#!/usr/bin/env sh
#MISE description="Create a workspace for an agent to work in beside others"
#USAGE arg "<id>" help="The number that names the workspace"
#USAGE arg "[base]" help="The revision to start from"

set -e

case "$1" in
"" | *[!0-9]*)
  echo "id must be a number" >&2
  exit 1
  ;;
esac

id="$1"
dir="tmp/worktrees/ws${id}"

mkdir -p tmp/worktrees

if [ -d .jj ]; then
  jj workspace add "$dir" --name "ws${id}" -r "${2:-@-}"
else
  git worktree add -b "ws${id}" "$dir" "${2:-HEAD}"
fi

mise trust --quiet "$dir/.config/mise.toml"