# 支持通过参数传入CC编译器，默认使用gcc
CC ?= gcc
CFLAGS = -Wall -Wextra -std=c99 -O2
LDFLAGS = -lssl -lcrypto -lpthread

# 目标文件
SERVER_TARGET = tls_server
CLIENT_TARGET = tls_client
TEST_TARGET = test_long_message
SERVER_SOURCE = tls_server.c
CLIENT_SOURCE = tls_client.c
TEST_SOURCE = test_long_message.c

# 默认目标
all: $(SERVER_TARGET) $(CLIENT_TARGET) $(TEST_TARGET)

# 编译服务器
$(SERVER_TARGET): $(SERVER_SOURCE)
	$(CC) $(CFLAGS) -o $(SERVER_TARGET) $(SERVER_SOURCE) $(LDFLAGS)

# 编译客户端
$(CLIENT_TARGET): $(CLIENT_SOURCE)
	$(CC) $(CFLAGS) -o $(CLIENT_TARGET) $(CLIENT_SOURCE) $(LDFLAGS)

# 编译测试程序
$(TEST_TARGET): $(TEST_SOURCE)
	$(CC) $(CFLAGS) -o $(TEST_TARGET) $(TEST_SOURCE) -lssl -lcrypto

# 生成证书
cert:
	chmod +x generate_cert.sh
	./generate_cert.sh

# 运行服务器（默认端口8443）
run: $(SERVER_TARGET) cert
	./$(SERVER_TARGET)

# 运行服务器（指定端口）
run-port: $(SERVER_TARGET) cert
	@echo "请输入端口号:"
	@read port; ./$(SERVER_TARGET) -p $$port

# 测试客户端
test: $(CLIENT_TARGET)
	@echo "测试客户端，发送消息 'Hello World'"
	./$(CLIENT_TARGET) -m "Hello World"

# 测试循环客户端
test-loop: $(CLIENT_TARGET)
	@echo "测试循环客户端，发送5次消息，间隔2秒"
	./$(CLIENT_TARGET) -m "Loop Test" -c 5 -i 2

# 测试TLS 1.2
test-tls12: $(CLIENT_TARGET)
	@echo "测试TLS 1.2连接"
	./$(CLIENT_TARGET) -m "TLS 1.2 Test" -t 1.2

# 测试TLS 1.3
test-tls13: $(CLIENT_TARGET)
	@echo "测试TLS 1.3连接"
	./$(CLIENT_TARGET) -m "TLS 1.3 Test" -t 1.3

# 测试TLS版本对比
test-tls-compare: $(CLIENT_TARGET)
	@echo "测试TLS版本对比"
	@echo "=== TLS 1.2 测试 ==="
	./$(CLIENT_TARGET) -m "TLS 1.2" -t 1.2 -c 2 -i 1
	@echo ""
	@echo "=== TLS 1.3 测试 ==="
	./$(CLIENT_TARGET) -m "TLS 1.3" -t 1.3 -c 2 -i 1
	@echo ""
	@echo "=== 自动协商测试 ==="
	./$(CLIENT_TARGET) -m "Auto TLS" -t auto -c 2 -i 1

# 测试并发连接
test-concurrent: $(CLIENT_TARGET)
	@echo "测试并发客户端连接"
	@echo "启动2个并发客户端..."
	./$(CLIENT_TARGET) -m "Concurrent 1" -c 1 &
	./$(CLIENT_TARGET) -m "Concurrent 2" -c 1 &
	wait
	@echo "并发测试完成"

# 测试长消息
test-long: $(TEST_TARGET)
	@echo "测试长消息，发送1000字符消息"
	./$(TEST_TARGET) 1000

# 清理
clean:
	rm -f $(SERVER_TARGET) $(CLIENT_TARGET) $(TEST_TARGET)
	rm -rf cert/

# 安装依赖（Ubuntu/Debian）
install-deps:
	sudo apt-get update
	sudo apt-get install -y libssl-dev

# 安装依赖（CentOS/RHEL）
install-deps-centos:
	sudo yum install -y openssl-devel

# 显示编译器信息
info:
	@echo "当前编译器: $(CC)"
	@echo "编译选项: $(CFLAGS)"
	@echo "链接选项: $(LDFLAGS)"

# 帮助信息
help:
	@echo "可用目标:"
	@echo "  all          - 编译服务器、客户端和测试程序"
	@echo "  cert         - 生成自签名证书"
	@echo "  run          - 运行服务器（端口8443）"
	@echo "  run-port     - 运行服务器（指定端口）"
	@echo "  test         - 测试客户端连接"
	@echo "  test-loop    - 测试循环客户端连接"
	@echo "  test-tls12   - 测试TLS 1.2连接"
	@echo "  test-tls13   - 测试TLS 1.3连接"
	@echo "  test-tls-compare - 测试TLS版本对比"
	@echo "  test-concurrent - 测试并发客户端连接"
	@echo "  test-long    - 测试长消息发送"
	@echo "  clean        - 清理生成的文件"
	@echo "  install-deps - 安装依赖（Ubuntu/Debian）"
	@echo "  info         - 显示编译器信息"
	@echo "  help         - 显示此帮助信息"
	@echo ""
	@echo "编译器参数:"
	@echo "  CC=clang make all    - 使用clang编译器"
	@echo "  CC=gcc make all      - 使用gcc编译器（默认）"
	@echo "  CC=cc make all       - 使用系统默认编译器"

.PHONY: all cert run run-port clean install-deps install-deps-centos info help