feat: truncate-clock-time

src/pages/tools/time/truncate-clock-time/service.ts

@@ -0,0 +1,64 @@
+import { containsOnlyDigits } from '@utils/string';
+
+function compute(
+  timeArray: string[],
+  lineNumber: number,
+  onlySeconds: boolean,
+  zeroPrint: boolean,
+  zeroPadding: boolean
+): string {
+  if (timeArray[0] == '') {
+    return '';
+  }
+  if (timeArray.length > 3) {
+    throw new Error(`Time contains more than 3 parts on line ${lineNumber}`);
+  }
+  [...timeArray, '0', '0'].forEach((time, index) => {
+    if (!containsOnlyDigits(time)) {
+      throw new Error(
+        `Time doesn't contain valid ${
+          ['hours', 'minutes', 'seconds'][index]
+        } on line ${lineNumber}`
+      );
+    }
+  });
+
+  const slicedArray = onlySeconds
+    ? timeArray.slice(0, 2)
+    : timeArray.slice(0, 1);
+
+  if (zeroPrint) {
+    onlySeconds ? slicedArray.push('0') : slicedArray.push('0', '0');
+  }
+
+  return zeroPadding
+    ? slicedArray
+        .map((unit) => String(unit).padStart(2, '0')) // Ensures two-digit format
+        .join(':')
+    : slicedArray.join(':');
+}
+
+export function truncateClockTime(
+  input: string,
+  onlySeconds: boolean,
+  zeroPrint: boolean,
+  zeroPadding: boolean
+): string {
+  const result: string[] = [];
+
+  const lines = input.split('\n');
+
+  lines.forEach((line, index) => {
+    const timeArray = line.split(':');
+    const truncatedTime = compute(
+      timeArray,
+      index + 1,
+      onlySeconds,
+      zeroPrint,
+      zeroPadding
+    );
+    result.push(truncatedTime);
+  });
+
+  return result.join('\n');
+}