# ─────────────────────────────────────────────────────────────────────────────
# SmartTrip AI — Dockerfile for Hugging Face Spaces
#
# Build locally:
#   docker build -t smarttrip-ai .
#   docker run -p 7860:7860 --env-file .env smarttrip-ai
#
# Hugging Face Spaces automatically detects this file and builds the image.
# Set all API keys under Space → Settings → Variables and secrets (not here).
# ─────────────────────────────────────────────────────────────────────────────

FROM python:3.10-slim

# System dependencies required by some Python packages (e.g. Pillow, lxml)
RUN apt-get update && apt-get install -y --no-install-recommends \
        build-essential \
        curl \
    && rm -rf /var/lib/apt/lists/*

# Non-root user recommended by Hugging Face Spaces
RUN useradd -m -u 1000 appuser

WORKDIR /app

# ── Install Python dependencies ───────────────────────────────────────────────
# Copy requirements + setup files first so Docker can cache this layer
COPY --chown=appuser:appuser requirements.txt setup.py ./

RUN pip install --no-cache-dir --upgrade pip \
 && pip install --no-cache-dir -r requirements.txt

# ── Copy application source ───────────────────────────────────────────────────
COPY --chown=appuser:appuser . .

# Create writable runtime directories inside the container
# (SQLite DB goes to data/, logs go to logs/)
RUN mkdir -p data logs \
 && chown -R appuser:appuser data logs

USER appuser

# ── Expose port expected by Hugging Face Spaces ───────────────────────────────
EXPOSE 7860

# ── Run the Streamlit app ─────────────────────────────────────────────────────
CMD ["streamlit", "run", "streamlit_app.py", \
     "--server.port=7860", \
     "--server.address=0.0.0.0", \
     "--server.headless=true", \
     "--browser.gatherUsageStats=false"]