.PHONY: help build build-release frontend backend android install-android-app run migrate reconcile reconcile-delete tidy test testdata clean

# Default goal: print the list of available targets.
.DEFAULT_GOAL := help

# Android SDK location. Override when the SDK lives elsewhere.
ANDROID_SDK ?= $(HOME)/Android/sdk

# adb from the Android SDK's platform-tools (matches the SDK we build against).
ADB ?= $(ANDROID_SDK)/platform-tools/adb

# Device serial for `install-android-app` (falls back to $ANDROID_SERIAL). When
# empty, the sole connected device is used; with several connected devices the
# target lists them and stops instead of guessing. Override with SERIAL=<serial>.
SERIAL ?= $(ANDROID_SERIAL)

# Release version stamped into the binary (-X main.version). Override with VERSION=...
VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)

# Seed testdata parameters (see `make testdata`). Counts: ALBUMS, PHOTOS, SEED, TIMEOUT.
# Boolean (set to 1 to enable): TAGS, COMMENTS, LIKES, SHARE, INVITES, WAIT, DRY, VIDEO.
# VIDEO requires ffmpeg on PATH; it is skipped without it. Extra passthrough flags: ARGS.
ALBUMS ?= 2
PHOTOS ?= 10
SEED ?= 0
TIMEOUT ?= 30

# Print the list of available targets.
help:
	@echo "Usage: make <target>"
	@echo
	@echo "Available targets:"
	@grep -hE '^[a-zA-Z0-9_-]+:' $(MAKEFILE_LIST) | cut -d: -f1 | sed 's/^/  /'

# Frontend sources whose changes must trigger a rebuild. `backend/static/index.html`
# doubles as the build stamp, so a clean clone or `make clean` (which empties
# backend/static) forces the next build to regenerate.
FRONTEND_OUT := backend/static/index.html

# `npm ci` is only needed when the manifest/lockfile change.
FRONTEND_DEPS_STAMP := frontend/node_modules/.install-stamp

# Build the SvelteKit bundle and copy it into backend/static (embedded via
# go:embed). Incremental: recompile only when frontend sources are newer than the
# embedded bundle. Paths are checked from the recipe (not as make prerequisites)
# because SvelteKit route names like `(app)` break make's filename parsing.
frontend:
	@set -e; \
	if [ ! -f $(FRONTEND_DEPS_STAMP) ] \
		|| [ frontend/package.json -nt $(FRONTEND_DEPS_STAMP) ] \
		|| [ frontend/package-lock.json -nt $(FRONTEND_DEPS_STAMP) ]; then \
		echo '> cd frontend && npm ci'; \
		cd frontend && npm ci; \
		touch node_modules/.install-stamp; \
		cd ..; \
	fi; \
	if [ ! -f $(FRONTEND_OUT) ] \
		|| [ -n "$$(find frontend/src frontend/static -newer $(FRONTEND_OUT) -print -quit)" ] \
		|| [ frontend/package.json -nt $(FRONTEND_OUT) ] \
		|| [ frontend/package-lock.json -nt $(FRONTEND_OUT) ] \
		|| [ frontend/svelte.config.js -nt $(FRONTEND_OUT) ] \
		|| [ frontend/vite.config.ts -nt $(FRONTEND_OUT) ] \
		|| [ frontend/tailwind.config.ts -nt $(FRONTEND_OUT) ] \
		|| [ frontend/tsconfig.json -nt $(FRONTEND_OUT) ]; then \
		echo '> cd frontend && npm run build'; \
		cd frontend && npm run build; \
		cd ..; \
		rm -rf backend/static/*; \
		cp -r frontend/build/* backend/static/; \
	else \
		echo 'frontend: up to date'; \
	fi

backend:
	mkdir -p bin
	# -tags nodynamic forces gen2brain/webp to use its pure-Go transpiled path
	# (no purego/dlopen), keeping the binary fully static.
	cd backend && CGO_ENABLED=0 go build -tags nodynamic -trimpath -ldflags="-s -w" \
		-o ../bin/galo ./cmd/server

build: frontend backend

# Android client (independent of the server build). Requires the Android SDK.
android:
	cd android && ANDROID_HOME=$(ANDROID_SDK) ./gradlew :app:assembleDebug

# Install the debug Android client on a connected device. Builds the APK via the
# `android` target first; only devices in the `device` state are considered.
install-android-app: android
	@devices="$$($(ADB) devices | awk 'NR>1 && $$2 == "device" {print $$1}')"; \
	if [ -n "$(SERIAL)" ]; then \
		target="$(SERIAL)"; \
	else \
		count=$$(printf '%s\n' "$$devices" | grep -c .); \
		if [ "$$count" -eq 0 ]; then \
			echo "install-android-app: no connected device (see '$(ADB) devices')" >&2; \
			exit 1; \
		elif [ "$$count" -gt 1 ]; then \
			echo "install-android-app: several devices connected; set SERIAL=<serial>:" >&2; \
			printf '%s\n' "$$devices" | sed 's/^/  /' >&2; \
			exit 1; \
		else \
			target="$$devices"; \
		fi; \
	fi; \
	echo "Installing app-debug.apk on $$target"; \
	$(ADB) -s "$$target" install -r android/app/build/outputs/apk/debug/app-debug.apk

# Release build: full static, stripped and (if available) UPX-compressed binary
# with the version embedded. Produces bin/galo and a copy at bin/galo-$(VERSION).
build-release: frontend
	mkdir -p bin
	cd backend && CGO_ENABLED=0 go build -tags nodynamic -trimpath \
		-ldflags="-s -w -X main.version=$(VERSION)" -o ../bin/galo ./cmd/server
	strip --strip-all bin/galo
	@if command -v upx >/dev/null 2>&1; then \
		upx --best --quiet bin/galo && echo "upx: bin/galo compressed"; \
	else \
		echo "upx not found - skipping compression (install upx-ucl to enable)"; \
	fi
	cp bin/galo bin/galo-$(VERSION)
	@echo "release: bin/galo-$(VERSION)"

run: frontend backend
	./bin/galo

migrate:
	cd backend && go run ./cmd/migrate

# Reconcile object storage against the metadata journal (report only).
reconcile:
	cd backend && go run ./cmd/reconcile

# Reconcile and delete orphaned blobs older than --min-age (default 1h).
# Override the grace period when needed: make reconcile-delete MIN_AGE=1m
reconcile-delete:
	cd backend && go run ./cmd/reconcile --delete $(if $(MIN_AGE),--min-age $(MIN_AGE),)

tidy:
	cd backend && go mod tidy

test:
	cd backend && go test ./...

# Seed test data into a running instance through the public API (additive only).
# Credentials come from the environment: GALO_EMAIL, GALO_PASSWORD
# (optional GALO_BASE_URL). Example:
#   make testdata ALBUMS=3 PHOTOS=5 TAGS=1 LIKES=1 SEED=42
testdata:
	@python3 scripts/seed.py \
		--albums $(ALBUMS) \
		--photos-per-album $(PHOTOS) \
		--seed $(SEED) \
		--timeout $(TIMEOUT) \
		$(if $(filter 1,$(TAGS)),--tags,) \
		$(if $(filter 1,$(COMMENTS)),--comments,) \
		$(if $(filter 1,$(LIKES)),--likes,) \
		$(if $(filter 1,$(SHARE)),--share-links,) \
		$(if $(filter 1,$(INVITES)),--invites,) \
		$(if $(filter 1,$(VIDEO)),--video,) \
		$(if $(filter 1,$(WAIT)),--wait-variants,) \
		$(if $(filter 1,$(DRY)),--dry-run,) \
		$(ARGS)

clean:
	rm -rf bin backend/static/*
	touch backend/static/.gitkeep