#!/usr/bin/make -f
# --------------------------------------------------------------
# SPDX-License-Identifier: GPL-3.0-or-later
# --------------------------------------------------------------
# Build File    :   Makefile
# File Authors  :  Aoran Zeng  <ccmywish@qq.com>
# Contributors  :  Yangmoooo   <yangmoooo@outlook.com>
#								| sanchuanhehe <wyihe5520@gmail.com>
#								|
# Created On    : <2023-08-28>
# Last Modified : <2025-06-20>
#
# 请阅读 ./doc/01-Develop.md 来使用
# --------------------------------------------------------------

#=========== OS Check ================
On-Linux = 0
On-Windows = 0
On-macOS = 0

ifeq ($(shell uname), Linux)
	On-Linux = 1
endif

ifeq ($(shell uname), Darwin)
	On-macOS = 1
endif

# 只有Windows会定义$(OS)变量
ifeq ($(OS), Windows_NT)
	On-Windows = 1
endif
#=====================================



#======== Default Tooling ============
ifeq ($(On-Windows), 1)
	# MSYS2 环境
	CC = cc
else ifeq ($(On-macOS), 1)
	CC = clang
else
	CC = cc
endif

ifeq ($(On-macOS), 1)
	DEBUGGER = lldb
else
	DEBUGGER = gdb
endif
#=====================================



#======== Compilation Config ==========
CFLAGS += -Iinclude -Ilib

ifeq ($(On-Windows), 1)
	CLANG_FLAGS = -target x86_64-pc-windows-gnu
endif

ifeq ($(CC), clang)
	CFLAGS += $(CLANG_FLAGS)
endif

override WARN += -Wall -Wextra -Wno-unused-variable -Wno-unused-function -Wno-missing-braces -Wno-misleading-indentation \
	-Wno-missing-field-initializers -Wno-unused-parameter -Wno-sign-compare
_C_Warning_Flags := $(WARN)

DevMode-Target-Name = chsrc
DebugMode-Target-Name = chsrc-debug
ReleaseMode-Target-Name = chsrc-release
CIReleaseMode-Target-Name = chsrc-ci-release

CFLAGS_debug  = -g -DXY_DEBUG
CFLAGS_static = -static
CFLAGS_optimization = -O2

ifdef DEBUG
	CFLAGS += $(CFLAGS_debug)
endif

STATIC = 0

ifeq ($(STATIC), 1)
	CFLAGS += $(CFLAGS_static)
endif
#=====================================



#====== CI release mode 的配置 =======
ifeq ($(MAKECMDGOALS), build-in-ci-release-mode)
	CFLAGS += $(CFLAGS_optimization)
	# 仅在 Linux 上使用静态链接
	ifeq ($(On-Linux), 1)
		CFLAGS += $(CFLAGS_static)
	endif
endif
#=====================================



#============ Aliases ================
all: build

b: build-in-dev-mode
build: build-in-dev-mode
bd: build-in-debug-mode
br: build-in-release-mode
bcir: build-in-ci-release-mode
d: debug
t: test
check: test
c: clean
#=====================================



build-in-dev-mode:
	@echo Starting: Build in DEV mode: \'$(CC)\' $(CFLAGS) -o $(DevMode-Target-Name)
	@$(CC) src/chsrc-main.c $(CFLAGS) $(_C_Warning_Flags) -o $(DevMode-Target-Name)
	@echo Finished: Build in DEV mode

build-in-debug-mode: CFLAGS += $(CFLAGS_debug)
build-in-debug-mode:
	@echo Starting: Build in DEBUG mode: \'$(CC)\' $(CFLAGS) -o $(DebugMode-Target-Name)
	@$(CC) src/chsrc-main.c $(CFLAGS) $(_C_Warning_Flags) -o $(DebugMode-Target-Name)
	@echo Finished: Build in DEBUG mode

build-in-release-mode: CFLAGS += $(CFLAGS_optimization)
build-in-release-mode:
	@echo Starting: Build in RELEASE mode: \'$(CC)\' $(CFLAGS) -o $(ReleaseMode-Target-Name)
	@$(CC) src/chsrc-main.c $(CFLAGS) $(_C_Warning_Flags) -o $(ReleaseMode-Target-Name)
	@echo Finished: Build in RELEASE mode

# CI release mode 的配置在该文件上方
build-in-ci-release-mode:
	@echo Starting: Build in CI-RELEASE mode: \'$(CC)\' $(CFLAGS) -o $(CIReleaseMode-Target-Name)
	@$(CC) src/chsrc-main.c $(CFLAGS) $(_C_Warning_Flags) -o $(CIReleaseMode-Target-Name)
	@echo Finished: Build in CI-RELEASE mode

# 永远重新编译
debug: build-in-debug-mode
	@$(DEBUGGER) $(DebugMode-Target-Name)

test: test-make-env test-xy test-fw

test-make-env:
	@echo "On-Linux: $(On-Linux)"
	@echo "On-Windows: $(On-Windows)"
	@echo "On-macOS: $(On-macOS)"
	@echo "CC: $(CC)"
	@echo "CFLAGS: $(CFLAGS)"
	@echo "USER: $$(whoami)"
	@echo "PWD: $(shell pwd)"
	@echo "UID: $$(id -u)"
	@echo "GID: $$(id -g)"
# 检查HOME环境变量
	@if [ -z "$(HOME)" ]; then \
	 echo "HOME environment variable is not set!"; \
	else \
	 echo "HOME: $(HOME)"; \
	fi

test-xy:
	@$(CC) test/xy.c $(CFLAGS) -o xy
	@./xy

test-fw:
	@$(CC) test/fw.c $(CFLAGS) -o fw
	@./fw

check: test

# AUR package 安装时将执行此 target
fastcheck: $(DevMode-Target-Name)
	@perl ./test/cli.pl fastcheck

test-cli: $(DevMode-Target-Name)
	@perl ./test/cli.pl

clean:
	-@rm *.exe  2>/dev/null
	-@rm xy     2>/dev/null
	-@rm fw     2>/dev/null
	-@rm README.md.bak*    2>/dev/null

	-@rm chsrc  					 2>/dev/null
	-@rm chsrc-debug       2>/dev/null
	-@rm chsrc-release  	 2>/dev/null
	-@rm chsrc-ci-release  2>/dev/null

# -include pkg/deb/Makefile # 不这么做，因为 pkg/deb/Makefile 需要在 pkg/deb 目录下执行
# 保持动词在前的任务名风格
build-deb:
	@$(MAKE) -C pkg/deb deb-build

clean-deb:
	@$(MAKE) -C pkg/deb deb-clean

install: $(ReleaseMode-Target-Name)
	install -D -m 755 $(ReleaseMode-Target-Name) $(DESTDIR)/usr/bin/chsrc
	install -D -m 644 doc/chsrc.1 $(DESTDIR)/usr/share/man/man1/chsrc.1

.PHONY: all b build bd br bcir d t check c \
	build-in-dev-mode build-in-debug-mode build-in-release-mode build-in-ci-release-mode \
	debug test test-make-env test-xy test-fw fastcheck test-cli clean install build-deb clean-deb