From a911996070d1990a2487ca948239a8fcad393fd4 Mon Sep 17 00:00:00 2001
From: Mark Qvist <mark@unsigned.io>
Date: Mon, 24 Nov 2025 01:46:51 +0100
Subject: [PATCH] Build native LXST filterlib.so and inject into APK

---
 recipes/lxst/__init__.py | 33 +++++++++++++++++++++++++++++++++
 sbapp/Makefile           | 10 ++++++++--
 sbapp/buildozer.spec     |  4 ++--
 3 files changed, 43 insertions(+), 4 deletions(-)
 create mode 100644 recipes/lxst/__init__.py

diff --git a/recipes/lxst/__init__.py b/recipes/lxst/__init__.py
new file mode 100644
index 0000000..ec6639c
--- /dev/null
+++ b/recipes/lxst/__init__.py
@@ -0,0 +1,33 @@
+"""
+Android Bluetooth Low Energy
+"""
+from pythonforandroid.recipe import PythonRecipe
+from pythonforandroid.toolchain import current_directory, info, shprint
+import sh
+from os.path import join
+
+
+class LXSTRecipe(PythonRecipe):
+    name = 'lxst_recipe'
+    depends = ['python3', 'setuptools', 'android', "cffi"]
+    call_hostpython_via_targetpython = False
+    install_in_hostpython = True
+
+    def prepare_build_dir(self, arch):
+        build_dir = self.get_build_dir(arch)
+        assert build_dir.endswith(self.name)
+        shprint(sh.rm, '-rf', build_dir)
+        shprint(sh.mkdir, build_dir)
+
+        srcs = ('/home/markqvist/Information/Source/LXST/LXST', '/home/markqvist/Information/Source/LXST/setup.py', '/home/markqvist/Information/Source/LXST/README.md')
+
+        for filename in srcs:
+            print(f"Copy {join(self.get_recipe_dir(), filename)} to {build_dir}")
+            shprint(sh.cp, '-a', join(self.get_recipe_dir(), filename),
+                    build_dir)
+
+    def postbuild_arch(self, arch):
+        super(LXSTRecipe, self).postbuild_arch(arch)
+        info("LXST native build completed")
+
+recipe = LXSTRecipe()
diff --git a/sbapp/Makefile b/sbapp/Makefile
index 8eacb30..cb54e64 100644
--- a/sbapp/Makefile
+++ b/sbapp/Makefile
@@ -47,6 +47,11 @@ injectxml:
 	cp patches/AndroidManifest.tmpl.xml .buildozer/android/platform/build-arm64-v8a/dists/sideband/templates/
 	cp patches/p4a_build.py .buildozer/android/platform/build-arm64-v8a/dists/sideband/build.py
 	
+injectlibs:
+	@(echo Injecting native libs...)
+	cp .buildozer/android/platform/build-arm64-v8a/dists/sideband/_python_bundle__arm64-v8a/_python_bundle/site-packages/LXST/filterlib.so LXST/
+	@(sleep 1)
+
 debug:
 	buildozer android debug
 
@@ -83,10 +88,11 @@ release:
 
 postbuild:
 	$(MAKE) cleanrns
+	-(rm ../LXST/filterlib.so)
 
-apk: prepare prebake pacthfiles fetchshare release postbuild
+apk: prepare prebake pacthfiles fetchshare injectlibs release postbuild
 
-devapk: prepare prebake pacthfiles fetchshare debug postbuild
+devapk: prepare prebake pacthfiles fetchshare injectlibs debug postbuild
 
 version:
 	@(echo $$(python ./gv.py))
diff --git a/sbapp/buildozer.spec b/sbapp/buildozer.spec
index c5bbffe..af3020e 100644
--- a/sbapp/buildozer.spec
+++ b/sbapp/buildozer.spec
@@ -4,7 +4,7 @@ package.name = sideband
 package.domain = io.unsigned
 
 source.dir = .
-source.include_exts = py,png,jpg,jpeg,webp,ttf,kv,pyi,typed,so,0,1,2,3,atlas,frag,html,css,js,whl,zip,gz,woff2,pdf,epub,pgm,opus
+source.include_exts = py,png,jpg,jpeg,webp,ttf,kv,pyi,typed,so,0,1,2,3,atlas,frag,html,css,js,whl,zip,gz,woff2,pdf,epub,pgm,opus,h,c
 source.include_patterns = assets/*,assets/fonts/*,assets/audio/notifications/*,share/*
 source.exclude_patterns = app_storage/*,venv/*,Makefile,./Makefil*,requirements,precompiled/*,parked/*,./setup.py,Makef*,./Makefile,Makefile,bin/*,build/*,dist/*,__pycache__/*
 
@@ -12,7 +12,7 @@ version.regex = __version__ = ['"](.*)['"]
 version.filename = %(source.dir)s/main.py
 android.numeric_version = 20251122
 
-requirements = kivy==2.3.0,libbz2,sqlite3,pillow==10.2.0,qrcode==7.3.1,usb4a,usbserial4a,able_recipe,libwebp,libogg,libopus,opusfile,numpy,cryptography,ffpyplayer,codec2,pycodec2,sh,pynacl,typing-extensions,mistune>=3.0.2,beautifulsoup4
+requirements = kivy==2.3.0,libbz2,sqlite3,pillow==10.2.0,qrcode==7.3.1,usb4a,usbserial4a,able_recipe,libwebp,libogg,libopus,opusfile,numpy,cryptography,ffpyplayer,codec2,pycodec2,sh,pynacl,typing-extensions,mistune>=3.0.2,beautifulsoup4,lxst
 
 android.gradle_dependencies =  com.android.support:support-compat:28.0.0
 #android.enable_androidx = True