<?php

namespace Engelsystem;

class UserHintsRenderer
{
    /** @var string[] */
    private $hints = [];

    private $important = false;

    /**
     * Render the added hints to a popover for the toolbar.
     *
     * @return string
     */
    public function render()
    {
        if (count($this->hints) > 0) {
            $hint_class = $this->important ? 'danger' : 'info';
            $glyphicon = $this->important ? 'warning-sign' : 'info-sign';

            return toolbar_popover(
                $glyphicon . ' text-' . $hint_class, '', $this->hints, 'bg-' . $hint_class
            );
        }

        return '';
    }

    /**
     * Add a hint to the list, if its not null and a not empty string.
     *
     * @param string  $hint      The hint
     * @param boolean $important Is the hint important?
     */
    public function addHint($hint, $important = false)
    {
        if ($hint != null && $hint != '') {
            if ($important) {
                $this->important = true;
                $this->hints[] = error($hint, true);
            } else {
                $this->hints[] = info($hint, true);
            }
        }
    }

    /**
     * Get all hints.
     *
     * @return string[]
     */
    public function getHints()
    {
        return $this->hints;
    }

    /**
     * Are there important hints? This leads to a more intensive icon.
     *
     * @return bool
     */
    public function isImportant()
    {
        return $this->important;
    }
}