.PHONY: build test run clean rebuild

CC ?= gcc
PKG_CONFIG ?= pkg-config

BUILD_DIR := build
OBJ_DIR := $(BUILD_DIR)/obj
BIN := $(BUILD_DIR)/lemacs
RUN_FILE ?=

SRC := \
	src/main.c \
	src/core/buffer.c \
	src/core/editor.c \
	src/core/lua_bridge.c

OBJ := $(SRC:src/%.c=$(OBJ_DIR)/%.o)
DEP := $(OBJ:.o=.d)

CPPFLAGS += -Isrc -DLEMACS_RUNTIME_INIT=\"$(CURDIR)/runtime/init.lua\"
CFLAGS += -std=c99 -Wall -Wextra -Wpedantic -O2 -MMD -MP
LDLIBS += $(shell $(PKG_CONFIG) --libs raylib lua5.4 fontconfig) -lm
LDFLAGS +=

build: $(BIN)

$(BIN): $(OBJ)
	mkdir -p "$(BUILD_DIR)"
	$(CC) $(OBJ) $(LDFLAGS) $(LDLIBS) -o "$@"

$(OBJ_DIR)/%.o: src/%.c
	mkdir -p "$(dir $@)"
	$(CC) $(CPPFLAGS) $(CFLAGS) $(shell $(PKG_CONFIG) --cflags raylib lua5.4 fontconfig) -c "$<" -o "$@"

test: build
	printf '%s\n' 'No test suite is configured yet.'

run: build
	"./$(BIN)" $(RUN_FILE)

clean:
	rm -rf "$(BUILD_DIR)"

rebuild: clean build

-include $(DEP)