FITTER_BINARY = $(shell which fitter)
FITTER_TREE_BINARY = $(shell which fitter_tree)
ROOT_MACROS = standard.C makeCanvas.C clearCutStrings.C getPads.C makeCanvasHist1d.C
ifndef OUTPUT_DIR
  OUTPUT_DIR = ./output
endif
ifndef HDGEANT_CONFIG_FILE
  HDGEANT_CONFIG_FILE = hdgeant_config.txt
endif

all: check_binaries make_output_dir $(OUTPUT_DIR)/standard1.png

check_binaries:
	@echo FITTER_BINARY = $(FITTER_BINARY)
ifndef $(FITTER_BINARY)
	@echo fitter_binary not found in path, exiting
	exit 1
endif
	@echo FITTER_TREE_BINARY = $(FITTER_TREE_BINARY)
ifndef $(FITTER_TREE_BINARY)
	@echo fitter_binary not found in path, exiting
	exit 1
endif

make_output_dir:
	test -d $(OUTPUT_DIR) || mkdir -p $(OUTPUT_DIR)

$(OUTPUT_DIR)/control.in: $(HDGEANT_CONFIG_FILE) control.in.template make_control.pl
	cp -v $(HDGEANT_CONFIG_FILE) $(OUTPUT_DIR)
	cp -v control.in.template $(OUTPUT_DIR)
	cp -v make_control.pl $(OUTPUT_DIR)
	cd $(OUTPUT_DIR) ; ./make_control.pl $(HDGEANT_CONFIG_FILE)

$(OUTPUT_DIR)/hdgeant.hddm: $(OUTPUT_DIR)/control.in
	cd $(OUTPUT_DIR) ; hdgeant

$(OUTPUT_DIR)/hdgeant_smeared.hddm: $(OUTPUT_DIR)/hdgeant.hddm
	cd $(OUTPUT_DIR) ; mcsmear -n -u2.72727 hdgeant.hddm

$(OUTPUT_DIR)/fitter.hddm: config.txt $(OUTPUT_DIR)/hdgeant_smeared.hddm
	cp config.txt $(OUTPUT_DIR)
	cd $(OUTPUT_DIR) ; $(FITTER_BINARY) hdgeant_smeared.hddm

$(OUTPUT_DIR)/fitter_tree.root: $(OUTPUT_DIR)/fitter.hddm
	cd $(OUTPUT_DIR) ; fitter_tree

ifdef MULTI_FILE
$(OUTPUT_DIR)/addToChain.C: make_addToChain.pl
else
$(OUTPUT_DIR)/addToChain.C: make_addToChain.pl $(OUTPUT_DIR)/fitter_tree.root
endif
	cp make_addToChain.pl $(OUTPUT_DIR)
	cd $(OUTPUT_DIR) ; ./make_addToChain.pl

$(OUTPUT_DIR)/standard1.png: $(OUTPUT_DIR)/addToChain.C $(ROOT_MACROS)
	$(RM) $(OUTPUT_DIR)/*.png
	cp $(ROOT_MACROS) $(OUTPUT_DIR)
	cd $(OUTPUT_DIR) ; root -b -q standard.C

display: $(OUTPUT_DIR)/standard1.png
	eog $(OUTPUT_DIR)/*.png &