# Stage 1: Build Svelte frontend
FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# Stage 2: Python runtime backend
FROM python:3.10-slim AS backend-runner
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Download latest official yt-dlp to ensure subscription scrapers do not break
RUN curl -L https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o /usr/local/bin/yt-dlp && \
    chmod a+rx /usr/local/bin/yt-dlp

# Install python packages
COPY backend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy built static frontend
COPY --from=frontend-builder /app/frontend/dist ./frontend/dist

# Copy Python backend
COPY backend/ ./backend

# Directory setups for mounts
ENV DB_DIR=/app/data
ENV COOKIES_PATH=/app/config/cookies.txt
ENV PYTHONUNBUFFERED=1

EXPOSE 8000

CMD ["python", "backend/main.py"]