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path: root/app/helpers/cycle_analytics_helper.rb
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module CycleAnalyticsHelper
  include ActionView::Helpers::DateHelper

  def cycle_analytics_json(cycle_analytics)
    cycle_analytics_view_data = [[:issue, "Issue", "Time before an issue gets scheduled"],
                                 [:plan, "Plan", "Time before an issue starts implementation"],
                                 [:code, "Code", "Time until first merge request"],
                                 [:test, "Test", "Total test time for all commits/merges"],
                                 [:review, "Review", "Time between MR creation and merge/close"],
                                 [:staging, "Staging", "From MR merge until deploy to production"],
                                 [:production, "Production", "From issue creation until deploy to production"]]

    stats = cycle_analytics_view_data.reduce([]) do |stats, (stage_method, stage_text, stage_description)|
      value = cycle_analytics.send(stage_method).presence

      stats << {
        title: stage_text,
        description: stage_description,
        value: value ? distance_of_time_in_words(value) : nil
      }
      stats
    end

    stats = nil if stats.all? { |stat| stat[:value].nil?  }

    summary = [
      { title: "New Issues", value: cycle_analytics.summary.new_issues },
      { title: "Commits", value: cycle_analytics.summary.commits },
      { title: "Deploys", value: cycle_analytics.summary.deploys }
    ]

    {
      summary: summary,
      stats: stats
    }
  end
end