# next line has to be edited manually
PD_DIR = $(ROOT_DIR)/../pd/src

OS_NAME = $(shell uname -s)
ifneq ($(OS_NAME),Linux)
ifneq ($(OS_NAME),Darwin)
# FIXME
endif
endif

TILDE = ~

-include Makefile.dirs
include Makefile.sources
include Makefile.objects

CC = gcc

default: define_build all

SHARED_DIR = $(ROOT_DIR)/shared
OBJ_DIR = .
OUT_DIR = $(ROOT_DIR)/bin

BASE_DIR = $(shell basename `pwd`)
BASE_NAME = $(shell basename `pwd` | awk -F - '{print $$1}')

# CX: control external's main file
# AX: audio (tilde) external's main file
# LX: symlink external's main file
#     (if symlink external is tilde-only, use OTHER_SOURCES and AX_CLASSES)

CX_NAMES = $(notdir $(CX_SOURCES))
AX_NAMES = $(notdir $(AX_SOURCES))
LX_NAMES = $(notdir $(LX_SOURCES))
TYPES_NAMES = $(notdir $($1_SOURCES))

CX_DIR = $(dir $(firstword $(CX_SOURCES)))
AX_DIR = $(dir $(firstword $(AX_SOURCES)))
TYPES_DIR = $(dir $(firstword $($1_SOURCES)))

TYPES_EXTERNS = \
	$(patsubst %.c,%$($1_TILDE).$(X_SUFFIX),$(call TYPES_NAMES,$1))

SOURCES = $(CX_SOURCES) $(AX_SOURCES) $(LX_SOURCES) $(OTHER_SOURCES) \
	$(foreach type,$(TYPES),$($(type)_SOURCES))

INCLUDES = -I. -I$(PD_DIR) -I$(SHARED_DIR)

ifeq ($(OS_NAME),Linux)
X_SUFFIX = pd_linux
DEFINES = -DUNIX
OPT_CFLAGS = -O6 -funroll-loops -fomit-frame-pointer
LFLAGS = -export_dynamic  -shared
endif

ifeq ($(OS_NAME),Darwin)
X_SUFFIX = pd_darwin
DEFINES = -DUNIX -DMACOSX
OPT_CFLAGS = -O2 -funroll-loops -fomit-frame-pointer
# -private_bundle is a guess, LATER check this
LFLAGS = -bundle -undefined suppress -flat_namespace
endif

WARN_CFLAGS = -Wall -W -Wstrict-prototypes -Werror \
	-Wno-unused -Wno-parentheses -Wno-switch
DBG_CFLAGS = 
CFLAGS = $(WARN_CFLAGS) $(OPT_CFLAGS) $(DEFINES) $(INCLUDES)

EXTERNS = $(foreach fn,$(CX_NAMES:.c=.$(X_SUFFIX)),$(OUT_DIR)/$(fn)) \
	$(foreach fn,$(AX_NAMES:.c=~.$(X_SUFFIX)),$(OUT_DIR)/$(fn)) \
	$(foreach fn,$(LX_SOURCES:.c=.$(X_SUFFIX)),$(OUT_DIR)/$(fn)) \
	$(foreach fn,$(CX_CLASSES:=.$(X_SUFFIX)),$(OUT_DIR)/$(fn)) \
	$(foreach fn,$(AX_CLASSES:=~.$(X_SUFFIX)),$(OUT_DIR)/$(fn)) \
	$(foreach type,$(TYPES),\
		$(foreach fn,$(call TYPES_EXTERNS,$(type)),$(OUT_DIR)/$(fn)))

TYPES_RULE = $(foreach fn,$(call TYPES_EXTERNS,$1),$(OUT_DIR)/$(fn)): \
		$(OUT_DIR)/%$($1_TILDE).$(X_SUFFIX) \
		: $(call TYPES_DIR,$1)%.o $($1_PRIVATEOBJECTS) \
			$(foreach obj,$($1_OBJECTS),$(SHARED_DIR)/$(obj)) \
	; $(CC) -o $$@ $(CFLAGS) $(LFLAGS) $$+

# LATER find a better way...
$(if $(word 1,$(TYPES)),$(call TYPES_RULE,$(word 1,$(TYPES))))
$(if $(word 2,$(TYPES)),$(call TYPES_RULE,$(word 2,$(TYPES))))
$(if $(word 3,$(TYPES)),$(call TYPES_RULE,$(word 3,$(TYPES))))
$(if $(word 4,$(TYPES)),$(call TYPES_RULE,$(word 4,$(TYPES))))
$(if $(word 5,$(TYPES)),$(call TYPES_RULE,$(word 5,$(TYPES))))
$(if $(word 6,$(TYPES)),$(call TYPES_RULE,$(word 6,$(TYPES))))
$(if $(word 7,$(TYPES)),$(call TYPES_RULE,$(word 7,$(TYPES))))
$(if $(word 8,$(TYPES)),$(call TYPES_RULE,$(word 8,$(TYPES))))
$(if $(word 9,$(TYPES)),$(call TYPES_RULE,$(word 9,$(TYPES))))
$(if $(word 10,$(TYPES)),$(call TYPES_RULE,$(word 10,$(TYPES))))
$(if $(word 11,$(TYPES)),$(call TYPES_RULE,$(word 11,$(TYPES))))
$(if $(word 12,$(TYPES)),$(call TYPES_RULE,$(word 12,$(TYPES))))
$(if $(word 13,$(TYPES)),$(call TYPES_RULE,$(word 13,$(TYPES))))
$(if $(word 14,$(TYPES)),$(call TYPES_RULE,$(word 14,$(TYPES))))
$(if $(word 15,$(TYPES)),$(call TYPES_RULE,$(word 15,$(TYPES))))
$(if $(word 16,$(TYPES)),$(call TYPES_RULE,$(word 16,$(TYPES))))
$(if $(word 17,$(TYPES)),$(call TYPES_RULE,$(word 17,$(TYPES))))
$(if $(word 18,$(TYPES)),$(call TYPES_RULE,$(word 18,$(TYPES))))
$(if $(word 19,$(TYPES)),$(call TYPES_RULE,$(word 19,$(TYPES))))
$(if $(word 20,$(TYPES)),$(call TYPES_RULE,$(word 20,$(TYPES))))
$(if $(word 21,$(TYPES)),$(call TYPES_RULE,$(word 21,$(TYPES))))
$(if $(word 22,$(TYPES)),$(call TYPES_RULE,$(word 22,$(TYPES))))
$(if $(word 23,$(TYPES)),$(call TYPES_RULE,$(word 23,$(TYPES))))
$(if $(word 24,$(TYPES)),$(call TYPES_RULE,$(word 24,$(TYPES))))

OBJECTS = $(foreach fn,$(OTHER_SOURCES:.c=.o),$(OBJ_DIR)/$(fn)) \
	$(foreach fn,$(LX_SOURCES:.c=.o),$(OBJ_DIR)/$(fn)) \
	$(foreach fn,$(SHARED_OBJECTS),$(SHARED_DIR)/$(fn))

# lame...
.PRECIOUS: %.o

# rules for symlink externals must precede generic extern rules
$(OUT_DIR)/$(BASE_NAME)_%~.$(X_SUFFIX): $(OUT_DIR)/$(BASE_NAME).$(X_SUFFIX)
	-ln -sf $(BASE_NAME).$(X_SUFFIX) $@
$(OUT_DIR)/$(BASE_NAME)_%.$(X_SUFFIX): $(OUT_DIR)/$(BASE_NAME).$(X_SUFFIX)
	-ln -sf $(BASE_NAME).$(X_SUFFIX) $@

# library stub
# if not equal BASE_NAME, it has to be declared explicitly in BASE_DIR/Makefile
$(OUT_DIR)/$(LX_STUB)_%~.$(X_SUFFIX): $(OUT_DIR)/$(BASE_NAME).$(X_SUFFIX)
	-ln -sf $(BASE_NAME).$(X_SUFFIX) $@
$(OUT_DIR)/$(LX_STUB)_%.$(X_SUFFIX): $(OUT_DIR)/$(BASE_NAME).$(X_SUFFIX)
	-ln -sf $(BASE_NAME).$(X_SUFFIX) $@
$(OUT_DIR)/$(LX_STUB).$(X_SUFFIX): $(OUT_DIR)/$(BASE_NAME).$(X_SUFFIX)
	-ln -sf $(BASE_NAME).$(X_SUFFIX) $@

# generic rule for audio externals
$(OUT_DIR)/%~.$(X_SUFFIX): $(AX_DIR)%.c $(OBJECTS)
	$(CC) -o $@ $(CFLAGS) $(LFLAGS) $(OBJECTS) $<

# generic rule for control externals
$(OUT_DIR)/%.$(X_SUFFIX): $(CX_DIR)%.c $(OBJECTS)
	$(CC) -o $@ $(CFLAGS) $(LFLAGS) $(OBJECTS) $<

SUBDIRS = @for i in $(MIXED_DIRS) and_in_case_it_is_null ; \
		do ( if [ -d $$i ] ; then \
			cd $$i; $(MAKE) $@ ; fi ) ; done

SUBDIRS_DEFAULT = @for i in $(MIXED_DIRS) and_in_case_it_is_null ; \
		do ( if [ -d $$i ] ; then \
			cd $$i; $(MAKE) ; fi ) ; done

define_build:
	@if [[ -f build_counter && \
		`date -r build_counter +%j` != `date +%j` ]] ; then \
		mv build_counter build_counter~ ; \
		echo -n 'increment build counter (y/n)? [n]' ; read doit ; \
		if [ $$doit ] && [ $$doit == 'y' ] ; then \
			cat build_counter~ | \
	awk '{if (index($$2,"BUILD")) print $$1, $$2, $$3+1; else print}' \
			> build_counter ; \
			cat build_counter | \
	awk 'BEGIN {printf toupper("$(BASE_NAME)_VERSION = ")} \
	    {gsub("\"","",$$3); printf $$3; if (NR==1) printf "-"} \
	    END {printf "\r\n" }' > $(ROOT_DIR)/ViCious/$(BASE_DIR)/version ; \
		else cat build_counter~ > build_counter ; fi \
	fi

all$(BASE_NAME)s.c: Makefile.sources
	$(ROOT_DIR)/dumpsetups > $@

all: $(EXTERNS)
	$(SUBDIRS_DEFAULT)

clean: emptydeps
# remove all objects and externs that are contained in current directory
	-rm -f *.o *.$(X_SUFFIX)
	$(SUBDIRS)

cleanall: clean
# remove default target externs
	-rm -f $(EXTERNS)

OLDROOT_DIR = $(shell ls -d -1 ../../Mixed-* | tail -1)

diff:
	@echo -n > diff.out ; \
	for f in {*.h,*.c} ; do \
		if [ -f $$f ] ; then \
			diff -u $(OLDROOT_DIR)/$(BASE_DIR)/$$f $$f >> diff.out ; \
		fi \
	done

VERSION = $(shell awk \
	'{if (index($$2,"VERSION")) print substr($$3,2,length($$3)-2)}' \
	build_counter)
RELEASE = $(shell awk \
	'{if (index($$2,"RELEASE")) print substr($$3,2,length($$3)-2)}' \
	build_counter)
BUILD = $(shell awk '{if (index($$2,"BUILD")) print $$3}' build_counter)

RELEASE_STUB = release/$(BASE_NAME)-$(VERSION)-$(RELEASE)$(BUILD)
SRC_TAR = $(RELEASE_STUB)-src.tar
BIN_TAR = $(RELEASE_STUB)-bin.tar
LIB_TAR = $(RELEASE_STUB)-lib.tar
DOC_TAR = $(RELEASE_STUB)-doc.tar
ALL_TAR = $(RELEASE_STUB)-all.tar
REL_BINDIR = bin

REL_LIBNAMES = $(foreach fn,$(RELEASE_LIBS:=.$(X_SUFFIX)),$(REL_BINDIR)/$(fn))

REL_EXTERNS = $(foreach fn,$(CX_NAMES:.c=.$(X_SUFFIX)),$(REL_BINDIR)/$(fn)) \
	$(foreach fn,$(AX_NAMES:.c=~.$(X_SUFFIX)),$(REL_BINDIR)/$(fn)) \
	$(REL_LIBNAMES) $(REL_BINDIR)/$(RELEASE_APPS) \
	$(foreach type,$(TYPES),\
		$(foreach fn,$(call TYPES_EXTERNS,$(type)),$(REL_BINDIR)/$(fn)))

REL_ROOTSRC = LICENSE.txt Makefile.common dumpsetups

srelease: emptydeps define_build
	cd $(ROOT_DIR)/shared; $(MAKE) emptydeps
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-all.exclude -cf \
		$(SRC_TAR) $(BASE_DIR)/* $(REL_ROOTSRC)
	cd $(ROOT_DIR); tar -T $(BASE_DIR)/$(BASE_NAME)-shared.include -rf \
		$(SRC_TAR)
	cd $(ROOT_DIR); gzip -f $(SRC_TAR)

stestrelease: emptydeps define_build
	cd $(ROOT_DIR)/shared; $(MAKE) emptydeps
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-all.exclude -cf \
		$(SRC_TAR) $(BASE_DIR)/* $(REL_ROOTSRC)
	cd $(ROOT_DIR); tar -T $(BASE_DIR)/$(BASE_NAME)-shared.include -rf \
		$(SRC_TAR)
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-test.exclude -rf \
		$(SRC_TAR) test/$(BASE_NAME)/*
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-vicious.exclude -rf \
		$(SRC_TAR) ViCious/$(BASE_DIR)/*
	cd $(ROOT_DIR); gzip -f $(SRC_TAR)

brelease: define_build
	cd $(ROOT_DIR); tar zcf \
		$(BIN_TAR).gz $(REL_EXTERNS)

rellibs:
	cd $(ROOT_DIR); tar zcf \
		$(LIB_TAR).gz $(REL_LIBNAMES)

drelease: define_build
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-doc.exclude -zcf \
		$(DOC_TAR).gz doc/examples/$(BASE_NAME)/*

release: srelease brelease drelease
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-all.exclude -cf \
		$(ALL_TAR) $(BASE_DIR)/* $(REL_ROOTSRC) $(REL_EXTERNS)
	cd $(ROOT_DIR); tar -T $(BASE_DIR)/$(BASE_NAME)-shared.include -rf \
		$(ALL_TAR)
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-doc.exclude -rf \
		$(ALL_TAR) doc/examples/$(BASE_NAME)/*
	cd $(ROOT_DIR); gzip -f $(ALL_TAR)

testrelease: stestrelease brelease
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-all.exclude -cf \
		$(ALL_TAR) $(BASE_DIR)/* $(REL_ROOTSRC) $(REL_EXTERNS)
	cd $(ROOT_DIR); tar -T $(BASE_DIR)/$(BASE_NAME)-shared.include -rf \
		$(ALL_TAR)
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-test.exclude -rf \
		$(ALL_TAR) test/$(BASE_NAME)/*
	cd $(ROOT_DIR); tar -X $(BASE_DIR)/$(BASE_NAME)-vicious.exclude -rf \
		$(ALL_TAR) ViCious/$(BASE_DIR)/*
	cd $(ROOT_DIR); gzip -f $(ALL_TAR)

snap: emptyalldeps testrelease rellibs

depend:
	$(CC) $(CFLAGS) -M $(SOURCES) > Makefile.deps
	$(SUBDIRS)

emptydeps:
	-rm -f Makefile.deps
	touch Makefile.deps
	chmod 666 Makefile.deps

emptyalldeps: emptydeps
	$(SUBDIRS)

Makefile.deps:
	touch Makefile.deps
	chmod 666 Makefile.deps

-include Makefile.deps