#! /usr/bin/env bash
set -e
[ -n "$TMUXIFIER_DEBUG" ] && set -x

if [ -z "$1" ]; then
  echo "$(tmuxifier-help new-session)" >&2
  exit 1
fi

layout_name="$1"
layout_file="$TMUXIFIER_LAYOUT_PATH/${layout_name}.session.sh"
template="$TMUXIFIER/templates/session.sh"

if [ ! -f "$template" ]; then
  echo "tmuxifier: session layout template not found: $template" >&2
  exit 1
fi

if [ -f "$layout_file" ]; then
  echo "session layout '$layout_name' already exists." >&2
  echo "" >&2
  echo "You can edit it with:" >&2
  echo "  tmuxifier edit-session \"$layout_name\"" >&2
  exit 1
fi

content="$(cat "$template")"
echo "${content//\{\{SESSION_NAME\}\}/$layout_name}" > "$layout_file"

if [ ! -z "$EDITOR" ]; then
  exec "$EDITOR" "$layout_file"
else
  echo "Layout file has been created, but '\$EDITOR' is not set. Please "
  echo "manually open the layout for editing:"
  echo "$layout_file"
  echo
fi