#!/usr/bin/env make -f
DIST_DIRECTORY = ./dist
DIST_EXENAME = ai-agent-web
BUILDINFO_CLASS = codelab/ai-agent/internal/conf
BUILDINFO_VERSION := $(shell git describe --tags 2>/dev/null || echo "git/$(shell git rev-parse --short HEAD 2>/dev/null || echo 'none')")
CROSS_BUILD_TRIPLES = 	darwin/amd64 \
						darwin/arm64 \
						windows/386 \
						windows/amd64 \
						windows/arm64 \
						linux/386 \
						linux/amd64 \
						linux/arm64 \
						linux/loong64 \
						linux/mips \
						linux/mips64 \
						linux/mips64le \
						linux/mipsle \
						linux/riscv64 \
						freebsd/386 \
						freebsd/amd64 \
						freebsd/arm64 \
						freebsd/riscv64
LDFLAGS = -s -w
LDFLAGS += -X "$(BUILDINFO_CLASS).BuildVersion=$(BUILDINFO_VERSION)"
LDFLAGS += -X "$(BUILDINFO_CLASS).BuildTime=$(shell date '+%Y-%m-%d %H:%M:%S %Z')"
LDFLAGS += -X "$(BUILDINFO_CLASS).BuildMode=release"


.PHONY: build_debug
build_debug: LDFLAGS =
build_debug: build


.PHONY: build
build: clean install
	CGO_ENABLED=0 go build -ldflags '$(LDFLAGS)' -o $(DIST_DIRECTORY)/$(DIST_EXENAME)


.PHONY: install
install:
	go get


.PHONY: clean
clean:
	rm -rvf $(DIST_DIRECTORY)


.PHONY: all $(CROSS_BUILD_TRIPLES)
all: clean install $(CROSS_BUILD_TRIPLES)
$(CROSS_BUILD_TRIPLES): GOOS = $(word 1,$(subst /, ,$@))
$(CROSS_BUILD_TRIPLES): GOARCH = $(word 2,$(subst /, ,$@))
$(CROSS_BUILD_TRIPLES): CROSS_DIST_DIRECTORY = $(DIST_DIRECTORY)/release/$@
$(CROSS_BUILD_TRIPLES): CROSS_DIST_EXENAME = $(DIST_EXENAME)$(if $(filter $(GOOS),windows),.exe,)
$(CROSS_BUILD_TRIPLES): CROSS_DIST_ARCNAME = $(DIST_EXENAME)-$(subst /,.,$(BUILDINFO_VERSION)-$(GOOS)-$(GOARCH)).$(if $(filter $(GOOS),windows),zip,tar.gz)
$(CROSS_BUILD_TRIPLES):
	$(MAKE) build GOOS=$(GOOS) GOARCH=$(GOARCH) \
		DIST_DIRECTORY=$(CROSS_DIST_DIRECTORY)/bin \
		DIST_EXENAME=$(CROSS_DIST_EXENAME) && \
	if [ "$(GOOS)" = "windows" ]; then \
		zip -j    $(CROSS_DIST_DIRECTORY)/$(CROSS_DIST_ARCNAME)    $(CROSS_DIST_DIRECTORY)/bin/$(CROSS_DIST_EXENAME); \
	else \
		tar -cvzf $(CROSS_DIST_DIRECTORY)/$(CROSS_DIST_ARCNAME) -C $(CROSS_DIST_DIRECTORY)/bin $(CROSS_DIST_EXENAME); \
	fi && \
	sh -c "cd $(CROSS_DIST_DIRECTORY) && sha256sum $(CROSS_DIST_ARCNAME) > $(CROSS_DIST_ARCNAME).sha256sum";