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path: root/app/helpers/version_reports_helper.rb
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module VersionReportsHelper

  def display_issue(issue, *options)
    text = issue.subject
    text = text.sub(/\!\!\w*/,'')
    if options.include? :tracker
      text = "#{issue.tracker} ##{issue.id} " + text
    end
    link_to text, issue_path(issue)
  end

  def issue_time(issue)
    if @show_time && issue.total_spent_hours > 0
      l_hours(issue.total_spent_hours)
    end
  end

  def issue_money(issue, *options)
    if @show_money
      amount = custom_price(issue) || hours_to_money(issue.total_spent_hours)
      amount = amount.round
      if options.include?(:format)
        number_to_currency amount, :precision => 0
      else
        amount
      end
    end
  end

  def hourly_rate
    @rate ||= to_float( custom_field_value(@version, :rate) || DEFAULT_REPORT_RATE )
  end

  def hours_to_money(hours)
    (hours||0) * hourly_rate
  end

  #
  # name is a key for REPORT_CUSTOM_FIELDS hash
  #
  def custom_field(object, name)
    object.custom_field_values.detect {|value|
      value.custom_field.name == REPORT_CUSTOM_FIELDS[name]
    }
  end

  def custom_field_value(object, name)
    v = custom_field(object, name)
    if v
      v.value
    end
  end

  def hour_budget_error(issue)
    return unless @show_time || @show_money
    time_budget = (custom_field_value(issue, :hours) || 0).to_i
    money_budget = (custom_field_value(issue, :money) || 0).to_i
    if time_budget != 0
      if issue.total_spent_hours.round != time_budget
        if issue.total_spent_hours < time_budget
          content_tag :div, :class => 'flash error' do
            "%s under budget!" % l_hours(time_budget - issue.total_spent_hours)
          end
        elsif issue.total_spent_hours > time_budget
          content_tag :div, :class => 'flash warning' do
            "%s over budget!" % l_hours(issue.total_spent_hours - time_budget)
          end
        end
      end
    elsif money_budget != 0
      actual_money = issue_money(issue).round
      if actual_money != money_budget
        if actual_money < money_budget
          content_tag :div, :class => 'flash error' do
            "%s under budget!" % l_hours((money_budget - actual_money) / hourly_rate)
          end
        elsif actual_money > money_budget
          content_tag :div, :class => 'flash warning' do
            "%s over budget!" % l_hours((actual_money - money_budget) / hourly_rate)
          end
        end
      end
    end
  end

  def custom_price(issue)
    value = custom_field_value(issue, :price)
    if value.present? && value != "0"
      to_float(value)
    end
  end

  def report_header(version)
    url = custom_field_value(version, :header)
    if !url.present?
      url = DEFAULT_REPORT_HEADER
    end
    %(<img src="#{url}" style="max-width:100%"/>).html_safe
  end

  # show_value requires CustomFieldsHelper
  def report_summary(version)
    show_value(custom_field(version, :summary))
  end

  def total_time(version, issues)
    l_hours(issues.sum(&:total_spent_hours)) if @show_time
  end

  def total_money(version, issues)
    if @show_money
      total = issues.sum {|issue| issue_money(issue)}
      number_to_currency total, :precision => 0
    end
  end

  # drops currency in a string.
  def to_float(string)
    string.gsub(/[^0-9\.]/, '').to_f
  end

end