# Build UI
FROM node:20 AS ui-builder
WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm install
COPY . .
RUN npm run build

# Build AI
FROM python:3.10-slim AS ai-builder
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY app.py dataset.json ./

# Final image
FROM nginx:latest

# Install Python for backend and build tools for pip packages
RUN apt-get update && \
    apt-get install -y python3 python3-pip python3-venv build-essential pkg-config && \
    rm -rf /var/lib/apt/lists/*

# Copy UI build
COPY --from=ui-builder /app/dist /usr/share/nginx/html

# Copy AI app and requirements to /app BEFORE pip install
COPY --from=ai-builder /app/app.py /app/dataset.json /app/
COPY requirements.txt /app/

# Custom Nginx config for reverse proxy
COPY nginx.conf /etc/nginx/nginx.conf

# Create and activate a virtual environment, then install requirements
RUN python3 -m venv /venv
ENV PATH="/venv/bin:$PATH"
RUN pip install --no-cache-dir cython
RUN pip install --no-cache-dir -r /app/requirements.txt

# Expose port
EXPOSE 7860

# Fix Nginx cache directory permissions
RUN mkdir -p /var/cache/nginx && chmod 777 /var/cache/nginx

# Start both Nginx and Flask
CMD python /app/app.py & nginx -g 'daemon off;'