Makefile

.PHONY: generate specs aar-specs jni java clean lint test test-tools build prove examples aar-resolve

# JDK detection for host tests (jni.h and libjvm.so).
JDK_HOME ?= $(shell readlink -f $$(which javac) 2>/dev/null | sed 's|/bin/javac$$||')
JNI_INCLUDE ?= $(JDK_HOME)/include
LIBJVM_DIR ?= $(shell find $(JDK_HOME) -name libjvm.so -printf '%h' -quit 2>/dev/null)

# Android SDK platform JAR for specgen.
ANDROID_JAR ?= $(ANDROID_HOME)/platforms/android-36/android.jar

# Run all generators (proto/grpc/cli generation moved to jni-proxy repo)
generate: specs jni java

# Run specgen — generates YAML specs from ref/ .class files
specs:
	go run ./tools/cmd/specgen/ -ref ref -classpath $(ANDROID_JAR) -output spec/java/ -go-module github.com/AndroidGoLab/jni

# Generate YAML specs for AndroidX/Material classes from the cycle 2 AAR
# closure produced by `make aar-resolve` and extracted by lock-paths.
# Requires .aar-cache/lock.json plus the .aar-cache/extracted/ tree.
# Tradeoff: `make specs` does not pass -jars-dir, so re-running it after
# `make aar-specs` may regenerate without the AAR-sourced classes; treat
# `make aar-specs` as the superset target until the two are unified.
aar-specs:
	go run ./tools/cmd/specgen/ \
		-ref ref \
		-jars-dir .aar-cache/extracted \
		-classpath $(ANDROID_JAR) \
		-output spec/java/ \
		-go-module github.com/AndroidGoLab/jni

# Run jnigen only — generates capi/ and root package idiomatic files
jni:
	go run ./tools/cmd/jnigen/ -spec spec/jni.yaml -overlay spec/overlays/jni.yaml -templates templates/jni/ -output .

# Run javagen only — generates high-level Android API packages
java:
	go run ./tools/cmd/javagen/ -specs spec/java/ -overlays spec/overlays/java/ -templates templates/java/ -output . -go-module github.com/AndroidGoLab/jni

# Remove all generated files (identified by "DO NOT EDIT" header), excluding tools/
clean:
	grep -rl "Code generated by jnigen\. DO NOT EDIT\." --include="*.go" --exclude-dir=tools . | xargs -r rm -f
	grep -rl "Code generated by javagen\. DO NOT EDIT\." --include="*.go" --exclude-dir=tools . | xargs -r rm -f
	find . -path '*/consts' -type d -empty -not -path './tools/*' -delete 2>/dev/null || true
	rm -f capi/cgo_vtable_dispatch.h

# Run golangci-lint
lint:
	golangci-lint run ./...

# Run all tests (requires JDK for jni.h)
test:
	@if [ -z "$(JDK_HOME)" ] || [ ! -d "$(JNI_INCLUDE)" ]; then \
		echo "Error: JDK not found. Install a JDK or set JDK_HOME."; \
		exit 1; \
	fi
	C_INCLUDE_PATH="$(JNI_INCLUDE):$(JNI_INCLUDE)/linux" \
	LD_LIBRARY_PATH="$(LIBJVM_DIR)" \
	go test ./...

# Run only tool tests (no JDK needed)
test-tools:
	go test ./tools/...

# Resolve the Material 3 AAR/JAR closure (Cycle 2 of material3-widget-bindings).
# Top-level coordinates: appcompat 1.7.0 + material 1.12.0 + recyclerview 1.3.2
# + constraintlayout 2.1.4. Output: .aar-cache/lock.json plus a SHA-256 verified
# cache under .aar-cache/.
aar-resolve:
	go run ./tools/cmd/aar-resolve \
		--top androidx.appcompat:appcompat:1.7.0 \
		--top com.google.android.material:material:1.12.0 \
		--top androidx.recyclerview:recyclerview:1.3.2 \
		--top androidx.constraintlayout:constraintlayout:2.1.4 \
		--top androidx.drawerlayout:drawerlayout:1.1.1 \
		--cache .aar-cache \
		--lock .aar-cache/lock.json \
		--max-concurrency 8

# Verify Lean proofs (requires elan/lake)
prove:
	@command -v lake >/dev/null 2>&1 || { echo "lake not found. Install elan: https://github.com/leanprover/elan"; exit 1; }
	cd proofs && lake build

# Build all example APKs (requires Android SDK + NDK)
EXAMPLE_DIRS := $(sort $(dir $(wildcard examples/*/Makefile)))
examples:
	@failed=""; \
	for d in $(EXAMPLE_DIRS); do \
		name=$$(basename $$d); \
		printf "  %-20s" "$$name"; \
		if $(MAKE) -C $$d build >/dev/null 2>&1; then \
			echo "OK"; \
		else \
			echo "FAIL"; \
			failed="$$failed $$name"; \
		fi; \
	done; \
	if [ -n "$$failed" ]; then \
		echo "Failed:$$failed"; \
		exit 1; \
	fi; \
	echo "All examples built."

# Cross-compile libraries for android/arm64 (requires NDK toolchain)
build:
	CGO_ENABLED=1 \
	GOOS=android \
	GOARCH=arm64 \
	CC=$(shell echo $$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang) \
	go build ./...