# syntax=docker/dockerfile:1
FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    CHROMA_DB_PATH=/data/chroma \
    CACHE_ROOT=/data/cache \
    HOME=/data \
    POSTHOG_DISABLED=true \
    CHROMA_TELEMETRY_DISABLED=true \
    HF_HOME=/data/cache/hf \
    TRANSFORMERS_CACHE=/data/cache/transformers \
    SENTENCE_TRANSFORMERS_HOME=/data/cache/sentence-transformers \
    XDG_CACHE_HOME=/data/cache

# System deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    curl \
  && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Ensure writable paths for Chroma and model caches
RUN mkdir -p "$CHROMA_DB_PATH" "$CACHE_ROOT" "$HF_HOME" "$TRANSFORMERS_CACHE" "$SENTENCE_TRANSFORMERS_HOME" "$HOME/.cache" "$HOME/.cache/chroma" \
    && chmod -R 777 "$CHROMA_DB_PATH" "$CACHE_ROOT" "$HOME/.cache"

# Copy requirements first for better caching
COPY requirements.txt ./
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy application code
COPY . .

# Expose port (HF Spaces typically uses 7860/8000)
EXPOSE 7860

# Default envs (GOOGLE_API_KEY must be provided at runtime)
ENV PORT=7860

# Start the API
CMD ["uvicorn", "api:app", "--host", "0.0.0.0", "--port", "7860"]