FROM python:3.11-slim

WORKDIR /app

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    STREAMLIT_SERVER_PORT=3000 \
    STREAMLIT_SERVER_ADDRESS=0.0.0.0 \
    STREAMLIT_SERVER_HEADLESS=true \
    STREAMLIT_BROWSER_GATHER_USAGE_STATS=false \
    TIMEZONE=America/Sao_Paulo \
    TZ=America/Sao_Paulo

RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    tzdata \
    && rm -rf /var/lib/apt/lists/*

RUN python -m pip install --no-cache-dir --upgrade pip

# Copia apenas o código necessário da aplicação.
COPY app.py monitor_logic.py ./

# Dependências fixadas diretamente para evitar falha de shell com operadores >=.
RUN python -m pip install --no-cache-dir \
    "streamlit>=1.28.0" \
    "requests>=2.31.0" \
    "python-dotenv>=1.0.0" \
    "APScheduler>=3.10.0" \
    "pandas>=2.0.0" \
    "pytz>=2023.3"

EXPOSE 8501

HEALTHCHECK --interval=30s --timeout=10s --start-period=20s --retries=3 \
  CMD curl --fail "http://localhost:${STREAMLIT_SERVER_PORT}/_stcore/health" || exit 1

CMD ["sh", "-c", "streamlit run app.py --server.port=${STREAMLIT_SERVER_PORT} --server.address=${STREAMLIT_SERVER_ADDRESS} --server.headless=${STREAMLIT_SERVER_HEADLESS} --browser.gatherUsageStats=${STREAMLIT_BROWSER_GATHER_USAGE_STATS}"]