.PHONY: build clean test install run fmt lint help

# Variables
BINARY_NAME=go-doc
BUILD_DIR=bin
MAIN_PATH=./cmd/go-doc
VERSION?=1.0.0
COMMIT=$(shell git rev-parse --short HEAD 2>/dev/null || echo "dev")
BUILD_DATE=$(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
LDFLAGS=-ldflags "-X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(BUILD_DATE)"

help: ## Display this help screen
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'

build: ## Build the binary
	@echo "Building $(BINARY_NAME)..."
	@mkdir -p $(BUILD_DIR)
	@go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME) $(MAIN_PATH)
	@echo "✅ Build complete: $(BUILD_DIR)/$(BINARY_NAME)"

clean: ## Remove build artifacts
	@echo "Cleaning..."
	@rm -rf $(BUILD_DIR)
	@rm -rf example/test_output
	@echo "✅ Clean complete"

test: ## Run tests
	@echo "Running tests..."
	@go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
	@echo "✅ Tests complete"

install: ## Install the binary to $GOPATH/bin
	@echo "Installing $(BINARY_NAME)..."
	@go install $(LDFLAGS) $(MAIN_PATH)
	@echo "✅ Install complete"

run: build ## Build and run with example API file
	@echo "Running $(BINARY_NAME)..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example_cn.api -d example/test_output -f example -s openapi3.0
	@echo "✅ Generated: example/test_output/gateway.json"

fmt: ## Format code
	@echo "Formatting code..."
	@gofmt -s -w .
	@goimports -w .
	@echo "✅ Format complete"

lint: ## Run linters
	@echo "Running linters..."
	@golangci-lint run || (echo "golangci-lint not found, skipping..." && exit 0)
	@echo "✅ Lint complete"

deps: ## Download dependencies
	@echo "Downloading dependencies..."
	@go mod download
	@go mod tidy
	@echo "✅ Dependencies updated"

# Build for multiple platforms
build-all: ## Build for all platforms
	@echo "Building for all platforms..."
	@mkdir -p $(BUILD_DIR)
	GOOS=linux GOARCH=amd64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-linux-amd64 $(MAIN_PATH)
	GOOS=linux GOARCH=arm64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-linux-arm64 $(MAIN_PATH)
	GOOS=darwin GOARCH=amd64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-darwin-amd64 $(MAIN_PATH)
	GOOS=darwin GOARCH=arm64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-darwin-arm64 $(MAIN_PATH)
	GOOS=windows GOARCH=amd64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-windows-amd64.exe $(MAIN_PATH)
	@echo "✅ Multi-platform build complete"

example: build ## Generate example swagger and openapi files
	@echo "Generating examples..."
	@mkdir -p example/test_output
	@echo "  - Swagger 2.0 (JSON)..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example.api -d example/test_output -f example_swagger2
	@echo "  - Swagger 2.0 (YAML)..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example.api -d example/test_output -f example_swagger2 -y
	@echo "  - OpenAPI 3.0 (JSON)..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example.api -d example/test_output -f example_openapi3 -s openapi3.0
	@echo "  - OpenAPI 3.0 (YAML)..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example.api -d example/test_output -f example_openapi3 -s openapi3.0 -y
	@echo "  - Chinese Swagger 2.0..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example_cn.api -d example/test_output -f example_cn_swagger2
	@echo "  - Chinese OpenAPI 3.0..."
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/example_cn.api -d example/test_output -f example_cn_openapi3 -s openapi3.0
	@echo "✅ Examples generated in example/test_output/"

gen-gateway: build ## Generate Gateway API documentation (OpenAPI 3.0)
	@echo "Generating Gateway API documentation..."
	@mkdir -p example/test_output
	@$(BUILD_DIR)/$(BINARY_NAME) -a example/api/gateway.api -d example/test_output -f gateway -s openapi3.0
	@echo "✅ Generated: example/test_output/gateway.json"
	@echo ""
	@echo "📊 驗證結果:"
	@echo "  - Total endpoints: $$(jq '.paths | length' example/test_output/gateway.json)"
	@echo "  - Total schemas: $$(jq '.components.schemas // {} | length' example/test_output/gateway.json 2>/dev/null || echo '0')"