import { AExchangeable } from "../AExchangable.js";
import { Client } from "../Client.js";
import { Profile } from "../Profile.js";

class Tourmanent extends AExchangeable
{
	/**
	 * 
	 * @param {Client} client 
	 * @param {Number} id the id of the tournament 
	 */
	constructor(client, id)
	{
		super();

		/**
		 * @type {Number}
		 */
		this.id = id;
		
		/**
		 * @type {Client}
		 */
		this.client = client;

		/**
		 * @type {Number}
		 */
		this.nb_participants;

		/**
		 * @type {[Profile]} proutman à encore frappé
		 */
		this.participantList = []
		
		/**
		 * @type {Boolean}
		 */
		this.started;
		
		/**
		 * @type {Number}
		 */
		this.finished;
		
		/**
		 * @type {"finished" | "started" | "waiting"} must be "finished", or "started", or "waiting". Any other return all elements
		 */
		this.state;

		/**
		 * @type {Boolean} the client is a participant of the tournament
		 */
		this.is_participating;
	}

	/**
	 * @param {Boolean} newParticipation 
	 */
	async setParticipation(newParticipation)
	{
		if (this.isParticipating == newParticipation)
			return;

		this.isParticipating = newParticipation;

		this._socket.send(JSON.stringify({"detail": "update_participating",
										  "is_participating": newParticipation})
						  );
		
	}
	/**
	 * 
	 * @returns {Promise<?>}
	 */
	async init()
	{
		let response = await this.client._get(`/api/tournaments/${this.id}`);

		if (response.status !== 200)
			return response.status;

		let response_data = await response.json();

		this.import(response_data);
	}

	leave(event)
	{
		if (this.connected == false)
			return;
		this.connected = false;
		this._socket.close();
		if (this.disconnectHandler != null)
			this.disconnectHandler(event);
	}

	/**
	 * @param {Object} data 
	 */
	async _receiveAddParticipant(data)
	{
		const participant = new Profile(this.client, undefined, data.participant.user_id);
		participant.import(data.participant)

		this.participantList.push(participant);

		await this._addParticipantHandler(this.participantList.length)
	}

	/**
	 * @param {Object} data 
	 */
	async _receiveDelParticipant(data)
	{
		const index = this.participantList.indexOf((profile) => profile.id === data.profile.user_id)

		this.participantList.splice(index, 1);

		await this._delParticipantHandler(this.participantList.length);
	}

	async _receiveError(data)
	{
		await this.errorHandler(data);
	}

	async _receiveGoTo(data)
	{
		await this._goToHandler(data)
	}

	/**
	 * 
	 * @param {MessageEvent} event 
	 */
	async onReceive(event)
	{
		const data = JSON.parse(event.data);

		switch (data.detail) {
			case "error":
				await this._receiveError(data)
				break;
			
			case "add_participant":
				await this._receiveAddParticipant(data);
				break;

			case "del_participant":
				await this._receiveDelParticipant(data);
				break;
			
			case "go_to":
				await this._receiveGoTo(data);
				break

			default:
				break;
		}
	}

	/**
	 * Join the tournament Websocket
	 * @param {CallableFunction} errorHandler
	 * @param {CallableFunction} addParticipantHandler called when a participants join the tournament
	 * @param {CallableFunction} delParticipantHandler called when a participants leave the tournament
	 * @param {CallableFunction} disconnectHandler 
	 * @param {CallableFunction} goToHandler called when the next game will start
	 * @param {CallableFunction} startHandler called when tournament start
	 * @param {CallableFunction} finishHandler called when tournament finish
	 * @returns {Promise}
	 */
	async join(addParticipantHandler, delParticipantHandler, startHandler, finishHandler, errorHandler, goToHandler, disconnectHandler)
	{
		if (!await this.client.isAuthenticated())
			return null;
		
		let url = `${window.location.protocol[4] === 's' ? 'wss' : 'ws'}://${window.location.host}/ws/tournaments/${this.id}`;
		
		this._socket = new WebSocket(url);
		
		this.connected = true;
		this.isParticipating = false;

		this._startHandler = startHandler;
		this._finishHandler = finishHandler;
		this._addParticipantHandler = addParticipantHandler;
		this._delParticipantHandler = delParticipantHandler;
		this._errorHandler = errorHandler;
		this._disconnectHandler = disconnectHandler;
		this._goToHandler = goToHandler;

		this._socket.onmessage = this.onReceive.bind(this);

		this._socket.onclose = this.leave.bind(this);
	}
	
}

export { Tourmanent };