CC      = gcc
CFLAGS  = -Wall -Wextra -std=c11 -g

all: server_tcp_pairs client_tcp_pairs

server_tcp_pairs: server.c
	$(CC) $(CFLAGS) -o $@ $<

client_tcp_pairs: client.c
	$(CC) $(CFLAGS) -o $@ $<

test_server: server_tcp_pairs
	@echo "=== Запуск TCP-сервера (пары одинаковых символов) ==="
	@echo "Выходной файл: out.txt"
	./server_tcp_pairs 5000 out.txt

test_client: client_tcp_pairs
	@echo "=== Запуск TCP-клиента ==="
	@echo "Создаём input.txt"
	@printf "aabbccddeeff\nabba\nxxxxx\n" > input.txt
	./client_tcp_pairs 127.0.0.1 5000 input.txt

test_all: all
	@echo "=== Автотест TCP (пары одинаковых символов) ==="
	@printf "aabbccddeeff\nabba\nxxxxx\n" > input.txt
	./server_tcp_pairs 5000 out.txt & \
	SRV=$$!; \
	sleep 1; \
	./client_tcp_pairs 127.0.0.1 5000 input.txt; \
	wait $$SRV; \
	echo "--- input.txt ---"; \
	cat input.txt; \
	echo "--- out.txt ---"; \
	cat out.txt

clean:
	@echo "Очистка..."
	rm -f server_tcp_pairs client_tcp_pairs
	rm -f input.txt out.txt

help:
	@echo "Targets:"
	@echo "  all         - build server_tcp_pairs and client_tcp_pairs"
	@echo "  test_server - run server (port 5000, out.txt)"
	@echo "  test_client - run client to send input.txt"
	@echo "  test_all    - end-to-end TCP test"
	@echo "  clean       - remove binaries and test files"
	@echo "  help        - show this help"

.PHONY: all test_server test_client test_all clean help