# ============================================================
# Mithal.space Monitor — Docker Image
# Serves the dashboard via Nginx and runs the monitor in background
# ============================================================

FROM python:3.12-slim

# Prevent Python from buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Install system deps for nginx
RUN apt-get update && \
    apt-get install -y --no-install-recommends nginx curl && \
    rm -rf /var/lib/apt/lists/*

# Remove default nginx site
RUN rm -f /etc/nginx/sites-enabled/default

# Set working directory
WORKDIR /app

# Install Python dependencies first (layer caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application files
COPY monitor.py .
COPY dashboard.html /usr/share/nginx/html/index.html
COPY style.css /usr/share/nginx/html/
COPY script.js /usr/share/nginx/html/
COPY metrics.json /usr/share/nginx/html/metrics.json
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Create log directory
RUN mkdir -p /var/log/nginx && \
    touch /app/monitor.log

# Expose port 80
EXPOSE 80

# Start script: run monitor in background, nginx in foreground
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh"]