#
# Tibia
#
# Copyright (C) 2024 Orastron Srl unipersonale
#
# Tibia is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# Tibia is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Tibia.  If not, see <http://www.gnu.org/licenses/>.
#
# File author: Stefano D'Angelo
#

include vars.mk

ifeq ($(OS), Windows_NT)
	DLL_SUFFIX = .dll
	UI_TYPE = WindowsUI
	LV2DIR = $(shell echo '${COMMONPROGRAMFILES}' | sed 's:\\:/:g')/LV2
	LV2DIR_USER = $(shell echo '${APPDATA}' | sed 's:\\:/:g')/LV2
	CC = gcc
	CXX = g++
else
	UNAME_S = $(shell uname -s)
	ifeq ($(UNAME_S), Darwin)
		DLL_SUFFIX = .dylib
		UI_TYPE = CocoaUI
		LV2DIR = /Library/Audio/Plug-Ins/LV2
		LV2DIR_USER = ${HOME}/Library/Audio/Plug-Ins/LV2
		CC = clang
		CXX = clang++
	else
		DLL_SUFFIX = .so
		UI_TYPE = X11UI
		PREFIX = /usr/local
		LV2DIR = ${PREFIX}/lib/lv2
		LV2DIR_USER = ${HOME}/.lv2
		CC = gcc
		CXX = g++
	endif
endif

COMMON_DIR := $(or $(COMMON_DIR),.)
DATA_DIR := $(or $(DATA_DIR),.)
PLUGIN_DIR := $(or $(PLUGIN_DIR),src)

CFLAGS = -O3 -Wall -Wpedantic -Wextra
CFLAGS_ALL = -I${DATA_DIR}/src -I${PLUGIN_DIR} -fPIC ${CFLAGS} ${CFLAGS_EXTRA}

LDFLAGS =
LDFLAGS_ALL = -shared ${LDFLAGS} ${LDFLAGS_EXTRA}

CXXFLAGS = ${CFLAGS}
CXXFLAGS_ALL = -I${DATA_DIR}/src -I${PLUGIN_DIR} -fPIC ${CXXFLAGS} ${CXXFLAGS_EXTRA}

ifeq ($(UNAME_S), Darwin)
CFLAGS_ALL := ${CFLAGS_ALL} -arch arm64 -arch x86_64
LDFLAGS_ALL := ${LDFLAGS_ALL} -arch arm64 -arch x86_64
CXXFLAGS_ALL := ${CXXFLAGS_ALL} -arch arm64 -arch x86_64
endif

BUNDLE_DIR = ${BUNDLE_NAME}.lv2

DLL_FILE = ${BUNDLE_NAME}${DLL_SUFFIX}

C_SRCS = ${COMMON_DIR}/src/lv2.c ${C_SRCS_EXTRA}
C_OBJS = $(addprefix build/obj/, $(notdir $(C_SRCS:.c=.o)))

CXX_SRCS = ${CXX_SRCS_EXTRA}
CXX_OBJS = $(addprefix build/obj/, $(notdir $(CXX_SRCS:.cpp=.o)))

all: build/${BUNDLE_DIR}/manifest.ttl build/${BUNDLE_DIR}/${DLL_FILE}

build/${BUNDLE_DIR}/manifest.ttl: ${DATA_DIR}/data/manifest.ttl.in | build/${BUNDLE_DIR}
	cat $^ | sed s/@DLL_SUFFIX@/${DLL_SUFFIX}/g | sed s/@UI_TYPE@/${UI_TYPE}/g > $@

ifeq ($(CXX_OBJS),)
build/${BUNDLE_DIR}/${DLL_FILE}: ${C_OBJS} | build/${BUNDLE_DIR}
	${CC} $^ -o $@ ${CFLAGS_ALL} ${LDFLAGS_ALL}
else
build/${BUNDLE_DIR}/${DLL_FILE}: ${C_OBJS} ${CXX_OBJS} | build/${BUNDLE_DIR}
	${CXX} $^ -o $@ ${CFLAGS_ALL} ${CXXFLAGS_ALL} ${LDFLAGS_ALL}
endif

build/${BUNDLE_DIR} build/obj:
	mkdir -p $@

clean:
	rm -fr build

install: all
	mkdir -p -m 0755 "${LV2DIR}/${BUNDLE_DIR}"
	install -m 0644 build/${BUNDLE_DIR}/manifest.ttl "${LV2DIR}/${BUNDLE_DIR}"
	install -m 0755 build/${BUNDLE_DIR}/${DLL_FILE} "${LV2DIR}/${BUNDLE_DIR}"

install-user: all
	mkdir -p -m 0755 "${LV2DIR_USER}/${BUNDLE_DIR}"
	install -m 0644 build/${BUNDLE_DIR}/manifest.ttl "${LV2DIR_USER}/${BUNDLE_DIR}"
	install -m 0755 build/${BUNDLE_DIR}/${DLL_FILE} "${LV2DIR_USER}/${BUNDLE_DIR}"

.PHONY: all clean install install-user

.SECONDEXPANSION:

PERCENT := %

$(C_OBJS): build/obj/%.o: $$(filter $$(PERCENT)/$$(basename $$(notdir $$@)).c,$$(C_SRCS)) | build/obj
	${CC} $^ -o $@ -c ${CFLAGS_ALL}

$(CXX_OBJS): build/obj/%.o: $$(filter $$(PERCENT)/$$(basename $$(notdir $$@)).cpp,$$(CXX_SRCS)) | build/obj
	${CXX} $^ -o $@ -c ${CXXFLAGS_ALL}