FROM python:3.9-slim

# Install necessary system dependencies and gnupg
RUN apt-get update && apt-get install -y \
    libgl1-mesa-glx \
    libglib2.0-0 \
    wget \
    unzip \
    curl \
    ca-certificates \
    gnupg \
    fonts-liberation \
    libnss3 \
    libxss1 \
    libappindicator1 \
    libgbm-dev \
    libgtk-3-0 \
    chromium \
    && rm -rf /var/lib/apt/lists/*

# Install Google Chrome
RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
RUN apt-get -y update
RUN apt-get install -y google-chrome-stable

# Install ChromeDriver
RUN apt-get install -yqq unzip
RUN wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip
RUN unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/

# Set display port to avoid crash
ENV DISPLAY=:99

# Install Selenium
RUN pip install selenium==3.8.0

WORKDIR /code
RUN mkdir -p /code/uploads && chmod 755 /code/uploads

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

# Add and use a non-root user
RUN useradd -ms /bin/sh myuser
RUN chown -R myuser:myuser /code
USER myuser

# Set environment variables for Chrome
ENV CHROME_BIN=/usr/bin/chromium
ENV CHROME_DRIVER=/usr/local/bin/chromedriver

# Default command to run the application
CMD ["python", "app.py"]