const sqlite = require('better-sqlite3');
const db = new sqlite('the_big_db.db', { verbose: console.log });

var sockets = new Map();

function interpret(context, subject, command) {
	const words = command.split(' ');

	const verbs = findVerbs(context, subject);
	// first word is either a subject or a verb. either way there must be a verb.
	// check if the first word is in the list of verbs.
	const [first, second, third, ...rest] = words;
	if (second in verbs) {
		executeVerb(verbs.get(second), first, third, ...rest);
	} else {
		executeVerb(verbs.get(first), subject, second, third, ...rest)
	}
}

function findVerbs(location, actor) {
	// check for verbs on actor
	// check for verbs on objects in location
	// check for verbs on location
	const out = new Map();
	out.set("look", 29);
	return out;
}

function executeVerb(verb, subject, object, ...rest) {
	lookUpObject(verb).fn(subject, object, ...rest)
}

const objectQuery = db.prepare('select * from pages where id=?');
function lookUpObject(id) {
	// return objectQuery.get(id);
	if (id == 30) return {name: "shoofle", contents: "this is a shoofle", location: 1};
	if (id == 29) return {
		name: "look", 
		contents: "send description of direct object to subject's socket", 
		fn: (subject, object, ...rest) => {
			sockets.get(subject)?.send(`you looked around! subject: ${subject} object: ${object} args: ${rest}`);
			console.log(`${subject} looked at ${object} with args ${rest}`);
		}
	};
}

module.exports = { interpret, sockets, lookUpObject };