FROM python:3.11-slim

WORKDIR /app

# Keeps logs instant and prevents Docker from writing unnecessary .pyc files
ENV DEBIAN_FRONTEND=noninteractive \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

# Installs timezone data cleanly so the scheduler doesn't break
RUN apt-get update && \
    apt-get install -y tzdata && \
    ln -fs /usr/share/zoneinfo/UTC /etc/localtime && \
    dpkg-reconfigure -f noninteractive tzdata && \
    rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

# Upgrades pip and installs everything using pre-compiled binaries for maximum speed
RUN pip install --upgrade pip && \
    pip install --no-cache-dir --prefer-binary -r requirements.txt

COPY . .

# Boots the app
CMD ["python", "app.py"]