#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.

require_dependency 'issue'

module RedmineQbo
  module Patches

    # Patches Redmine's Issues dynamically.
    # Adds relationships for customers, estimates, invoices, customer_tokens
    # Adds before and after save hooks
    module IssuePatch

      def self.included(base) # :nodoc:
        base.extend(ClassMethods)

        base.send(:include, InstanceMethods)

        # Same as typing in the class 
        base.class_eval do
          belongs_to :customer, primary_key: :id
          belongs_to :customer_token, primary_key: :id
          belongs_to :estimate, primary_key: :id
          has_and_belongs_to_many :invoices
          before_save :titlize_subject
          after_save :bill_time
        end
        
      end
        
      module ClassMethods
        
      end
      
      module InstanceMethods
        
        # Create billable time entries
        def bill_time
          logger.debug "QBO: Billing time for issue ##{id} - #{subject}"
          return unless  status.is_closed?
          return if assigned_to.nil?
          return unless Qbo.first 
          return unless customer 

          Thread.new do
            spent_time = time_entries.where(billed: [false, nil])
            spent_hours ||= spent_time.sum(:hours) || 0
            
            if spent_hours > 0 then
              
              # Prepare to create a new Time Activity
              qbo = Qbo.first
              qbo.perform_authenticated_request do |access_token|
                time_service = Quickbooks::Service::TimeActivity.new(company_id: qbo.realm_id, access_token: access_token)
                item_service = Quickbooks::Service::Item.new(company_id: qbo.realm_id, access_token: access_token)
                time_entry = Quickbooks::Model::TimeActivity.new
        
                # Lets total up each activity before billing.
                # This will simpify the invoicing with a single billable time entry per time activity
                h = Hash.new(0)
                spent_time.each do |entry|
                  h[entry.activity.name] += entry.hours
                  # update time entries billed status
                  entry.billed = true
                  entry.save
                end
                
                # Now letes upload our totals for each activity as their own billable time entry
                h.each do |key, val|
                  
                  # Convert float spent time to hours and minutes
                  hours = val.to_i
                  minutesDecimal = (( val - hours) * 60)
                  minutes = minutesDecimal.to_i

                  # Lets match the activity to an qbo item
                  item = item_service.query("SELECT * FROM Item WHERE Name = '#{key}' ").first
                  next if item.nil?
                  
                  # Create the new billable time entry and upload it
                  time_entry.description = "#{tracker} ##{id}: #{subject} #{"(Partial @ #{done_ratio}%)" if not closed?}"
                  time_entry.employee_id = assigned_to.employee_id 
                  time_entry.customer_id = customer_id
                  time_entry.billable_status = "Billable"
                  time_entry.hours = hours
                  time_entry.minutes = minutes
                  time_entry.name_of = "Employee"
                  time_entry.txn_date = Date.today
                  time_entry.hourly_rate = item.unit_price
                  time_entry.item_id = item.id 
                  time_entry.start_time = start_date
                  time_entry.end_time = Time.now
                  time_service.create(time_entry)
                end
              end
            end
          end
        end
      end
      
      # Create a shareable link for a customer
      def share_token
        CustomerToken.get_token self
      end
      
      # Titleize the subject before save
      def titlize_subject
        self.subject = self.subject.titleize
      end
      
    end  

    # Add module to Issue
    Issue.send(:include, IssuePatch)

  end
end