#!/usr/bin/env bash
# Install Chandra with Hugging Face / Transformers backend (local GPU or CPU).
set -euo pipefail
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
UP="${ROOT}/upstream"
if [[ ! -d "${UP}/chandra" ]]; then
	echo "Missing ${UP}/chandra — run: git submodule update --init services/chandra/upstream" >&2
	exit 1
fi
cd "${UP}"
if command -v uv >/dev/null 2>&1; then
	uv sync --extra hf
else
	if [[ ! -d .venv ]]; then
		python3 -m venv .venv
	fi
	"${UP}/.venv/bin/pip" install -U pip
	"${UP}/.venv/bin/pip" install -e ".[hf]"
fi
echo ""
echo "OK. Configure model (optional): cp ${ROOT}/.env.example ${UP}/local.env && edit"
echo "Run OCR (local HF): ${ROOT}/run-chandra-hf.sh <input.pdf|dir> <output_dir>"