// For anything related to the actual game itself (kinda)
// this will be split into different bits, but should be what manages a rooms
// game states, and alladat
// Basically here to prevent circular dependencies (where I can)


// PlayerId is using array 0,1,2 for now, not the actual id
// actual Id would be better, but the player should be passed correctly
// from the client. They can edit data, but server-side validation SHOULD prevent
// in the future
function passTurn(roomId, playerId){

	// TODO:Check playerId and roomId before doing the stuff, to verify the user
	// IS the user, and in the room

	let playerTurn = global.roomData[roomId].itemData.component.playerTurn;
	//global.socketAlert(roomData[roomId].playerData[playerId].socketId, playerTurn, 'log');

	if(playerTurn != playerId){
		global.socketAlert(roomData[roomId].playerData[playerId].socketId, 'Not your turn', 'alert');
		return false;
	};

	// Turns are 0,1,0,1 at the mo, no coinflip or re-order, etc. so this JANK is ok for now
	// %2 as 2 players and Ids are 0 and 1 so it works
	let newPlayerTurn = (playerTurn + 1)%maxPlayersPerRoom;
	global.roomData[roomId].itemData.component.playerTurn = newPlayerTurn;

	// If it's back to the player that went first, the turn count increased too
	if(playerTurn == 0){
		global.roomData[roomId].itemData.component.turn++;
	}

	// Send turn data to each player
	// Probably via the sockets in room (as could be spectators in future)
	let clients = global.io.sockets.adapter.rooms.get(roomId);
	for (const clientId of clients) {

		const clientSocket = global.io.sockets.sockets.get(clientId);
		console.log('>> '+clientSocket.playerId+' passed turn');

		// Send the data back
		let turnData = {
			'playerTurn': newPlayerTurn, 
			'turn': global.roomData[roomId].itemData.component.turn,
		};

		global.io.to(clientSocket.id).emit('responsePassTurn', turnData);

	}

	// Let the player know it's their turn via alert too (in case tabbed out)
	global.socketAlert(roomData[roomId].playerData[newPlayerTurn].socketId, 'Your turn', 'alert');


	// Start of the new players turn, draw a card
	drawACard(roomId, newPlayerTurn);

	
}

function drawACard(roomId, playerId){
	
	if(global.roomData[roomId].itemData.component.cardCount.hand[playerId] >= 2){
		global.socketAlert(roomData[roomId].playerData[playerId].socketId, 'Hand full; cannot draw card', 'alert');
		return false;
	}


	// Change position to last position available in hand
	let fromPosition = global.roomData[roomId].itemData.component.cardCount.deck[playerId]; // 'Bottom' of deck
	let toPosition = global.roomData[roomId].itemData.component.cardCount.hand[playerId]; // Rightmost hand pos

	
	// from inDeck to hand
	// change the listPositions of both (only return listPosition of hand ids?)
	
	// Reduce deckSize by 1 for the player that drew
	global.roomData[roomId].itemData.component.cardCount.deck[playerId]--;
	// And increase the hand size by 1
	global.roomData[roomId].itemData.component.cardCount.hand[playerId]++;
	
	// TODO: Move card from deck to hand for the player. Dupe what I've got in board for
	// this, but tidy it up
	//global.roomData[roomId].itemData.component.inDeck = newPlayerTurn;
	//global.roomData[roomId].itemData.component.hand = newPlayerTurn;
	

	// Then emit the deckSize and hand size to all the player's sockets
	let clients = global.io.sockets.adapter.rooms.get(roomId);
	for (const clientId of clients) {

		const clientSocket = global.io.sockets.sockets.get(clientId);
		console.log('>> '+clientSocket.playerId+' drew card');

		// Send the data back
		global.io.to(clientSocket.id).emit(
			'responseDrawCard'
			,global.roomData[roomId].itemData.component.cardCount
		);

	}
	
	// Emit the 'hand' and related cardData for cards in the players hand
	
	
}


module.exports = {
	passTurn
};