module Network.API.Telegram.Bot.Object.Update.Message.Content.File.Document (Document (..)) where

import "aeson" Data.Aeson (FromJSON (parseJSON), withObject, (.:), (.:?))
import "base" Control.Applicative ((<*>))
import "base" Data.Maybe (Maybe)
import "base" Data.Function (($))
import "base" Data.Functor ((<$>))

import Network.API.Telegram.Bot.Field (Filesize, MIME, Title, URI)
import Network.API.Telegram.Bot.Property (Identifiable (Identificator, ident))

data Document = Document URI (Maybe Title) (Maybe MIME) (Maybe Filesize)

instance Identifiable Document where
	type Identificator Document = URI
	ident (Document uri _ _ _) = uri

instance FromJSON Document where
	parseJSON = withObject "Document" $ \v -> Document
		<$> v .: "file_id" <*>  v .:? "file_name"
		<*> v .:? "mime_type" <*> v .:? "file_size"