FROM python:3.11-slim

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libpq-dev \
    curl \
    netcat-traditional \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd -m -u 1000 celery

# Set working directory
WORKDIR /app

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Debug: List files and check tasks.py
RUN ls -la /app && \
    echo "Checking tasks.py:" && \
    if [ -f /app/tasks.py ]; then \
        echo "tasks.py exists" && \
        cat /app/tasks.py; \
    else \
        echo "tasks.py does not exist"; \
    fi

# Create necessary directories and set permissions
RUN mkdir -p /app/uploads /app/static/uploads && \
    chown -R celery:celery /app

# Create startup script
RUN echo '#!/bin/sh\n\
echo "Waiting for database..."\n\
while ! nc -z db 5432; do\n\
  sleep 0.1\n\
done\n\
echo "Database is ready!"\n\
\n\
echo "Waiting for Redis..."\n\
while ! nc -z redis 6379; do\n\
  sleep 0.1\n\
done\n\
echo "Redis is ready!"\n\
\n\
echo "Running database migrations..."\n\
flask db upgrade\n\
\n\
echo "Creating admin user..."\n\
flask create-admin\n\
\n\
echo "Starting application..."\n\
exec "$@"' > /app/entrypoint.sh && \
    chmod +x /app/entrypoint.sh

# Set environment variables
ENV PYTHONPATH=/app
ENV FLASK_APP=app.py
ENV FLASK_ENV=production

# Make sure tasks.py is executable and has correct permissions
RUN chmod 644 /app/tasks.py && \
    chown celery:celery /app/tasks.py

# Switch to non-root user
USER celery

# Set entrypoint
ENTRYPOINT ["/bin/sh", "/app/entrypoint.sh"]