# Builds the Android app (android/) and packages a versioned release APK.
# The OCR pipeline itself (tooling-container/, 0-3_*.sh, test_batch.sh) is
# container-only and has no host build step, so this Makefile only covers
# the Android app.

ANDROID_DIR := android
ANDROID_APK := $(ANDROID_DIR)/app/build/outputs/apk/debug/app-debug.apk
DIST_DIR    := dist

.PHONY: all android clean

all: android

# Builds the Android app (`./gradlew assembleDebug` in android/, via its
# own Gradle/AGP toolchain) and copies the resulting debug APK into
# dist/, named with the current git tag, or `make android VERSION=1.2.3`
# to override. Untagged builds (including every CI build, unless a
# release tag is pushed) get a 0.0.0-dev+<sha> placeholder version.
# Ships the auto-generated debug keystore, not a release signing config -
# fine for sideloading; a real release signing setup is a separate,
# not-yet-needed step. Requires the Android SDK (ANDROID_HOME set) - see
# build-image/Dockerfile for the exact version this is built/tested
# against, or run this inside it via ./run-image.sh.
android:
	cd $(ANDROID_DIR) && ./gradlew assembleDebug
	@mkdir -p $(DIST_DIR)
	@V="$(VERSION)"; \
	if [ -z "$$V" ]; then \
		if TAG=$$(git describe --tags --exact-match --match 'v[0-9]*.[0-9]*.[0-9]*' 2>/dev/null); then \
			V=$${TAG#v}; \
		else \
			V="0.0.0-dev+$$(git rev-parse --short HEAD)"; \
			echo "WARNING: HEAD is not on a vX.Y.Z tag - building placeholder version $$V (push a tag to drive a real release version)" >&2; \
		fi; \
	fi; \
	case "$$V" in \
		[0-9]*.[0-9]*.[0-9]*) ;; \
		*) echo "PREFLIGHT FAIL: VERSION '$$V' is not a semantic version (expected X.Y.Z, optionally with a -pre+meta suffix)" >&2; exit 1;; \
	esac; \
	APK_NAME="fuelish-$$V.apk"; \
	cp $(ANDROID_APK) "$(DIST_DIR)/$$APK_NAME"; \
	echo "Wrote $(DIST_DIR)/$$APK_NAME"

clean:
	rm -rf $(DIST_DIR) $(ANDROID_DIR)/build $(ANDROID_DIR)/app/build