#!/bin/bash

export TMUX_SESSION="app-tmux-$APP_NAME"

case "$2" in
    -h|--help|"")
        echo "commands:"
        echo "  exec              execute tmux with commands"
        echo "  stat              show the status"
        echo;
        echo "args:"
        echo "  -h, --help        show the help documentation"
        echo "  -v, --version     show the version"
        ;;
    -v|--version)
        echo "v0.0.1"
        ;;
    stat)
        CURR_TMUX_SESSION=$(tmux list-session 2>&1 | grep "$TMUX_SESSION")
        if [ -z "$CURR_TMUX_SESSION" ]; then
            echo "tmux session [$TMUX_SESSION] not exists."
        else
            echo "tmux session [$TMUX_SESSION] => $CURR_TMUX_SESSION"
            tmux attach -t $TMUX_SESSION
        fi
        ;;
    exec)
        CURR_TMUX_SESSION=$(tmux list-session 2>&1 | grep "$TMUX_SESSION")
        if [ -n "$CURR_TMUX_SESSION" ]; then
            echo "tmux session [$TMUX_SESSION] => $CURR_TMUX_SESSION"
            tmux attach -t $TMUX_SESSION
        else
            echo "starting..."
            tmux new-session -d -s "$TMUX_SESSION"
            sleep 3
            if [ -n "$TMUX_COMMAND" ]; then
                tmux send-keys   -t "$TMUX_SESSION" "$TMUX_COMMAND" Enter
            fi
            tmux attach      -t "$TMUX_SESSION"
        fi
        ;;
    *)
        echo "Invalid command: ${@:2}"
    ;;
esac