From 4b49e24ea7251ee7b722ed6a3545b31e4cd79cc1 Mon Sep 17 00:00:00 2001
From: josesilveiraa <85128820+josesilveiraa@users.noreply.github.com>
Date: Sat, 26 Nov 2022 11:10:09 -0300
Subject: [PATCH] feat(citra): `premium-unlock` patch (#1115)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>
---
 .../annotations/PremiumUnlockCompatbility.kt  |  7 ++++
 .../fingerprints/PremiumUnlockFingerprint.kt  |  7 ++++
 .../misc/premium/patch/PremiumUnlockPatch.kt  | 37 +++++++++++++++++++
 3 files changed, 51 insertions(+)
 create mode 100644 src/main/kotlin/app/revanced/patches/citra/misc/premium/annotations/PremiumUnlockCompatbility.kt
 create mode 100644 src/main/kotlin/app/revanced/patches/citra/misc/premium/fingerprints/PremiumUnlockFingerprint.kt
 create mode 100644 src/main/kotlin/app/revanced/patches/citra/misc/premium/patch/PremiumUnlockPatch.kt

diff --git a/src/main/kotlin/app/revanced/patches/citra/misc/premium/annotations/PremiumUnlockCompatbility.kt b/src/main/kotlin/app/revanced/patches/citra/misc/premium/annotations/PremiumUnlockCompatbility.kt
new file mode 100644
index 000000000..be23f1d38
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/citra/misc/premium/annotations/PremiumUnlockCompatbility.kt
@@ -0,0 +1,7 @@
+package app.revanced.patches.citra.misc.premium.annotations
+
+import app.revanced.patcher.annotation.Compatibility
+import app.revanced.patcher.annotation.Package
+
+@Compatibility([Package("org.citra.citra_emu")])
+internal annotation class PremiumUnlockCompatbility
\ No newline at end of file
diff --git a/src/main/kotlin/app/revanced/patches/citra/misc/premium/fingerprints/PremiumUnlockFingerprint.kt b/src/main/kotlin/app/revanced/patches/citra/misc/premium/fingerprints/PremiumUnlockFingerprint.kt
new file mode 100644
index 000000000..347c31a2d
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/citra/misc/premium/fingerprints/PremiumUnlockFingerprint.kt
@@ -0,0 +1,7 @@
+package app.revanced.patches.citra.misc.premium.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+
+object PremiumUnlockFingerprint : MethodFingerprint(
+    customFingerprint = { it.definingClass == "Lorg/citra/citra_emu/ui/main/MainActivity;" && it.name == "isPremiumActive" }
+)
\ No newline at end of file
diff --git a/src/main/kotlin/app/revanced/patches/citra/misc/premium/patch/PremiumUnlockPatch.kt b/src/main/kotlin/app/revanced/patches/citra/misc/premium/patch/PremiumUnlockPatch.kt
new file mode 100644
index 000000000..10d4eebea
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/citra/misc/premium/patch/PremiumUnlockPatch.kt
@@ -0,0 +1,37 @@
+package app.revanced.patches.citra.misc.premium.patch
+
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.MethodFingerprintExtensions.name
+import app.revanced.patcher.extensions.addInstructions
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultError
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patches.citra.misc.premium.annotations.PremiumUnlockCompatbility
+import app.revanced.patches.citra.misc.premium.fingerprints.PremiumUnlockFingerprint
+
+@Patch
+@Name("premium-unlock")
+@Description("Unlocks premium functions.")
+@PremiumUnlockCompatbility
+@Version("0.0.1")
+class PremiumUnlockPatch : BytecodePatch(
+    listOf(PremiumUnlockFingerprint)
+) {
+    override fun execute(context: BytecodeContext): PatchResult {
+        val result = PremiumUnlockFingerprint.result ?: return PatchResultError("${PremiumUnlockFingerprint.name} not found")
+
+        result.mutableMethod.addInstructions(
+            0,
+            """
+                const v0, 0x1
+                return v0
+            """
+        )
+        return PatchResultSuccess()
+    }
+}
\ No newline at end of file