FROM python:3.12

# Prevents Python from writing pyc files to disk
ENV PYTHONDONTWRITEBYTECODE=1
#Prevents Python from buffering stdout and stderr
ENV PYTHONUNBUFFERED=1

# User
RUN useradd -m -r appuser && \
   mkdir /opt/app && \
   chown -R appuser /opt/app

WORKDIR /opt/app

# Copy the Django project and install dependencies
COPY requirements.txt  /opt/app/
# run this command to install all dependencies 
RUN pip install --no-cache-dir -r requirements.txt

COPY --chown=appuser:appuser . /opt/app/

RUN chmod -R 755 /opt/app
RUN chown -R appuser:appuser /opt/app
USER appuser

# Initialization script
RUN echo '#!/bin/bash' > /opt/app/initialize.sh && \
   echo 'if [ "${INITIALIZE_DB}" = false ]; then' >> /opt/app/initialize.sh && \
   echo 'echo "Initialization not required"' >> /opt/app/initialize.sh && \
   echo 'else' >> /opt/app/initialize.sh && \
   echo 'echo "Initializating database"' >> /opt/app/initialize.sh && \
   echo 'python db.py --initialize_tables --initialize_data' >> /opt/app/initialize.sh && \
   echo 'python manage.py makemigrations fetcher; python manage.py migrate --fake-initial' >> /opt/app/initialize.sh && \
   echo 'python manage.py createsuperuser --noinput' >> /opt/app/initialize.sh && \
   echo 'python manage.py collectstatic --no-input' >> /opt/app/initialize.sh && \
   echo 'python manage.py import --filename scheduled_tasks.json' >> /opt/app/initialize.sh && \
   echo 'fi' >> /opt/app/initialize.sh && \
   chmod +x /opt/app/initialize.sh

# Serving script
RUN echo '#!/bin/bash' > /opt/app/run.sh && \
   # Prod mode:
   echo 'gunicorn core.wsgi:application --bind 0.0.0.0:8000 & python manage.py rqworker high default low' >> /opt/app/run.sh && \
   # Dev mode:
   #echo 'gunicorn core.wsgi:application --reload --bind 0.0.0.0:8000 & python manage.py rqworker high default low' >> /opt/app/run.sh && \
   chmod +x /opt/app/run.sh

# Run Django’s server & workers
CMD ["sh", "-c", "/opt/app/initialize.sh && /opt/app/run.sh"]