#The MIT License (MIT)
#
#Copyright (c) 2022 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 'redmine/export/pdf'
require_dependency 'redmine/export/pdf/issues_pdf_helper'

module IssuesPdfHelperPatch

  def self.included(base)
    base.send(:include, InstanceMethods)
    base.class_eval do
      unloadable # Send unloadable so it will not be unloaded in development
      alias_method :issue_to_pdf, :issue_to_pdf_with_patch
      alias_method :issue_to_pdf_with_patch, :issue_to_pdf
      
    end
  end

  module InstanceMethods

    def issue_to_pdf_with_patch(issue, assoc={})
      pdf = ::Redmine::Export::PDF::ITCPDF.new(current_language)
      pdf.set_title("#{issue.project} - #{issue.tracker} ##{issue.id}")
      pdf.alias_nb_pages
      pdf.footer_date = format_date(Date.today)
      pdf.add_page
      pdf.SetFontStyle('B',11)
      buf = "#{issue.project} - #{issue.tracker} ##{issue.id}"
      pdf.RDMMultiCell(190, 5, buf)
      pdf.SetFontStyle('',8)
      base_x = pdf.get_x
      i = 1
      issue.ancestors.visible.each do |ancestor|
        pdf.set_x(base_x + i)
        buf = "#{ancestor.tracker} # #{ancestor.id} (#{ancestor.status.to_s}): #{ancestor.subject}"
        pdf.RDMMultiCell(190 - i, 5, buf)
        i += 1 if i < 35
      end
      pdf.SetFontStyle('B',11)
      pdf.RDMMultiCell(190 - i, 5, issue.subject.to_s)
      pdf.SetFontStyle('',8)
      pdf.RDMMultiCell(190, 5, "#{format_time(issue.created_on)} - #{issue.author}")
      pdf.ln

      customer = issue.customer.name if issue.customer
      left = []
      left << [l(:field_status), issue.status]
      left << [l(:field_priority), issue.priority]
      left << [l(:field_customer), customer]
      left << [l(:field_assigned_to), issue.assigned_to] unless issue.disabled_core_fields.include?('assigned_to_id')
      #left << [l(:field_category), issue.category] unless issue.disabled_core_fields.include?('category_id')
      #left << [l(:field_fixed_version), issue.fixed_version] unless issue.disabled_core_fields.include?('fixed_version_id')
      
      v = Vehicle.find_by_id(issue.vehicles_id)
      vehicle = v ? v.to_s : nil
      vin = v ? v.vin : nil
      notes = v ? v.notes : nil
      left << [l(:field_vehicles), vehicle]
      left << [l(:field_vin), vin ? vin.gsub(/(.{9})/, '\1 ') : nil]
      #left << [l(:field_notes), notes]
      
      right = []
      right << [l(:field_start_date), format_date(issue.start_date)] unless issue.disabled_core_fields.include?('start_date')
      right << [l(:field_due_date), format_date(issue.due_date)] unless issue.disabled_core_fields.include?('due_date')
      right << [l(:field_done_ratio), "#{issue.done_ratio}%"] unless issue.disabled_core_fields.include?('done_ratio')
      right << [l(:field_estimated_hours), l_hours(issue.estimated_hours)] unless issue.disabled_core_fields.include?('estimated_hours')
      right << [l(:label_spent_time), l_hours(issue.total_spent_hours)] if User.current.allowed_to?(:view_time_entries, issue.project)
      right << [l(:field_notes), notes]

      rows = left.size > right.size ? left.size : right.size
      while left.size < rows
        left << nil
      end
      while right.size < rows
        right << nil
      end

      half = (issue.visible_custom_field_values.size / 2.0).ceil
      issue.visible_custom_field_values.each_with_index do |custom_value, i|
        (i < half ? left : right) << [custom_value.custom_field.name, show_value(custom_value, false)]
      end

      if pdf.get_rtl
        border_first_top = 'RT'
        border_last_top = 'LT'
        border_first = 'R'
        border_last = 'L'
      else
        border_first_top = 'LT'
        border_last_top = 'RT'
        border_first = 'L'
        border_last = 'R'
      end

      rows = left.size > right.size ? left.size : right.size
      rows.times do |i|
        heights = []
        pdf.SetFontStyle('B',9)
        item = left[i]
        heights << pdf.get_string_height(35, item ? "#{item.first}:" : "")
        item = right[i]
        heights << pdf.get_string_height(35, item ? "#{item.first}:" : "")
        pdf.SetFontStyle('',9)
        item = left[i]
        heights << pdf.get_string_height(60, item ? item.last.to_s : "")
        item = right[i]
        heights << pdf.get_string_height(60, item ? item.last.to_s : "")
        height = heights.max

        item = left[i]
        pdf.SetFontStyle('B',9)
        pdf.RDMMultiCell(35, height, item ? "#{item.first}:" : "", (i == 0 ? border_first_top : border_first), '', 0, 0)
        pdf.SetFontStyle('',9)
        pdf.RDMMultiCell(60, height, item ? item.last.to_s : "", (i == 0 ? border_last_top : border_last), '', 0, 0)

        item = right[i]
        pdf.SetFontStyle('B',9)
        pdf.RDMMultiCell(35, height, item ? "#{item.first}:" : "", (i == 0 ? border_first_top : border_first), '', 0, 0)
        pdf.SetFontStyle('',9)
        pdf.RDMMultiCell(60, height, item ? item.last.to_s : "", (i == 0 ? border_last_top : border_last), '', 0, 2)

        pdf.set_x(base_x)
      end

      pdf.SetFontStyle('B',9)
      pdf.RDMCell(35+155, 5, l(:field_description), "LRT", 1)
      pdf.SetFontStyle('',9)

      # Set resize image scale
      pdf.set_image_scale(1.6)
      text = textilizable(issue, :description,
                          :only_path => false,
                          :edit_section_links => false,
                          :headings => false,
                          :inline_attachments => false
      )
      pdf.RDMwriteFormattedCell(35+155, 5, '', '', text, issue.attachments, "LRB")

      unless issue.leaf?
        truncate_length = (!is_cjk? ? 90 : 65)
        pdf.SetFontStyle('B',9)
        pdf.RDMCell(35+155,5, l(:label_subtask_plural) + ":", "LTR")
        pdf.ln
        issue_list(issue.descendants.visible.sort_by(&:lft)) do |child, level|
          buf = "#{child.tracker} # #{child.id}: #{child.subject}".
              truncate(truncate_length)
          level = 10 if level >= 10
          pdf.SetFontStyle('',8)
          pdf.RDMCell(35+135,5, (level >=1 ? "  " * level : "") + buf, border_first)
          pdf.SetFontStyle('B',8)
          pdf.RDMCell(20,5, child.status.to_s, border_last)
          pdf.ln
        end
      end

      relations = issue.relations.select { |r| r.other_issue(issue).visible? }
      unless relations.empty?
        truncate_length = (!is_cjk? ? 80 : 60)
        pdf.SetFontStyle('B',9)
        pdf.RDMCell(35+155,5, l(:label_related_issues) + ":", "LTR")
        pdf.ln
        relations.each do |relation|
          buf = relation.to_s(issue) {|other|
            text = ""
            if Setting.cross_project_issue_relations?
              text += "#{relation.other_issue(issue).project} - "
            end
            text += "#{other.tracker} ##{other.id}: #{other.subject}"
            text
          }
          buf = buf.truncate(truncate_length)
          pdf.SetFontStyle('', 8)
          pdf.RDMCell(35+155-60, 5, buf, border_first)
          pdf.SetFontStyle('B',8)
          pdf.RDMCell(20,5, relation.other_issue(issue).status.to_s, "")
          pdf.RDMCell(20,5, format_date(relation.other_issue(issue).start_date), "")
          pdf.RDMCell(20,5, format_date(relation.other_issue(issue).due_date), border_last)
          pdf.ln
        end
      end
      pdf.RDMCell(190,5, "", "T")
      pdf.ln

      if issue.changesets.any? &&
          User.current.allowed_to?(:view_changesets, issue.project)
        pdf.SetFontStyle('B',9)
        pdf.RDMCell(190,5, l(:label_associated_revisions), "B")
        pdf.ln
        for changeset in issue.changesets
          pdf.SetFontStyle('B',8)
          csstr = "#{l(:label_revision)} #{changeset.format_identifier} - "
          csstr += format_time(changeset.committed_on) + " - " + changeset.author.to_s
          pdf.RDMCell(190, 5, csstr)
          pdf.ln
          unless changeset.comments.blank?
            pdf.SetFontStyle('',8)
            pdf.RDMwriteHTMLCell(190,5,'','',
                                 changeset.comments.to_s, issue.attachments, "")
          end
          pdf.ln
        end
      end

      if assoc[:journals].present?
        pdf.SetFontStyle('B',9)
        pdf.RDMCell(190,5, l(:label_history), "B")
        pdf.ln
        assoc[:journals].each do |journal|
          pdf.SetFontStyle('B',8)
          title = "##{journal.indice} - #{format_time(journal.created_on)} - #{journal.user}"
          title << " (#{l(:field_private_notes)})" if journal.private_notes?
          pdf.RDMCell(190,5, title)
          pdf.ln
          pdf.SetFontStyle('I',8)
          details_to_strings(journal.visible_details, true).each do |string|
            pdf.RDMMultiCell(190,5, "- " + string)
          end
          if journal.notes?
            pdf.ln unless journal.details.empty?
            pdf.SetFontStyle('',8)
            text = textilizable(journal, :notes,
                                :only_path => false,
                                :edit_section_links => false,
                                :headings => false,
                                :inline_attachments => false
            )
            pdf.RDMwriteFormattedCell(190,5,'','', text, issue.attachments, "")
          end
          pdf.ln
        end
      end

      if issue.attachments.any?
        pdf.SetFontStyle('B',9)
        pdf.RDMCell(190,5, l(:label_attachment_plural), "B")
        pdf.ln
        for attachment in issue.attachments
          pdf.SetFontStyle('',8)
          pdf.RDMCell(80,5, attachment.filename)
          pdf.RDMCell(20,5, number_to_human_size(attachment.filesize),0,0,"R")
          pdf.RDMCell(25,5, format_date(attachment.created_on),0,0,"R")
          pdf.RDMCell(65,5, attachment.author.name,0,0,"R")
          pdf.ln
        end
      end
      pdf.output
    end

  end
end

Redmine::Export::PDF::IssuesPdfHelper.send(:include, IssuesPdfHelperPatch)
