# Multi-stage Dockerfile for Hugging Face Spaces
# This combines both frontend and backend into a single container

# Stage 1: Build frontend
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm ci
COPY frontend/ ./
RUN npm run build

# Stage 2: Setup backend with built frontend
FROM python:3.11-slim

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    nginx \
    supervisor \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Copy and install backend requirements
COPY backend/requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY backend/ ./backend/

# Copy built frontend to nginx directory
COPY --from=frontend-builder /app/frontend/dist /usr/share/nginx/html

# Create nginx configuration for Hugging Face Spaces
RUN echo 'server { \n\
    listen 7860; \n\
    server_name localhost; \n\
    \n\
    location / { \n\
        root /usr/share/nginx/html; \n\
        try_files $uri $uri/ /index.html; \n\
    } \n\
    \n\
    location /api { \n\
        proxy_pass http://127.0.0.1:8000; \n\
        proxy_http_version 1.1; \n\
        proxy_set_header Upgrade $http_upgrade; \n\
        proxy_set_header Connection "upgrade"; \n\
        proxy_set_header Host $host; \n\
        proxy_set_header X-Real-IP $remote_addr; \n\
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; \n\
        proxy_set_header X-Forwarded-Proto $scheme; \n\
    } \n\
}' > /etc/nginx/sites-available/default

# Create supervisor configuration
RUN echo '[supervisord] \n\
nodaemon=true \n\
\n\
[program:backend] \n\
command=python -m uvicorn backend.app.main:app --host 0.0.0.0 --port 8000 \n\
directory=/app \n\
autostart=true \n\
autorestart=true \n\
redirect_stderr=true \n\
stdout_logfile=/dev/stdout \n\
stdout_logfile_maxbytes=0 \n\
\n\
[program:nginx] \n\
command=nginx -g "daemon off;" \n\
autostart=true \n\
autorestart=true \n\
redirect_stderr=true \n\
stdout_logfile=/dev/stdout \n\
stdout_logfile_maxbytes=0' > /etc/supervisor/conf.d/supervisord.conf

# Create data directory for SQLite
RUN mkdir -p /app/data

# Hugging Face Spaces expects port 7860
EXPOSE 7860

# Start both services with supervisor
CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]