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# frozen_string_literal: true

# Redmine - project management software
# Copyright (C) 2006-  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module ReportsHelper

  def aggregate(data, criteria)
    a = 0
    data.each do |row|
      match = 1
      criteria.each do |k, v|
        unless (row[k].to_s == v.to_s) ||
                 (k == 'closed' &&
                   (v == 0 ? ['f', false] : ['t', true]).include?(row[k]))
          match = 0
        end
      end unless criteria.nil?
      a = a + row["total"].to_i if match == 1
    end unless data.nil?
    a
  end

  def aggregate_link(data, criteria, *args)
    a = aggregate data, criteria
    a > 0 ? link_to(h(a), *args) : '-'
  end

  def aggregate_path(project, field, row, options={})
    parameters = {:set_filter => 1, :subproject_id => '!*', field => (row.id || '!*')}.merge(options)
    project_issues_path(row.is_a?(Project) ? row : project, parameters)
  end

  def issue_report_details_to_csv(field_name, statuses, rows, data)
    Redmine::Export::CSV.generate(:encoding => params[:encoding]) do |csv|
      # csv headers
      headers = [''] + statuses.map(&:name) + [l(:label_open_issues_plural), l(:label_closed_issues_plural), l(:label_total)]
      csv << headers

      # csv lines
      rows.each do |row|
        csv <<
          [row.name] +
          statuses.map{|s| aggregate(data, { field_name => row.id, 'status_id' => s.id })} +
          [aggregate(data, { field_name => row.id, 'closed' => 0 })] +
          [aggregate(data, { field_name => row.id, 'closed' => 1 })] +
          [aggregate(data, { field_name => row.id })]
      end
    end
  end
end