ANDROID_SDK_ROOT ?= /opt/android-sdk
ANDROID_NDK_ROOT ?= /opt/android-ndk
JAVA_HOME ?= /usr/lib/jvm/java-25-openjdk
PATH := $(JAVA_HOME)/bin:$(ANDROID_SDK_ROOT)/cmdline-tools/latest/bin:$(ANDROID_SDK_ROOT)/platform-tools:$(PATH)
APP_ID ?= org.julianfamily.keepassgo
APK_OUT ?= build/keepassgo.apk
APK_VERSION ?= 0.1.0.1
ANDROID_MIN_SDK ?= 28
ANDROID_TARGET_SDK ?= 35

.PHONY: apk
apk:
	@test -x "$(JAVA_HOME)/bin/java" || { echo "JAVA_HOME must point to a JDK 17+ install"; exit 1; }
	@test -d "$(ANDROID_SDK_ROOT)" || { echo "ANDROID_SDK_ROOT must point to an Android SDK install"; exit 1; }
	@test -d "$(ANDROID_NDK_ROOT)" || { echo "ANDROID_NDK_ROOT must point to an Android NDK install"; exit 1; }
	@test -x "$(ANDROID_SDK_ROOT)/cmdline-tools/latest/bin/sdkmanager" || { echo "Android SDK cmdline-tools are missing"; exit 1; }
	@test -d "$(ANDROID_SDK_ROOT)/platforms/android-$(ANDROID_TARGET_SDK)" || { echo "Android platform android-$(ANDROID_TARGET_SDK) is missing"; exit 1; }
	@test -d "$(ANDROID_SDK_ROOT)/build-tools" || { echo "Android build-tools are missing"; exit 1; }
	@mkdir -p "$(dir $(APK_OUT))"
	ANDROID_HOME="$(ANDROID_SDK_ROOT)" \
	ANDROID_SDK_ROOT="$(ANDROID_SDK_ROOT)" \
	ANDROID_NDK_ROOT="$(ANDROID_NDK_ROOT)" \
	JAVA_HOME="$(JAVA_HOME)" \
	go tool gogio -target android \
		-buildmode exe \
		-appid $(APP_ID) \
		-o $(APK_OUT) \
		-version $(APK_VERSION) \
		-minsdk $(ANDROID_MIN_SDK) \
		-targetsdk $(ANDROID_TARGET_SDK) \
		.