SHELL := /bin/bash

ROOT     := $(abspath .)
VENDOR   := $(ROOT)/third_party/libghostty-vt
SOURCE   := $(VENDOR)/source
INSTALL  := $(VENDOR)/install
COMMIT   := $(shell cat $(VENDOR)/COMMIT)

.PHONY: deps deps-fetch deps-build clean-deps spike patterm test

# `make deps` fetches and builds libghostty-vt at the pinned commit.
# Re-runs are idempotent on success; touch $(VENDOR)/COMMIT to force a rebuild.
deps: $(INSTALL)/lib/libghostty-vt.a

$(SOURCE)/.git/HEAD:
	@echo ">> cloning ghostty-org/ghostty @ $(COMMIT)"
	@rm -rf $(SOURCE)
	@git clone --filter=blob:none https://github.com/ghostty-org/ghostty.git $(SOURCE)
	@cd $(SOURCE) && git checkout --detach $(COMMIT)

deps-fetch: $(SOURCE)/.git/HEAD

$(INSTALL)/lib/libghostty-vt.a: $(SOURCE)/.git/HEAD
	@command -v zig >/dev/null || { echo "ERROR: zig not on PATH (need >=0.15.2 to build libghostty-vt)"; exit 1; }
	@echo ">> building libghostty-vt with zig"
	@cd $(SOURCE) && zig build -Demit-lib-vt --prefix $(INSTALL)
	@test -f $(INSTALL)/lib/libghostty-vt.a || { echo "ERROR: expected static lib at $(INSTALL)/lib/libghostty-vt.a"; exit 1; }
	@echo ">> libghostty-vt installed under $(INSTALL)"

deps-build: $(INSTALL)/lib/libghostty-vt.a

clean-deps:
	rm -rf $(SOURCE) $(INSTALL)

VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)

spike: deps
	go build -o ./bin/spike ./cmd/spike

patterm: deps
	go build -ldflags "-X main.version=$(VERSION)" -o ./bin/patterm ./cmd/patterm

test: deps
	go test ./...