# ============================================================
# VoxPopuli - Dockerfile
# Microservicios FastAPI: Usuarios (8000), Reportes (8001),
# Notificaciones (8002), Moderación (8003), Métricas (8004)
# ============================================================

# --- Stage 1: Builder ---
FROM python:3.11-slim AS builder

WORKDIR /build

# Instalar dependencias del sistema necesarias para compilación
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libffi-dev \
    libssl-dev \
    default-libmysqlclient-dev \
    pkg-config \
    && rm -rf /var/lib/apt/lists/*

# Copiar e instalar dependencias Python en un directorio aislado
COPY requirements.txt .
RUN pip install --upgrade pip && \
    pip install --prefix=/install --no-cache-dir -r requirements.txt


# --- Stage 2: Runtime ---
FROM python:3.11-slim

LABEL maintainer="Hokzaap S. de R.L. de C.V."
LABEL description="VoxPopuli - Infraestructura de Voz Ciudadana"

WORKDIR /app

# Instalar únicamente librerías de runtime
RUN apt-get update && apt-get install -y --no-install-recommends \
    default-libmysqlclient-dev \
    && rm -rf /var/lib/apt/lists/*

RUN mkdir -p /app/logs/

# Copiar paquetes instalados desde el builder
COPY --from=builder /install /usr/local

# Copiar código fuente
COPY src/ ./src/

# Variables de entorno con valores por defecto (sobreescribibles via .env o compose)
ENV HOST=0.0.0.0 \
    LOG_LEVEL=info \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONPATH=/app/src

# Puertos expuestos por los cinco microservicios
EXPOSE 8000 8001 8002 8003 8004

# Healthcheck básico contra la API de Usuarios
HEALTHCHECK --interval=30s --timeout=10s --start-period=20s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/')" || exit 1

# Punto de entrada
CMD ["python", "src/main.py"]