FROM codercom/code-server:latest

USER root

# Set environment variables
ENV DEFAULT_WORKSPACE=/workspace
# Use the existing coder user from base image instead of non-existent 'code' user
ENV DOCKER_USER=coder

# Define persistent volumes for /home and /workspace
VOLUME ["/home", "/workspace"]

# Layer 0: Base system update (foundation layer)
RUN apt-get update && \
    apt-get upgrade -y

# Layer 1: Docker repository setup (changes rarely)
RUN apt-get install -y --no-install-recommends \
        ca-certificates \
        gnupg \
        lsb-release && \
    # Add Docker's official GPG key
    install -m 0755 -d /etc/apt/keyrings && \
    curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc && \
    chmod a+r /etc/apt/keyrings/docker.asc && \
    # Add Docker repository
    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
    $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
    tee /etc/apt/sources.list.d/docker.list > /dev/null && \
    apt-get update

# Layer 2: Docker installation (changes when Docker versions update)
RUN apt-get install -y --no-install-recommends \
        docker-ce \
        docker-ce-cli \
        containerd.io \
        docker-buildx-plugin \
        docker-compose-plugin && \
    # Add coder user to docker group for Docker-in-Docker
    usermod -aG docker coder

# Layer 3: Homebrew prerequisites (brew.sh requirements)
RUN apt-get install -y --no-install-recommends \
        sudo \
        build-essential \
        procps \
        curl \
        file \
        git

# Layer 4: Code-server entrypoint (always fetch fresh during build)
RUN curl -fsSL -o /usr/bin/entrypoint-official.sh \
        https://raw.githubusercontent.com/coder/code-server/main/ci/release-image/entrypoint.sh && \
    chmod +x /usr/bin/entrypoint-official.sh

# Copy our custom entrypoint that chainloads the official one
COPY entrypoint.sh /usr/bin/entrypoint.sh
RUN chmod +x /usr/bin/entrypoint.sh

# Set required environment variables for code-server compatibility
ENV ENTRYPOINTD=/home/coder/entrypoint.d
ENV USER=coder
ENV HOME=/home/coder

# Layer 5: Homebrew official requirements for Debian/Ubuntu
RUN apt-get install -y --no-install-recommends \
    sudo \
    build-essential \
    procps \
    curl \
    file \
    git

# Final cleanup: Remove package lists and temporary files
RUN apt-get clean && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

ENTRYPOINT ["/usr/bin/entrypoint.sh", "--bind-addr", "0.0.0.0:8080", "/workspace"]