handle mp4 links for playing video

Author: yogeshbhagatcode

course/src/main/java/org/openedx/course/presentation/unit/video/VideoUnitFragment.kt

@@ -198,8 +198,9 @@ class VideoUnitFragment : Fragment(R.layout.fragment_video_unit) {
             val movieMetadata = MediaMetadata.Builder()
                 .setMediaType(MediaMetadata.MEDIA_TYPE_MOVIE)
                 .build()
+            val normalizedUrl = normalizeUrl(viewModel.videoUrl)
             val mediaItem = MediaItem.Builder().setMediaMetadata(movieMetadata)
-                .setUri(viewModel.videoUrl)
+                .setUri(normalizedUrl)
                 .setMimeType("video/*")
                 .build()
 
@@ -292,6 +293,19 @@ class VideoUnitFragment : Fragment(R.layout.fragment_video_unit) {
         }
     }
 
+    // Convert to https when possible (helps avoid cleartext/network-security issues).
+    private fun normalizeUrl(url: String?): String? {
+        if (url.isNullOrBlank()) return url
+        val trimmed = url.trim()
+        return try {
+            if (trimmed.startsWith("http://", ignoreCase = true)) {
+                trimmed.replaceFirst("http://", "https://", ignoreCase = true)
+            } else trimmed
+        } catch (e: Exception) {
+            trimmed
+        }
+    }
+
     companion object {
         private const val ARG_BLOCK_ID = "blockId"
         private const val ARG_VIDEO_URL = "videoUrl"