VENV ?= .venv
PY := $(VENV)/bin/python
PIP := $(PY) -m pip
UV := uv
CONFIG ?= config.toml

# detect uv, fallback to pip
HAS_UV := $(shell command -v $(UV) >/dev/null 2>&1 && echo 1 || echo 0)
ifeq ($(HAS_UV),1)
  VENV_CREATE = $(UV) venv $(VENV) --python 3.11 2>/dev/null || $(UV) venv $(VENV)
  PIP_INSTALL = $(UV) pip install --python $(PY)
else
  VENV_CREATE = python3 -m venv $(VENV)
  PIP_INSTALL = $(PIP) install
endif

.PHONY: install install-cpu install-rocm install-cuda extract ast clean help

help:
	@echo "Targets:"
	@echo "  make install        # auto-detect GPU (ROCm>CUDA>CPU) via rocm-smi/nvidia-smi/torch, create venv, install deps"
	@echo "  make install-cpu    # force CPU torch"
	@echo "  make install-rocm   # force ROCm torch (RX 7900 XTX gfx1100)"
	@echo "  make install-cuda   # force CUDA torch"
	@echo "  make extract        # run extract.py (uses config.toml if present)"
	@echo "  make ast            # run sync_audio_test.py (audio_sync_test, PyQtGraph GUI)"
	@echo "  make clean"

install:
	@if [ ! -d $(VENV) ]; then echo "=> creating venv $(VENV)"; $(VENV_CREATE); else echo "=> venv exists $(VENV)"; fi
	@echo "=> detecting GPU..."
	@HAS_ROCM=0; HAS_CUDA=0; \
	if command -v rocm-smi >/dev/null 2>&1 && [ -c /dev/kfd ] && lspci 2>/dev/null | grep -qi amd; then HAS_ROCM=1; fi; \
	if command -v nvidia-smi >/dev/null 2>&1; then HAS_CUDA=1; fi; \
	if [ $$HAS_ROCM -eq 1 ]; then \
		echo "   ROCm detected (AMD) -> torch rocm6.2"; \
		$(PIP_INSTALL) --upgrade pip; \
		$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/rocm6.2; \
	elif [ $$HAS_CUDA -eq 1 ]; then \
		echo "   CUDA detected (NVIDIA) -> torch cu121"; \
		$(PIP_INSTALL) --upgrade pip; \
		$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/cu121; \
	else \
		echo "   No GPU -> torch cpu"; \
		$(PIP_INSTALL) --upgrade pip; \
		$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/cpu; \
	fi
	@echo "=> installing common deps..."
	@$(PIP_INSTALL) soundfile scipy numpy pyqtgraph PyQt6
	@echo "=> optional sounddevice (audio playback, volume slider)..."
	@$(PIP_INSTALL) sounddevice || echo "   sounddevice optional failed (PortAudio missing) -> playback disabled"
	@$(PY) -c "import torch, sys; print(f'torch {torch.__version__} cuda_available={torch.cuda.is_available()}', end=''); print(f' device={torch.cuda.get_device_name(0)}' if torch.cuda.is_available() else ' (cpu)')"
	@echo "=> done. Activate: source $(VENV)/bin/activate"

install-cpu:
	@if [ ! -d $(VENV) ]; then $(VENV_CREATE); fi
	$(PIP_INSTALL) --upgrade pip
	$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/cpu
	$(PIP_INSTALL) soundfile scipy numpy pyqtgraph PyQt6 sounddevice || true
	$(PY) -c "import torch; print(torch.__version__, torch.cuda.is_available())"

install-rocm:
	@if [ ! -d $(VENV) ]; then $(VENV_CREATE); fi
	$(PIP_INSTALL) --upgrade pip
	$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/rocm6.2
	$(PIP_INSTALL) soundfile scipy numpy pyqtgraph PyQt6 sounddevice || true
	$(PY) -c "import torch; print(torch.__version__, torch.cuda.is_available(), torch.cuda.get_device_name(0) if torch.cuda.is_available() else '')"

install-cuda:
	@if [ ! -d $(VENV) ]; then $(VENV_CREATE); fi
	$(PIP_INSTALL) --upgrade pip
	$(PIP_INSTALL) torch torchaudio --index-url https://download.pytorch.org/whl/cu121
	$(PIP_INSTALL) soundfile scipy numpy pyqtgraph PyQt6 sounddevice || true
	$(PY) -c "import torch; print(torch.__version__, torch.cuda.is_available(), torch.cuda.get_device_name(0) if torch.cuda.is_available() else '')"

extract:
	@if [ -x $(PY) ]; then $(PY) extract.py; else python3 extract.py; fi

ast:
	@if [ -x $(PY) ]; then $(PY) sync_audio_test.py --config $(CONFIG); else python3 sync_audio_test.py --config $(CONFIG); fi

clean:
	rm -rf $(VENV) __pycache__ .pytest_cache