SHELL = /bin/sh

PKG_CONFIG ?= pkg-config
GUI_LIBS += lv2 sndfile x11 cairo
LV2_LIBS += lv2 sndfile
ifneq ($(shell $(PKG_CONFIG) --exists fontconfig || echo no), no)
  GUI_LIBS += fontconfig
  GUIPPFLAGS += -DPKG_HAVE_FONTCONFIG
endif

CC ?= gcc
CXX ?= g++
INSTALL ?= install
INSTALL_PROGRAM ?= $(INSTALL)
INSTALL_DATA ?= $(INSTALL) -m644
STRIP ?= strip

PREFIX ?= /usr/local
LV2DIR ?= $(PREFIX)/lib/lv2

OPTIMIZATIONS ?=-O3 -ffast-math
CFLAGS ?=-Wall
CXXFLAGS ?=-Wall
STRIPFLAGS ?=-s --strip-program=$(STRIP)
LDFLAGS ?=-Wl,-Bstatic -Wl,-Bdynamic -Wl,--as-needed

override CFLAGS += -std=c99 -fvisibility=hidden -fPIC
override CXXFLAGS += -std=c++11 -fvisibility=hidden -fPIC
override LDFLAGS += -shared -pthread

override GUIPPFLAGS += -DPUGL_HAVE_CAIRO
DSPCFLAGS += `$(PKG_CONFIG) --cflags $(LV2_LIBS)`
GUICFLAGS += `$(PKG_CONFIG) --cflags $(GUI_LIBS)`
DSPLIBS += -lm `$(PKG_CONFIG) --libs $(LV2_LIBS)`
GUILIBS += -lm `$(PKG_CONFIG) --libs $(GUI_LIBS)`

#ifeq ($(shell test -e src/Locale_$(LANGUAGE).hpp && echo -n yes),yes)
#  override GUIPPFLAGS += -DLOCALEFILE=\"Locale_$(LANGUAGE).hpp\"
#endif

#ifdef WWW_BROWSER_CMD
#  override GUIPPFLAGS += -DWWW_BROWSER_CMD=\"$(WWW_BROWSER_CMD)\"
#endif

BUNDLE = BLow.lv2
DSP = BLow
DSP_SRC = ./src/BLow.cpp
GUI = BLow_GUI
GUI_SRC = ./src/BLow_GUI.cpp
OBJ_EXT = .so
DSP_OBJ = $(DSP)$(OBJ_EXT)
GUI_OBJ = $(GUI)$(OBJ_EXT)
B_OBJECTS = $(addprefix $(BUNDLE)/, $(DSP_OBJ) $(GUI_OBJ))
ROOTFILES = \
	*.ttl \
	LICENSE

INCFILES = inc/*.png inc/*.wav

B_FILES = $(addprefix $(BUNDLE)/, $(ROOTFILES) $(INCFILES))

DSP_INCL = 

GUI_CXX_INCL = \
BWidgets/BUtilities/Urid.cpp \
BWidgets/BUtilities/Dictionary.cpp \
BWidgets/BWidgets/Supports/Closeable.cpp \
BWidgets/BWidgets/Supports/Messagable.cpp \
BWidgets/BWidgets/Window.cpp \
BWidgets/BWidgets/Widget.cpp 

GUI_C_INCL = \
BWidgets/BUtilities/cairoplus.c \
BWidgets/BWidgets/pugl/implementation.c \
BWidgets/BWidgets/pugl/x11_stub.c \
BWidgets/BWidgets/pugl/x11_cairo.c \
BWidgets/BWidgets/pugl/x11.c

$(BUNDLE): check clean $(DSP_OBJ) $(GUI_OBJ)
	@cp $(ROOTFILES) $(BUNDLE)
	@mkdir -p $(BUNDLE)/inc
	@cp $(INCFILES) $(BUNDLE)/inc

all: $(BUNDLE)

$(DSP_OBJ): $(DSP_SRC)
	@echo -n Build $(BUNDLE) DSP...
	@mkdir -p $(BUNDLE)
	@$(CXX) $(CPPFLAGS) $(OPTIMIZATIONS) $(CXXFLAGS) $(LDFLAGS) $(DSPCFLAGS) -Wl,--start-group $(DSPLIBS) $< $(DSP_INCL) -Wl,--end-group -o $(BUNDLE)/$@ 
	@echo \ done.

$(GUI_OBJ): $(GUI_SRC)
	@echo -n Build $(BUNDLE) GUI...
	@mkdir -p $(BUNDLE)
	@mkdir -p $(BUNDLE)/tmp
	@cd $(BUNDLE)/tmp; $(CC) $(CPPFLAGS) $(GUIPPFLAGS) $(CFLAGS) $(GUICFLAGS) $(addprefix ../../, $(GUI_C_INCL)) -c
	@cd $(BUNDLE)/tmp; $(CXX) $(CPPFLAGS) $(GUIPPFLAGS) $(CXXFLAGS) $(GUICFLAGS) $(addprefix ../../, $< $(GUI_CXX_INCL)) -c
	@$(CXX) $(CPPFLAGS) $(GUIPPFLAGS) $(CXXFLAGS) $(LDFLAGS) $(GUICFLAGS) -Wl,--start-group $(GUILIBS) $(BUNDLE)/tmp/*.o -Wl,--end-group -o $(BUNDLE)/$@ 
	@rm -rf $(BUNDLE)/tmp
	@echo \ done.

install:
	@echo -n Install $(BUNDLE) to $(DESTDIR)$(LV2DIR)...
	@$(INSTALL) -d $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL) -d $(DESTDIR)$(LV2DIR)/$(BUNDLE)/inc
	@$(INSTALL_PROGRAM) -m755 $(B_OBJECTS) $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL_DATA) $(addprefix $(BUNDLE)/, $(ROOTFILES)) $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL_DATA) $(addprefix $(BUNDLE)/, $(INCFILES)) $(DESTDIR)$(LV2DIR)/$(BUNDLE)/inc
	@echo \ done.

install-strip:
	@echo -n "Install (stripped)" $(BUNDLE) to $(DESTDIR)$(LV2DIR)...
	@$(INSTALL) -d $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL) -d $(DESTDIR)$(LV2DIR)/$(BUNDLE)/inc
	@$(INSTALL_PROGRAM) -m755 $(STRIPFLAGS) $(B_OBJECTS) $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL_DATA) $(addprefix $(BUNDLE)/, $(ROOTFILES)) $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@$(INSTALL_DATA) $(addprefix $(BUNDLE)/, $(INCFILES)) $(DESTDIR)$(LV2DIR)/$(BUNDLE)/inc
	@echo \ done.

uninstall:
	@echo -n Uninstall $(BUNDLE)...
	@rm -f $(addprefix $(DESTDIR)$(LV2DIR)/$(BUNDLE)/, $(ROOTFILES) $(INCFILES))
	-@rmdir $(DESTDIR)$(LV2DIR)/$(BUNDLE)/inc
#	@rm -f $(DESTDIR)$(LV2DIR)/$(BUNDLE)/$(GUI_OBJ)
	@rm -f $(DESTDIR)$(LV2DIR)/$(BUNDLE)/$(DSP_OBJ)
	-@rmdir $(DESTDIR)$(LV2DIR)/$(BUNDLE)
	@echo \ done.

check:
ifeq ($(shell $(PKG_CONFIG) --exists 'sndfile > 1.0.18' || echo no), no)
  $(error sndfile >= 1.0.18 not found. Please install sndfile >= 1.0.18 first.)
endif
ifeq ($(shell $(PKG_CONFIG) --exists 'lv2 >= 1.14.0' || echo no), no)
  $(error lv2 >= 1.14.0 not found. Please install lv2 >= 1.14.0 first.)
endif
ifeq ($(shell $(PKG_CONFIG) --exists 'x11 >= 1.6.0' || echo no), no)
  $(error x11 >= 1.6.0 not found. Please install x11 >= 1.6.0 first.)
endif
ifeq ($(shell $(PKG_CONFIG) --exists 'cairo >= 1.12.0' || echo no), no)
  $(error cairo >= 1.12.0 not found. Please install cairo >= 1.12.0 first.)
endif

clean:
	@rm -rf $(BUNDLE)

.PHONY: all install uninstall check clean

.NOTPARALLEL: