# --- Options de Build ---
# Valeurs possibles : causeway (recommandé), dos4g (classique)
EXTENDER = causeway
STACK_SIZE = 64k

WATCOM_WIN  = D:\WatCom
WATCOM_WSL  = /mnt/d/WatCom
NASM_WIN    = /mnt/c/Program\ Files/NASM/nasm.exe

# --- Configuration Dynamique du Linker ---
ifeq ($(EXTENDER), causeway)
    # Configuration optimisée pour CauseWay
    L_SYS   = system causeway
    L_OPTS  = option osname='CauseWay' \
              option stub=$(WATCOM_WIN)/binw/cwstub.exe \
              option stack=$(STACK_SIZE)
else
    # Configuration classique pour DOS/4GW
    L_SYS   = system dos4g
    L_OPTS  = option stack=$(STACK_SIZE)
endif

# Binaires Windows exécutés par WSL
CC      = $(WATCOM_WSL)/binnt64/wcc386.exe
CXX     = $(WATCOM_WSL)/binnt64/wpp386.exe
AS      = $(NASM_WIN)
LINK    = $(WATCOM_WSL)/binnt64/wlink.exe

# --- Flags de Performance ---
# On utilise wslpath pour que les outils Windows comprennent les chemins Linux
INC_FLAGS = -i="$(WATCOM_WIN)\h" -i="$(WATCOM_WIN)\CustomH"
CFLAGS    = -bt=dos -6s -fp6 -ox  -od -oh -ot -ei -zp8 $(INC_FLAGS)
LFLAGS    = $(L_SYS) $(L_OPTS) \
			libpath "$(WATCOM_WIN)\lib386" \
			libpath "$(WATCOM_WIN)\lib386\dos" \
			libpath "$(WATCOM_WIN)\CustomLib"

# --- Détection des Sources ---
# On force le shell à trouver les fichiers
SRCS_CPP := $(shell find src -name "*.cpp")
SRCS_C   := $(shell find src -name "*.c")
SRCS_ASM := $(shell find src -name "*.asm")

# Création de la liste des objets (src/main/main.cpp -> build/main.obj)
OBJS := $(patsubst src/%.cpp, build/%.obj, $(SRCS_CPP)) \
        $(patsubst src/%.c, build/%.obj, $(SRCS_C)) \
        $(patsubst src/%.asm, build/%.obj, $(SRCS_ASM))

# --- Règles ---
all: prepare build/app.exe

prepare:
	@mkdir -p build
	@# Crée les sous-dossiers dans build pour correspondre à src
	@$(foreach dir, $(sort $(dir $(SRCS_CPP) $(SRCS_C) $(SRCS_ASM))), mkdir -p $(subst src,build,$(dir));)

build/%.obj: src/%.cpp
	@mkdir -p $(dir $@)
	$(CXX) $(CFLAGS) $< -fo='$(shell wslpath -w $@)'
	@rm -f $*.err

build/%.obj: src/%.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $< -fo='$(shell wslpath -w $@)'
	@rm -f $*.err

build/%.obj: src/%.asm
	@mkdir -p $(dir $@)
	$(AS) -f obj $< -o '$(shell wslpath -w $@)'

# --- PARTIE LINK CORRIGÉE ---
build/app.exe: $(OBJS) MakeFile
	@if [ -z "$(OBJS)" ]; then echo "ERREUR: Aucun objet trouvé!"; exit 1; fi
	@echo "Generating linker file: build/link.lnk"
	@printf '%s\n' '$(LFLAGS)' > build/link.lnk
	@printf 'name %s\n' '$(shell wslpath -w $@)' >> build/link.lnk
	@$(foreach f,$(OBJS),printf 'file %s\n' '$(shell wslpath -w $f)' >> build/link.lnk;)
	@echo "Linking..."
	$(LINK) @build/link.lnk

clean:
	rm -rf build
	# Nettoyage des logs d'erreurs
	rm -f *.err src/**/*.err

cleanall:
	$(MAKE) clean
	$(MAKE) all