.PHONY: build clean test vet staticcheck fmt install-tools all install uninstall version

# Binary name
BINARY=kportal

# Version management using semver-gen
# If semver-gen is available, use it; otherwise fallback to 0.1.0-dev
VERSION?=$(shell which semver-gen > /dev/null 2>&1 && semver-gen generate -l 2>/dev/null | sed 's/SEMVER //' || echo "0.1.0-dev")

# Build directory
BUILD_DIR=.

# Installation directories
PREFIX?=/usr/local
INSTALL_BIN_DIR=$(PREFIX)/bin

# Detect user's local bin directory
ifeq ($(shell uname), Darwin)
    # macOS - prefer Homebrew location if it exists, otherwise /usr/local
    USER_BIN_DIR=$(shell [ -d /opt/homebrew/bin ] && echo /opt/homebrew/bin || echo $(HOME)/.local/bin)
else ifeq ($(shell uname), Linux)
    # Linux - use ~/.local/bin (typically in PATH)
    USER_BIN_DIR=$(HOME)/.local/bin
else
    # Fallback
    USER_BIN_DIR=$(HOME)/bin
endif

# Go parameters
GOCMD=go
GOBUILD=$(GOCMD) build
GOCLEAN=$(GOCMD) clean
GOTEST=$(GOCMD) test
GOGET=$(GOCMD) get
GOVET=$(GOCMD) vet
GOFMT=$(GOCMD) fmt

# Build flags
BUILD_FLAGS=-buildvcs=false
LDFLAGS=-ldflags="-s -w -X main.version=$(VERSION)"

all: fmt vet staticcheck test build

build:
	@echo "Building $(BINARY)..."
	$(GOBUILD) $(BUILD_FLAGS) $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY) ./cmd/kportal
	@echo "Build complete: $(BUILD_DIR)/$(BINARY)"

clean:
	@echo "Cleaning..."
	$(GOCLEAN)
	rm -f $(BUILD_DIR)/$(BINARY)
	@echo "Clean complete"

test:
	@echo "Running tests..."
	$(GOTEST) -v -race -cover ./...
	@echo "Tests complete"

test-short:
	@echo "Running short tests..."
	$(GOTEST) -short ./...
	@echo "Short tests complete"

vet:
	@echo "Running go vet..."
	$(GOVET) ./...
	@echo "go vet passed"

fmt:
	@echo "Formatting code..."
	$(GOFMT) ./...
	@echo "Format complete"

staticcheck:
	@echo "Running staticcheck..."
	@which staticcheck > /dev/null || (echo "staticcheck not found. Run 'make install-tools' to install it" && exit 1)
	staticcheck ./...
	@echo "staticcheck passed"

install-tools:
	@echo "Installing development tools..."
	$(GOGET) honnef.co/go/tools/cmd/staticcheck@latest
	$(GOGET) github.com/vektra/mockery/v2@latest
	@echo "Installing semver-gen for version management..."
	@which semver-gen > /dev/null 2>&1 || \
		(curl -s https://api.github.com/repos/lukaszraczylo/semver-generator/releases/latest | \
		grep "browser_download_url.*$(shell uname -s | tr '[:upper:]' '[:lower:]').*$(shell uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/')" | \
		cut -d '"' -f 4 | \
		xargs curl -L -o /tmp/semver-gen && \
		chmod +x /tmp/semver-gen && \
		mv /tmp/semver-gen $(USER_BIN_DIR)/semver-gen)
	@echo "Tools installed"

run: build
	@echo "Running $(BINARY)..."
	./$(BINARY)

run-verbose: build
	@echo "Running $(BINARY) in verbose mode..."
	./$(BINARY) -v

version:
	@echo "Current version: $(VERSION)"
	@if which semver-gen > /dev/null 2>&1; then \
		echo "Version generated by semver-gen"; \
	else \
		echo "semver-gen not installed (using fallback version)"; \
		echo "Run 'make install-tools' to install semver-gen"; \
	fi

check: fmt vet staticcheck
	@echo "All checks passed"

install: build
	@echo "Installing $(BINARY)..."
	@mkdir -p $(USER_BIN_DIR)
	@install -m 755 $(BUILD_DIR)/$(BINARY) $(USER_BIN_DIR)/$(BINARY)
	@echo ""
	@echo "✅ $(BINARY) successfully installed to $(USER_BIN_DIR)/$(BINARY)"
	@echo ""
	@echo "Verify installation:"
	@echo "  $(USER_BIN_DIR)/$(BINARY) --help"
	@echo ""
	@if echo "$$PATH" | grep -q "$(USER_BIN_DIR)"; then \
		echo "✅ $(USER_BIN_DIR) is in your PATH"; \
		echo "You can now run: $(BINARY)"; \
	else \
		echo "⚠️  $(USER_BIN_DIR) is not in your PATH"; \
		echo "Add it to your PATH by adding this to your shell config:"; \
		echo "  export PATH=\"$(USER_BIN_DIR):\$$PATH\""; \
	fi
	@echo ""

install-system: build
	@echo "Installing $(BINARY) system-wide..."
	@if [ "$$(id -u)" -ne 0 ]; then \
		echo "System installation requires sudo privileges."; \
		sudo install -m 755 $(BUILD_DIR)/$(BINARY) $(INSTALL_BIN_DIR)/$(BINARY); \
	else \
		install -m 755 $(BUILD_DIR)/$(BINARY) $(INSTALL_BIN_DIR)/$(BINARY); \
	fi
	@echo ""
	@echo "✅ $(BINARY) successfully installed to $(INSTALL_BIN_DIR)/$(BINARY)"
	@echo "You can now run: $(BINARY)"
	@echo ""

uninstall:
	@echo "Uninstalling $(BINARY)..."
	@if [ -f "$(USER_BIN_DIR)/$(BINARY)" ]; then \
		rm -f $(USER_BIN_DIR)/$(BINARY); \
		echo "✅ Removed $(USER_BIN_DIR)/$(BINARY)"; \
	fi
	@if [ -f "$(INSTALL_BIN_DIR)/$(BINARY)" ]; then \
		if [ "$$(id -u)" -ne 0 ]; then \
			sudo rm -f $(INSTALL_BIN_DIR)/$(BINARY); \
		else \
			rm -f $(INSTALL_BIN_DIR)/$(BINARY); \
		fi; \
		echo "✅ Removed $(INSTALL_BIN_DIR)/$(BINARY)"; \
	fi
	@echo "Uninstall complete"

# Generate mocks
mocks:
	@echo "Generating mocks..."
	mockery --name=K8sClientInterface --dir=internal/k8s --output=internal/mocks
	mockery --name=ResourceResolver --dir=internal/k8s --output=internal/mocks
	mockery --name=PortForwarder --dir=internal/k8s --output=internal/mocks
	@echo "Mocks generated"

# Run integration tests
test-integration:
	@echo "Running integration tests..."
	$(GOTEST) -v ./test/integration/...
	@echo "Integration tests complete"

# Coverage report
coverage:
	@echo "Generating coverage report..."
	$(GOTEST) -coverprofile=coverage.out ./...
	$(GOCMD) tool cover -html=coverage.out -o coverage.html
	@echo "Coverage report generated: coverage.html"

# Show help
help:
	@echo "kportal - Kubernetes Port Forwarding Tool"
	@echo ""
	@echo "Available targets:"
	@echo ""
	@echo "Build & Install:"
	@echo "  build           - Build the binary in current directory"
	@echo "  install         - Install to user bin directory ($(USER_BIN_DIR))"
	@echo "  install-system  - Install system-wide ($(INSTALL_BIN_DIR), requires sudo)"
	@echo "  uninstall       - Remove installed binary from all locations"
	@echo "  clean           - Remove build artifacts"
	@echo ""
	@echo "Testing:"
	@echo "  test            - Run all tests with race detection and coverage"
	@echo "  test-short      - Run short tests only"
	@echo "  test-integration- Run integration tests"
	@echo "  coverage        - Generate coverage report"
	@echo ""
	@echo "Code Quality:"
	@echo "  fmt             - Format code with go fmt"
	@echo "  vet             - Run go vet"
	@echo "  staticcheck     - Run staticcheck"
	@echo "  check           - Run fmt, vet, and staticcheck"
	@echo "  all             - Run fmt, vet, staticcheck, test, and build"
	@echo ""
	@echo "Development:"
	@echo "  run             - Build and run the binary"
	@echo "  run-verbose     - Build and run with verbose logging"
	@echo "  version         - Display current version (from semver-gen or fallback)"
	@echo "  install-tools   - Install development tools (staticcheck, mockery, semver-gen)"
	@echo "  mocks           - Generate test mocks"
	@echo ""
	@echo "Variables:"
	@echo "  VERSION         - Set version (default: $(VERSION))"
	@echo "  PREFIX          - Installation prefix (default: $(PREFIX))"
	@echo ""
	@echo "Examples:"
	@echo "  make build              # Build binary"
	@echo "  make install            # Install for current user"
	@echo "  sudo make install-system # Install system-wide"
	@echo "  make VERSION=1.0.0 build # Build with custom version"