<?php

/**
 * @defgroup identity Identity
 * Implements an abstract identity underlying e.g. User and Author records.
 */

/**
 * @file classes/identity/Identity.inc.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class Identity
 * @ingroup identity
 *
 * @brief Basic class providing common functionality for users and authors in the system.
 */


define('IDENTITY_SETTING_GIVENNAME', 'givenName');
define('IDENTITY_SETTING_FAMILYNAME', 'familyName');

class Identity extends DataObject {

	/**
	 * Get a piece of data for this object, localized to the current
	 * locale if possible.
	 * @param $key string
	 * @param $preferredLocale string
	 * @return mixed
	 */
	function &getLocalizedData($key, $preferredLocale = null) {
		if (is_null($preferredLocale)) $preferredLocale = AppLocale::getLocale();
		$localePrecedence = array($preferredLocale);
		// the users register for the site, thus
		// the site primary locale is the default locale
		$site = Application::get()->getRequest()->getSite();
		if (!in_array($site->getPrimaryLocale(), $localePrecedence)) $localePrecedence[] = $site->getPrimaryLocale();
		// for settings other than givenName, familyName and affiliation (that are required for registration)
		// consider also the context primary locale
		if (!in_array(AppLocale::getPrimaryLocale(), $localePrecedence)) $localePrecedence[] = AppLocale::getPrimaryLocale();
		foreach ($localePrecedence as $locale) {
			if (empty($locale)) continue;
			$value =& $this->getData($key, $locale);
			if (!empty($value)) return $value;
			unset($value);
		}

		// Fallback: Get the first available piece of data.
		$data =& $this->getData($key, null);
		foreach ((array) $data as $dataValue) {
			if (!empty($dataValue)) return $dataValue;
		}

		// No data available; return null.
		unset($data);
		$data = null;
		return $data;
	}

	/**
	 * Get the identity's localized complete name.
	 * Includes given name and family name.
	 * @param $preferred boolean If the preferred public name should be used, if exist
	 * @param $familyFirst boolean False / default: Givenname Familyname
	 * 	If true: Familyname, Givenname
	 * @param $defaultLocale string
	 * @return string
	 */
	function getFullName($preferred = true, $familyFirst = false, $defaultLocale = null, $preferredLocale = null) {
		$locale = $preferredLocale ?? AppLocale::getLocale();
		if ($preferred) {
			$preferredPublicName = $this->getPreferredPublicName($locale);
			if (!empty($preferredPublicName)) return $preferredPublicName;
		}
		$givenName = $this->getGivenName($locale);
		if (empty($givenName)) {
			if (is_null($defaultLocale)) {
				// the users register for the site, thus
				// the site primary locale is the default locale
				$site = Application::get()->getRequest()->getSite();
				$defaultLocale = $site->getPrimaryLocale();
			}
			$locale = $defaultLocale;
			$givenName = $this->getGivenName($locale);
		}
		$familyName = $this->getFamilyName($locale);
		if ($familyFirst) {
			return ($familyName != ''?"$familyName, " :'') . $givenName;
		} else {
			return $givenName . ($familyName != ''?" $familyName" :'');
		}
	}

	/**
	 * Get given name.
	 * @param $locale string
	 * @return string|array
	 */
	function getGivenName($locale) {
		return $this->getData(IDENTITY_SETTING_GIVENNAME, $locale);
	}

	/**
	 * Set given name.
	 * @param $givenName string
	 * @param $locale string
	 */
	function setGivenName($givenName, $locale) {
		$this->setData(IDENTITY_SETTING_GIVENNAME, $givenName, $locale);
	}

	/**
	 * Get the localized given name
	 * @return string
	 */
	function getLocalizedGivenName() {
		return $this->getLocalizedData(IDENTITY_SETTING_GIVENNAME);
	}

	/**
	 * Get family name.
	 * @param $locale string
	 * @return string|array
	 */
	function getFamilyName($locale) {
		return $this->getData(IDENTITY_SETTING_FAMILYNAME, $locale);
	}

	/**
	 * Set family name.
	 * @param $familyName string
	 * @param $locale string
	 */
	function setFamilyName($familyName, $locale) {
		$this->setData(IDENTITY_SETTING_FAMILYNAME, $familyName, $locale);
	}

	/**
	 * Get the localized family name
	 * Return family name for the locale first name exists in
	 * @return string
	 */
	function getLocalizedFamilyName() {
		$locale = AppLocale::getLocale();
		$givenName = $this->getGivenName($locale);
		// Only use the family name if a given name exists (to avoid mixing locale data)
		if (!empty($givenName)) {
			return $this->getFamilyName($locale);
		}
		// Fall back on the site locale.
		$site = Application::get()->getRequest()->getSite();
		$locale = $site->getPrimaryLocale();
		return $this->getFamilyName($locale);
	}

	/**
	 * Get preferred public name.
	 * @param $locale string
	 * @return string
	 */
	function getPreferredPublicName($locale) {
		return $this->getData('preferredPublicName', $locale);
	}

	/**
	 * Set preferred public name.
	 * @param $preferredPublicName string
	 * @param $locale string
	 */
	function setPreferredPublicName($preferredPublicName, $locale) {
		$this->setData('preferredPublicName', $preferredPublicName, $locale);
	}

	/**
	 * Get affiliation (position, institution, etc.).
	 * @param $locale string
	 * @return string
	 */
	function getAffiliation($locale) {
		return $this->getData('affiliation', $locale);
	}

	/**
	 * Set affiliation.
	 * @param $affiliation string
	 * @param $locale string
	 */
	function setAffiliation($affiliation, $locale) {
		$this->setData('affiliation', $affiliation, $locale);
	}

	/**
	 * Get the localized affiliation
	 */
	function getLocalizedAffiliation() {
		return $this->getLocalizedData('affiliation');
	}

	/**
	 * Get email address.
	 * @return string
	 */
	function getEmail() {
		return $this->getData('email');
	}

	/**
	 * Set email address.
	 * @param $email string
	 */
	function setEmail($email) {
		$this->setData('email', $email);
	}

	/**
	 * Get ORCID identifier
	 * @return string
	 */
	function getOrcid() {
		return $this->getData('orcid');
	}

	/**
	 * Set ORCID identifier.
	 * @param $orcid string
	 */
	function setOrcid($orcid) {
		$this->setData('orcid', $orcid);
	}

	/**
	 * Get country code (ISO 3166-1 two-letter codes)
	 * @return string
	 */
	function getCountry() {
		return $this->getData('country');
	}

	/**
	 * Get localized country
	 * @return string?
	 */
	function getCountryLocalized() {
		$countryCode = $this->getCountry();
		if (!$countryCode) return null;
		$isoCodes = new \Sokil\IsoCodes\IsoCodesFactory();
		$country = $isoCodes->getCountries()->getByAlpha2($countryCode);
		return $country?$country->getLocalName():null;
	}

	/**
	 * Set country code (ISO 3166-1 two-letter codes)
	 * @param $country string
	 */
	function setCountry($country) {
		$this->setData('country', $country);
	}

	/**
	 * Get URL.
	 * @return string
	 */
	function getUrl() {
		return $this->getData('url');
	}

	/**
	 * Set URL.
	 * @param $url string
	 */
	function setUrl($url) {
		$this->setData('url', $url);
	}

	/**
	 * Get the localized biography
	 * @return string
	 */
	function getLocalizedBiography() {
		return $this->getLocalizedData('biography');
	}

	/**
	 * Get biography.
	 * @param $locale string
	 * @return string
	 */
	function getBiography($locale) {
		return $this->getData('biography', $locale);
	}

	/**
	 * Set biography.
	 * @param $biography string
	 * @param $locale string
	 */
	function setBiography($biography, $locale) {
		$this->setData('biography', $biography, $locale);
	}

}


