update_state
+    printer_job_updates.order(:created_at).last.try(&:state)
+  end
+
+  def add_update!(state, message=nil)
+    return unless finished_at.nil?
+    PrinterJobUpdate.create! printer_job: self, state: state, message: message
+  end
+
+  def finish!(user=nil)
+    return unless finished_at.nil?
+    update_attributes finished_at: Time.now, finished_by: user
+  end
+
+end

plugins/printer/app/models/printer_job_update.rb

@@ -0,0 +1,5 @@
+class PrinterJobUpdate < ActiveRecord::Base
+
+  belongs_to :printer_job
+
+end

plugins/printer/app/overrides/admin/configs/_tab_others/add_printer_config.html.haml.deface

@@ -0,0 +1,7 @@
+/ insert_after ':root:last-child'
+= config_use_heading form, :use_printer do
+  = config_input form, :printer_token, as: :string, input_html: {class: 'input-xlarge'}
+  = config_input form, :printer_print_order_fax, as: :boolean
+  = config_input form, :printer_print_order_articles, as: :boolean
+  = config_input form, :printer_print_order_groups, as: :boolean
+  = config_input form, :printer_print_order_matrix, as: :boolean

plugins/printer/app/overrides/orders/show/add_print_button.html.haml.deface

@@ -0,0 +1,7 @@
+/ insert_after 'erb:contains("title t(\'.title\'")'
+- content_for :actionbar do
+  - if FoodsoftPrinter.enabled?
+    = link_to content_tag(:i, nil, class: 'icon-print'), printer_jobs_path(order: @order), method: :post,
+      class: "btn#{' btn-primary' unless @order.printer_jobs.any?}",
+      data: {confirm: @order.printer_jobs.any? && t('.confirm_create_printer_job') },
+      title: t('helpers.submit.printer_job.create')

plugins/printer/app/views/printer_jobs/_jobs.html.haml

@@ -0,0 +1,22 @@
+.pull-right
+  - if @finished_jobs.total_pages > 1
+    .btn-group= items_per_page wrap: false
+= pagination_links_remote @finished_jobs
+%table.table.table-striped
+  %thead
+    %tr
+      %th= heading_helper(PrinterJob, :id)
+      %th= heading_helper(PrinterJob, :order)
+      %th= heading_helper(PrinterJob, :pickup)
+      %th= heading_helper(PrinterJob, :document)
+      %th= heading_helper(PrinterJob, :last_update_state)
+      %th= heading_helper(PrinterJob, :finished_at)
+  %tbody
+    - @finished_jobs.each do |j|
+      %tr
+        %td= link_to j.id, j
+        %td= link_to j.order.supplier.name, j.order
+        %td= format_date j.order.pickup
+        %td= link_to j.document, document_printer_job_path(j)
+        %td= j.last_update_state
+        %td= format_time j.finished_at

plugins/printer/app/views/printer_jobs/index.html.haml

@@ -0,0 +1,47 @@
+- title t('.title')
+
+- unless @pending_jobs.empty? && @queued_jobs.empty?
+  .well
+    %h2
+      - if @pending_jobs.any?
+        =t '.pending'
+      - else
+        =t '.queued'
+    %table.table.table-striped
+      %thead
+        %tr
+          %th= heading_helper(PrinterJob, :id)
+          %th= heading_helper(PrinterJob, :order)
+          %th= heading_helper(PrinterJob, :pickup)
+          %th= heading_helper(PrinterJob, :document)
+          %th= heading_helper(PrinterJob, :last_update_at)
+          %th= heading_helper(PrinterJob, :last_update_state)
+          %th
+      %tbody
+        - @pending_jobs.each do |j|
+          %tr
+            %td= link_to j.id, j
+            %td= link_to j.order.supplier.name, j.order
+            %td= format_date j.order.pickup
+            %td= link_to j.document, document_printer_job_path(j)
+            %td= format_time j.last_update_at
+            %td= j.last_update_state
+            %td= link_to t('ui.delete'), j, method: :delete, data: {:confirm => t('ui.confirm_delete', name: j.id)},
+                  class: 'btn btn-mini btn-danger'
+        - if @pending_jobs.any?
+          %tr
+            %td{colspan: 7}
+              %h2= t '.queued'
+        - @queued_jobs.each do |j|
+          %tr
+            %td= link_to j.id, j
+            %td= link_to j.order.supplier.name, j.order
+            %td= format_date j.order.pickup
+            %td= link_to j.document, document_printer_job_path(j)
+            %td= format_time j.last_update_at
+            %td= j.last_update_state
+            %td= link_to t('ui.delete'), j, method: :delete, data: {:confirm => t('ui.confirm_delete', name: j.id)},
+                  class: 'btn btn-mini btn-danger'
+
+%h2= t '.finished'
+#jobsTable= render 'jobs'

plugins/printer/app/views/printer_jobs/index.js.haml

@@ -0,0 +1 @@
+$('#jobsTable').html('#{j(render('jobs'))}');

plugins/printer/app/views/printer_jobs/show.html.haml

@@ -0,0 +1,36 @@
+- title t('.title', id: @job.id)
+
+%p
+  %b= heading_helper(PrinterJob, :created_by) + ':'
+  = show_user @job.created_by
+%p
+  %b= heading_helper(PrinterJob, :order) + ':'
+  = @job.order.supplier.name
+%p
+  %b= heading_helper(PrinterJob, :pickup) + ':'
+  = @job.order.pickup
+%p
+  %b= heading_helper(PrinterJob, :document) + ':'
+  = @job.document
+- if @job.finished_at
+  %p
+    %b= heading_helper(PrinterJob, :finished_at) + ':'
+    = format_time @job.finished_at
+- if @job.finished_by
+  %p
+    %b= heading_helper(PrinterJob, :finished_by) + ':'
+    = show_user @job.finished_by
+
+
+%table.table.table-striped
+  %thead
+    %tr
+      %th= heading_helper(PrinterJobUpdate, :created_at)
+      %th= heading_helper(PrinterJobUpdate, :state)
+      %th= heading_helper(PrinterJobUpdate, :message)
+  %tbody
+    - @job.printer_job_updates.each do |u|
+      %tr
+        %td= format_time u.created_at
+        %td= u.state
+        %td= u.message