# HuggingFace Space — Unified Dockerfile
#
# Combines all 3 services (encoder + api + frontend) into one container.
# HuggingFace Spaces only exposes port 7860 and doesn't support docker-compose.
#
# Architecture inside this container:
#   supervisord manages 3 processes:
#     - encoder (uvicorn on port 8001) — ONNX CLIP inference
#     - api     (uvicorn on port 8000) — FAISS search + Whisper
#     - nginx   (on port 7860)         — serves frontend + proxies /api → 8000
#
# On startup, start.sh downloads models + embeddings from HuggingFace Hub.

# ── Stage 1: Build React frontend ─────────────────────────────────────────
FROM node:18-alpine AS frontend-builder

WORKDIR /app/frontend
COPY services/frontend/package.json services/frontend/package-lock.json* ./
RUN npm ci
ARG CACHEBUST=1
COPY services/frontend/ .

# API is proxied via nginx at /api on port 7860
ARG VITE_API_URL=""
ENV VITE_API_URL=$VITE_API_URL
RUN npm run build

# ── Stage 2: Main runtime image ────────────────────────────────────────────
FROM python:3.11-slim

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    nginx \
    supervisor \
    ffmpeg \
    git \
    gcc \
    g++ \
    libgomp1 \
    wget \
    && rm -rf /var/lib/apt/lists/*

# ── Install Python dependencies ────────────────────────────────────────────
COPY services/encoder/requirements.txt /tmp/encoder-requirements.txt
COPY services/api/requirements.txt /tmp/api-requirements.txt

RUN pip install --no-cache-dir --default-timeout=1200 \
    -r /tmp/encoder-requirements.txt \
    -r /tmp/api-requirements.txt \
    huggingface_hub

# ── Copy application code ──────────────────────────────────────────────────
COPY services/encoder/main.py /app/encoder/main.py
COPY services/api/main.py /app/api/main.py

# ── Copy compiled frontend ─────────────────────────────────────────────────
ARG CACHEBUST=1
COPY --from=frontend-builder /app/frontend/dist /usr/share/nginx/html

# ── Nginx config ───────────────────────────────────────────────────────────
COPY nginx.conf /etc/nginx/conf.d/default.conf
RUN rm -f /etc/nginx/sites-enabled/default

# ── Supervisord config ─────────────────────────────────────────────────────
COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf

# ── Startup script ─────────────────────────────────────────────────────────
COPY start.sh /start.sh
RUN chmod +x /start.sh

# ── Create required directories ────────────────────────────────────────────
RUN mkdir -p /app/models /app/embeddings /app/images /app/data /var/log/supervisor

# HuggingFace Spaces runs as non-root user (uid 1000)
RUN chown -R 1000:1000 /app /var/log/supervisor /var/lib/nginx /var/log/nginx \
    && chmod -R 755 /app

EXPOSE 7860

CMD ["/start.sh"]