FROM python:3.10-slim

ENV DEBIAN_FRONTEND=noninteractive
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

ENV GRADIO_SERVER_NAME=0.0.0.0
ENV GRADIO_SERVER_PORT=7860

RUN apt-get update && apt-get install -y --no-install-recommends         r-base r-base-dev build-essential curl git         libcurl4-openssl-dev libssl-dev libxml2-dev         && rm -rf /var/lib/apt/lists/*

# R packages used in ranalysis.ipynb
RUN R -e "install.packages(c('forecast','ggplot2','jsonlite','readr','dplyr','tidyr','stringr','lubridate','broom'), repos='https://cloud.r-project.org')"

WORKDIR /app

COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Optional R kernel for notebooks
RUN R -e "install.packages('IRkernel', repos='https://cloud.r-project.org/')"
RUN R -e "IRkernel::installspec(user = FALSE)"

COPY . /app

EXPOSE 7860
CMD ["python", "app.py"]