Bug 42195: [android] Fix "Whats new URL"

mobile/android/fenix/app/src/main/java/org/mozilla/fenix/components/menu/middleware/MenuNavigationMiddleware.kt

@@ -130,7 +130,7 @@ class MenuNavigationMiddleware(
                 )
 
                 is MenuAction.Navigate.ReleaseNotes -> openToBrowser(
-                    BrowserNavigationParams(url = SupportUtils.WHATS_NEW_URL),
+                    BrowserNavigationParams(url = SupportUtils.getTorWhatsNewUrl()),
                 )
 
                 is MenuAction.Navigate.Tools -> navHostController.navigate(route = TOOLS_MENU_ROUTE)

mobile/android/fenix/app/src/main/java/org/mozilla/fenix/home/HomeMenuView.kt

@@ -196,7 +196,7 @@ class HomeMenuView(
                 Events.whatsNewTapped.record(NoExtras())
 
                 homeActivity.openToBrowserAndLoad(
-                    searchTermOrURL = SupportUtils.WHATS_NEW_URL,
+                    searchTermOrURL = SupportUtils.getTorWhatsNewUrl(),
                     newTab = true,
                     from = BrowserDirection.FromHome,
                 )

mobile/android/fenix/app/src/main/java/org/mozilla/fenix/settings/SupportUtils.kt

@@ -38,7 +38,7 @@ object SupportUtils {
     const val MEITUAN_URL = "https://tb.j5k6.com/6ZSOp"
     const val GOOGLE_US_URL = "https://www.google.com/webhp?client=firefox-b-1-m&channel=ts"
     const val GOOGLE_XX_URL = "https://www.google.com/webhp?client=firefox-b-m&channel=ts"
-    const val WHATS_NEW_URL = "https://www.torproject.org/releases/"
+//    const val WHATS_NEW_URL = "https://www.torproject.org/releases/"
     const val DONATE_URL = "https://donate.torproject.org/"
     const val TB_MANUAL_URL = "https://tb-manual.torproject.org/mobile-tor"
 
@@ -109,6 +109,21 @@ object SupportUtils {
         return TB_MANUAL_URL
     }
 
+    fun getTorWhatsNewUrl(): String {
+        val fullVersionName: String = BuildConfig.VERSION_NAME // e.g. "115.2.1-beta (13.5a5)"
+        if (!fullVersionName.contains('(') || !fullVersionName.contains(')')) {
+            return "https://blog.torproject.org/"
+        }
+        val versionNumber: String = fullVersionName.substring(
+            fullVersionName.indexOf('(') + 1,
+            fullVersionName.indexOf(')'),
+        ) // e.g. "13.5a5"
+        val alpha: String = if (versionNumber.contains('a')) "alpha-" else ""
+        val versionNumberNoDecimals: String =
+            versionNumber.split('.').joinToString("") // e.g. "135a5"
+        return "https://blog.torproject.org/new-${alpha}release-tor-browser-${versionNumberNoDecimals}/" // e.g. "https://blog.torproject.org/new-alpha-release-tor-browser-135a5/
+    }
+
     fun getMozillaPageUrl(page: MozillaPage, locale: Locale = Locale.getDefault()): String {
         val path = page.path
         val langTag = getLanguageTag(locale)

mobile/android/fenix/app/src/main/java/org/mozilla/fenix/settings/about/AboutFragment.kt

@@ -134,7 +134,7 @@ class AboutFragment : Fragment(), AboutPageListener {
             AboutPageItem(
                 AboutItem.ExternalLink(
                     WHATS_NEW,
-                    SupportUtils.WHATS_NEW_URL,
+                    SupportUtils.getTorWhatsNewUrl(),
                 ),
                 // Note: Fenix only has release notes for 'Release' versions, NOT 'Beta' & 'Nightly'.
                 getString(R.string.about_whats_new, getString(R.string.firefox)),

mobile/android/fenix/app/src/test/java/org/mozilla/fenix/home/HomeMenuViewTest.kt

@@ -216,7 +216,7 @@ class HomeMenuViewTest {
             WhatsNew.userViewedWhatsNew(testContext)
 
             homeActivity.openToBrowserAndLoad(
-                searchTermOrURL = SupportUtils.WHATS_NEW_URL,
+                searchTermOrURL = SupportUtils.getTorWhatsNewUrl(),
                 newTab = true,
                 from = BrowserDirection.FromHome,
             )

mobile/android/fenix/app/src/test/java/org/mozilla/fenix/settings/SupportUtilsTest.kt

@@ -25,10 +25,10 @@ class SupportUtilsTest {
             "https://support.mozilla.org/1/mobile/20/Android/fr/tracking-protection-firefox-android",
             SupportUtils.getSumoURLForTopic(mockContext("2 0"), SupportUtils.SumoTopic.TRACKING_PROTECTION, Locale("fr")),
         )
-        assertEquals(
-            "https://www.mozilla.org/firefox/android/notes",
-            SupportUtils.WHATS_NEW_URL,
-        )
+//        assertEquals(
+//            "https://www.mozilla.org/firefox/android/notes",
+//            SupportUtils.WHATS_NEW_URL,
+//        )
     }
 
     @Test
@@ -63,7 +63,7 @@ class SupportUtilsTest {
         )
         assertEquals(
             "https://www.torproject.org/releases/",
-            SupportUtils.WHATS_NEW_URL
+            SupportUtils.getTorWhatsNewUrl()
         )
     }