# Fresh build 2025-04-23 v13 to force rebuild
FROM ubuntu:20.04

# Set working directory
WORKDIR /app

# Set environment variables to avoid interactive prompts
ENV DEBIAN_FRONTEND=noninteractive
ENV PATH=/usr/local/bin:/usr/bin:/bin:/usr/lib/chromium-browser:$PATH
ENV BUILD_ID=2025-04-23-v13

# Create non-root user (matching Hugging Face's UID 1000)
RUN useradd -m -u 1000 -s /bin/bash user \
    && chown -R user:user /app

# Install system dependencies for Chrome and ChromeDriver
RUN apt-get update && apt-get install -y \
    wget \
    unzip \
    curl \
    python3 \
    python3-pip \
    libglib2.0-0 \
    libnss3 \
    libgconf-2-4 \
    libfontconfig1 \
    libxrender1 \
    libxtst6 \
    libxi6 \
    libgbm-dev \
    libasound2 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libpango-1.0-0 \
    libcairo2 \
    libgtk-3-0 \
    libcups2 \
    libxss1 \
    libappindicator3-1 \
    libindicator3-7 \
    libstdc++6 \
    zlib1g \
    libncurses5 \
    libx11-6 \
    libxext6 \
    libxcomposite1 \
    libxrandr2 \
    libgcc1 \
    libxkbcommon0 \
    libxdamage1 \
    libxfixes3 \
    libxcursor1 \
    libxinerama1 \
    libxxf86vm1 \
    libatk-adaptor \
    libgdk-pixbuf2.0-0 \
    xvfb \
    libdbus-1-3 \
    libdbus-glib-1-2 \
    && 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 - \
    && echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list \
    && apt-get update \
    && apt-get install -y google-chrome-stable \
    && rm -rf /var/lib/apt/lists/* \
    || (echo "Chrome installation failed" && exit 1)

# Verify Chrome installation and binary location
RUN which google-chrome || (echo "google-chrome binary not found" && exit 1)
RUN google-chrome --version || (echo "Cannot run google-chrome" && exit 1)
RUN ls -l /usr/bin/google-chrome || echo "google-chrome not in /usr/bin"

# Install ChromeDriver with debugging and fallback for Chrome 135
RUN echo "Fetching Chrome version..." \
    && CHROME_VERSION=$(google-chrome --version | grep -oP '\d+\.\d+\.\d+' || echo "Failed to get Chrome version") \
    && echo "Chrome version: $CHROME_VERSION" \
    && if [ -z "$CHROME_VERSION" ]; then \
         echo "Using fallback ChromeDriver version 135.0.7049.114" \
         && CHROMEDRIVER_VERSION="135.0.7049.114"; \
       else \
         echo "Fetching ChromeDriver version for Chrome $CHROME_VERSION..." \
         && CHROMEDRIVER_VERSION=$(curl -sS https://googlechromelabs.github.io/chrome-for-testing/last-known-good-versions-with-downloads.json | grep -oP '"version":"${CHROME_VERSION}\.[0-9]+"' | grep -oP '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -n 1 || echo "Failed to fetch ChromeDriver version") \
         && echo "ChromeDriver version: $CHROMEDRIVER_VERSION" \
         && if [ -z "$CHROMEDRIVER_VERSION" ]; then \
              echo "Using fallback ChromeDriver version 135.0.7049.114" \
              && CHROMEDRIVER_VERSION="135.0.7049.114"; \
            fi; \
       fi \
    && echo "Downloading ChromeDriver $CHROMEDRIVER_VERSION..." \
    && wget -q https://storage.googleapis.com/chrome-for-testing-public/${CHROMEDRIVER_VERSION}/linux64/chromedriver-linux64.zip \
    && echo "Unzipping ChromeDriver..." \
    && unzip chromedriver-linux64.zip \
    && echo "Moving ChromeDriver to /usr/local/bin..." \
    && mv chromedriver-linux64/chromedriver /usr/local/bin/ \
    && chmod +x /usr/local/bin/chromedriver \
    && rm chromedriver-linux64.zip \
    || (echo "ChromeDriver installation failed" && exit 1)

# Verify ChromeDriver installation
RUN which chromedriver || (echo "chromedriver binary not found" && exit 1)
RUN chromedriver --version || (echo "Cannot run chromedriver" && exit 1)
RUN ls -l /usr/local/bin/chromedriver || echo "chromedriver not in /usr/local/bin"

# Test ChromeDriver with Chrome
RUN echo "Testing ChromeDriver..." \
    && chromedriver --version \
    && google-chrome --version \
    && (xvfb-run -a google-chrome --headless=new --no-sandbox --disable-dev-shm-usage --disable-gpu --version || echo "Headless Chrome test failed")

# Clear Selenium cache to avoid outdated ChromeDriver
RUN rm -rf /home/user/.cache/selenium

# Copy requirements and install Python dependencies
COPY app/requirements.txt .
RUN pip3 install --no-cache-dir -r requirements.txt

# Copy the app code
COPY app/app.py .

# Switch to non-root user
USER user

# Expose the port Gradio will run on
EXPOSE 7860

# Health check to verify Gradio is running
HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:7860/ || exit 1

# Run the Gradio app
CMD ["python3", "app.py"]