FROM python:3.11-slim

ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PORT=8000

WORKDIR /app

# System packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    curl \
    tar \
    ffmpeg \
    git \
    build-essential \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Python dependencies
# Includes Groq's transcription client from requirements.txt
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# App files
COPY . .

# Install Piper
RUN mkdir -p /app/piper \
    && curl -L "https://github.com/rhasspy/piper/releases/latest/download/piper_linux_x86_64.tar.gz" \
    -o /tmp/piper.tar.gz \
    && tar -xzf /tmp/piper.tar.gz -C /app/piper --strip-components=1 \
    && chmod +x /app/piper/piper \
    && rm -f /tmp/piper.tar.gz

# Download Urdu voice model
RUN curl -L \
    "https://huggingface.co/IhorShevchuk/piper-voice-ur-fasih/resolve/main/ur_PK-fasih-medium-model.onnx" \
    -o /app/ur_PK-fasih-medium-model.onnx

RUN curl -L \
    "https://huggingface.co/IhorShevchuk/piper-voice-ur-fasih/resolve/main/ur_PK-fasih-medium-model.onnx.json" \
    -o /app/ur_PK-fasih-medium-model.onnx.json

EXPOSE 8000

HEALTHCHECK CMD curl --fail http://localhost:8000/health || exit 1

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]