#!/bin/bash

set -eo pipefail

cd "$(dirname "$0")"

TMUX_CMD="${TMUX_CMD:-tmux}"
USE_TMUX="${USE_TMUX:-yes}"

if [[ "$USE_MULTITAIL" == "yes" ]]; then
  USE_TMUX="no"
fi

if [[ "$USE_TMUX" != "no" ]]; then
  type "$TMUX_CMD" &>/dev/null || { echo "${TMUX_CMD}" is missing; USE_TMUX="no"; }
fi

if [[ "$USE_TMUX" != "no" ]]; then
  TMUX_SESSION_NAME="${TMUX_SESSION_NAME:-nbc-sim}"

  $TMUX_CMD new-session -s "${TMUX_SESSION_NAME}" -d
  $TMUX_CMD setenv -t "${TMUX_SESSION_NAME}" USE_TMUX yes

  $TMUX_CMD bind-key -n q kill-session

  # maybe these should be moved to a user config file
  $TMUX_CMD set-option -t "${TMUX_SESSION_NAME}" history-limit 999999
  $TMUX_CMD set-option -t "${TMUX_SESSION_NAME}" remain-on-exit on
  $TMUX_CMD set -t "${TMUX_SESSION_NAME}" mouse on

  # We create a new window, so the above settings can take place
  $TMUX_CMD new-window -d -t "${TMUX_SESSION_NAME}" -n "sim"
  $TMUX_CMD kill-pane -t "${TMUX_SESSION_NAME}:0"

  $TMUX_CMD new-window -t "${TMUX_SESSION_NAME}" -n "start-script" "if ! $PWD/start.sh; then; read; tmux kill-session; fi"
  $TMUX_CMD select-window -t "${TMUX_SESSION_NAME}:start-script"

  $TMUX_CMD attach-session -t "${TMUX_SESSION_NAME}"
else
  ./start.sh
fi