.ONESHELL:
SHELL=/bin/makefile-bash-wrapper.sh

# symlink
./app.apk:  ./result/app.apk
	ln -sfrv ./result/app.apk ./app.apk

# zipalign and sign again (second signing)
./result/app.apk : ./result/signed.apk app-config.sh
	source app-config.sh; $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.buildtools.version.current)/zipalign -v -f 4 $< $@
	source app-config.sh; $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.buildtools.version.current)/apksigner sign \
		--ks ToyKey.keystore --key-pass pass:armena --ks-pass pass:armena  $@

# sign the apk file (first sign)
./result/signed.apk : ./result/unsigned.apk ./ToyKey.keystore ./result
	jarsigner -verbose -keystore ./ToyKey.keystore -storepass armena -keypass armena -signedjar $@ $< helljniKey

# make a "keystore" for the cryptographic signing stuff
./ToyKey.keystore : 
	keytool -genkeypair -validity 1000 -dname "CN=alexander,O=Android,C=JPN" -keystore $@ \
	-storepass armena -keypass armena -alias helljniKey -keyalg RSA -v

# aapt "package" together the dalvik/hex stuff (and "assets" and "res")
./result/unsigned.apk : ./bin/classes.dex  ./result ./assets  ./bin ./AndroidManifest.xml
	rm -rvf "$@"
	source app-config.sh; $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.buildtools.version.current)/aapt package \
	  -v -u -f -M ./AndroidManifest.xml -S ./res \
	  -I $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.platforms.version.current)/android.jar -A ./assets -F $@ ./bin

# convert "java class"es files (i.e bytecode to dalvic/d8 android thing
./bin/classes.dex : ./obj/package ./obj/package/AppActivity.class ./bin
	ls ./obj/package/*.class
	source app-config.sh; $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.buildtools.version.current)/d8 $$(realpath --relative-to=. $<)/*.class \
	  --lib $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.platforms.version.current)/android.jar --output bin

# compile (javac) the class from 
./obj/package/AppActivity.class : ./src/package/AppActivity.java  ./src/package/R.java ./obj/package 
	javac -d ./obj -classpath $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.platforms.version.current)/android.jar \
	  -sourcepath ./src $$(realpath --relative-to=/src $<)

# generate teh AppActivity.java (template)
./src/package/AppActivity.java: ./src/package app-config.sh
	./.Makefile.scripts/make--AppActivity.java.sh > $@

# make the resources "R.java" thing
./src/package/R.java : $(shell find ./res -type f) app-config.sh ./src/package ./AndroidManifest.xml ./android-sdk/installed
	source app-config.sh; $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.buildtools.version.current)/aapt package \
	  -v -f -m  -S ./res -J ./src -M ./AndroidManifest.xml \
	  -I $${ANDROID_SDK_ROOT}/$$(tr ';' '/' < android-sdk/.installed.platforms.version.current)/android.jar

# install the necessary android sdks
./android-sdk/installed: app-config.sh
	./.Makefile.scripts/make--android-sdk.sh

# generate the AndroidManifest.xml
./AndroidManifest.xml: app-config.sh
	./.Makefile.scripts/make--AndroidManifest.xml

# recipe to make directories (if) needed
./result ./bin ./assets ./src/ ./obj:
	mkdir -p "$@"

# make symlinksa and directories (to cater for the "helpful" java thing, to use folders for package names and yes we need a package name :( )
./src/package: app-config.sh
	set -x; source app-config.sh; PKGDIR=$$(echo "$$APP_PACKAGE" | tr '.' '/'); mkdir -p src/$$PKGDIR; rm -rf $@ ; ln -sfrv src/$$PKGDIR $@

./obj/package: app-config.sh
	source app-config.sh; PKGDIR=$$(echo "$$APP_PACKAGE" | tr '.' '/'); mkdir -p obj/$$PKGDIR; rm -rf $@; ln -sfrv obj/$$PKGDIR $@

app-config.sh: 
	./.Makefile.scripts/make--app-config.sh

FORCE:
	@true