feat(nova-launcher): unlock-prime patch (#1463)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>

src/main/kotlin/app/revanced/patches/nova/prime/annotations/UnlockPrimeCompatibility.kt

@@ -0,0 +1,13 @@
+package app.revanced.patches.nova.prime.annotations
+
+import app.revanced.patcher.annotation.Compatibility
+import app.revanced.patcher.annotation.Package
+
+@Compatibility(
+    [
+        Package("com.teslacoilsw.launcher")
+    ]
+)
+@Target(AnnotationTarget.CLASS)
+@Retention(AnnotationRetention.RUNTIME)
+internal annotation class UnlockPrimeCompatibility

src/main/kotlin/app/revanced/patches/nova/prime/fingerprints/UnlockPrimeFingerprint.kt

@@ -0,0 +1,16 @@
+package app.revanced.patches.nova.prime.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import org.jf.dexlib2.Opcode
+
+object UnlockPrimeFingerprint : MethodFingerprint(
+    "V",
+    opcodes = listOf(
+        Opcode.IPUT_OBJECT,
+        Opcode.CONST_STRING,
+        Opcode.CONST_4,
+        Opcode.INVOKE_INTERFACE,
+        Opcode.MOVE_RESULT
+    ),
+    strings = listOf("1")
+)

src/main/kotlin/app/revanced/patches/nova/prime/patch/UnlockPrimePatch.kt

@@ -0,0 +1,50 @@
+package app.revanced.patches.nova.prime.patch
+
+import app.revanced.extensions.toErrorResult
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.addInstruction
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patches.nova.prime.annotations.UnlockPrimeCompatibility
+import app.revanced.patches.nova.prime.fingerprints.UnlockPrimeFingerprint
+import org.jf.dexlib2.builder.instruction.BuilderInstruction11x
+
+@Patch
+@Name("unlock-prime")
+@Description("Unlocks Nova Prime and all functions of the app.")
+@UnlockPrimeCompatibility
+@Version("0.0.1")
+class UnlockPrimePatch : BytecodePatch(
+    listOf(
+        UnlockPrimeFingerprint
+    )
+) {
+    private companion object {
+        // Any value except 0 unlocks prime, but 512 is needed for a protection mechanism
+        // which would reset the preferences if the value on disk had changed after a restart.
+        const val PRIME_STATUS: Int = 512
+    }
+
+    override fun execute(context: BytecodeContext): PatchResult {
+        UnlockPrimeFingerprint.result?.apply {
+            val insertIndex = scanResult.patternScanResult!!.endIndex + 1
+
+            val primeStatusRegister =
+                (mutableMethod.implementation!!.instructions[insertIndex - 1] as BuilderInstruction11x).registerA
+
+            mutableMethod.addInstruction(
+                insertIndex,
+                """
+                    const/16 v$primeStatusRegister, $PRIME_STATUS
+                """
+            )
+        } ?: UnlockPrimeFingerprint.toErrorResult()
+
+        return PatchResultSuccess()
+    }
+}