class ReeMapper::Date

def cast(value, role: nil)
  if value.class == Date
    value
  elsif value.class == DateTime || value.class == Time
    value.to_date
  elsif value.is_a?(String)
    begin
      Date.parse(value)
    rescue ArgumentError => e
      raise ReeMapper::CoercionError, "is invalid date"
    end
  else
    raise ReeMapper::TypeError, "should be a date"
  end
end

def db_dump(value, role: nil)
  serialize(value, role: role)
end

def db_load(value, role: nil)
  cast(value, role: role)
end

def serialize(value, role: nil)
  if value.class == Date
    value
  else
    raise ReeMapper::TypeError, "should be a date"
  end
end