twist.cr

class Anime
  include JSON::Serializable
  property id : Int32
  property title : String
  property alt_title : String?
  property season : Int32
  @[JSON::Field(converter: BoolConverter)]
  property ongoing : Bool
  property hb_id : Int32?
  @[JSON::Field(converter: TimeConverter)]
  property created_at : Time
  @[JSON::Field(converter: TimeConverter)]
  property updated_at : Time
  @[JSON::Field(converter: BoolConverter)]
  property hidden : Bool
  property mal_id : Int32?
  # property slug : Slug
end

module BoolConverter
  def self.from_json(parser : JSON::PullParser)
    parser.read_int.zero?
  end

  def self.to_json(value : Bool, builder : JSON::Builder)
    value ? 1 : 0
  end
end

module TimeConverter
  FORMAT = Time::Format.new("%Y-%m-%d %H:%M:%S", Time::Location::UTC)

  def self.from_json(parser : JSON::PullParser)
    FORMAT.parse(parser.read_string)
  end

  def self.to_json(value : Time, builder : JSON::Builder)
    FORMAT.format(value)
  end
end