const Item = require("./item");
var nextId = 0;

class Room
{
	constructor(map)
	{
		this.id = nextId++;
		this.players = {};	// id => Player
		this.items = {};	// key => Item
		this.map = map;
	}
	addPlayer(p)
	{
		if (this.players[p] !== undefined) return false;

		this.players[p.id] = p;

		p.room = this;
		p.sendMessage("enter_room", {room_id:this.id, map:this.map, items:Object.values(this.items).map(i => i.getJSON())});

		this.broadcastMessage("new_player", {player_id:p.id});

		return true;
	}
	removePlayer(p)
	{
		if (this.players[p.id] === undefined) return false;

		delete this.players[p.id];

		this.broadcastMessage("remove_player", {player_id:p.id});

		var toDelete = [];
		for (var item of Object.values(this.items))
		{
			if (item.playerId == p.id && item.details.dod)	//deleteOnDisconnect
			{
				item.details.__delete__ = true;
				toDelete.push(item);
				console.log("Deleting:");
				console.log(item);
				delete this.items[item.key];
			}
		}
		this.updateItems(toDelete);
		//console.log(this.items);

		return true;
	}
	getItem(playerId, itemId)
	{
		const key = playerId + "_" + itemId;
		if (this.items[key] === undefined) return null;

		return this.items[key];
	}
	playerMessage(player, messageStr)
	{
		const message = JSON.parse(messageStr);
		switch (message.type)
		{
			case 'update_items':
				if (message.items !== undefined)
				{
					let toSend = [];
					for (var itemData of message.items)
					{
						if (itemData.item_id !== undefined)
						{
							const itemId = parseInt(itemData.item_id);
							let item = this.getItem(player.id, itemId);
							if (item == null)
							{
								item = new Item(player.id, itemId);
								this.items[item.key] = item;
								console.log("Inserting: (" + Object.values(this.items).length + ")");
								console.log(item);
							}
							const { item_id, player_id, key, ...cleanDetails } = itemData;
							item.details = cleanDetails;

							toSend.push(item);
						}
					}
					//console.log("ITEMS: ");
					//console.log(this.items);
					this.updateItems(toSend, player);
				}
				break;
		}
	}
	updateItems(items, skipPlayer = null)
	{
		if (items.length > 0)
		{
			var toSend = items.map(i => i.getJSON());
			//console.log("TOSEND: ");
			//console.log(toSend);
			this.broadcastMessage('update_items', {items:toSend}, skipPlayer);
		}
	}
	broadcastString(msg, skipPlayer = null)
	{
		for (var p of Object.values(this.playeres))
		{
			if (p == skipPlayer) continue;
			p.socket.send(msg);
		}
	}
	broadcastMessage(type, details, skipPlayer = null)
	{
		const msg = JSON.stringify({...details, type:type});
		for (var p of Object.values(this.players))
		{
			if (p == skipPlayer) continue;
			p.socket.send(msg);
		}
	}
}

module.exports = Room;