#!/usr/bin/env bash

ensure() {
    if ! command -v "$1" &>/dev/null; then
        printf "%s not found. Please install it (or check your PATH) and try again.\n" "$1"
        exit 1
    fi
}

filter() {
    zellij list-sessions --short | gum filter --placeholder "$1"
}

ensure zellij
ensure gum

if ! zellij list-sessions &>/dev/null; then
    printf "no sessions\n"
    exit 1
fi

session=$(filter "Select a session to attach...")

if [ -z "$session" ]; then
    exit 0
fi

zellij attach "$session"