# Project configuration
EXECUTABLE_NAME   = joomer-bella-basic-renderer
PLATFORM          = $(shell uname)
BUILD_TYPE        ?= release# Default to release build if not specified

#STB_PATH = $(HOME)/workdir/stb
LINUX_LIB_EXT          = so

# Version configuration (can be overridden)
#DPP_VERSION       ?= $(shell find ../DPP/build/library -name "libdpp.so.*.*.*" -type f | head -1 | sed 's/.*libdpp\.so\.//')
BELLA_PATH          = $(HOME)/learndir/bella_engine_sdk
#BELLA_BUILD_DIR      = $(BELLA_PATH)/build/library
LIB_PATHS          = $(BELLA_PATH)/lib
INC_DIRS = -Iinclude -I$(BELLA_PATH)/src
#endif

#DPP_VERSION       := $(or $(DPP_VERSION),10.1.4)# Fallback version if auto-detection fails
#DPP_LINUX_LIB_VERSION_FILE	= libdpp.$(LINUX_LIB_EXT).$(DPP_VERSION)
BELLA_LIB_NAME         = libdpp.$(LINUX_LIB_EXT)

# Common paths
OBJ_DIR           = obj/$(PLATFORM)/$(BUILD_TYPE)
BIN_DIR           = bin/$(PLATFORM)/$(BUILD_TYPE)
OUTPUT_FILE       = $(BIN_DIR)/$(EXECUTABLE_NAME)

CXX                = g++
CXX_FLAGS          = $(COMMON_FLAGS) -std=c++17 -Wall -g $(INC_DIRS)

# Build type specific flags
ifeq ($(BUILD_TYPE), debug)
	CPP_DEFINES = -D_DEBUG -DDL_USE_SHARED
	COMMON_FLAGS = $(ARCH_FLAGS) $(INCLUDE_PATHS)
	COMP_FLAGS = -g -O0 -std=c++17 -Wall
	LINK_FLAGS = -fvisibility=hidden
else
	CPP_DEFINES = -DNDEBUG=1 -DDL_USE_SHARED
	COMMON_FLAGS = $(ARCH_FLAGS) $(INCLUDE_PATHS)
	COMP_FLAGS = -O3 -std=c++17 -Wall
	LINK_FLAGS = -fvisibility=hidden
endif

# Language-specific flags
#C_FLAGS            = $(COMMON_FLAGS) -std=c17
#CXX_FLAGS          = $(COMMON_FLAGS) -std=c++17 -Wall -g $(INC_DIRS)
CXX 			   = g++
CXX_FLAGS          = $(COMMON_FLAGS) $(INC_DIRS)
LINK_FLAGS = -fvisibility=hidden
BELLA_LIB_FLAGS    = -L$(LIB_PATHS) -Wl,-rpath,$(LIB_PATHS) -lbella_engine_sdk

# Linker directive flags (L for library search path, l for library)
# Need to link against the D++ library and pthread (common for C++ applications with threading)
LDFLAGS            = $(BELLA_LIB_FLAGS) #-L$(LIB_PATHS) -ldpp -lpthread -Wl,-rpath='$$ORIGIN' # search for lib in the same place as the executable file

# List of object files for your executable
# We've changed this back to use joomer-bella-basic-renderer-bot.o as the source of the executable
OBJECTS = $(OBJ_DIR)/joomer-bella-basic-renderer.o

$(OBJ_DIR)/%.o: %.cpp
	@echo "Compiling $< -> $@"
	@mkdir -p $(@D) # Ensure the output binary directory exists (e.g., bin/Linux/release/)
	$(CXX) -c $(CPP_DEFINES) $(COMP_FLAGS) $(INC_DIRS) $< -o $@
	
# --- Main Target ---
# 'all' is the default target that builds your executable
all: $(OUTPUT_FILE)		
	@echo "BELLA_PATH: $(BELLA_PATH)"
	@echo "Build complete."
	
	

# Rule to link the executable:
# It depends on the object files and uses CXX to link them with specified libraries.
$(OUTPUT_FILE): $(OBJECTS)
	@echo "Linking $(OUTPUT_FILE)..."	
	@mkdir -p $(@D)		
	$(CXX) -o $@ $(OBJECTS) $(LDFLAGS) $(LINK_FLAGS)
	@echo "BELLA_PATH: "$(BELLA_PATH)
	@echo "Build complete."	
	

# --- Clean Target ---
# Removes all generated build files and directories
clean:
	@echo "Cleaning build directory..."
	$(RM) -r $(BIN_DIR)
	$(RM) -r $(OBJ_DIR)

# .PHONY specifies targets that are not actual files to prevent conflicts with file names
.PHONY: all clean