// Moves card positions down/up for the old/new element for player in room
function setCardPosition(roomId, player, card, newPosition, newElement, oldPosition, oldElement){

	// Move anything in the old boardElement after the old listPosition down by one
	moveElementPositions(roomId, player, 0, oldElement, oldPosition);

	// Move anything in the new boardElement after (including) the new listPosition up by one
	moveElementPositions(roomId, player, 1, newElement, newPosition);

	// Then fit the card into the new gap that's opened up
	listPosition[card] = newPosition;

	// Remove from oldElement
	delete oldElement[card]
	// Add to newElement
	newElement[card] = newPosition;

}

// direction 0 up, 1 down
function moveElementPositions(roomId, player, direction, element, position){

	position = position;
	listPosition = global.roomData[roomId].itemData.component.listPosition;

	for (const [key, value] of Object.entries(element)) {

		if(global.roomData[roomId].itemData.component.player[key] != player){
			continue;
		}


		// Move down from (not including) the position passed
		if(direction == 0 && listPosition[key] > position){
			listPosition[key]--;
		}

		// Move everything from (including) the new position up
		if(direction == 1 && listPosition[key] >= position){
			console.log('hit');
			console.log(listPosition[key]);
			console.log(position);
			listPosition[key]++;
		}

	}

}

function canAttack(roomId, playerId, cardId){

	if(cardId in global.roomData[roomId].itemData.component.cardStatus.tapped){
		return false;
	}

	return true;

}
function getTargetableCards(roomId, playerId, cardId){

	// i.e. If no flight/reach, you cant attack flight, if not all shield tapped, cant attack tapped shield
	// TODO: The above, for now just letting all units/shields targetable
	
	let targetable = {};
	// Board
	for (const [key, value] of Object.entries(global.roomData[roomId].itemData.component.board)) {
		// If not the players card (for now, will need better checks in future)
		if(global.roomData[roomId].itemData.player[key] !== playerId){
			targetable[key] = key;	
		}
	}
	// Shield
	for (const [key, value] of Object.entries(global.roomData[roomId].itemData.component.shield)) {
		// If not the players card (for now, will need better checks in future)
		if(global.roomData[roomId].itemData.player[key] !== playerId){
		//if(!(key in global.roomData[roomId].itemData.player[playerId])){
			targetable[key] = key;	
		}
	}

	console.log(targetable);
	return targetable;

}


module.exports = {
	 setCardPosition
	,canAttack
	,getTargetableCards
};