#!/usr/bin/env bash
set -euo pipefail

# Installs @neuledge/context globally at a pinned version.
# Usage: setup-neuledge-context.sh [VERSION]
#   VERSION — npm version string (default: 1.2.0)
# Idempotent: skips install if already at the target version.

TARGET_VERSION="${1:-1.2.0}"

current_version() {
  context --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || echo ""
}

CURRENT="$(current_version)"

if [ "$CURRENT" = "$TARGET_VERSION" ]; then
  echo "Already at @neuledge/context@${TARGET_VERSION} — nothing to do."
  exit 0
fi

if [ -n "$CURRENT" ]; then
  echo "Upgrading @neuledge/context from ${CURRENT} to ${TARGET_VERSION}..."
else
  echo "Installing @neuledge/context@${TARGET_VERSION}..."
fi

npm install -g "@neuledge/context@${TARGET_VERSION}"

INSTALLED="$(current_version)"
if [ "$INSTALLED" = "$TARGET_VERSION" ]; then
  echo "Done: @neuledge/context@${TARGET_VERSION} installed."
else
  echo "Error: expected version ${TARGET_VERSION} but got '${INSTALLED}'" >&2
  exit 1
fi