Dockerfile.render

# Multi-stage Dockerfile for Render deployment
# This Dockerfile builds both the backend API and frontend, then serves them with nginx

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

WORKDIR /app/frontend

# Copy frontend package files
COPY frontend/package*.json ./

# Install all dependencies (including devDependencies for build)
RUN npm ci

# Copy frontend source code
COPY frontend/ .

# Build the frontend
RUN npx vite build

# Stage 2: Build Backend
FROM python:3.11-slim AS backend-builder

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    tesseract-ocr \
    tesseract-ocr-eng \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend source code
COPY scripts/ ./scripts/
COPY app/ ./app/
COPY data/ ./data/

# Stage 3: Production Image
FROM python:3.11-slim

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    curl \
    tesseract-ocr \
    tesseract-ocr-eng \
    nginx \
    && rm -rf /var/lib/apt/lists/*

# Copy Python dependencies from backend builder
COPY --from=backend-builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=backend-builder /usr/local/bin /usr/local/bin

# Copy backend application
COPY --from=backend-builder /app/scripts ./scripts/
COPY --from=backend-builder /app/app ./app/
COPY --from=backend-builder /app/data ./data/

# Copy built frontend from frontend builder
COPY --from=frontend-builder /app/frontend/dist /var/www/html

# Create necessary directories
RUN mkdir -p /var/data/index /var/log/nginx

# Set environment variables for Render
ENV PYTHONPATH=/app
ENV DATA_DIR=/var/data
ENV INDEX_DIR=/var/data/index
ENV CHAT_MODEL=gpt-4o-mini
ENV EMBEDDING_MODEL=text-embedding-3-large
ENV PORT=10000

# Copy nginx configuration for production
COPY nginx.render.conf /etc/nginx/sites-available/default

# Copy startup script
COPY docker-entrypoint.render.sh .
RUN chmod +x docker-entrypoint.render.sh

# Expose the port that Render will use
EXPOSE 10000

# Use the startup script
CMD ["./docker-entrypoint.render.sh"]