#!/usr/bin/env bash
# ms — modal shell dispatcher
# Usage: ms [mode]
#   ms          list available modes
#   ms <mode>   enter named mode
set -euo pipefail

MODES_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/modes" && pwd)"

if [[ $# -eq 0 ]]; then
  echo "Available modes:"
  for f in "$MODES_DIR"/*.sh; do
    [[ "$(basename "$f")" == "base.sh" ]] && continue
    printf "  %s\n" "$(basename "$f" .sh)"
  done
  exit 0
fi

mode="$1"
mode_file="$MODES_DIR/${mode}.sh"

if [[ ! -f "$mode_file" ]]; then
  echo "error: unknown mode '$mode'" >&2
  echo "Run 'ms' to list available modes." >&2
  exit 1
fi

exec bash "$mode_file"