var Commands = function(player, viewport, meter, messager) {
	this.update = function() {
		viewport.setDamage(player.getShip('damage'));
		viewport.setState(player.getShip('state'));

		var cargo = document.getElementById('cargo');
		cargo.innerHTML = "";
		for ( var key in player.inventory) {
			if (player.inventory[key] != 0) {
				cargo.innerHTML += "<p>" + key + " " + player.inventory[key]
						+ "</p>";
			}
		}
		var ship = document.getElementById('shipStatus');
		ship.innerHTML = "status: " + player.getShip('state');

		var actions = document.getElementById('shipActions');
		var repairButton = document.getElementById("repair");
		repairButton.style.display = "none";
		if (player.getShip('damage') > 0
				&& repairButton.style.display == "none") {
			repairButton.style.display = "block";
		}
	};

	this.repair = function() {
		if (!meter.isRunning()) {
			if (player.getItem('spare part') > 0) {
				meter.set("repairing", 10, function() {
					player.addItem('spare part', -1);
					player.addShip('damage', -1);
					if (player.getShip('damage') <= 0) {
						player.setShip('state', 'idle');
					}
					commands.update();
				});
			} else {
				messager.warning("Repairs require at least 1 spare part.");
			}
		}
		this.update();

	};

	this.travel = function() {
		if (!meter.isRunning()) {
			if (player.getShip('damage') > 0) {
				messager.warning("Your ship is damaged and cannot travel.");
			} else if (player.getItem('fuel') == null || player.getItem('fuel') < 1) {
				messager.warning("You do not have enough fuel.");
			} else {
				player.setShip('state', 'travel');
				meter.set("traveling", 10, function() {
					player.addItem('fuel', -1);
					player.setShip('state', 'idle');
					commands.update();

				});
			}
		}
		this.update();
	};

	this.idle = function() {
		player.setShip('state', 'idle');
	};

	this.adrift = function() {
		player.setShip('state', 'adrift');
		meter.set("[error]", 0, function() {
			commands.update();
		});
	};

	this.craft = function(item, scale) {
		if (scale == null) {
			scale = 1;
		}

		if (!meter.isRunning()) {
			var recipie = recipies[item];

			if (recipie == null) {
				messager.warning("That is not a valid thing to replicate.");
				return;
			}
			var ingredients = recipie['ingredients'];
			for ( var key in ingredients) {
				var inventoryAmount = player.getItem(key);
				if (inventoryAmount == null
						|| inventoryAmount < ingredients[key] * scale) {
					messager.warning("You need at least " + ingredients[key]
							* scale + " " + key + " to craft "
							+ recipie['amount'] * scale + " " + item);
					return;
				}
			}
			meter.set("crafting " + item, 10 * scale, function() {
				player.addItem(item, recipie['amount'] * scale);
				for ( var key in ingredients) {
					var inventoryAmount = player.getItem(key);
					player.addItem(key, -(ingredients[key] * scale));
				}
				commands.update();
			});
		}
		this.update();
	};
};
var commands = new Commands(player, viewport, meter, messager);