var debug = false;

function logStr(message) {
	if (debug)
		channel.message(message);
}
function log(message, obj) {
	log(message + ": " + JSON.stringify(obj));
}

function getData(arg) {
	logStr("Getting data");
	var ret = parseName(arg);
	log("Initial split", ret);
	arg = ret[1];
	var obj = storage.get(ret[0]);
	log("obj before parsing", obj);
	if (!arg) {
		channel.message(obj);
		return;
	}
	try {
		obj = JSON.parse(obj);
	} catch (e) {
		channel.message("Data was not in json format");
		return;
	}
	log("obj after parsing", obj);
	while (arg) {
		logStr("===========");
		log("arg", arg);
		ret = parseName(arg);
		log("split", ret);
		arg = ret[1];
		var name = ret[0];
		if (obj === null) {
			channel.message("Data not found, noob");
			return;
		}
		if (name in obj)
			obj = obj[name];
		else
			obj = null;
		log("obj", obj);
	}
	channel.message(JSON.stringify(obj));
}

function setData(arg) {
	logStr("Setting data");
	var ret = parseName(arg);
	log("Initial split", ret);
	arg = ret[1];
	if (!arg || arg.startsWith("=")) {
		if (arg.startsWith("=")) {
			arg = arg.substring(1);
			arg = skipWhitespace(arg);
		}
		logStr("No path, setting \"" + ret[0] + "\" to \"" + arg + "\"");
		storage.set(ret[0], arg);
		channel.message("Data successfully stored");
		return;
	}
	var lastObj;
	var name = null;
	var obj = storage.get(ret[0]);
	log("obj before parsing", obj);
	try {
		obj = JSON.parse(obj);
	} catch (e) {
		channel.message("Data was not in json format");
		return;
	}
	log("obj after parsing", obj);
	var topLevelObj = obj;
	log("topLevelObj", topLevelObj);
	while (arg && !arg.startsWith("=")) {
		logStr("===========");
		log("arg", arg);
		lastObj = obj;
		ret = parseName(arg);
		log("split", ret);
		arg = ret[1];
		name = ret[0];
		if (obj === null)
			obj = {};
		if (name in obj)
			obj = obj[name];
		else
			obj = null;
		log("obj", obj);
	}
	if (arg.startsWith("="))
		arg = arg.substring(1);
	arg = skipWhitespace(arg);
	log("value before parsing", arg);
	log("lastObj before set", lastObj);
	log("topLevelObj before set", topLevelObj);
	try {
		lastObj[name] = JSON.parse(arg);
	} catch (e) {
		channel.message("json parse error:\n" + e.message);
		return;
	}
	log("value after parsing", lastObj[name]);
	log("lastObj after set", lastObj);
	log("topLevelObj after set", topLevelObj);
	storage.set(ret[0], JSON.stringify(topLevelObj));
	channel.message("Data stored");
}

function deleteData(arg) {
	logStr("Deleting data");
	var ret = parseName(arg);
	log("Initial split", ret);
	arg = ret[1];
	if (!arg) {
		logStr("No path");
		storage.delete(ret[0]);
	} else {
		var obj = storage.get(ret[0]);
		log("obj before parsing", obj);
		try {
			obj = JSON.parse(obj);
		} catch (e) {
			channel.message("Data was not in json format");
			return;
		}
		log("obj after parsing", obj);
		var topLevelObj = obj;
		var name = null;
		var lastObj;
		while (arg) {
			logStr("=============");
			log("arg", arg);
			lastObj = obj;
			ret = parseName(arg);
			log("split", ret);
			arg = ret[1];
			name = ret[0];
			if (obj == null) {
				channel.message("Data not found, noob");
				return;
			}
			if (name in obj)
				obj = obj[name];
			else
				obj = null;
			log("obj", obj);
		}
		if (obj === null) {
			channel.message("Data not found, noob");
			return;
		}
		log("lastObj before delete", lastObj);
		log("topLevelObj before delete", topLevelObj);
		delete lastObj[name];
		log("lastObj after delete", lastObj);
		log("topLevelObj after delete", topLevelObj);
		storage.set(ret[0], JSON.stringify(topLevelObj));
	}
	channel.message("Data deleted");
}

function parseName(arg) {
	arg = skipWhitespace(arg);
	var name = "";
	if (arg.startsWith("\"")) {
		var escaped = false;
		arg = arg.substring(1);
		while (arg) {
			var c = arg.charAt(0);
			arg = arg.substring(1);
			if (c == "\\") {
				if (!escaped) {
					escaped = true;
				} else {
					escaped = false;
					name += "\\";
				}
			} else {
				if (c == "\"" && !escaped)
					break;
				name += c;
				escaped = false;
			}
		}
		arg = skipWhitespace(arg);
		if (arg.startsWith("."))
			arg = arg.substring(1);
		arg = skipWhitespace(arg);
		return [name, arg];
	} else {
		while (arg && !arg.startsWith("=") && !arg.startsWith(".") && !(/^\s.+$/.test(arg))) {
			name += arg.charAt(0);
			arg = arg.substring(1);
		}
		arg = skipWhitespace(arg);
		if (arg.startsWith("."))
			arg = arg.substring(1);
		arg = skipWhitespace(arg);
		return [name, arg];
	}
}
function skipWhitespace(arg) {
	while (/^\s.+$/.test(arg))
		arg = arg.substring(1);
	return arg;
}


var arg = message.getContent();
if (arg.startsWith("//storage "))
	arg = arg.substring(10);
if (arg.startsWith("--debug ")) {
	arg = arg.substring(8);
	debug = true;
}
if (arg.startsWith("get ")) {
	getData(arg.substring(4));
} else if (arg.startsWith("set ")) {
	setData(arg.substring(4));
} else if (arg.startsWith("delete ")) {
	deleteData(arg.substring(7));
} else {
	channel.message("```\nUsage:\n//storage get path.to.data\n//storage set path.to.data=newValue\n//storage delete path.to.data\n```");
}