# --------------------------------------------------
# Configuration
# --------------------------------------------------
CC       := gcc
CFLAGS   := -Wall -fopenmp -O3
SRCDIR   := src
OBJDIR   := out
DATAPATH := data/web-Google/web-Google.mtx

#
SRCS     := $(wildcard $(SRCDIR)/*.c)
OBJS     := $(patsubst $(SRCDIR)/%.c,$(OBJDIR)/%.o,$(SRCS))

# --------------------------------------------------
# Phony targets
# --------------------------------------------------
.PHONY: all sparse clean

all: sparse

sparse: $(OBJDIR)/sparse | $(OBJDIR)
	@echo "→ Running sparse"
	./$(OBJDIR)/sparse

# --------------------------------------------------
# Link
# --------------------------------------------------
$(OBJDIR)/sparse: $(OBJS) $(DATAPATH) | $(OBJDIR)
	@echo "→ Copying input data"
	cp $(DATAPATH) $(OBJDIR)/input.rb
	@echo "→ Linking $@"
	$(CC) $(CFLAGS) -o $@ $(OBJS)

# --------------------------------------------------
# Compile
# --------------------------------------------------
$(OBJDIR)/%.o: $(SRCDIR)/%.c | $(OBJDIR)
	@echo "→ Compiling $<"
	$(CC) $(CFLAGS) -c $< -o $@

# --------------------------------------------------
# Check if output directory exists
# --------------------------------------------------
$(OBJDIR):
	mkdir -p $(OBJDIR)

# --------------------------------------------------
# Clean
# --------------------------------------------------
clean:
	rm -rf $(OBJDIR)/*