#!/usr/bin/env bash
#
# Worktemux: tmux session wrapper
# https://robots.thoughtbot.com/a-tmux-crash-course
#
# Alternatives:
# https://github.com/tmuxinator/tmuxinator
# https://github.com/tony/tmuxp
# https://github.com/tmux-plugins/tpm
# https://github.com/tmux-plugins/tmux-resurrect
# https://github.com/tmux-plugins/tmux-continuum
# https://superuser.com/questions/440015/restore-tmux-session-after-reboot

# Default options.
opts=""
name="$1"
state="$2"

# Session selection.
if [ ! -z "${name}" ]; then
  if ! tmux list-sessions 2> /dev/null | grep -q "^${name}:"; then
    session="new-session -d -s ${name}"

    # Use a unique, per-session name
    #session"${session} -t ${name}"

    if [ "${name}" = "root" ]; then
      sudo tmux attach
      exit
    elif [ -f "$HOME/.tmux/${name}" ]; then
      opts="$HOME/.tmux/${name}"
    elif [ -f "$HOME/.tmux/base" ]; then
      opts="$HOME/.tmux/base"
    else
      opts=""
    fi

    # Start session.
    if [ ! -z "$opts" ]; then
      tmux $session \; source-file $opts
    else
      tmux $session
    fi
  fi

  if [ "$state" != "detached" ]; then
    tmux attach -t ${name}
  fi
else
  tmux
fi