#!/usr/bin/env bash
#===============================================================================
#
# CREATED : 2015-09-09
# UPDATED : 2026-03-03
# USAGE   :
# DESC    : A hack script I wrote to help me manage pre-defined
#           tmux-sessions
# NOTES   :
# AUTHOR  : chawley
#
#===============================================================================

if [ -z "${1:-}" ]; then
	session="undefined"
else
	session=$1
fi

# Change this to your tmux config file if it's not in the home directory or named differently
TMUX_COMMAND="tmux -f .tmux.conf "

echo ""
echo ""
echo "----------------------------------"
echo "TMUX Hack Session Launcher"
echo "----------------------------------"
echo "Launching Session: $session"

# NO TMUX NESTING ALLOWED
if [ ! -z $TMUX ]; then
	echo "You are in a session already.  NO NESTING ALLOWED"
	echo "-------------------------------------------------"
	exit 1
fi

tcheck=$(tmux list-sessions | grep -c "${session}")  # check if session is active

# if session is active, switch to it.  If not active but part of the list below,
# create it.  Finally, if no session or undefined session is passed, give an
# error message and list the active sessions

# sample session definition
#
# case $session in
#    analytics)                                   # <- session name
#        if [[ $tcheck == 0 ]]; then              # <- check if it's already running
#          tmux new-session -d -s analytics       # <- if not, create it
#          tmux rename-window 'localhost'         # <- rename the first window (local)
#          # ↓↓ --- define additional windows --- ↓↓
#          tmux new-window -t:1 -n 'lasis01' 'exec ssh lasis01'
#          tmux new-window -t:2 -n 'lasis01dev' 'exec ssh lasis01dev'
#          tmux new-window -t:3 -n 'ldssbox01' 'exec ssh ldssbox01'
#          tmux new-window -t:4 -n 'lpdprod01' 'exec ssh lpdprod01'
#          tmux new-window -t:5 -n 'ldatalake01' 'exec ssh ldatalake01'
#          tmux new-window -t:6 -n 'lsandbox' 'exec ssh lsandbox'
#        fi
#        tmux attach-session -t analytics     # <- if window active, switch to it
#        ;;

case $session in
    mine)
        if [[ $tcheck == 0 ]]; then
            $TMUX_COMMAND new-session -d -s mine
            $TMUX_COMMAND rename-window 'local(aristotle)'
            $TMUX_COMMAND new-window -t 1 -n 'root@vps' 'exec ssh root@vps.example.org'
            $TMUX_COMMAND new-window -t:2 -n 'chawley@phaedrus' 'exec ssh chawley@phaedrus'
            $TMUX_COMMAND new-window -t:3 -n 'chawley@homer' 'exec ssh chawley@homer.simpsons.net'
        fi
        tmux attach-session -t mine
        ;;

    # add more sessions here inside a case stanza.  Start with a session name and end with ';;'

    *)
        echo "### ERROR No Such Session ###"
        echo "Usage: tm <session_name>"
        echo "Active Sessions:"
        echo "----------------"
        tmux list-sessions
        ;;
esac