APP_NAME := ops-assistant
VERSION_FILE := VERSION
VERSION ?= $(shell cat $(VERSION_FILE) 2>/dev/null || echo "0.1.0")
GIT_COMMIT := $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
BUILD_TIME := $(shell date -u '+%Y-%m-%dT%H:%M:%SZ')
LDFLAGS := -X ops-assistant/version.Version=$(VERSION) \
           -X ops-assistant/version.GitCommit=$(GIT_COMMIT) \
           -X ops-assistant/version.BuildTime=$(BUILD_TIME)

DOCKER_IMAGE := ouaone/ops-assistant
DOCKER_TAG := $(VERSION)
RELEASE_TAG := v$(VERSION)
DIST_DIR := dist
ASSET_NAME := $(APP_NAME)-$(RELEASE_TAG)-linux-amd64

.PHONY: build clean run docker docker-push release help version show-version set-version bump-patch bump-minor bump-major release-plan package-release tag-release release-check

## build: 编译二进制文件
build:
	go build -ldflags "$(LDFLAGS)" -o $(APP_NAME) cmd/main.go

## build-linux: 交叉编译 Linux amd64
build-linux:
	CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -ldflags "$(LDFLAGS)" -o $(APP_NAME)-linux-amd64 cmd/main.go

## clean: 清理编译产物
clean:
	rm -f $(APP_NAME) $(APP_NAME)-linux-amd64

## run: 编译并运行
run: build
	./$(APP_NAME)

## docker: 构建 Docker 镜像
docker:
	docker build -t $(DOCKER_IMAGE):$(DOCKER_TAG) -t $(DOCKER_IMAGE):latest \
		--build-arg VERSION=$(VERSION) \
		--build-arg GIT_COMMIT=$(GIT_COMMIT) \
		--build-arg BUILD_TIME=$(BUILD_TIME) .

## docker-push: 推送 Docker 镜像
docker-push:
	docker push $(DOCKER_IMAGE):$(DOCKER_TAG)
	docker push $(DOCKER_IMAGE):latest

## show-version: 显示语义化版本（vx.y.z）
show-version:
	@echo "v$(VERSION)"

## version: 显示版本信息
version:
	@echo "$(APP_NAME) v$(VERSION) ($(GIT_COMMIT))"

## set-version: 设置版本号（示例: make set-version VERSION=1.2.3）
set-version:
	@echo "$(VERSION)" > $(VERSION_FILE)
	@echo "✅ version set to v$(VERSION)"

## bump-patch: 补丁版本 +1（x.y.z -> x.y.z+1）
bump-patch:
	@python3 -c 'from pathlib import Path;p=Path("VERSION");s=p.read_text().strip() if p.exists() else "0.1.0";a,b,c=[int(x) for x in s.split(".")[:3]];n=f"{a}.{b}.{c+1}";p.write_text(n+"\n");print(f"✅ bump patch: v{s} -> v{n}")'

## bump-minor: 次版本 +1（x.y.z -> x.y+1.0）
bump-minor:
	@python3 -c 'from pathlib import Path;p=Path("VERSION");s=p.read_text().strip() if p.exists() else "0.1.0";a,b,c=[int(x) for x in s.split(".")[:3]];n=f"{a}.{b+1}.0";p.write_text(n+"\n");print(f"✅ bump minor: v{s} -> v{n}")'

## bump-major: 主版本 +1（x.y.z -> x+1.0.0）
bump-major:
	@python3 -c 'from pathlib import Path;p=Path("VERSION");s=p.read_text().strip() if p.exists() else "0.1.0";a,b,c=[int(x) for x in s.split(".")[:3]];n=f"{a+1}.0.0";p.write_text(n+"\n");print(f"✅ bump major: v{s} -> v{n}")'

## release-plan: 显示发布参数预览
release-plan:
	@echo "APP_NAME=$(APP_NAME)"
	@echo "VERSION=$(VERSION)"
	@echo "RELEASE_TAG=$(RELEASE_TAG)"
	@echo "DOCKER_IMAGE=$(DOCKER_IMAGE)"
	@echo "DOCKER_TAG=$(DOCKER_TAG)"
	@echo "ASSET=$(DIST_DIR)/$(ASSET_NAME)"

## release-check: 发布前基础检查（工作区、版本格式）
release-check:
	@test -z "$$(git status --porcelain)" || (echo "❌ git 工作区不干净，请先提交" && exit 1)
	@echo "$(VERSION)" | grep -Eq '^[0-9]+\.[0-9]+\.[0-9]+$$' || (echo "❌ VERSION 格式必须是 x.y.z" && exit 1)
	@echo "✅ release-check passed (v$(VERSION))"

## package-release: 产出发布二进制与 sha256
package-release:
	@mkdir -p $(DIST_DIR)
	@CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -ldflags "$(LDFLAGS)" -o $(DIST_DIR)/$(ASSET_NAME) cmd/main.go
	@sha256sum $(DIST_DIR)/$(ASSET_NAME) > $(DIST_DIR)/$(ASSET_NAME).sha256
	@echo "✅ package ready: $(DIST_DIR)/$(ASSET_NAME)"

## tag-release: 创建并推送 git tag（vX.Y.Z）
tag-release:
	@git rev-parse -q --verify refs/tags/$(RELEASE_TAG) >/dev/null && (echo "❌ tag exists: $(RELEASE_TAG)" && exit 1) || true
	@git tag -a $(RELEASE_TAG) -m "release: $(RELEASE_TAG)"
	@git push origin $(RELEASE_TAG)
	@echo "✅ pushed tag $(RELEASE_TAG)"

## release: 本地发布编排（check + build + docker + package）
release: release-check build docker package-release
	@echo "✅ release local artifacts ready for $(RELEASE_TAG)"
	@echo "   next: make docker-push && make tag-release"

## help: 显示帮助
help:
	@echo "$(APP_NAME) v$(VERSION)"
	@echo ""
	@echo "可用目标："
	@grep -E '^## ' Makefile | sed 's/^## /  /'