merge automatic group order invoice generation

see https://github.com/foodcoops/foodsoft/pull/907 for reference
and original work by viehlieb

Co-authored-by: viehlieb <pf@pragma-shift.net>

fix PDF Pdf

make explicit deposit in invoices work

add ordergroupname to invoice file name

mark bold sum for vat exempt foodcoops

download multiple group order invoice as zip

app/controllers/group_order_invoices_controller.rb

@@ -0,0 +1,87 @@
+class GroupOrderInvoicesController < ApplicationController
+  include Concerns::SendGroupOrderInvoicePdf
+  before_action :authenticate_finance
+
+  def show
+    begin
+      @group_order_invoice = GroupOrderInvoice.find(params[:id])
+      if FoodsoftConfig[:contact][:tax_number]
+        respond_to do |format|
+          format.pdf do
+            send_group_order_invoice_pdf @group_order_invoice if FoodsoftConfig[:contact][:tax_number]
+          end
+        end
+      else
+        raise RecordInvalid
+      end
+    rescue ActiveRecord::RecordInvalid => error
+      redirect_back fallback_location: root_path, notice: 'Something went wrong', alert: I18n.t('errors.general_msg', msg: "#{error} " + I18n.t('errors.check_tax_number'))
+    end
+  end
+
+  def destroy
+    goi = GroupOrderInvoice.find(params[:id])
+    @order = goi.group_order.order
+    goi.destroy
+    respond_to do |format|
+      format.js
+      format.json { head :no_content }
+    end
+  end
+
+  def create_multiple
+    invoice_date = params[:group_order_invoice][:invoice_date]
+    order_id = params[:group_order_invoice][:order_id]
+    @order = Order.find(order_id)
+    gos = GroupOrder.where("order_id = ?", order_id)
+    gos.each do |go|
+      goi = GroupOrderInvoice.find_or_create_by!(group_order_id: go.id)
+      goi.invoice_date = invoice_date
+      goi.invoice_number = goi.generate_invoice_number(1)
+      goi.save!
+    end
+    respond_to do |format|
+      format.js
+    end
+  end
+
+  def create
+    go = GroupOrder.find(params[:group_order])
+    @order = go.order
+    GroupOrderInvoice.find_or_create_by!(group_order_id: go.id)
+    respond_to do |format|
+      format.js
+    end
+    redirect_back fallback_location: root_path
+  rescue => error
+    redirect_back fallback_location: root_path, notice: 'Something went wrong', :alert => I18n.t('errors.general_msg', :msg => error)
+  end
+
+  def download_all
+    order = Order.find(params[:order_id])
+
+    invoices = order.group_orders.map(&:group_order_invoice)
+    pdf = {}
+
+    temp_file = Tempfile.new("all_invoices_for_order_#{order.id}.zip")
+
+    Zip::File.open(temp_file.path, Zip::File::CREATE) do |zipfile|
+      invoices.each do |invoice|
+        pdf = create_invoice_pdf(invoice)
+        invoice_file = Tempfile.new("#{pdf.filename}")
+        File.open(invoice_file.path, 'w:ASCII-8BIT') do |file|
+          file.write(pdf.to_pdf)
+        end
+        zipfile.add("#{pdf.filename}", invoice_file.path) unless zipfile.find_entry("#{pdf.filename}")
+      end
+    end
+
+    zip_data = File.read(temp_file.path)
+
+    respond_to do |format|
+      format.html {
+        send_data(zip_data, type: 'application/zip', filename: "#{l order.ends, format: :file}-#{order.supplier.name}-#{order.id}.zip", disposition: 'attachment')
+      }
+    end
+  end
+end