# crossfire: distributed brute force infrastructure
#
# Copyright (C) 2020 haskal
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

.PHONY: all clean mrproper local-racket

APP_NAME=crossfire-agent
RKT_NAME=$(APP_NAME).rkt

MONOCYPHER_VERSION=3.1.1
RACKET_VERSION=7.9

TARGET_ARCH=$(shell $(CC) -dumpmachine)

####################################################################################################

LIBS=-ldl -lm
ifneq (,$(findstring x86_64,$(TARGET_ARCH)))
LIBS+=-lpthread -lffi
endif
# for musl
# TODO autodetect musl or something
#LIBS=-lffi -lucontext

ARCH_DIR=arch_$(TARGET_ARCH)
CACHE_DIR=cache
VENDOR_DIR=$(ARCH_DIR)/vendor

MONOCYPHER_DIR=$(VENDOR_DIR)/monocypher-$(MONOCYPHER_VERSION)
MONOCYPHER_URL=https://monocypher.org/download/monocypher-$(MONOCYPHER_VERSION).tar.gz
MONOCYPHER_FILE=$(CACHE_DIR)/monocypher.tar.gz

RACKET_DIR=$(VENDOR_DIR)/racket-$(RACKET_VERSION)
RACKET_URL=https://mirror.racket-lang.org/installers/$(RACKET_VERSION)/racket-minimal-$(RACKET_VERSION)-src.tgz
RACKET_FILE=$(CACHE_DIR)/racket.tar.gz

all: $(ARCH_DIR)/$(APP_NAME)

# main build
$(ARCH_DIR)/$(APP_NAME): main_bc.c app.o $(MONOCYPHER_DIR)/lib/libmonocypher.a
	[ -d $(ARCH_DIR) ] || mkdir -p $(ARCH_DIR)
	$(CC) -o $@ -pipe -fPIC -O3 -DAPP_NAME='"$(APP_NAME)"' -I$(MONOCYPHER_DIR)/src -static $^ \
		-DAPP_ARCH='"$(TARGET_ARCH)"' \
		-L$(MONOCYPHER_DIR)/lib -L$(RACKET_DIR)/lib \
		-lracket3m -lrktio -lmonocypher $(LIBS)

# this is faster than --c-mods by a lot
# it's potentially less portable but works on GNU ld and probably lld too
app.o: app.zo
	$(LD) -r -b binary $< -o $@

app.zo: $(RKT_NAME)
	raco ctool --mods $@ $<

clean:
	$(RM) $(APP_NAME) *.zo *.o

mrproper: clean
	$(RM) -r $(VENDOR_DIR) $(CACHE_DIR)


$(MONOCYPHER_DIR)/lib/libmonocypher.a: $(MONOCYPHER_DIR)/.extracted
	cd $(MONOCYPHER_DIR) && $(MAKE) USE_ED22519=true static-library

$(MONOCYPHER_DIR)/.extracted: $(MONOCYPHER_FILE)
	[ -d $(MONOCYPHER_DIR) ] || mkdir -p $(MONOCYPHER_DIR)
	tar xf $< -C $(VENDOR_DIR) && touch $@

$(MONOCYPHER_FILE):
	[ -d $(CACHE_DIR) ] || mkdir -p $(CACHE_DIR)
	wget -O $@ $(MONOCYPHER_URL) || curl -o $@ $(MONOCYPHER_URL)


local-racket: $(RACKET_DIR)/lib/libracket3m.a

$(RACKET_DIR)/lib/libracket3m.a: $(RACKET_DIR)/.extracted
	cd $(RACKET_DIR)/src && ./configure --enable-bconly --prefix=/usr --sysconfdir=/etc \
		--disable-libffi
	cd $(RACKET_DIR)/src && $(MAKE)
	[ -d $(RACKET_DIR)/lib ] || mkdir $(RACKET_DIR)/lib
	cp $(RACKET_DIR)/src/bc/rktio/librktio.a $(RACKET_DIR)/lib
	cp $(RACKET_DIR)/src/bc/libracket3m.a $(RACKET_DIR)/lib
	cp $(RACKET_DIR)/src/bc/foreign/libffi/.libs/libffi.a $(RACKET_DIR)/lib


$(RACKET_DIR)/.extracted: $(RACKET_FILE)
	[ -d $(RACKET_DIR) ] || mkdir -p $(RACKET_DIR)
	tar xf $< -C $(VENDOR_DIR) && touch $@

$(RACKET_FILE):
	[ -d $(CACHE_DIR) ] || mkdir -p $(CACHE_DIR)
	wget -O $@ $(RACKET_URL) || curl -o $@ $(RACKET_URL)