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# ┃ 🐳 Dockerfile: Multi-Stage Build for Python + SSH App /(dev)  ┃
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# ──────────────── Stage 1: Base ────────────────
# Base image using Debian Bullseye
FROM debian:bullseye as base

# Suppress interactive prompts during package installation
ENV DEBIAN_FRONTEND=noninteractive

# Install core dependencies:
# - Python 3 and pip
# - OpenSSH server for remote access
# - sudo for privilege escalation
RUN apt-get update && \
    apt-get install -y \
    python3 \
    python3-pip \
    openssh-server \
    curl && \
    yq && \
    mkdir /var/run/sshd && \
    apt-get clean

# Create config directory for app (can be used by dev/prod stages)
RUN mkdir -p /etc/app/config

# ──────────────── Stage 2: Dev ────────────────
# Development stage inherits from base
FROM base AS dev



# Install debugging tools (e.g. debugpy for remote debugging)
RUN echo "Installing debug tools..." && \
    pip install debugpy


# Set working directory
WORKDIR /app

# Install Python dependencies from requirements.txt
COPY app/requirements.txt requirements.txt

# This allows caching of dependencies even if app code is mounted
RUN pip install --no-cache-dir -r requirements.txt

EXPOSE 5678


# runtime environment
ENV CONFIGURATION=Debug
ENV DEBUG=True
ENV SSH_SERVER_ENABLED=False

# Default command for dev container
CMD ["python3","-u", "/app/main.py"]



# ──────────────── Optional: User & SSH Setup ────────────────
# Uncomment below to create a non-root user and configure SSH access

# Create a non-root user with sudo privileges
# RUN useradd -m -s /bin/bash devuser && \
#     echo "devuser:devpass" | chpasswd && \
#     usermod -aG sudo devuser

# Configure SSH server to allow password login and specific users
# RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin no/' /etc/ssh/sshd_config && \
#     sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config && \
#     echo "AllowUsers devuser" >> /etc/ssh/sshd_config

# Expose SSH port