class Spoom::Coverage::D3::Timeline::Sigils

def initialize(id, snapshots)
  keys = Snapshot::STRICTNESSES
  data = snapshots.map do |snapshot|
    {
      timestamp: snapshot.commit_timestamp,
      commit: snapshot.commit_sha,
      total: snapshot.files - snapshot.rbi_files,
      values: snapshot.sigils_excluding_rbis,
    }
  end
  super(id, data, keys)
end

def tooltip
  <<~JS
    function tooltip_#{id}(d) {
      tooltipTimeline(d, "files excluding RBIs");
    }
  JS
end