Display total VOD duration from provider metadata and stream probes

Adapted from MikaelKW/nodecast-tv-plus commit 9c6416cdba40813d44d21c8d76e31e4d9ab3155f.

Co-authored-by: Mikael <mikaelkwessel@gmail.com>

public/js/components/VodDuration.js

@@ -0,0 +1,57 @@
+(function (root, factory) {
+    const api = factory();
+    if (typeof module === 'object' && module.exports) module.exports = api;
+    if (root) root.VodDuration = api;
+}(typeof globalThis !== 'undefined' ? globalThis : this, function () {
+    function parse(value) {
+        if (typeof value === 'number') {
+            return Number.isFinite(value) && value > 0 ? value : 0;
+        }
+
+        if (typeof value !== 'string') return 0;
+        const normalized = value.trim();
+        if (!normalized) return 0;
+
+        if (/^\d+(?:\.\d+)?$/.test(normalized)) {
+            const seconds = Number(normalized);
+            return Number.isFinite(seconds) && seconds > 0 ? seconds : 0;
+        }
+
+        const parts = normalized.split(':');
+        if (parts.length < 2 || parts.length > 3 || parts.some(part => !/^\d+$/.test(part))) {
+            return 0;
+        }
+
+        const numbers = parts.map(Number);
+        if (numbers.slice(parts.length === 3 ? -2 : -1).some(part => part >= 60)) return 0;
+
+        const seconds = parts.length === 3
+            ? (numbers[0] * 3600) + (numbers[1] * 60) + numbers[2]
+            : (numbers[0] * 60) + numbers[1];
+        return Number.isFinite(seconds) && seconds > 0 ? seconds : 0;
+    }
+
+    function firstValid(...values) {
+        for (const value of values) {
+            const duration = parse(value);
+            if (duration > 0) return duration;
+        }
+        return 0;
+    }
+
+    function fromContent(content = {}) {
+        if (!content || typeof content !== 'object') return 0;
+        return firstValid(
+            content.durationSeconds,
+            content.duration_secs,
+            content.duration,
+            content.runtime_secs,
+            content.info?.duration_secs,
+            content.info?.duration,
+            content.movie_data?.duration_secs,
+            content.movie_data?.duration
+        );
+    }
+
+    return { parse, firstValid, fromContent };
+}));