module BlameHelper
def age_map_duration(blame_groups, project)
now = Time.zone.now
start_date = blame_groups.map { |blame_group| blame_group[:commit].committed_date }
.append(project.created_at).min
{
now: now,
started_days_ago: (now - start_date).to_i / 1.day
}
end
def age_map_class(commit_date, duration)
if duration[:started_days_ago] == 0
"blame-commit-age-0"
else
commit_date_days_ago = (duration[:now] - commit_date).to_i / 1.day
# Numbers 0 to 10 come from this calculation, but only commits on the oldest
# day get number 10 (all other numbers can be multiple days), so the range
# is normalized to 0-9
age_group = [(10 * commit_date_days_ago) / duration[:started_days_ago], 9].min
"blame-commit-age-#{age_group}"
end
end
end