<?php
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * Vertical registry helper.
 *
 * Thin accessors over application/config/verticals.php so controllers and
 * views never poke at the raw config array. Every function is safe to call
 * with untrusted input — vertical_get() returns NULL for anything that is not
 * a known, enabled vertical, which is what makes it usable as a whitelist for
 * $_POST['subpage'] and for route segments.
 */

if ( ! function_exists('vertical_all'))
{
	/**
	 * Every registered vertical, including disabled ones, keyed by slug.
	 *
	 * @return array
	 */
	function vertical_all()
	{
		$CI =& get_instance();
		$CI->config->load('verticals', FALSE, TRUE);
		$verticals = $CI->config->item('verticals');

		return is_array($verticals) ? $verticals : array();
	}
}

if ( ! function_exists('vertical_get'))
{
	/**
	 * One vertical by slug, or NULL when the slug is unknown or disabled.
	 *
	 * Use this as the whitelist for any user-supplied vertical value.
	 *
	 * @param  string $slug
	 * @return array|null
	 */
	function vertical_get($slug)
	{
		if ( ! is_string($slug) || $slug === '')
		{
			return NULL;
		}

		$verticals = vertical_all();

		if ( ! isset($verticals[$slug]))
		{
			return NULL;
		}

		if (empty($verticals[$slug]['enabled']))
		{
			return NULL;
		}

		return $verticals[$slug];
	}
}

if ( ! function_exists('vertical_exists'))
{
	/**
	 * @param  string $slug
	 * @return bool
	 */
	function vertical_exists($slug)
	{
		return vertical_get($slug) !== NULL;
	}
}

if ( ! function_exists('vertical_slugs'))
{
	/**
	 * Slugs of every enabled vertical. Suitable for in_array() checks and for
	 * building the admin service_type dropdown.
	 *
	 * @return array
	 */
	function vertical_slugs()
	{
		$slugs = array();

		foreach (vertical_all() as $slug => $vertical)
		{
			if ( ! empty($vertical['enabled']))
			{
				$slugs[] = $slug;
			}
		}

		return $slugs;
	}
}

if ( ! function_exists('vertical_public'))
{
	/**
	 * Enabled verticals flagged public, ordered by 'sort'. This is what the
	 * home page tiles iterate over — flipping 'public' is the launch switch.
	 *
	 * @return array
	 */
	function vertical_public()
	{
		$public = array();

		foreach (vertical_all() as $slug => $vertical)
		{
			if ( ! empty($vertical['enabled']) && ! empty($vertical['public']))
			{
				$public[$slug] = $vertical;
			}
		}

		uasort($public, 'vertical_sort_compare');

		return $public;
	}
}

if ( ! function_exists('vertical_sort_compare'))
{
	/**
	 * uasort() callback. Named rather than a closure so this helper stays
	 * compatible with the PHP version the live host runs.
	 *
	 * @param  array $a
	 * @param  array $b
	 * @return int
	 */
	function vertical_sort_compare($a, $b)
	{
		$sa = isset($a['sort']) ? (int) $a['sort'] : 0;
		$sb = isset($b['sort']) ? (int) $b['sort'] : 0;

		if ($sa === $sb)
		{
			return 0;
		}

		return ($sa < $sb) ? -1 : 1;
	}
}

if ( ! function_exists('vertical_label'))
{
	/**
	 * Display label for a vertical in the given language, falling back to
	 * English and then to the uppercased slug.
	 *
	 * @param  array  $vertical
	 * @param  string $lang
	 * @return string
	 */
	function vertical_label($vertical, $lang)
	{
		if (isset($vertical['label'][$lang]))
		{
			return $vertical['label'][$lang];
		}

		if (isset($vertical['label']['en']))
		{
			return $vertical['label']['en'];
		}

		return isset($vertical['slug']) ? strtoupper($vertical['slug']) : '';
	}
}

if ( ! function_exists('vertical_lang'))
{
	/**
	 * Whitelist a language segment. The site serves no/en/hu; anything else
	 * falls back to English, matching the existing per-view $langArray checks.
	 *
	 * @param  string $lang
	 * @return string
	 */
	function vertical_lang($lang)
	{
		$allowed = array('no', 'en', 'hu');

		return (is_string($lang) && in_array($lang, $allowed, TRUE)) ? $lang : 'en';
	}
}

if ( ! function_exists('vertical_service_label'))
{
	/**
	 * Display label for a service in a list that is ALREADY grouped under its
	 * category heading.
	 *
	 * services.service_name has to stay self-describing - the confirmation email
	 * and the admin lists render it with no category around it. But in the
	 * booking form, the manage-booking form and the landing-page price list the
	 * category heading sits directly above the row, so repeating it makes every
	 * row wrap and the list read as cramped:
	 *
	 *   [Studio Beve Signature - individuelt tilpasset massasje]
	 *      Studio Beve Signature - individuelt tilpasset massasje - 50 min
	 *
	 * Opt in per vertical via 'strip_category_prefix' so barber and beauty keep
	 * rendering exactly as before.
	 *
	 * @param  array  $vertical     registry row (may be NULL or missing the key)
	 * @param  object $serviceItem  needs ->service_name and ->service_category
	 * @return string
	 */
	function vertical_service_label($vertical, $serviceItem)
	{
		$name = isset($serviceItem->service_name) ? $serviceItem->service_name : '';

		if (empty($vertical['strip_category_prefix']))
		{
			return $name;
		}

		$category = isset($serviceItem->service_category) ? $serviceItem->service_category : '';

		if ($category === '' OR strpos($name, $category) !== 0)
		{
			return $name;
		}

		// The /u modifier matters: the separator is an en dash, and a byte-wise
		// trim() would only mangle it.
		$stripped = substr($name, strlen($category));
		$stripped = preg_replace('/^[\s\-–—]+/u', '', $stripped);
		$stripped = trim($stripped);

		return ($stripped !== '') ? $stripped : $name;
	}
}