Allow dates to be used in timer command

And some general cleanup of a couple of functions.

util/timer/createTimer.js

@@ -1,17 +1,26 @@
-const fs = require('fs');
 const parseTime = require('./parseTime');
+const timeUntil = require('./timeUntil');
 const sqlite3 = require('sqlite3').verbose();
-module.exports = async function (message, args, compatibility) {
+module.exports = async function (message, args) {
 	const databasePath = 'data/database.db'
 	if (args.length < 2)
-		return message.channel.send("Please specify a time, and a message to send after the timer has finished");
+		return "Please specify a time, and a message to send after the timer has finished";
 	let currentUnixTime = Math.floor(new Date() / 1000);
-	let timeInSeconds = compatibility ? parseTime(args[0], currentUnixTime) : parseTime(args[1], currentUnixTime);
+
+	let timeInSeconds;
+	if(!isNaN(Date.parse(args[0])) && isNaN(parseTime(args[0], currentUnixTime))){
+		timeInSeconds = timeUntil(args[0]).totalInSeconds;
+		if(timeInSeconds < 0){
+			return "The date must not be in the past."
+		}
+	}else {
+		timeInSeconds = parseTime(args[0], currentUnixTime);
+	} 
 	if (isNaN(timeInSeconds)) {
-		return message.channel.send("Please specify a time, and a message to send after the timer has finished")
+		return "Please specify a time, and a message to send after the timer has finished"
 	}
-	let customMessage = compatibility ? args.slice(1).join(" ") : args.slice(2).join(" ");
-	let reminderTime = currentUnixTime + timeInSeconds
+	const customMessage = args.slice(1).join(" ")
+	const reminderTime = currentUnixTime + timeInSeconds
 	let newTimerID;
 	const db = new sqlite3.Database(databasePath)
 	let sendText = await new Promise((resolve, reject)=>{

util/timer/parseTime.js

@@ -1,7 +1,7 @@
 module.exports = function(time, currentUnixTime){
-	let timeInSeconds = parseFloat(time.slice(0, time.length - 1))
-	let letter = time.slice(time.length - 1)
-	if(!isNaN(letter)) return parseFloat(time) * 60;
+	let timeInSeconds = parseFloat(time)
+	const letterCount = time.length - timeInSeconds.toString().length;
+	const letter = time.slice(time.length - letterCount);
 	switch (letter.toUpperCase()) {
 		case "H":
 			timeInSeconds = timeInSeconds * 3_600;
@@ -14,7 +14,8 @@ module.exports = function(time, currentUnixTime){
 		case "D":
 			timeInSeconds = timeInSeconds * 86_400;
 			break;
-		case "T": // TODO: Make it so that I can have multiple letters per case, so that "TS" would work here.
+		case "TS": // Unix timestamp
+		case "T":
 			timeInSeconds = timeInSeconds - currentUnixTime;
 			break;
 		case "W":
@@ -22,17 +23,6 @@ module.exports = function(time, currentUnixTime){
 			break;
 		default:
 			timeInSeconds = NaN;
-			if(time.includes(':')) 
-				timeInSeconds = getTime(time, currentUnixTime); 
 	}
 	return timeInSeconds;
 }
-
-
-
-function getTime(time, currentUnixTime) {
-	
-
-
-	return timeInSeconds;
-}

util/timer/timeUntil.js

@@ -0,0 +1,20 @@
+module.exports = function(targetTime) {
+    const countDownDate = new Date(targetTime).getTime();
+    const now = new Date().getTime();
+  
+    const distance = countDownDate - now;
+    let days = Math.floor(distance / (1000 * 60 * 60 * 24));
+    let hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
+    let minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
+    let seconds = Math.floor((distance % (1000 * 60)) / 1000);
+  
+    if (seconds < 0) { // Due to how the math above works, if the input time is in the past, the time will be off by 1.
+      days = days + 1;
+      hours = hours + 1;
+      minutes = minutes + 1;
+      seconds = seconds + 1;
+    }
+    
+    const totalInSeconds = (days * 24 * 60 * 60) + (hours * 60 * 60) + (minutes * 60) + seconds;
+    return { days, hours, minutes, seconds, totalInSeconds };
+}