# Use a lightweight Python base image
FROM python:3.9-slim-buster

# Set the working directory inside the container
WORKDIR /app

# Copy the HTML file into the container
COPY real_webvm.html .

# Create the Python server script directly in the Dockerfile
# This ensures it has the correct permissions from the start
RUN echo "import http.server" > server.py && \
    echo "import socketserver" >> server.py && \
    echo "" >> server.py && \
    echo "PORT = 8000" >> server.py && \
    echo "" >> server.py && \
    echo "class Handler(http.server.SimpleHTTPRequestHandler):" >> server.py && \
    echo "    def end_headers(self):" >> server.py && \
    echo "        self.send_header('Cross-Origin-Embedder-Policy', 'require-corp')" >> server.py && \
    echo "        self.send_header('Cross-Origin-Opener-Policy', 'same-origin')" >> server.py && \
    echo "        super().end_headers()" >> server.py && \
    echo "" >> server.py && \
    echo "with socketserver.TCPServer(('', PORT), Handler) as httpd:" >> server.py && \
    echo "    print(f\"Serving real_webvm.html at http://localhost:{PORT}\")" >> server.py && \
    echo "    httpd.serve_forever()" >> server.py

# Copy the run.sh script into the container
COPY run.sh .

# Make the run.sh script executable
RUN chmod +x run.sh

# Expose the port that the server will listen on
EXPOSE 8000

# Define the command to run when the container starts
CMD ["./run.sh"]