FROM python:3.10-slim

# Environment variables to optimize Python
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set working directory
WORKDIR /app

# Install dependencies, including those required for Google Chrome
RUN apt-get update && apt-get install -y \
    wget \
    curl \
    unzip \
    gnupg \
    ca-certificates \
    fonts-liberation \
    libappindicator3-1 \
    libasound2 \
    libatk-bridge2.0-0 \
    libatk1.0-0 \
    libcups2 \
    libdbus-1-3 \
    libgdk-pixbuf2.0-0 \
    libnspr4 \
    libnss3 \
    libx11-xcb1 \
    libxcomposite1 \
    libxdamage1 \
    libxrandr2 \
    xdg-utils \
    libgbm1 \
    libvulkan1 \
    procps \
    --no-install-recommends && \
    rm -rf /var/lib/apt/lists/*

# Install Google Chrome (pinned to 136.0.7103.113)
RUN wget -q https://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_136.0.7103.113-1_amd64.deb && \
    dpkg -i google-chrome-stable_136.0.7103.113-1_amd64.deb && \
    apt-get -fy install && \
    rm google-chrome-stable_136.0.7103.113-1_amd64.deb

# Install ChromeDriver (pinned to 136.0.7103.113)
RUN wget -q -O /tmp/chromedriver.zip https://edgedl.me.gvt1.com/edgedl/chrome/chrome-for-testing/136.0.7103.113/linux64/chromedriver-linux64.zip && \
    unzip /tmp/chromedriver.zip chromedriver-linux64/chromedriver -d /usr/local/bin/ && \
    mv /usr/local/bin/chromedriver-linux64/chromedriver /usr/local/bin/chromedriver && \
    chmod +x /usr/local/bin/chromedriver && \
    rm -rf /tmp/chromedriver.zip /usr/local/bin/chromedriver-linux64

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

# Copy application code
COPY . /app

# Expose port for FastAPI
EXPOSE 7860

# Ensure ChromeDriver is in PATH
ENV PATH="/usr/local/bin:$PATH"

# Run FastAPI application with single worker
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]