Removed unused method

app/controllers/estimate_controller.rb

@@ -8,71 +8,72 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 class EstimateController < ApplicationController
-  
   include AuthHelper
+
+  before_action :require_user, unless: -> { session[:token].nil? }
+  skip_before_action :verify_authenticity_token, :check_if_login_required, unless: -> { session[:token].nil? }
+  before_action :load_estimate, only: [:show, :doc]
   
-  before_action :require_user, unless: proc {|c| session[:token].nil? }
-  skip_before_action :verify_authenticity_token, :check_if_login_required, unless: proc {|c| session[:token].nil? }
-
-  def get_estimate
-    log "Searching for estimate with params: #{params.inspect}"
-
-    e = Estimate.find_by_doc_number(params[:search]) if params[:search]
-    e = Estimate.find_by_id(params[:id]) if params[:id]
-
-    # Force sync for estimate by doc number if not found
-    if  e.nil? && params[:search]
-      begin
-        Estimate.sync_by_doc_number(params[:search])
-        e = Estimate.find_by_doc_number(params[:search])
-      rescue
-        log "Estimate.find_by_doc_number failed"
-      end
-    end
-
-    # Force sync for estimate by id if not found
-    if  e.nil? && params[:id]
-      begin
-        Estimate.sync_by_id(params[:id])
-        e = Estimate.find_by_id(params[:id])
-      rescue
-        log "Estimate.find_by_id failed"
-      end
-    end
-
-    return e
-  end
-  
-  #
-  # Downloads and forwards the estimate pdf
-  #
-  def show
-    estimate = get_estimate
-
-    begin
-      send_data estimate.pdf, filename: "estimate #{estimate.doc_number}.pdf", disposition: :inline, type: "application/pdf"
-    rescue
-      redirect_to :back, flash: { error: I18n.t(:notice_estimate_not_found) }
-    end
-  end
-
-  #
-  # Downloads estimate by document number
-  #
+  # Displays the estimate PDF in the browser or redirects with an error if not found.
   def doc
-    estimate = get_estimate
-    
-    begin
-      send_data estimate.pdf, filename: "estimate #{estimate.doc_number}.pdf", disposition: :inline, type: "application/pdf"
-    rescue
-      redirect_to :back, flash: { error: I18n.t(:notice_estimate_not_found) }
-    end
+    render_pdf(@estimate)
+  end
+
+  # Displays the estimate PDF in the browser or redirects with an error if not found.
+  def show
+    render_pdf(@estimate)
   end
 
   private
 
+  # Loads the estimate based on ID or doc number, with a fallback to sync if not found locally.
+  def load_estimate
+    log "Attempting to load Estimate with params: #{params.inspect}"
+    @estimate = find_estimate || sync_and_find_estimate
+
+    unless @estimate
+      redirect_back fallback_location: root_path, flash: { error: I18n.t(:notice_estimate_not_found) }
+    end
+  end
+
+  # Attempts to find the estimate locally by ID or doc number.
+  def find_estimate
+    return Estimate.find_by(doc_number: params[:search]) if params[:search].present?
+    return Estimate.find_by(id: params[:id]) if params[:id].present?
+  end
+
+  # If the estimate is not found locally, attempts to sync it from the source and find it again.
+  def sync_and_find_estimate
+
+    if params[:search].present?
+      log "Estimate #{params[:search]} not found locally. Syncing by doc number."
+      Estimate.sync_by_doc_number(params[:search])
+      return Estimate.find_by(doc_number: params[:search])
+    end
+
+    if params[:id].present?
+      log "Estimate #{params[:id]} not found locally. Syncing by ID."
+      Estimate.sync_by_id(params[:id])
+      return Estimate.find_by(id: params[:id])
+    end
+
+    nil
+  rescue StandardError => e
+    log "Estimate sync failed: #{e.message}"
+    nil
+  end
+
+  # Renders the estimate PDF or redirects with an error if rendering fails.
+  def render_pdf(estimate)
+    pdf, ref = EstimatePdfService.new(qbo: Qbo.first).fetch_pdf(doc_ids: [estimate.id])
+    send_data( pdf, filename: "estimate #{ref}.pdf", disposition: :inline, type: "application/pdf" )
+  rescue StandardError => e
+    log "PDF render failed for Estimate #{estimate&.id}: #{e.message}"
+    redirect_back fallback_location: root_path, flash: { error: I18n.t(:notice_estimate_not_found) }
+  end
+
+  # Logs messages with a consistent prefix for easier debugging.
   def log(msg)
     Rails.logger.info "[EstimateController] #{msg}"
   end
-
-end
+end

app/controllers/invoice_controller.rb

@@ -8,53 +8,29 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 class InvoiceController < ApplicationController
-  
   include AuthHelper
-  require 'combine_pdf'
 
-  before_action :require_user, unless: proc {|c| session[:token].nil? }
-  skip_before_action :verify_authenticity_token, :check_if_login_required, unless: proc {|c| session[:token].nil? }
-  
-  #
-  # Downloads and forwards the invoice pdf
-  #
+  before_action :require_user, unless: -> { session[:token].nil? }
+  skip_before_action :verify_authenticity_token, :check_if_login_required, unless: -> { session[:token].nil? }
+
+  # Displays the invoice PDF in the browser or redirects with an error if not found.
   def show
-    log "Processing request for URL: #{request.original_url}" 
-    begin
-      qbo = Qbo.first
-        qbo.perform_authenticated_request do |access_token|
-        service = Quickbooks::Service::Invoice.new(company_id: qbo.realm_id, access_token: access_token)
-        
-        # If multiple id's then pull each pdf & combine them
-        if params[:invoice_ids]
-          log "Grabbing pdfs for " + params[:invoice_ids].join(', ')
-          ref = ""
-          params[:invoice_ids].each do |i|
-            log "processing " + i
-            invoice = service.fetch_by_id(i)
-            ref += " #{invoice.doc_number}"
-            @pdf << CombinePDF.parse(service.pdf(invoice)) unless @pdf.nil?
-            if @pdf.nil?
-              @pdf = CombinePDF.parse(service.pdf(invoice))
-            end
-          end
-          @pdf = @pdf.to_pdf
-        else
-          invoice = service.fetch_by_id(params[:id])
-          @pdf = service.pdf(invoice)
-          ref = invoice.doc_number
-        end
+    log "Processing request for #{request.original_url}"
 
-        send_data @pdf, filename: "invoice #{ref}.pdf", disposition: :inline, type: "application/pdf"
-      end
-    rescue
-      redirect_to :back, flash: { error: I18n.t(:notice_invoice_not_found) }
-    end
+    invoice_ids = Array(params[:invoice_ids] || params[:id])
+    pdf, ref = InvoicePdfService.new(qbo: Qbo.first).fetch_pdf(doc_ids: invoice_ids)
+
+    send_data pdf, filename: "invoice #{ref}.pdf", disposition: :inline, type: "application/pdf"
+
+  rescue StandardError => e
+    log "Invoice PDF failure: #{e.message}"
+    redirect_back fallback_location: root_path, flash: { error: I18n.t(:notice_invoice_not_found) }
   end
 
   private
 
+  # Logs messages with a consistent prefix for easier debugging.
   def log(msg)
     Rails.logger.info "[InvoiceController] #{msg}"
   end
-end
+end

app/jobs/bill_issue_time_job.rb

@@ -10,6 +10,7 @@
 
 class BillIssueTimeJob < ActiveJob::Base
   queue_as :default
+  retry_on StandardError, wait: 5.minutes, attempts: 5
 
   # Perform billing of unbilled time entries for a given issue by creating corresponding TimeActivity records in QuickBooks Online, and then marking those entries as billed in Redmine. This job is typically triggered after an invoice is created or updated to ensure all relevant time is captured for billing.
   def perform(issue_id)

app/jobs/customer_sync_job.rb

@@ -15,7 +15,7 @@ class CustomerSyncJob < ApplicationJob
   # Perform a full sync of all customers, or an incremental sync of only those updated since the last sync
   def perform(full_sync: false, id: nil)
     qbo = Qbo.first
-    return unless qbo
+    raise "No QBO configuration found" unless qbo
 
     log "Starting #{full_sync ? 'full' : 'incremental'} sync for customer ##{id || 'all'}..."
 

app/jobs/employee_sync_job.rb

@@ -12,9 +12,10 @@ class EmployeeSyncJob < ApplicationJob
   queue_as :default
   retry_on StandardError, wait: 5.minutes, attempts: 5
 
+  # Performs a sync of employees from QuickBooks Online.
   def perform(full_sync: false, id: nil)
     qbo = Qbo.first
-    return unless qbo
+    raise "No QBO configuration found" unless qbo
 
     log "Starting #{full_sync ? 'full' : 'incremental'} sync for employee ##{id || 'all'}..."
 

app/jobs/estimate_sync_job.rb

@@ -12,9 +12,10 @@ class EstimateSyncJob < ApplicationJob
   queue_as :default
   retry_on StandardError, wait: 5.minutes, attempts: 5
 
+  # Performs a sync of estimates from QuickBooks Online.
   def perform(full_sync: false, id: nil, doc_number: nil)
     qbo = Qbo.first
-    return unless qbo
+    raise "No QBO configuration found" unless qbo
 
     log "Starting #{full_sync ? 'full' : 'incremental'} sync for estimate ##{id || doc_number || 'all'}..."
 

app/jobs/invoice_sync_job.rb

@@ -12,9 +12,10 @@ class InvoiceSyncJob < ApplicationJob
   queue_as :default
   retry_on StandardError, wait: 5.minutes, attempts: 5
 
+  # Performs a sync of invoices from QuickBooks Online.
   def perform(full_sync: false, id: nil)
     qbo = Qbo.first
-    return unless qbo
+    raise "No QBO configuration found" unless qbo
 
     log "Starting #{full_sync ? 'full' : 'incremental'} sync for invoice ##{id || 'all'}..."
 

app/jobs/webhook_process_job.rb

@@ -10,6 +10,7 @@
 
 class WebhookProcessJob < ActiveJob::Base
   queue_as :default
+  retry_on StandardError, wait: 5.minutes, attempts: 5
 
   ALLOWED_ENTITIES = %w[
     Customer

app/models/estimate.rb

@@ -35,17 +35,6 @@ class Estimate < ActiveRecord::Base
     EstimateSyncJob.perform_later(doc_number: number)
   end
 
-  # download the pdf from quickbooks
-  def pdf
-    log "Downloading PDF for estimate ##{self.id}..."
-    qbo = Qbo.first
-    qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Estimate.new(company_id: qbo.realm_id, access_token: access_token)
-      estimate = service.fetch_by_id(id)
-      service.pdf(estimate)
-    end
-  end
-
   # Magic Method
   # Maps Get/Set methods to QBO estimate object
   def method_missing(sym, *arguments)

app/services/customer_sync_service.rb

@@ -8,88 +8,25 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-class CustomerSyncService
-  PAGE_SIZE = 1000
-
-  def initialize(qbo:)
-    @qbo = qbo
-  end
-
-  # Sync all customers, or only those updated since the last sync
-  def sync(full_sync: false)
-    log "Starting #{full_sync ? 'full' : 'incremental'} customer sync"
-
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Customer.new(company_id: @qbo.realm_id, access_token: access_token)
-
-      page = 1
-      loop do
-        collection = fetch_page(service, page, full_sync)
-        entries = Array(collection&.entries)
-        break if entries.empty?
-
-        entries.each { |remote| persist(remote) }
-
-        break if entries.size < PAGE_SIZE
-        page += 1
-      end
-    end
-
-    log "Customer sync complete"
-  end
-
-  # Sync a single customer by its QBO ID, used for webhook updates
-  def sync_by_id(id)
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Customer.new(company_id: @qbo.realm_id, access_token: access_token)
-      remote = service.fetch_by_id(id)
-      persist(remote)
-    end
-  end
+class CustomerSyncService < SyncServiceBase
 
   private
 
-  # Fetch a page of customers, either all or only those updated since the last sync
-  def fetch_page(service, page, full_sync)
-    start_position = (page - 1) * PAGE_SIZE + 1
-
-    if full_sync
-      service.query("SELECT * FROM Customer STARTPOSITION #{start_position} MAXRESULTS #{PAGE_SIZE}")
-    else
-      last_update = Customer.maximum(:updated_at) || 1.year.ago
-      service.query(<<~SQL.squish)
-        SELECT * FROM Customer
-        WHERE MetaData.LastUpdatedTime > '#{last_update.utc.iso8601}'
-        STARTPOSITION #{start_position}
-        MAXRESULTS #{PAGE_SIZE}
-      SQL
-    end
+  # Specify the local model this service syncs
+  def self.model_class
+    Customer
   end
 
-  # Create or update a local Customer record based on the QBO remote data
-  def persist(remote)
-    local = Customer.find_or_initialize_by(id: remote.id)
-
-    if remote.active?
-      local.name = remote.display_name
-      local.phone_number = remote.primary_phone&.free_form_number&.gsub(/\D/, '')
-      local.mobile_phone_number = remote.mobile_phone&.free_form_number&.gsub(/\D/, '')
-
-      if local.changed?
-        local.save
-        log "Updated customer #{remote.id}"
-      end
-    else
-      if local.persisted?
-        local.destroy
-        log "Deleted customer #{remote.id}"
-      end
-    end
-  rescue => e
-    log "Failed to sync customer #{remote.id}: #{e.message}"
+  # Determine if the remote entity should be deleted locally (e.g. if it's marked inactive in QBO)
+  def destroy_remote?(remote)
+    !remote.active?
   end
 
-  def log(msg)
-    Rails.logger.info "[CustomerSyncService] #{msg}"
+  # Map relevant attributes from the QBO Customer to the local Customer model
+  def process_attributes(local, remote)
+    local.name = remote.display_name
+    local.phone_number = remote.primary_phone&.free_form_number&.gsub(/\D/, '')
+    local.mobile_phone_number = remote.mobile_phone&.free_form_number&.gsub(/\D/, '')
   end
+
 end

app/services/employee_sync_service.rb

@@ -8,86 +8,23 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-class EmployeeSyncService
-  PAGE_SIZE = 1000
-
-  def initialize(qbo:)
-    @qbo = qbo
-  end
-
-  # Sync all employees, or only those updated since the last sync
-  def sync(full_sync: false)
-    log "Starting #{full_sync ? 'full' : 'incremental'} employee sync"
-
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Employee.new(company_id: @qbo.realm_id, access_token: access_token)
-
-      page = 1
-      loop do
-        collection = fetch_page(service, page, full_sync)
-        entries = Array(collection&.entries)
-        break if entries.empty?
-
-        entries.each { |remote| persist(remote) }
-
-        break if entries.size < PAGE_SIZE
-        page += 1
-      end
-    end
-
-    log "Employee sync complete"
-  end
-
-  # Sync a single employee by its QBO ID, used for webhook updates
-  def sync_by_id(id)
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Employee.new(company_id: @qbo.realm_id, access_token: access_token)
-      remote = service.fetch_by_id(id)
-      persist(remote)
-    end
-  end
+class EmployeeSyncService < SyncServiceBase
 
   private
 
-  # Fetch a page of employees, either all or only those updated since the last sync
-  def fetch_page(service, page, full_sync)
-    start_position = (page - 1) * PAGE_SIZE + 1
-
-    if full_sync
-      service.query("SELECT * FROM Employee STARTPOSITION #{start_position} MAXRESULTS #{PAGE_SIZE}")
-    else
-      last_update = Employee.maximum(:updated_at) || 1.year.ago
-      service.query(<<~SQL.squish)
-        SELECT * FROM Employee
-        WHERE MetaData.LastUpdatedTime > '#{last_update.utc.iso8601}'
-        STARTPOSITION #{start_position}
-        MAXRESULTS #{PAGE_SIZE}
-      SQL
-    end
+  # Specify the local model this service syncs
+  def self.model_class
+    Employee
   end
 
-  # Create or update a local Employee record based on the QBO remote data
-  def persist(remote)
-    local = Employee.find_or_initialize_by(id: remote.id)
-
-    if remote.active?
-      local.name = remote.display_name
-
-      if local.changed?
-        local.save
-        log "Updated employee #{remote.id}"
-      end
-    else
-      if local.persisted?
-        local.destroy
-        log "Deleted employee #{remote.id}"
-      end
-    end
-  rescue => e
-    log "Failed to sync employee #{remote.id}: #{e.message}"
+  # Determine if the remote entity should be deleted locally (e.g. if it's marked inactive in QBO)
+  def destroy_remote?(remote)
+    !remote.active?
   end
 
-  def log(msg)
-    Rails.logger.info "[EmployeeSyncService] #{msg}"
+  # Map relevant attributes from the QBO Employee to the local Employee model
+  def process_attributes(local, remote)
+    local.name = remote.display_name
   end
+
 end

app/services/estimate_pdf_service.rb

@@ -0,0 +1,16 @@
+#The MIT License (MIT)
+#
+#Copyright (c) 2016 - 2026 rick barrette
+#
+#Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+#
+#The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+#
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+class EstimatePdfService < PdfServiceBase
+
+  def self.model_class
+    Estimate
+  end
+
+end

app/services/estimate_sync_service.rb

@@ -8,95 +8,20 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-class EstimateSyncService
-  PAGE_SIZE = 1000
-
-  def initialize(qbo:)
-    @qbo = qbo
-  end
-
-  # Sync all estimates, or only those updated since the last sync
-  def sync(full_sync: false)
-    log "Starting #{full_sync ? 'full' : 'incremental'} estimate sync"
-
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Estimate.new(company_id: @qbo.realm_id, access_token: access_token)
-
-      page = 1
-      loop do
-        collection = fetch_page(service, page, full_sync)
-        entries = Array(collection&.entries)
-        break if entries.empty?
-
-        entries.each { |remote| persist(remote) }
-
-        break if entries.size < PAGE_SIZE
-        page += 1
-      end
-    end
-
-    log "Estimate sync complete"
-  end
-
-  # Sync a single estimate by its QBO ID, used for webhook updates
-  def sync_by_doc(doc_number)
-    log "Syncing estimate by doc_number: #{doc_number}"
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Estimate.new(company_id: @qbo.realm_id, access_token: access_token)
-      remote = service.find_by( :doc_number, doc_number).first
-      log "Found estimate with ID #{remote.id} for doc_number #{doc_number}" if remote
-      persist(remote)
-    end
-  end
-
-  # Sync a single estimate by its QBO ID, used for webhook updates
-  def sync_by_id(id)
-    log "Syncing estimate by ID: #{id}"
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Estimate.new(company_id: @qbo.realm_id, access_token: access_token)
-      remote = service.fetch_by_id(id)
-      persist(remote)
-    end
-  end
-
+class EstimateSyncService < SyncServiceBase
+  
   private
 
-  # Fetch a page of estimates, either all or only those updated since the last sync
-  def fetch_page(service, page, full_sync)
-    log "Fetching page #{page} of estimates (full_sync: #{full_sync})"
-    start_position = (page - 1) * PAGE_SIZE + 1
-
-    if full_sync
-      service.query("SELECT * FROM Estimate STARTPOSITION #{start_position} MAXRESULTS #{PAGE_SIZE}")
-    else
-      last_update = Estimate.maximum(:updated_at) || 1.year.ago
-      service.query(<<~SQL.squish)
-        SELECT * FROM Estimate
-        WHERE MetaData.LastUpdatedTime > '#{last_update.utc.iso8601}'
-        STARTPOSITION #{start_position}
-        MAXRESULTS #{PAGE_SIZE}
-      SQL
-    end
+  # Specify the local model this service syncs
+  def self.model_class
+    Estimate
   end
 
-  # Create or update a local Estimate record based on the QBO remote data
-  def persist(remote)
-    log "Persisting estimate #{remote.id}"
-    local = Estimate.find_or_initialize_by(id: remote.id)
-
+  # Map relevant attributes from the QBO Estimate to the local Estimate model
+  def process_attributes(local, remote)
     local.doc_number = remote.doc_number
     local.txn_date = remote.txn_date
     local.customer = Customer.find_by(id: remote.customer_ref&.value)
-    
-    if local.changed?
-      local.save
-      log "Updated estimate #{remote.id}"
-    end
-  rescue => e
-    log "Failed to sync estimate #{remote.id}: #{e.message}"
   end
 
-  def log(msg)
-    Rails.logger.info "[EstimateSyncService] #{msg}"
-  end
 end

app/services/invoice_pdf_service.rb

@@ -0,0 +1,16 @@
+#The MIT License (MIT)
+#
+#Copyright (c) 2016 - 2026 rick barrette
+#
+#Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+#
+#The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+#
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+class InvoicePdfService < PdfServiceBase
+
+  def self.model_class
+    Invoice
+  end
+
+end

app/services/invoice_sync_service.rb

@@ -8,88 +8,28 @@
 #
 #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-class InvoiceSyncService
-  PAGE_SIZE = 1000
-
-  def initialize(qbo:)
-    @qbo = qbo
-  end
-
-  # Sync all invoices, or only those updated since the last sync
-  def sync(full_sync: false)
-    log "Starting #{full_sync ? 'full' : 'incremental'} invoice sync"
-
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Invoice.new(company_id: @qbo.realm_id, access_token: access_token)
-
-      page = 1
-      loop do
-        collection = fetch_page(service, page, full_sync)
-        entries = Array(collection&.entries)
-        break if entries.empty?
-
-        entries.each { |remote| persist(remote) }
-
-        break if entries.size < PAGE_SIZE
-        page += 1
-      end
-    end
-
-    log "Invoice sync complete"
-  end
-
-  # Sync a single invoice by its QBO ID, used for webhook updates
-  def sync_by_id(id)
-    @qbo.perform_authenticated_request do |access_token|
-      service = Quickbooks::Service::Invoice.new(company_id: @qbo.realm_id, access_token: access_token)
-      remote = service.fetch_by_id(id)
-      persist(remote)
-    end
-  end
-
+class InvoiceSyncService < SyncServiceBase
+  
   private
 
-  # Fetch a page of invoices, either all or only those updated since the last sync
-  def fetch_page(service, page, full_sync)
-    start_position = (page - 1) * PAGE_SIZE + 1
-
-    if full_sync
-      service.query("SELECT * FROM Invoice STARTPOSITION #{start_position} MAXRESULTS #{PAGE_SIZE}")
-    else
-      last_update = Invoice.maximum(:qbo_updated_at) || 1.year.ago
-      service.query(<<~SQL.squish)
-        SELECT * FROM Invoice
-        WHERE MetaData.LastUpdatedTime > '#{last_update.utc.iso8601}'
-        STARTPOSITION #{start_position}
-        MAXRESULTS #{PAGE_SIZE}
-      SQL
-    end
+  # Specify the local model this service syncs
+  def self.model_class
+    Invoice
   end
-
-  # Create or update a local Invoice record based on the QBO remote data
-  def persist(remote)
-    local = Invoice.find_or_initialize_by(id: remote.id)
-
+  
+  # Map relevant attributes from the QBO Invoice to the local Invoice model
+  def process_attributes(local, remote)
     local.doc_number      = remote.doc_number
     local.txn_date        = remote.txn_date
     local.due_date        = remote.due_date
     local.total_amount    = remote.total
     local.balance         = remote.balance
     local.qbo_updated_at  = remote.meta_data&.last_updated_time
-
     local.customer = Customer.find_by(id: remote.customer_ref&.value)
-
-    if local.changed?
-      local.save
-      log "Updated invoice #{remote.doc_number} (#{remote.id})"
-    end
-
-    InvoiceAttachmentService.new(local, remote).attach
-    rescue => e
-    log "Failed to sync invoice #{remote.doc_number} (#{remote.id}): #{e.message}"
   end
 
-  def log(msg)
-    Rails.logger.info "[InvoiceSyncService] #{msg}"
+  # Attach QBO Invoices to the local Issues
+  def attach_documents(local, remote)
+    InvoiceAttachmentService.new(local, remote).attach
   end
 end

app/services/pdf_service_base.rb

@@ -0,0 +1,66 @@
+#The MIT License (MIT)
+#
+#Copyright (c) 2016 - 2026 rick barrette
+#
+#Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+#
+#The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+#
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+class PdfServiceBase
+  
+  require 'combine_pdf'
+
+  # Subclasses should initialize with a QBO client instance
+  def initialize(qbo:)
+    @qbo = qbo
+    @entity = self.class.model_class
+  end
+
+  # Subclasses must implement this to specify which document model to download pdf (e.g. Estimate, Invoice)
+  def self.model_class
+    raise NotImplementedError
+  end
+
+  # Fetches the PDF for the given entity IDs. If multiple IDs are provided, their PDFs are combined into a single document.
+  def fetch_pdf(doc_ids:)
+    log "Fetching PDFs for #{@entity} IDs: #{doc_ids.join(', ')}"
+    @qbo.perform_authenticated_request do |access_token|
+      service_class = "Quickbooks::Service::#{@entity.name}".constantize
+      service = service_class.new(company_id: @qbo.realm_id, access_token: access_token)
+
+      return single_pdf(service, doc_ids.first) if doc_ids.size == 1
+
+      combined_pdf(service, doc_ids)
+    end
+  end
+
+  private
+
+  # Fetches a single PDF for the given invoice ID.
+  def single_pdf(service, id)
+    log "Fetching PDF for #{@entity} ID: #{id}"
+    entity = service.fetch_by_id(id)
+    [service.pdf(entity), entity.doc_number]
+  end
+
+  # Combines PDFs for multiple entity IDs into a single PDF document and returns it along with a reference string.
+  def combined_pdf(service, ids)
+    log "Combining PDFs for #{@entity} IDs: #{ids.join(', ')}"
+    pdf = CombinePDF.new
+    ref = []
+
+    ids.each do |id|
+      entity = service.fetch_by_id(id)
+      ref << entity.doc_number
+      pdf << CombinePDF.parse(service.pdf(entity))
+    end
+
+    [pdf.to_pdf, ref.join(" ")]
+  end
+
+  # Logs messages with a consistent prefix for easier debugging.
+  def log(msg)
+    Rails.logger.info "[#{@entity}PdfService] #{msg}"
+  end
+end

app/services/sync_service_base.rb

@@ -0,0 +1,126 @@
+#The MIT License (MIT)
+#
+#Copyright (c) 2016 - 2026 rick barrette
+#
+#Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+#
+#The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+#
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+class SyncServiceBase
+  PAGE_SIZE = 1000
+
+  # Subclasses should initialize with a QBO client instance
+  def initialize(qbo:)
+    @qbo = qbo
+    @entity = self.class.model_class
+  end
+
+  # Subclasses must implement this to specify which local model they sync (e.g. Customer, Invoice)
+  def self.model_class
+    raise NotImplementedError
+  end
+
+  # Sync all entities, or only those updated since the last sync
+  def sync(full_sync: false)
+    log "Starting #{full_sync ? 'full' : 'incremental'} #{@entity.name} sync"
+
+    @qbo.perform_authenticated_request do |access_token|
+      service_class = "Quickbooks::Service::#{@entity.name}".constantize
+      service = service_class.new(company_id: @qbo.realm_id, access_token: access_token)
+
+      page = 1
+      loop do
+        collection = fetch_page(service, page, full_sync)
+        entries = Array(collection&.entries)
+        break if entries.empty?
+
+        entries.each { |remote| persist(remote) }
+
+        break if entries.size < PAGE_SIZE
+        page += 1
+      end
+    end
+
+    log "#{@entity.name} sync complete"
+  end
+
+  # Sync a single entity by its QBO ID, used for webhook updates
+  def sync_by_id(id)
+    log "Syncing #{@entity.name} with ID #{id}"
+    @qbo.perform_authenticated_request do |access_token|
+      service_class = "Quickbooks::Service::#{@entity.name}".constantize
+      service = service_class.new(company_id: @qbo.realm_id, access_token: access_token)
+      remote = service.fetch_by_id(id)
+      persist(remote)
+    end
+  end
+
+  private
+
+  def attach_documents(local, remote)
+    # Override in subclasses if the entity has attachments (e.g. Invoice)
+  end
+
+  # Determine if a remote entity should be deleted locally (e.g. if it's marked inactive in QBO)
+  def destroy_remote?(remote)
+    false
+  end
+
+  # Log messages with the entity type for better traceability
+  def log(msg)
+    Rails.logger.info "[#{@entity.name}SyncService] #{msg}"
+  end
+
+  # Fetch a page of entities, either all or only those updated since the last sync
+  def fetch_page(service, page, full_sync)
+    log "Fetching page #{page} of #{@entity.name} from QBO (#{full_sync ? 'full' : 'incremental'} sync)"
+    start_position = (page - 1) * PAGE_SIZE + 1
+
+    if full_sync
+      service.query("SELECT * FROM #{@entity.name} STARTPOSITION #{start_position} MAXRESULTS #{PAGE_SIZE}")
+    else
+      last_update = @entity.maximum(:updated_at) || 1.year.ago
+      service.query(<<~SQL.squish)
+        SELECT * FROM #{@entity.name}
+        WHERE MetaData.LastUpdatedTime > '#{last_update.utc.iso8601}'
+        STARTPOSITION #{start_position}
+        MAXRESULTS #{PAGE_SIZE}
+      SQL
+    end
+  end
+
+  # Create or update a local entity record based on the QBO remote data
+  def persist(remote)
+    local = @entity.find_or_initialize_by(id: remote.id)
+
+    if destroy_remote?(remote)
+      if local.persisted?
+        local.destroy
+        log "Deleted #{@entity.name} #{remote.id}"
+      end
+      return
+    end
+
+    # Map remote attributes to local model fields, this should be implemented in subclasses
+    process_attributes(local, remote)
+
+    if local.changed?
+      local.save!
+      log "Updated #{@entity.name} #{remote.id}"
+    end
+
+    # Handle attaching documents if applicable to invoices
+    attach_documents(local, remote)
+
+  rescue => e
+      log "Failed to sync #{@entity.name} #{remote.id}: #{e.message}"
+  end
+
+  # This method should be implemented in subclasses to map remote attributes to local model
+  def process_attributes(local, remote)
+    raise NotImplementedError, "Subclasses must implement process_attributes"
+  end
+
+end

lib/redmine_qbo/patches/issue_patch.rb

@@ -39,11 +39,9 @@ module RedmineQbo
         # Enqueue a background job to bill the time spent on this issue to the associated customer in Quickbooks, if the issue is closed and has a customer assigned.
         def enqueue_billing
           log "Checking if issue needs to be billed for issue ##{id}"
-          #return unless saved_change_to_status_id?
           return unless closed?
           return unless customer.present?
           return unless assigned_to&.employee_id.present?
-          return unless Qbo.first
 
           log "Enqueuing billing for issue ##{id}"
           BillIssueTimeJob.perform_later(id)