.PHONY: help up down logs status rebuild clean psql logs-backend logs-gateway logs-mail build-engine stop-engines prune-broken-engines wait

.DEFAULT_GOAL := help

COMPOSE := docker compose
REPO_ROOT := $(realpath $(CURDIR)/../..)
ENGINE_IMAGE := galaxy-engine:local-dev
# Engine containers spawned by backend's runtime fall outside the
# compose project. We identify them by two labels:
#   STACK_LABEL  — backend stamps this on every engine it spawns from
#                  this stack (see BACKEND_STACK_LABEL env in the
#                  compose file);
#   ENGINE_LABEL — image-level OCI title baked into the engine
#                  Dockerfile.
# Both filters together select exactly this stack's engine containers
# and never compose-managed services or unrelated workloads.
STACK_LABEL := galaxy.stack=local-dev
ENGINE_LABEL := org.opencontainers.image.title=galaxy-game-engine

help:
	@echo "Local development stack for the Galaxy UI:"
	@echo "  make up             Build (if needed) and bring up the stack, wait until healthy"
	@echo "  make down           Stop compose containers, leave engines + volumes intact"
	@echo "  make rebuild        Force rebuild of backend / gateway images and bring up"
	@echo "  make build-engine   Build the engine image $(ENGINE_IMAGE) used by the dev sandbox"
	@echo "  make stop-engines   Stop and remove only the per-game engine containers"
	@echo "  make prune-broken-engines  Remove non-running engine containers Docker can't heal (run inside 'up')"
	@echo "  make clean          Stop everything (incl. engines) and wipe volumes + game state"
	@echo "  make logs           Tail all logs"
	@echo "  make logs-backend   Tail only the backend logs"
	@echo "  make logs-gateway   Tail only the gateway logs"
	@echo "  make logs-mail      Tail only the mailpit logs"
	@echo "  make status         docker compose ps"
	@echo "  make psql           Open a psql shell as galaxy@galaxy_backend"
	@echo ""
	@echo "After 'make up', point the UI at the stack with:"
	@echo "  pnpm -C ui/frontend dev"
	@echo "and open http://localhost:5173 (UI) plus http://localhost:8025 (Mailpit)."
	@echo ""
	@echo "Default login for the auto-provisioned dev sandbox: dev@local.test"
	@echo "(see BACKEND_DEV_SANDBOX_EMAIL in .env). Login code: 123456."

up: build-engine prune-broken-engines
	$(COMPOSE) up -d --wait

rebuild: build-engine prune-broken-engines
	$(COMPOSE) build --no-cache backend gateway
	$(COMPOSE) up -d --wait

build-engine:
	@if docker image inspect $(ENGINE_IMAGE) >/dev/null 2>&1; then \
		echo "$(ENGINE_IMAGE) already built; skipping (use 'docker rmi $(ENGINE_IMAGE)' to force a rebuild)."; \
	else \
		echo "building $(ENGINE_IMAGE)…"; \
		docker build -t $(ENGINE_IMAGE) -f $(REPO_ROOT)/game/Dockerfile $(REPO_ROOT); \
	fi

down:
	$(COMPOSE) down

clean: stop-engines
	$(COMPOSE) down -v
	@if [ -d /tmp/galaxy-game-state ]; then \
		echo "wiping /tmp/galaxy-game-state…"; \
		docker run --rm -v /tmp/galaxy-game-state:/state alpine sh -c 'rm -rf /state/*' 2>/dev/null || rm -rf /tmp/galaxy-game-state/* 2>/dev/null || true; \
	fi

# Spawned engine containers run outside the compose project (the
# backend's runtime creates them on demand). They intentionally
# survive `make down` so the runtime reconciler can reattach on the
# next `make up` — killing them out of band makes the runtime
# cascade the game to `cancelled`. We only remove them as part of
# `clean`, where the whole DB is wiped anyway.
stop-engines:
	@ids=$$(docker ps -aq \
		--filter "label=$(STACK_LABEL)" \
		--filter "label=$(ENGINE_LABEL)"); \
	if [ -n "$$ids" ]; then \
		echo "stopping engine containers for $(STACK_LABEL)…"; \
		docker rm -f $$ids >/dev/null; \
	fi

# Remove engine containers Docker can no longer heal on its own.
# After a host reboot, the per-game bind-mount source under
# /tmp/galaxy-game-state/<uuid> may have been wiped (macOS clears
# /private/tmp on reboot), so `restart: unless-stopped` cannot
# revive the container — Docker refuses to start it with a missing
# bind-mount source and leaves it stuck in `exited` / `created`
# state. This target prunes the husks before `compose up`; the
# backend's pre-bootstrap reconciler tick (`backend/cmd/backend/main.go`)
# then cascades the orphan runtime row to `removed`, the lobby
# cancels the game, and the dev-sandbox bootstrap purges the
# cancelled tile and provisions a fresh sandbox in the same
# `make up` cycle. Healthy `running` / `restarting` containers are
# left intact so a long-lived sandbox survives normal up/down
# cycles.
prune-broken-engines:
	@ids=""; \
	for cid in $$(docker ps -aq \
			--filter "label=$(STACK_LABEL)" \
			--filter "label=$(ENGINE_LABEL)" 2>/dev/null); do \
		state=$$(docker inspect -f '{{.State.Status}}' $$cid 2>/dev/null); \
		case "$$state" in \
			running|restarting) ;; \
			*) ids="$$ids $$cid";; \
		esac; \
	done; \
	if [ -n "$$ids" ]; then \
		echo "removing non-running engine containers (post-reboot cleanup):$$ids"; \
		docker rm -f $$ids >/dev/null; \
	fi

logs:
	$(COMPOSE) logs -f --tail=100

logs-backend:
	$(COMPOSE) logs -f --tail=200 backend

logs-gateway:
	$(COMPOSE) logs -f --tail=200 gateway

logs-mail:
	$(COMPOSE) logs -f --tail=200 mailpit

status:
	$(COMPOSE) ps

psql:
	$(COMPOSE) exec postgres psql -U galaxy -d galaxy_backend
