FROM {{ NEXTCLOUD_WHITEBOARD_IMAGE }}:{{ NEXTCLOUD_WHITEBOARD_VERSION }}

# Temporarily switch to root so we can install packages
USER 0

# Install Chromium, ffmpeg, fonts, and runtime libraries for headless operation on Alpine
RUN apk add --no-cache \
      chromium \
      ffmpeg \
      nss \
      freetype \
      harfbuzz \
      ttf-dejavu \
      ttf-liberation \
      udev \
      ca-certificates \
    && update-ca-certificates

# Ensure a consistent Chromium binary path
RUN if [ -x /usr/bin/chromium-browser ]; then ln -sf /usr/bin/chromium-browser /usr/bin/chromium; fi

# Environment variables used by Puppeteer
ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium \
    PUPPETEER_SKIP_DOWNLOAD=true

# Switch back to the original non-root user (nobody)
USER 65534