CC = gcc
PKG_CONFIG = pkg-config
CONFIG_CFLAGS  := $(shell $(PKG_CONFIG) --cflags libconfig)
CONFIG_LDFLAGS := $(shell $(PKG_CONFIG) --libs libconfig)

CFLAGS = -Wall -O2 -Ilibmysyslog $(CONFIG_CFLAGS)
LDFLAGS = -L$(BUILD_DIR) -lmysyslog $(CONFIG_LDFLAGS)

BUILD_DIR = build

LIB_SRC    = libmysyslog/libmysyslog.c
LIB_OBJ    = $(BUILD_DIR)/libmysyslog.o
LIB_A      = $(BUILD_DIR)/libmysyslog.a

CLIENT_DIR   := myRPC-client/src
CLIENT_SRC   := $(CLIENT_DIR)/myRPC-client.c
CLIENT_OBJ   := $(BUILD_DIR)/myRPC-client.o
CLIENT_BIN   := $(BUILD_DIR)/myRPC-client

SERVER_DIR   := myRPC-server/src
SERVER_SRC   := $(SERVER_DIR)/myRPC-server.c
SERVER_OBJ   := $(BUILD_DIR)/myRPC-server.o
SERVER_BIN   := $(BUILD_DIR)/myRPC-server

version     = 1.0
revision    = 0
architecture = all

.PHONY: all clean deb repo systemd_install

all: $(BUILD_DIR) $(LIB_A) $(CLIENT_BIN) $(SERVER_BIN)

$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)

$(LIB_OBJ): $(LIB_SRC) | $(BUILD_DIR)
	$(CC) $(CFLAGS) -fPIC -c $< -o $@

$(LIB_A): $(LIB_OBJ)
	ar rcs $@ $^

$(CLIENT_OBJ): $(CLIENT_SRC) | $(BUILD_DIR)
	$(CC) $(CFLAGS) -c $< -o $@

$(CLIENT_BIN): $(CLIENT_OBJ)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

$(SERVER_OBJ): $(SERVER_SRC) | $(BUILD_DIR)
	$(CC) $(CFLAGS) -c $< -o $@

$(SERVER_BIN): $(SERVER_OBJ)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

###############################################################################
# Создание deb-пакетов
###############################################################################

deb: deb_client deb_server
	@rm -rf MyRPC_client_$(version)-$(revision)_$(architecture)
	@rm -rf MyRPC_server_$(version)-$(revision)_$(architecture)

deb_client:
	@mkdir -p MyRPC_client_$(version)-$(revision)_$(architecture)/DEBIAN
	@printf "Package: myrpc-client\nVersion: $(version)\nArchitecture: $(architecture)\nMaintainer: gandc <admin@gandc.ru>\nDescription: Client for remote command execution via myRPC\n" > MyRPC_client_$(version)-$(revision)_$(architecture)/DEBIAN/control
	@mkdir -p MyRPC_client_$(version)-$(revision)_$(architecture)/usr/local/bin
	@cp $(CLIENT_BIN) MyRPC_client_$(version)-$(revision)_$(architecture)/usr/local/bin
	@dpkg-deb --root-owner-group --build MyRPC_client_$(version)-$(revision)_$(architecture)

deb_server:
	@mkdir -p MyRPC_server_$(version)-$(revision)_$(architecture)/DEBIAN
	@printf "Package: myrpc-server\nVersion: $(version)\nArchitecture: $(architecture)\nMaintainer: gandc <admin@gandc.ru>\nDescription: Server for remote command execution via myRPC\n" > MyRPC_server_$(version)-$(revision)_$(architecture)/DEBIAN/control
	@mkdir -p MyRPC_server_$(version)-$(revision)_$(architecture)/usr/local/bin
	@cp $(SERVER_BIN) MyRPC_server_$(version)-$(revision)_$(architecture)/usr/local/bin
	@mkdir -p MyRPC_server_$(version)-$(revision)_$(architecture)/lib/systemd/system
	@cp systemd/myrpc-server.service MyRPC_server_$(version)-$(revision)_$(architecture)/lib/systemd/system
	@printf "#!/bin/sh\nsystemctl daemon-reload\n" > MyRPC_server_$(version)-$(revision)_$(architecture)/DEBIAN/postinst
	@chmod 755 MyRPC_server_$(version)-$(revision)_$(architecture)/DEBIAN/postinst
	@dpkg-deb --root-owner-group --build MyRPC_server_$(version)-$(revision)_$(architecture)

###############################################################################
# Создание локального репозитория APT
###############################################################################

repo:
	@mkdir -p /usr/local/repos
	@cp *.deb /usr/local/repos
	@cd /usr/local/repos && dpkg-scanpackages . /dev/null | gzip -9c > Packages.gz
	@echo "deb [trusted=yes] file:/usr/local/repos ./" | sudo tee /etc/apt/sources.list.d/myrpc.list
	@sudo apt-get update

###############################################################################
# Установка systemd unit-файла
###############################################################################

systemd_install:
	@echo "Installing systemd unit for myrpc-server..."
	@sudo cp systemd/myrpc-server.service /etc/systemd/system/
	@sudo systemctl daemon-reload
	@echo "Done. You can now sudo systemctl enable myrpc-server && sudo systemctl start myrpc-server"

###############################################################################
# Очистка
###############################################################################

clean:
	rm -rf $(BUILD_DIR)
	rm -f *.deb