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# frozen_string_literal: true
class BroadcastMessage < ActiveRecord::Base
include CacheMarkdownField
include Sortable
cache_markdown_field :message, pipeline: :broadcast_message
validates :message, presence: true
validates :starts_at, presence: true
validates :ends_at, presence: true
validates :color, allow_blank: true, color: true
validates :font, allow_blank: true, color: true
default_value_for :color, '#E75E40'
default_value_for :font, '#FFFFFF'
CACHE_KEY = 'broadcast_message_current'.freeze
after_commit :flush_redis_cache
def self.current
messages = Rails.cache.fetch(CACHE_KEY, expires_in: cache_expires_in) { current_and_future_messages.to_a }
return messages if messages.empty?
now_or_future = messages.select(&:now_or_future?)
# If there are cached entries but none are to be displayed we'll purge the
# cache so we don't keep running this code all the time.
Rails.cache.delete(CACHE_KEY) if now_or_future.empty?
now_or_future.select(&:now?)
end
def self.current_and_future_messages
where('ends_at > :now', now: Time.zone.now).order_id_asc
end
def self.cache_expires_in
nil
end
def active?
started? && !ended?
end
def started?
Time.zone.now >= starts_at
end
def ended?
ends_at < Time.zone.now
end
def now?
(starts_at..ends_at).cover?(Time.zone.now)
end
def future?
starts_at > Time.zone.now
end
def now_or_future?
now? || future?
end
def flush_redis_cache
Rails.cache.delete(CACHE_KEY)
end
end
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