<?php
session_start();
include("../config.php");

if(!$_IS_ADMIN){
    die("Not authorized.");
}


$deleted_tags = "";
$message = "No unused tags found.";

$output = "";
$return = 0;
exec($tmsu . "tags", $output, $return);

foreach($output as $tag){
    $count = "";
    $return = 0;

    exec($tmsu . "files -c " . escape_cmd($tag) . " 2>&1", $count, $return);

    if($return !== 0){
        $message = 'Could not execute deletion command: "' . $count[0] . '"';
        break;
    }

    if(intval($count[0]) == 0){
        $output = "";
        exec($tmsu . "delete " . escape_cmd($tag), $output);

        $deleted_tags .= $tag . " ";
    }
}

if($deleted_tags !== "") $message = "Deleted unused tags: (" . $deleted_tags . ")";

array_push($_SESSION["msg"], $message);

if(isset($_GET["_back"])){
    header("Location: " . $_GET["_back"]);
}
else{
    //header("Location: " . $BASE_PATH . "/?msg[0]=" , $message);
    header("Location: " . $BASE_PATH . "/");}