# Spreads demo record timestamps over the last two weeks (working hours), so the activity page,
# "updated" columns and history show different days and times. Deterministic (based on ids),
# safe to run again. Called by seed.rb; can also run alone:
#   docker compose exec redmine bin/rails runner /seed/spread_activity.rb

now = Time.current
today = Date.current
DAYS = 14

# Day `days_ago` at a working-hour time derived from `n`
at = lambda do |days_ago, n|
  (today - days_ago).in_time_zone.change(hour: 8 + (n * 7) % 10, min: (n * 13) % 60)
end
not_future = ->(t, n) { t < now ? t : now - (n % 90 + 5).minutes }

ActiveRecord::Base.transaction do
  Issue.order(:id).each_with_index do |issue, i|
    created = at.(DAYS - 1 - (i % DAYS), i)
    last = created
    issue.journals.order(:id).each do |journal|
      t = not_future.(created + (1 + journal.id % 3).days + (journal.id * 17 % 300).minutes, journal.id)
      journal.update_columns(created_on: t, updated_on: t)
      last = [last, t].max
    end
    closed = issue.closed? ? [last, created + 1.day].max : nil
    issue.update_columns(created_on: created, updated_on: last, closed_on: closed && not_future.(closed, issue.id))
  end

  TimeEntry.find_each do |entry|
    t = not_future.(entry.spent_on.in_time_zone.change(hour: 17, min: entry.id * 7 % 60), entry.id)
    entry.update_columns(created_on: t, updated_on: t)
  end

  Attachment.find_each { |a| a.update_columns(created_on: not_future.(a.container.try(:created_on).to_time + 2.hours, a.id)) if a.container }

  WikiContentVersion.order(:id).each_with_index do |version, i|
    t = at.(9 - i * 2, version.id)
    version.update_columns(updated_on: t)
    version.page.content.update_columns(updated_on: t) if version.version == version.page.content.version
  end
  WikiPage.find_each { |page| page.update_columns(created_on: page.content.versions.minimum(:updated_on) || page.created_on) }

  News.find_each do |news|
    news.update_columns(created_on: at.(6, news.id))
    news.comments.each_with_index { |c, i| c.update_columns(created_on: at.(5 - i, c.id), updated_on: at.(5 - i, c.id)) }
  end

  Message.where(parent_id: nil).find_each do |topic|
    topic.update_columns(created_on: at.(4, topic.id), updated_on: at.(4, topic.id))
    topic.children.each_with_index do |reply, i|
      t = not_future.(at.(3 - i, reply.id), reply.id)
      reply.update_columns(created_on: t, updated_on: t)
      topic.update_columns(updated_on: t)
    end
  end

  Document.find_each { |d| d.update_columns(created_on: at.(8, d.id)) }
end

puts "Spread activity over the last #{DAYS} days."