# ── Stage 1: compilar frontend ───────────────────────────────────────────────
FROM node:20-slim AS frontend-builder
WORKDIR /frontend
COPY frontend/package*.json ./
RUN npm install --prefer-offline
COPY frontend/ ./
# VITE_API_BASE_URL vacío → el frontend usa URLs relativas (mismo origen)
RUN npm run build

# ── Stage 2: backend + frontend compilado ─────────────────────────────────────
FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PORT=7860

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
        git libglib2.0-0 libsm6 libxrender1 libxext6 libx11-6 libxcb1 libgl1 libgl1-mesa-dri \
    && rm -rf /var/lib/apt/lists/*

COPY backend/requirements.txt ./
RUN pip install --upgrade pip && pip install -r requirements.txt

COPY backend/ ./

# El frontend compilado va a /frontend/dist — exactamente la ruta que espera main.py
# (BASE_DIR.parent / "frontend" / "dist" = /app/../frontend/dist = /frontend/dist)
COPY --from=frontend-builder /frontend/dist /frontend/dist

RUN chmod +x entrypoint.sh

# /app/models se puede montar como volumen para cachear el modelo SAM2
VOLUME ["/app/models"]

EXPOSE 7860

ENTRYPOINT ["./entrypoint.sh"]