package de.mrbesen.telegram.objects;

import org.json.JSONObject;

public class JSONBased {

	protected JSONObject base_json = null;
	protected Member[] allowedmembers = {};
	
	public JSONBased() {}

	public JSONBased(JSONObject json) {
		base_json = json;
	}
	
	public boolean has(Member mem) {
		if(base_json == null)
			return false;
		if(!isAllowed(mem))
			throw new UnallowedMemberException(mem, this);
		return base_json.has(mem.name());
	}

	public <T> T get(Member mem) {
		if(base_json == null)
			return null;
		return (T) base_json.get(mem.name());
	}
	
	public boolean isAllowed(Member mem) {
		for(Member allowedmem : allowedmembers) {
			if(allowedmem == mem) {
				return true;
			}
		}
		return false;
	}

	public Member[] getAllowed() {
		return allowedmembers;
	}
	
	public enum Member {
	
		// ===== MESSAGE ====
		chat,//Chat
		forward_from_message_id,//int
		forward_signature,//String
		forward_date,//long
		reply_to_message,//Message
		edit_date,//long
		media_group_id,//String
		author_signature, //String
		audio, //Audio
		document, //Document
		game, //Game
		photo, //Array of PhotoSize
		sticker, //Sticker
		video, //Video
		voice, //voice
		video_note, //videoNote
		caption, // String
		contact, //Contact
		location, //Location
		venue, //Venue
		new_chat_members, // Array of TUser
		left_chat_members, // Array of TUser
		new_chat_title, //String
		new_chat_photo, //Array of Photosize
		delete_chat_photo, // true
		group_chat_created, // true
		supergroup_chat_created, // true
		channel_chat_created, //true
		migrate_to_chat_id, // int
		migrate_from_chat_id, // int
		pinned_message, //TMessage
		invoice, //Invoice
		successful_payment, //SuccessfulPayment
		connected_website, // String
		//==== END MESSAGE ====
		
		//==== AUDIO ======
		performer, //String
		title,//String
		mime_type, // String     - also used for Documents, PhotoSize & video
		file_size, // int  		 - also used for Documents, File  & video
		//===== END AUDIO ====
		
		//=====Document=====
		thumb, //PhotoSize		 - also used in Video
		file_name,//String
		//=====END Document=====
		
		//===== VENUE ====
		foursquare_id, //String
		//===== END VENUE ====
	
		//===== FILE =====
		file_path, // String
		//===== END FILE =====
	}
	
	protected class UnallowedMemberException extends RuntimeException {
		private static final long serialVersionUID = -253424139568749269L;

		public UnallowedMemberException(Member mem, JSONBased b) {
			super(b.getClass().getSimpleName() + " does not allow member " + mem.name());
		}
	}
}