#!/bin/bash
# Build the jobbsok Python environment and pin the ingestion guard.
#
# bash 3.2-clean and ASCII-only on purpose: the system bash on this Mac is 3.2,
# and a multibyte character has crashed a `set -u` script here before.
#
# Where the environment lives is load-bearing, not incidental. When
# CLAUDE_PLUGIN_DATA is set the environment is built there, because that
# directory survives a plugin update -- the plugin's own cache does not. A
# repo-root-only .venv would leave every non-development install without the
# guard, which is risk H2. The repo-root .venv is the development case.
#
# Usage:
#   bash scripts/bootstrap.sh              # dev dependencies
#   bash scripts/bootstrap.sh --med-xlsx   # also the openpyxl extra

set -eu

MIN_MAJOR=3
MIN_MINOR=10

WITH_XLSX=0
for arg in "$@"; do
  case "$arg" in
    --med-xlsx) WITH_XLSX=1 ;;
    -h|--help)
      sed -n '2,20p' "$0"
      exit 0 ;;
    *)
      echo "bootstrap: unknown argument: $arg" >&2
      echo "bootstrap: usage: bash scripts/bootstrap.sh [--med-xlsx]" >&2
      exit 2 ;;
  esac
done

SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
REPO_ROOT=$(cd "$SCRIPT_DIR/.." && pwd)

if [ -n "${CLAUDE_PLUGIN_DATA:-}" ]; then
  VENV_DIR="${CLAUDE_PLUGIN_DATA}/venv"
  VENV_KIND="plugin-data (survives a plugin update)"
else
  VENV_DIR="${REPO_ROOT}/.venv"
  VENV_KIND="repo root (development)"
fi

# Refuse an interpreter that is too old rather than building an environment
# that parses everything and fails at runtime. Under a GUI-spawned process with
# an empty PATH, python3 here can resolve to 3.9.6.
PYTHON_BIN="${JOBBSOK_PYTHON:-python3}"
if ! command -v "$PYTHON_BIN" >/dev/null 2>&1; then
  echo "bootstrap: no such interpreter: $PYTHON_BIN" >&2
  echo "bootstrap: set JOBBSOK_PYTHON to a Python ${MIN_MAJOR}.${MIN_MINOR}+ executable." >&2
  exit 1
fi
if ! "$PYTHON_BIN" -c "import sys; sys.exit(0 if sys.version_info >= ($MIN_MAJOR, $MIN_MINOR) else 1)"; then
  FOUND=$("$PYTHON_BIN" -c "import sys; print('%d.%d.%d' % sys.version_info[:3])")
  echo "bootstrap: $PYTHON_BIN is Python $FOUND; ${MIN_MAJOR}.${MIN_MINOR}+ is required." >&2
  echo "bootstrap: refusing to build an environment on it. Set JOBBSOK_PYTHON instead." >&2
  exit 1
fi

echo "bootstrap: interpreter  $("$PYTHON_BIN" -c 'import sys; print(sys.executable)')"
echo "bootstrap: environment  $VENV_DIR  [$VENV_KIND]"

if [ ! -x "${VENV_DIR}/bin/python" ]; then
  mkdir -p "$(dirname "$VENV_DIR")"
  "$PYTHON_BIN" -m venv "$VENV_DIR"
fi

VENV_PY="${VENV_DIR}/bin/python"

"$VENV_PY" -m pip install --quiet --upgrade pip
# PEP 735 dependency groups need pip 25.1+; the upgrade above is what makes
# this line safe, and a pip too old to understand --group fails loudly here.
"$VENV_PY" -m pip install --quiet --group "${REPO_ROOT}/pyproject.toml:dev"
if [ "$WITH_XLSX" -eq 1 ]; then
  "$VENV_PY" -m pip install --quiet --group "${REPO_ROOT}/pyproject.toml:xlsx"
fi

"$VENV_PY" - <<'PYEOF'
import sys

import llm_ingestion_guard

print("bootstrap: sys.executable  %s" % sys.executable)
print("bootstrap: python          %s" % sys.version.split()[0])
print("bootstrap: guard           %s" % llm_ingestion_guard.__version__)
PYEOF

echo "bootstrap: ok"