From 08baa19b4a62e62bd103d177c3f4454de199cf16 Mon Sep 17 00:00:00 2001
From: LisoUseInAIKyrios <118716522+LisoUseInAIKyrios@users.noreply.github.com>
Date: Thu, 23 Oct 2025 00:21:30 +0400
Subject: [PATCH] feat(Duolingo - Enable debug menu): Support latest app target
 (#6163)

---
 .../duolingo/debug/EnableDebugMenuPatch.kt    | 31 ++++++++++-------
 .../patches/duolingo/debug/Fingerprints.kt    | 33 ++++++++++++-------
 2 files changed, 41 insertions(+), 23 deletions(-)

diff --git a/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/EnableDebugMenuPatch.kt b/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/EnableDebugMenuPatch.kt
index 833f9dd7d..a507352e8 100644
--- a/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/EnableDebugMenuPatch.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/EnableDebugMenuPatch.kt
@@ -1,26 +1,35 @@
 package app.revanced.patches.duolingo.debug
 
-import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
+import app.revanced.patcher.extensions.InstructionExtensions.addInstruction
 import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
 import app.revanced.patcher.patch.bytecodePatch
-import com.android.tools.smali.dexlib2.iface.instruction.TwoRegisterInstruction
+import app.revanced.util.returnEarly
+import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
 
 @Suppress("unused")
 val enableDebugMenuPatch = bytecodePatch(
     name = "Enable debug menu",
-    use = false,
+    use = false
 ) {
-    compatibleWith("com.duolingo"("5.158.4"))
+    compatibleWith("com.duolingo")
 
     execute {
-        initializeBuildConfigProviderFingerprint.method.apply {
-            val insertIndex = initializeBuildConfigProviderFingerprint.patternMatch!!.startIndex
-            val register = getInstruction<TwoRegisterInstruction>(insertIndex).registerA
+        // It seems all categories are allowed on release. Force this on anyway.
+        debugCategoryAllowOnReleaseBuildsFingerprint.method.returnEarly(true)
 
-            addInstructions(
-                insertIndex,
-                "const/4 v$register, 0x1",
-            )
+        // Change build config debug build flag.
+        buildConfigProviderConstructorFingerprint.match(
+            buildConfigProviderToStringFingerprint.classDef
+        ).let {
+            val index = it.patternMatch!!.startIndex
+
+            it.method.apply {
+                val register = getInstruction<OneRegisterInstruction>(index).registerA
+                addInstruction(
+                    index + 1,
+                    "const/4 v$register, 0x1"
+                )
+            }
         }
     }
 }
diff --git a/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/Fingerprints.kt b/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/Fingerprints.kt
index 543e40b43..c3d663c83 100644
--- a/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/Fingerprints.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/duolingo/debug/Fingerprints.kt
@@ -4,16 +4,25 @@ import app.revanced.patcher.fingerprint
 import com.android.tools.smali.dexlib2.AccessFlags
 import com.android.tools.smali.dexlib2.Opcode
 
-/**
- * The `BuildConfigProvider` class has two booleans:
- *
- * - `isChina`: (usually) compares "play" with "china"...except for builds in China
- * - `isDebug`: compares "release" with "debug" <-- we want to force this to `true`
- */
-
-internal val initializeBuildConfigProviderFingerprint = fingerprint {
-    accessFlags(AccessFlags.PUBLIC, AccessFlags.CONSTRUCTOR)
-    returns("V")
-    opcodes(Opcode.IPUT_BOOLEAN)
-    strings("debug", "release", "china")
+internal val debugCategoryAllowOnReleaseBuildsFingerprint = fingerprint {
+    returns("Z")
+    parameters()
+    custom { method, classDef ->
+        method.name == "getAllowOnReleaseBuilds" && classDef.type == "Lcom/duolingo/debug/DebugCategory;"
+    }
+}
+
+internal val buildConfigProviderConstructorFingerprint = fingerprint {
+    accessFlags(AccessFlags.PUBLIC, AccessFlags.CONSTRUCTOR)
+    parameters()
+    opcodes(Opcode.CONST_4)
+}
+
+internal val buildConfigProviderToStringFingerprint = fingerprint {
+    parameters()
+    returns("Ljava/lang/String;")
+    strings("BuildConfigProvider(") // Partial string match.
+    custom { method, _ ->
+        method.name == "toString"
+    }
 }