<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

include_once "class-lp-profile-tabs.php";

if ( ! class_exists( 'LP_Profile' ) ) {
	/**
	 * Class LP_Profile
	 *
	 * Main class to controls the profile of a user
	 */
	class LP_Profile {
		/**
		 * The instances of all users has initialed a profile
		 *
		 * @var array
		 */
		protected static $_instances = array();

		/**
		 * @var LP_User
		 */
		protected $_user = false;

		/**
		 * @var string
		 */
		protected $_role = '';

		/**
		 * @var bool
		 */
		protected static $_hook_added = false;

		/**
		 * @var array
		 */
		protected $_publicity = array();

		/**
		 * @var array
		 */
		protected $_default_actions = array();

		/**
		 * @var LP_User_CURD
		 */
		protected $_curd = null;

		/**
		 * @var null
		 */
		protected $_tabs = null;

		/**
		 * @var array
		 */
		protected $_default_settings = array();

		/**
		 *  Constructor
		 *
		 * @param        $user
		 * @param string $role
		 */
		protected function __construct( $user, $role = '' ) {

			$this->_curd = new LP_User_CURD();

			$this->_user = $user;
			$this->get_user();

			if ( ! $role ) {
				$this->_role = $this->get_role();
			}

			$this->maybe_logout_redirect();

			$this->_default_actions = apply_filters(
				'learn-press/profile-default-actions',
				array(
					'basic-information' => __( 'Account information updated successful.', 'learnpress' ),
					'avatar'            => __( 'Account avatar updated successful.', 'learnpress' ),
					'password'          => __( 'Password updated successful.', 'learnpress' ),
					'publicity'         => __( 'Account publicity updated successful.', 'learnpress' ),
				)
			);

			if ( ! self::$_hook_added ) {
				self::$_hook_added = true;
				add_action( 'learn-press/profile-content', array( $this, 'output' ), 10, 3 );
				add_action( 'learn-press/before-profile-content', array( $this, 'output_section' ), 10, 3 );
				add_action( 'learn-press/profile-section-content', array( $this, 'output_section_content' ), 10, 3 );

				/*
				 * Register actions with request handler class to process
				 * requesting from user profile.
				 */
				foreach ( $this->_default_actions as $action => $message ) {
					/**
					 * @see LP_Profile::save()
					 */
					LP_Request_Handler::register( 'save-profile-' . $action, array( $this, 'save' ) );
				}

				add_filter( 'learn-press/profile/class', array( $this, 'profile_class' ) );
			}

			add_filter( 'template_include', array( $this, 'parse_request' ) );
		}

		/**
		 * Prevent access view owned course in non admin, instructor profile page.
		 *
		 * @param $template
		 *
		 * @return mixed
		 */
		public function parse_request( $template ) {
			$profile = LP_Profile::instance();
			$user    = $profile->get_user();
			$role    = $user->get_role();

			if ( ! in_array( $role, array( 'admin', 'instructor' ) ) ) {
				unset( $this->_default_settings['courses']['sections']['owned'] );

				$tabs           = apply_filters( 'learn-press/profile-tabs', $this->_default_settings );
				$profile->_tabs = new LP_Profile_Tabs( $tabs, LP_Profile::instance() );
			}

			return $template;
		}

		/**
		 * Maybe logout wp if there is a logout sign
		 */
		public function maybe_logout_redirect() {
			if ( ( 'true' !== LP_Request::get_string( 'lp-logout' ) )
				|| ! wp_verify_nonce( sanitize_key( LP_Request::get_string( 'nonce' ) ), 'lp-logout' ) ) {
				return;
			}

			wp_logout();
			if ( ! $redirect = LP_Request::get_redirect() ) {
				$redirect = learn_press_get_current_url();
			}
			wp_redirect( $redirect );
			exit();
		}

		public function is_guest() {
			return ! $this->_user || $this->_user && $this->_user->is_guest();
		}

		public function profile_class( $classes ) {
			if ( 'yes' === LP()->settings()->get( 'enable_login_profile' ) && 'yes' === LP()->settings()->get( 'enable_register_profile' ) ) {
				//$classes[] = 'enable-login-register';
			}

			if ( $this->is_public() ) {//} ! $this->is_guest() && ( $this->is_public() || $this->is_current_user() ) ) {
				//$classes[] = 'has-content';
			}

			return $classes;
		}

		public function output( $tab, $args, $user ) {
			if ( ( $location = learn_press_locate_template( 'profile/tabs/' . $tab . '.php' ) ) && file_exists( $location ) ) {
				include $location;
			}
		}

		public function output_section( $tab_key, $tab_data, $user ) {
			learn_press_get_template( 'profile/tabs/sections.php', compact( 'tab_key', 'tab_data', 'user' ) );
		}

		public function output_section_content( $section, $args, $user ) {
			global $wp;
			$current = $this->get_current_section();
			if ( $current === $section ) {
				if ( ( $location = learn_press_locate_template( 'profile/tabs/' . $this->get_current_tab() . '/' . $section . '.php' ) ) && file_exists( $location ) ) {
					include $location;
				}
			}
		}

		/**
		 * Get role of current user.
		 *
		 * @return string
		 */
		protected function get_role() {
			if ( $user = $this->get_user() ) {///learn_press_get_current_user( false ) ) {
				if ( ! $user->is_guest() ) {
					if ( $this->_user->is_admin() ) {
						return 'admin';
					}

					if ( $this->_user->is_instructor() ) {
						return 'instructor';
					}

					return 'user';
				}
			}

			return '';
		}

		/**
		 * Get the user of a profile instance.
		 *
		 * @return bool|LP_User|mixed
		 */
		public function get_user() {
			if ( ! $this->_user instanceof LP_Abstract_User ) {
				if ( is_numeric( $this->_user ) ) {
					$this->_user = learn_press_get_user( $this->_user );
				} elseif ( is_string( $this->_user ) ) {
					if ( $user = get_user_by( 'login', $this->_user ) ) {
						$this->_user = learn_press_get_user( $user->ID );
					}
				}

				if ( ! $this->_user && ! is_user_logged_in() ) {
					$this->_user = learn_press_get_current_user();
				}

				$settings         = LP()->settings;
				$this->_publicity = apply_filters( 'learn-press/check-publicity-setting', array(
					'view-tab-dashboard'         => $this->get_publicity( 'my-dashboard' ) == 'yes',
					'view-tab-basic-information' => $this->get_publicity( 'dashboard' ) == 'yes',
					'view-tab-courses'           => $this->get_publicity( 'courses' ) == 'yes',
					'view-tab-quizzes'           => $this->get_publicity( 'quizzes' ) == 'yes'
				), $this );
			}

			return $this->_user;
		}

		public function is_current_user() {
			return ( $user = $this->get_user() ) ? $user->is( 'current' ) : false;
		}

		/**
		 * Wrap function for $user->get_data()
		 *
		 * @param string $field
		 *
		 * @return mixed
		 */
		public function get_user_data( $field ) {
			return 'id' === strtolower( $field ) ? $this->_user->get_id() : $this->_user->get_data( $field );
		}

		public function tab_dashboard() {
			learn_press_get_template( 'profile/dashboard.php', array( 'user' => $this->_user ) );
		}

		public function get_login_url( $redirect = false ) {
			return learn_press_get_login_url( $redirect !== false ? $redirect : $this->get_current_url() );
		}

		/**
		 * Get default tabs for profile.
		 *
		 * @return LP_Profile_Tabs
		 */
		public function get_tabs() {

			if ( $this->_tabs === null ) {
				$settings        = LP()->settings;
				$course_sections = array();

				$course_sections['owned'] = array(
					'title'    => __( 'Owned', 'learnpress' ),
					'slug'     => $settings->get( 'profile_endpoints.own-courses', 'owned' ),
					'callback' => array( $this, 'tab_order_details' ),
					'priority' => 10
				);

				$course_sections['purchased'] = array(
					'title'    => __( 'Purchased', 'learnpress' ),
					'slug'     => $settings->get( 'profile_endpoints.purchased-courses', 'purchased' ),
					'callback' => array( $this, 'tab_order_details' ),
					'priority' => 15
				);


				$this->_default_settings = array(
					'dashboard'     => array(
						'title'    => __( 'Dashboard', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-dashboard', '' ),
						'callback' => array( $this, 'tab_dashboard' ),
						'priority' => 10
					),
					'courses'       => array(
						'title'    => __( 'Courses', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-courses', 'courses' ),
						'callback' => array( $this, 'tab_courses' ),
						'priority' => 15,
						'sections' => $course_sections
					),
					'quizzes'       => array(
						'title'    => __( 'Quizzes', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-quizzes', 'quizzes' ),
						'callback' => array( $this, 'tab_quizzes' ),
						'priority' => 20
					),
					'orders'        => array(
						'title'    => __( 'Orders', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-orders', 'orders' ),
						'callback' => array( $this, 'tab_orders' ),
						'priority' => 25
					),
					'order-details' => array(
						'title'    => __( 'Order details', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-order-details', 'order-details' ),
						'hidden'   => true,
						'callback' => array( $this, 'tab_order_details' ),
						'priority' => 30
					),
					'settings'      => array(
						'title'    => __( 'Settings', 'learnpress' ),
						'slug'     => $settings->get( 'profile_endpoints.profile-settings', 'settings' ),
						'callback' => array( $this, 'tab_settings' ),
						'sections' => array(
							'basic-information' => array(
								'title'    => __( 'General', 'learnpress' ),
								'slug'     => $settings->get( 'profile_endpoints.settings-basic-information', 'basic-information' ),
								'callback' => array( $this, 'tab_order_details' ),
								'priority' => 10
							),
							'change-password'   => array(
								'title'    => __( 'Password', 'learnpress' ),
								'slug'     => $settings->get( 'profile_endpoints.settings-change-password', 'change-password' ),
								'callback' => array( $this, 'tab_order_details' ),
								'priority' => 30
							)
						),
						'priority' => 35
					)
				);

				if ( $this->is_enable_avatar() ) {
					$this->_default_settings['settings']['sections']['avatar'] = array(
						'title'    => __( 'Avatar', 'learnpress' ),
						'callback' => array( $this, 'tab_order_details' ),
						'slug'     => $settings->get( 'profile_endpoints.settings-avatar', 'avatar' ),
						'priority' => 20
					);
				}

				if ( 'yes' === $settings->get( 'profile_publicity.dashboard' ) ) {
					$this->_default_settings['settings']['sections']['publicity'] = array(
						'title'    => __( 'Publicity', 'learnpress' ),
						'slug'     => 'publicity',
						'priority' => 40,
						'callback' => array( $this, 'tab_order_details' )
					);
				}

				$tabs        = apply_filters( 'learn-press/profile-tabs', $this->_default_settings );
				$this->_tabs = new LP_Profile_Tabs( $tabs, LP_Profile::instance() );
			}

			return $this->_tabs;
		}

		public function get_slug( $data, $default = '' ) {
			return $this->get_tabs()->get_slug( $data, $default );
		}

		/**
		 * Enable custom avatar?
		 *
		 * @return bool
		 */
		public function is_enable_avatar() {
			if ( ! $profile_avatar = get_option( 'learn_press_profile_avatar' ) ) {
				update_option( 'learn_press_profile_avatar', 'yes' );
			}
			$settings = LP()->settings;
			if ( ! $setting_avatar = $settings->get( 'profile_endpoints.settings-avatar' ) ) {
				$profile_endpoints['settings-basic-information'] = 'basic-information';
				$profile_endpoints['settings-avatar']            = 'avatar';
				$profile_endpoints['settings-change-password']   = 'change-password';
				update_option( 'learn_press_profile_endpoints', $profile_endpoints, 'yes' );
				add_rewrite_rule( '(.?.+?)/avatar(/(.*))?/?$', 'index.php?pagename=$matches[1]&section=avatar', 'top' );
			}

			return LP()->settings()->get( 'profile_avatar' ) === 'yes';
		}

		/**
		 * Get current tab slug in query string.
		 *
		 * @param string $default Optional.
		 * @param bool $key Optional. True if return the key instead of value.
		 *
		 * @return string
		 */
		public function get_current_tab( $default = '', $key = true ) {
			return $this->get_tabs()->get_current_tab( $default, $key );
		}

		/**
		 * Get current section in query string.
		 *
		 * @param string $default
		 * @param bool $key
		 * @param string $tab
		 *
		 * @return bool|int|mixed|string
		 */
		public function get_current_section( $default = '', $key = true, $tab = '' ) {
			return $this->get_tabs()->get_current_section( $default, $key, $tab );
		}

		/**
		 * Get tab data at a position.
		 *
		 * @param int $position Optional. Indexed number or slug.
		 *
		 * @return mixed
		 */
		public function get_tab_at( $position = 0 ) {
			return $this->get_tabs()->get_tab_at( $position );
		}

		/**
		 * Get permalink of a tab and section if passed.
		 *
		 * @param bool $tab
		 * @param bool $with_section
		 *
		 * @return mixed|string
		 */
		public function get_tab_link( $tab = false, $with_section = false ) {
			$user = $this->get_user();

			if ( ! $user ) {
				return '';
			}

			$url = $this->get_tabs()->get_tab_link( $tab, $with_section, $user->get_username() );

			/**
			 * @deprecated
			 */
			$url = apply_filters( 'learn_press_user_profile_link', $url, $user->get_id(), $tab );

			return apply_filters( 'learn-press/user-profile-url', $url, $user->get_id(), $tab );
		}

		/**
		 * Get current link of profile
		 *
		 * @param string $args - Optional. Add more query args to url.
		 * @param bool $with_permalink - Optional. TRUE to build url as friendly url.
		 *
		 * @return mixed|string
		 */
		public function get_current_url( $args = '', $with_permalink = false ) {
			return $this->get_tabs()->get_current_url( $args, $with_permalink );
		}

		/**
		 * Check if the $key is current tab.
		 *
		 * @param string $key
		 *
		 * @return bool
		 */
		public function is_current_tab( $key ) {
			return $this->get_current_tab() === $key;
		}

		/**
		 * Check if the $key is current section.
		 *
		 * @param string $key
		 * @param string $tab
		 *
		 * @return bool
		 */
		public function is_current_section( $key, $tab = '' ) {
			return $this->get_current_section() === $key;
		}

		/**
		 * Check if a tab or section is hidden.
		 *
		 * @param array $tab_or_section
		 *
		 * @return bool
		 */
		public function is_hidden( $tab_or_section ) {
			return is_array( $tab_or_section ) && array_key_exists( 'hidden', $tab_or_section ) && $tab_or_section['hidden'];
		}

		public function is_public() {
			return $this->current_user_can( 'view-tab-dashboard' );
		}

		/**
		 * Check if user can with a capability.
		 *
		 * @param string $capability
		 *
		 * @return mixed
		 */
		public function current_user_can( $capability ) {
			$tab         = substr( $capability, strlen( 'view-tab-' ) );
			$public_tabs = apply_filters( 'learn-press/profile/publicity-tabs', array() );
			// public profile courses and quizzes tab
			if ( in_array( $tab, $public_tabs ) ) {
				$can = true;
			} else {
				if ( $this->_user && $this->_user->get_id() && ( get_current_user_id() === $this->_user->get_id() ) ) {
					$can = true;
				} else {
					if ( empty( $this->_publicity['view-tab-dashboard'] ) || ( false === $this->_publicity['view-tab-dashboard'] ) ) {
						$can = false;
					} else {
						$can = ! empty( $this->_publicity[ $capability ] ) && ( $this->_publicity[ $capability ] == true );
					}
				}
			}

			return apply_filters( 'learn-press/profile-current-user-can', $can, $capability );
		}

		/**
		 * Save profile.
		 *
		 * @param string $nonce . Value of nonce depending on the action requested from profile tab.
		 *
		 * @return mixed
		 */
		public function save( $nonce ) {

			$action  = '';
			$message = '';
			// Find the action by checking the nonce
			foreach ( $this->_default_actions as $_action => $message ) {
				if ( wp_verify_nonce( sanitize_key( $nonce ), 'learn-press-save-profile-' . $_action ) ) {
					$action = $_action;
					break;
				}
				$action = '';
			}

			// If none of actions found.
			if ( ! $action ) {
				return false;
			}
			$return = false;
			switch ( $action ) {
				case 'basic-information':
					$return = learn_press_update_user_profile_basic_information( true );
					break;
				case 'avatar':
					if ( $this->is_enable_avatar() ) {
						$return = learn_press_update_user_profile_avatar( true );
					}
					break;
				case 'password':
					$return = learn_press_update_user_profile_change_password( true );
					break;
				case 'publicity':
					$publicity = LP_Request::get_array( 'publicity' );

					if ( empty( $publicity['my-dashboard'] ) ) {
						$publicity = false;
					} elseif ( 'yes' !== $publicity['my-dashboard'] ) {
						$publicity = false;
					}

					if ( ! $publicity ) {
						update_user_meta( get_current_user_id(), '_lp_profile_publicity', array() );
					} else {
						update_user_meta( get_current_user_id(), '_lp_profile_publicity', $publicity );
					}

			}
			if ( is_wp_error( $return ) ) {
				learn_press_add_message( $return->get_error_message() );
			} else {
				if ( $return ) {
					learn_press_add_message( $message );
				}
			}

			if ( ! empty( $_REQUEST['redirect'] ) ) {
				$redirect = $_REQUEST['redirect'];
			} else {
				$redirect = learn_press_get_current_url();
			}

			$redirect = apply_filters( 'learn-press/profile-updated-redirect', $redirect, $action );

			if ( $redirect ) {
				wp_redirect( $redirect );
				exit;
			}

			return true;
		}

		/**
		 * Get publicity profile settings.
		 *
		 * @since 3.0.0
		 *
		 * @param string $tab
		 *
		 * @return array|mixed
		 */
		public function get_publicity( $tab = '' ) {

			$publicity = false;
			/**
			 * For first time user did not save anything from profile then get default
			 * from settings in admin.
			 */
			if ( ( $user = $this->get_user() ) && ( '' === ( $publicity = $user->get_data( 'profile_publicity' ) ) ) ) {
				$publicity = apply_filters( 'learn-press/get-publicity-setting', array(
					'my-dashboard' => LP()->settings()->get( 'profile_publicity.dashboard' ),
					'courses'      => LP()->settings()->get( 'profile_publicity.courses' ),
					'quizzes'      => LP()->settings()->get( 'profile_publicity.quizzes' )
				) );
			}

			if ( $publicity && $tab ) {
				if ( array_key_exists( $tab, $publicity ) ) {
					return $publicity[ $tab ];
				} else {
					return false;
				}
			}

			return $publicity ? $publicity : false;
		}

		/**
		 * Get all orders of profile's user.
		 *
		 * @param mixed $args
		 *
		 * @since 3.0.0
		 *
		 * @return array
		 */
		public function get_user_orders( $args = '' ) {

			$args = wp_parse_args(
				$args,
				array(
					'group_by_order' => true,
					'status'         => ''
				)
			);

			return $this->_curd->get_orders( $this->get_user_data( 'id' ), $args );
		}

		/**
		 * Query order of user is viewing profile.
		 *
		 * @param string $args
		 *
		 * @return LP_Query_List_Table
		 */
		public function query_orders( $args = '' ) {
			global $wp_query;
			$query = array(
				'items'      => array(),
				'total'      => 0,
				'num_pages'  => 0,
				'pagination' => ''
			);

			$query_args = array();

			if ( is_array( $args ) ) {
				foreach ( array( 'status', 'group_by_order' ) as $k ) {
					if ( isset( $args[ $k ] ) ) {
						$query_args[ $k ] = $args[ $k ];
					}
				}
			}

			if ( empty( $query_args['status'] ) ) {
				$query_args['status'] = 'completed processing cancelled pending';
			}

			if ( $order_ids = $this->get_user_orders( $query_args ) ) {
				$default_args = array(
					'paged' => 1,
					'limit' => 10
				);

				// Page
				if ( $this->get_current_tab() === 'orders' && isset( $wp_query->query_vars['view_id'] ) ) {
					$default_args['paged'] = $wp_query->query_vars['view_id'];
				}

				$args   = wp_parse_args( $args, $default_args );
				$offset = isset( $args['limit'] ) && $args['limit'] > 0 && $args['paged'] ? ( $args['paged'] - 1 ) * $args['limit'] : 0;

				$query_order = new WP_Query(
					array(
						'post_type'      => LP_ORDER_CPT,
						'posts_per_page' => $args['limit'],
						'offset'         => $offset,
						'post_status'    => 'any',
						'post__in'       => array_keys( $order_ids ),
						'orderby'        => 'post__in',
						'fields'         => 'ids'
					)
				);

				if ( $query_order->have_posts() ) {

					$orders = ( isset( $args['fields'] ) && 'ids' === $args['fields'] ) ? $query_order->posts : array_filter( array_map( 'learn_press_get_order', $query_order->posts ) );

					$query['orders']     = $orders;
					$query['total']      = $query_order->found_posts;
					$query['num_pages']  = $query_order->max_num_pages;
					$query['pagination'] = learn_press_paging_nav( array(
						'num_pages' => $query['num_pages'],
						'base'      => learn_press_user_profile_link( $this->get_user_data( 'id' ), LP()->settings->get( 'profile_endpoints.profile-orders' ) ),
						'format'    => $GLOBALS['wp_rewrite']->using_permalinks() ? user_trailingslashit( '%#%', '' ) : '?paged=%#%',
						'echo'      => false,
						'paged'     => $args['paged']
					) );

					$query = new LP_Query_List_Table(
						array(
							'total' => $query_order->found_posts,
							'paged' => $args['paged'],
							'limit' => $args['limit'],
							'pages' => $query['num_pages'],
							'items' => $orders
						)
					);
				}

			} else {
				$query = new LP_Query_List_Table( $query );
			}

			return $query;
		}

		/**
		 * Query user's courses
		 *
		 * @param string $type - Optional. [own, purchased, enrolled, etc]
		 * @param mixed $args - Optional.
		 *
		 * @return array|LP_Query_List_Table
		 */
		public function query_courses( $type = 'own', $args = '' ) {
			$query = false;
			switch ( $type ) {
				case 'purchased':
					$query = $this->_curd->query_purchased_courses( $this->get_user_data( 'id' ), $args );
					break;
				case 'enrolled':
					break;
				default:
					$query = $this->_curd->query_own_courses( $this->get_user_data( 'id' ), $args );
			}

			return $query;
		}

		/**
		 * @param mixed $args
		 *
		 * @return array|LP_Query_List_Table
		 */
		public function query_quizzes( $args = '' ) {
			return $this->_curd->query_quizzes( $this->get_user_data( 'id' ), $args );
		}

		/**
		 * Get the order is viewing details.
		 */
		public function get_view_order() {
			global $wp_query;
			$order = false;
			if ( isset( $wp_query->query_vars['view_id'] ) ) {
				$order = learn_press_get_order( $wp_query->query_vars['view_id'] );
			}

			return $order;
		}

		/**
		 * Get filters for own courses tab.
		 *
		 * @param string $current_filter
		 *
		 * @return array
		 */
		public function get_own_courses_filters( $current_filter = '' ) {
			$url      = $this->get_current_url();
			$defaults = array(
				'all'     => sprintf( '<a href="%s">%s</a>', esc_url( $url ), __( 'All', 'learnpress' ) ),
				'publish' => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'publish', $url ) ), __( 'Publish', 'learnpress' ) ),
				'pending' => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'pending', $url ) ), __( 'Pending', 'learnpress' ) )
			);

			if ( ! $current_filter ) {
				$keys           = array_keys( $defaults );
				$current_filter = reset( $keys );
			}

			foreach ( $defaults as $k => $v ) {
				if ( $k === $current_filter ) {
					$defaults[ $k ] = sprintf( '<span>%s</span>', strip_tags( $v ) );
				}
			}

			return apply_filters(
				'learn-press/profile/own-courses-filters',
				$defaults
			);
		}

		/**
		 * Get filters for purchased courses tab.
		 *
		 * @param string $current_filter
		 *
		 * @return array
		 */
		public function get_purchased_courses_filters( $current_filter = '' ) {
			$url      = $this->get_current_url( false );
			$defaults = array(
				'all'          => sprintf( '<a href="%s">%s</a>', esc_url( $url ), __( 'All', 'learnpress' ) ),
				'finished'     => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'finished', $url ) ), __( 'Finished', 'learnpress' ) ),
				'passed'       => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'passed', $url ) ), __( 'Passed', 'learnpress' ) ),
				'failed'       => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'failed', $url ) ), __( 'Failed', 'learnpress' ) ),
				'not-enrolled' => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'not-enrolled', $url ) ), __( 'Not enrolled', 'learnpress' ) )
			);

			if ( ! $current_filter ) {
				$keys           = array_keys( $defaults );
				$current_filter = reset( $keys );
			}

			foreach ( $defaults as $k => $v ) {
				if ( $k === $current_filter ) {
					$defaults[ $k ] = sprintf( '<span>%s</span>', strip_tags( $v ) );
				}
			}

			return apply_filters(
				'learn-press/profile/purchased-courses-filters',
				$defaults
			);
		}

		/**
		 * Get filters for purchased courses tab.
		 *
		 * @param string $current_filter
		 *
		 * @return array
		 */
		public function get_quizzes_filters( $current_filter = '' ) {
			$url      = $this->get_current_url( false );
			$defaults = array(
				'all'       => sprintf( '<a href="%s">%s</a>', esc_url( $url ), __( 'All', 'learnpress' ) ),
				'completed' => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'completed', $url ) ), __( 'Finished', 'learnpress' ) ),
				'passed'    => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'passed', $url ) ), __( 'Passed', 'learnpress' ) ),
				'failed'    => sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( 'filter-status', 'failed', $url ) ), __( 'Failed', 'learnpress' ) )
			);

			if ( ! $current_filter ) {
				$keys           = array_keys( $defaults );
				$current_filter = reset( $keys );
			}

			foreach ( $defaults as $k => $v ) {
				if ( $k === $current_filter ) {
					$defaults[ $k ] = sprintf( '<span>%s</span>', strip_tags( $v ) );
				}
			}

			return apply_filters(
				'learn-press/profile/quizzes-filters',
				$defaults
			);
		}

		/**
		 * @param bool $redirect
		 *
		 * @return string
		 */
		public function logout_url( $redirect = false ) {
			if ( $this->enable_login() ) {
				$profile_url = learn_press_get_page_link( 'profile' );
				$url         = add_query_arg( array(
					'lp-logout' => 'true',
					'nonce'     => wp_create_nonce( 'lp-logout' )
				), untrailingslashit( $profile_url ) );

				if ( $redirect !== false ) {
					$url = add_query_arg( 'redirect', urlencode( $redirect ), $url );
				}
			} else {
				$url = wp_logout_url( $redirect !== false ? $redirect : $this->get_current_url() );
			}

			return apply_filters( 'learn-press/logout-url', $url );
		}

		/**
		 * Echo class for main div.
		 *
		 * @param bool $echo
		 * @param string $more
		 *
		 * @return string
		 */
		public function main_class( $echo = true, $more = '' ) {
			$classes = array( 'lp-user-profile' );
			if ( $this->is_current_user() ) {
				$classes[] = 'current-user';
			}

			if ( ! is_user_logged_in() ) {
				$classes[] = 'guest';
			}

			if ( has_action( 'learn-press/before-user-profile' ) ) {
				$classes[] = 'has-sidebar';
			}

			$classes = LP_Helper::merge_class( $classes, $more );

			$class = ' class="' . join( ' ', apply_filters( 'learn-press/profile/class', $classes ) ) . '"';
			if ( $echo ) {
				echo $class;
			}

			return $class;
		}

		/**
		 * Return true if the tab is visible for current user.
		 *
		 * @param string $tab_key
		 * @param array $tab_data
		 *
		 * @return bool
		 */
		public function tab_is_visible_for_user( $tab_key, $tab_data = null ) {
			return $this->is_current_tab( $tab_key ) && $this->current_user_can( "view-tab-{$tab_key}" );
		}

		/**
		 * Return true if the section is visible for current user.
		 *
		 * @param string $section_key
		 * @param array $section_data
		 *
		 * @return bool
		 */
		public function section_is_visible_for_user( $section_key, $section_data = array() ) {
			return $this->current_user_can( "view-section-{$section_key}" ) && ! $this->is_hidden( $section_data );
		}

		/**
		 * @return array
		 */
		public function get_login_fields() {
			return LP_Shortcode_Login_Form::get_login_fields();
		}

		/**
		 * @return array
		 */
		public function get_register_fields() {
			return LP_Shortcode_Register_Form::get_register_fields();
		}

		/**
		 * TRUE if enable show login form in user profile if user is not logged in.
		 *
		 * @return bool
		 */
		public function enable_login() {
			return 'yes' === LP()->settings()->get( 'enable_login_profile' );
		}

		/**
		 * TRUE if enable show register form in user profile if user is not logged in.
		 *
		 * @return bool
		 */
		public function enable_register() {
			return 'yes' === LP()->settings()->get( 'enable_register_profile' );
		}

		/**
		 * Get queried user in profile link.
		 *
		 * @since 3.0.0
		 *
		 * @param string $return
		 *
		 * @return false|WP_User
		 */
		public static function get_queried_user( $return = '' ) {
			global $wp_query;
			if ( isset( $wp_query->query['user'] ) ) {
				$user = get_user_by( 'login', urldecode( $wp_query->query['user'] ) );
			} else {
				$user = get_user_by( 'id', get_current_user_id() );
			}

			return $return === 'id' && $user ? $user->ID : $user;
		}

		/**
		 * Return true if there is a name of user in profile link.
		 *
		 * @return bool
		 */
		public static function is_queried_user() {
			global $wp_query;

			return isset( $wp_query->query['user'] ) ? $wp_query->query['user'] : false;
		}

		public function get_upload_profile_src( $size = '' ) {
			$user = $this->get_user();

			$uploaded_profile_src = $user->get_data( 'uploaded_profile_src' );
			if ( empty( $uploaded_profile_src ) ) {
				if ( $profile_picture = $user->get_data( 'profile_picture' ) ) {
					$upload    = learn_press_user_profile_picture_upload_dir();
					$file_path = $upload['basedir'] . DIRECTORY_SEPARATOR . $profile_picture;
					if ( file_exists( $file_path ) ) {
						$uploaded_profile_src = $upload['baseurl'] . '/' . $profile_picture;
						// no cache for first time after avatar changed
						if ( $user->get_data( 'profile_picture_changed' ) == 'yes' ) {
							$uploaded_profile_src = add_query_arg( 'r', md5( rand( 0, 10 ) / rand( 1, 1000000 ) ), $user->get_data( 'uploaded_profile_src' ) );
							delete_user_meta( $user->get_id(), '_lp_profile_picture_changed' );
						}
					} else {
						$uploaded_profile_src = false;
					}

					$user->set_data( 'uploaded_profile_src', $uploaded_profile_src );
				}
			}

			return $uploaded_profile_src;
		}

		public function get_profile_picture( $type = '', $size = 96 ) {
			$user = $this->get_user();
			if ( $type == 'gravatar' ) {
				remove_filter( 'pre_get_avatar', 'learn_press_pre_get_avatar_callback', 1 );
			}

			if ( $profile_picture_src = $this->get_upload_profile_src( $size ) ) {
				$user->set_data( 'profile_picture_src', $profile_picture_src );
			}

			$avatar = get_avatar( $user->get_id(), $size, '', esc_attr__('User Avatar', 'learnpress'), array( 'gravatar' => false ) );

			if ( $type == 'gravatar' ) {
				add_filter( 'pre_get_avatar', 'learn_press_pre_get_avatar_callback', 1, 5 );
			}

			return $avatar;
		}

		/**
		 * Get an instance of LP_Profile for a user id
		 *
		 * @param $user_id
		 *
		 * @return LP_Profile mixed
		 */
		public static function instance( $user_id = 0 ) {

			if ( ! $user_id ) {
				if ( ! $user_id = self::get_queried_user( 'id' ) ) {
					$user_id = get_current_user_id();
				}
			}

			if ( empty( self::$_instances[ $user_id ] ) ) {
				self::$_instances[ $user_id ] = new self( $user_id );
			}

			return self::$_instances[ $user_id ];
		}
	}
}