London| 26-ITP-May | Mandip Sanger | Sprint 3 | Alarm Clock

Sprint-3/alarmclock/alarmclock.js

@@ -1,7 +1,64 @@
-function setAlarm() {}
+let timer;
 
-// DO NOT EDIT BELOW HERE
+function setAlarm() {
+  const input = document.getElementById("alarmSet");
+  const heading = document.getElementById("timeRemaining");
+
+  // Step 1: Retrieve input value
+  const inputValue = input.value;
+
+  // Step 2: Validate if input is a number
+  const numberValue = Number(inputValue);
+  if (isNaN(numberValue)) {
+    alert("Please enter a valid number.");
+    return; // Exit if not a number
+  }
+
+  // Step 3: Validate if it is an integer
+  if (!Number.isInteger(numberValue)) {
+    alert("Please enter an integer value.");
+    return; // Exit if not an integer
+  }
+
+  // Step 4: Validate if it is greater than 0
+  if (numberValue <= 0) {
+    alert("Please enter a number greater than 0.");
+    return; // Exit if not greater than 0
+  }
+
+  // If all validation passes
+  let timeRemaining = numberValue;
+
+  // Function to format time
+  function formatTime(totalSeconds) {
+    const minutes = Math.floor(totalSeconds / 60);
+    const seconds = totalSeconds % 60;
+    return `Time Remaining: ${String(minutes).padStart(2, "0")}:${String(seconds).padStart(2, "0")}`;
+  }
 
+  // Show starting time
+  heading.innerText = formatTime(timeRemaining);
+
+  // Stop existing timer
+  clearInterval(timer);
+
+  // Start countdown
+  timer = setInterval(() => {
+    timeRemaining--;
+
+    if (timeRemaining <= 0) {
+      timeRemaining = 0;
+      heading.innerText = formatTime(timeRemaining);
+      clearInterval(timer);
+      playAlarm();
+      return;
+    }
+
+    heading.innerText = formatTime(timeRemaining);
+  }, 1000);
+}
+
+// DO NOT EDIT BELOW HERE
 var audio = new Audio("alarmsound.mp3");
 
 function setup() {