Makefile

.PHONY: build clean deps check-deps check-services init-db start-api start-worker stop help

# Go build settings
GOFLAGS := -v
LDFLAGS := -w -s

# Binaries
WORKER_BIN := bin/worker
API_BIN := bin/api-gateway

# Build all binaries
build: deps $(WORKER_BIN) $(API_BIN)

# Check dependencies
check-deps:
	@echo "🔍 Checking dependencies..."
	@command -v go >/dev/null 2>&1 || { echo "❌ Go is not installed"; exit 1; }
	@command -v psql >/dev/null 2>&1 || { echo "❌ PostgreSQL client is not installed"; exit 1; }
	@command -v redis-cli >/dev/null 2>&1 || { echo "❌ Redis client is not installed"; exit 1; }
	@echo "✅ All dependencies found"

# Download Go dependencies
deps: check-deps
	@echo "📦 Downloading Go dependencies..."
	@go mod download
	@go mod tidy

# Build worker
$(WORKER_BIN): cmd/worker/main.go
	@echo "🔨 Building worker..."
	@mkdir -p bin
	@go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(WORKER_BIN) ./cmd/worker

# Build API gateway
$(API_BIN): cmd/api-gateway/main.go
	@echo "🔨 Building API gateway..."
	@mkdir -p bin
	@go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(API_BIN) ./cmd/api-gateway

# Clean build artifacts
clean:
	@echo "🧹 Cleaning build artifacts..."
	@rm -rf bin/

# Check if services are running
check-services:
	@echo "🔍 Checking required services..."
	@pg_isready -h localhost -p 5432 >/dev/null 2>&1 || { echo "❌ PostgreSQL is not running on localhost:5432"; exit 1; }
	@redis-cli -h localhost -p 6379 ping >/dev/null 2>&1 || { echo "❌ Redis is not running on localhost:6379"; exit 1; }
	@echo "✅ PostgreSQL and Redis are running"

# Initialize database
init-db: check-services
	@echo "🗄️  Initializing database..."
	@psql -h localhost -p 5432 -U postgres -c "CREATE DATABASE IF NOT EXISTS distributed_tasks;" 2>/dev/null || true
	@echo "✅ Database initialized"

# Start worker (blocking)
start-worker: build check-services
	@echo "🚀 Starting worker..."
	@./$(WORKER_BIN)

# Start API gateway (blocking)
start-api: build check-services
	@echo "🚀 Starting API gateway..."
	@./$(API_BIN)

# Start all services in background
start-all: build check-services
	@echo "🚀 Starting all services in background..."
	@./$(WORKER_BIN) & echo $$! > worker.pid
	@./$(API_BIN) & echo $$! > api.pid
	@echo "✅ Services started"
	@echo "   Worker PID: `cat worker.pid`"
	@echo "   API Gateway PID: `cat api.pid`"
	@echo "🛑 Run 'make stop' to stop all services"

# Stop background services
stop:
	@echo "🛑 Stopping services..."
	@kill `cat worker.pid` 2>/dev/null && echo "   ✅ Worker stopped" || echo "   ⚠️  Worker not running"
	@kill `cat api.pid` 2>/dev/null && echo "   ✅ API Gateway stopped" || echo "   ⚠️  API Gateway not running"
	@rm -f worker.pid api.pid

# Show help
help:
	@echo "📖 Distributed Task Processing System"
	@echo "===================================="
	@echo ""
	@echo "Available commands:"
	@echo "   make build        - Build all binaries"
	@echo "   make clean        - Clean build artifacts"
	@echo "   make deps         - Download Go dependencies"
	@echo "   make check-deps   - Check if required tools are installed"
	@echo "   make check-services - Check if PostgreSQL and Redis are running"
	@echo "   make init-db      - Initialize PostgreSQL database"
	@echo ""
	@echo "Running services:"
	@echo "   make start-worker - Start worker (blocking)"
	@echo "   make start-api    - Start API gateway (blocking)"
	@echo "   make start-all    - Start all services in background"
	@echo "   make stop         - Stop background services"
	@echo ""
	@echo "Prerequisites:"
	@echo "   - PostgreSQL running on localhost:5432"
	@echo "   - Redis running on localhost:6379"
	@echo "   - Go 1.19+ installed"

# Default target
.DEFAULT_GOAL := help