diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..ece3df001 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,19 +1,93 @@
-function setAlarm() {}
+let timer = null;
+let totalSeconds = 0;
-// DO NOT EDIT BELOW HERE
+function formatTime(seconds) {
+ const mins = Math.floor(seconds / 60);
+ const secs = seconds % 60;
+ return `${String(mins).padStart(2, "0")}:${String(secs).padStart(2, "0")}`;
+}
-var audio = new Audio("alarmsound.mp3");
+function parseInputTime(value) {
+ if (!/^\d{2}:\d{2}$/.test(value)) return null;
+ const [m, s] = value.split(":").map(Number);
+ if (s > 59) return null;
+ return m * 60 + s;
+}
-function setup() {
- document.getElementById("set").addEventListener("click", () => {
- setAlarm();
- });
+function updateDisplay() {
+ const heading = document.getElementById("timeRemaining");
+ const input = document.getElementById("alarmSet");
+
+ const formatted = formatTime(totalSeconds);
+
+ input.value = formatted;
+ heading.innerHTML = `Time Remaining:
${formatted}`;
+}
- document.getElementById("stop").addEventListener("click", () => {
- pauseAlarm();
- });
+function incrementTime(amount) {
+ totalSeconds += amount;
+ if (totalSeconds < 0) totalSeconds = 0;
+ updateDisplay();
}
+function resetAlarmState() {
+ if (timer) clearInterval(timer);
+ timer = null;
+
+ audio.pause();
+ audio.currentTime = 0;
+}
+
+function setAlarm() {
+ resetAlarmState();
+ const input = document.getElementById("alarmSet");
+ const parsed = parseInputTime(input.value);
+
+ if (parsed === null) {
+ alert("Use MM:SS format");
+ return;
+ }
+
+ totalSeconds = parsed;
+ updateDisplay();
+
+ if (totalSeconds === 0) {
+ playAlarm();
+ return;
+ } //Alarm plays immediately if time is set to 00:00
+
+ timer = setInterval(() => {
+ totalSeconds -= 1;
+ if (totalSeconds <= 0) {
+ totalSeconds = 0;
+ updateDisplay();
+ clearInterval(timer);
+ timer = null;
+ playAlarm();
+ return;
+ }
+ updateDisplay();
+ }, 1000);
+}
+
+function stopTimer() {
+ if (timer) clearInterval(timer);
+ timer = null;
+ totalSeconds = 0;
+ updateDisplay();
+ audio.pause();
+}
+
+document.getElementById("up").addEventListener("click", () => incrementTime(5));
+document
+ .getElementById("down")
+ .addEventListener("click", () => incrementTime(-5));
+document.getElementById("set").addEventListener("click", setAlarm);
+document.getElementById("stop").addEventListener("click", stopTimer);
+
+// DO NOT EDIT BELOW HERE
+var audio = new Audio("alarmsound.mp3");
+
function playAlarm() {
audio.play();
}
@@ -21,5 +95,3 @@ function playAlarm() {
function pauseAlarm() {
audio.pause();
}
-
-window.onload = setup;
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..b0f7068a1 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,17 +4,35 @@
- Title here
+ Alarm Clock App
-
-
Time Remaining: 00:00
-
-
+
+
-
-
+
+
+
+
+
+
+
+
+
+
+ Time Remaining:
00:00
+
+
+
+