<?php

use LearnPress\Filters\Course\CourseJsonFilter;
use LearnPress\Helpers\Template;
use LearnPress\Models\Courses;
use LearnPress\Models\UserItems\UserCourseModel;

/**
 * Class LP_REST_Admin_Tools_Controller
 *
 * @since 4.0.3
 * @author tungnx
 * @version 1.0.3
 */
class LP_REST_Admin_Tools_Controller extends LP_Abstract_REST_Controller {
	public function __construct() {
		$this->namespace = 'lp/v1/admin';
		$this->rest_base = 'tools';
		parent::__construct();
	}

	/**
	 * Register rest routes.
	 */
	public function register_routes() {
		$this->routes = array(
			'create-indexs'        => array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'create_indexes' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'list-tables-indexs'   => array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'get_list_tables_indexs' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'clean-tables'         => array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'clean_tables' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'admin-notices'        => array(
				array(
					'methods'             => WP_REST_Server::ALLMETHODS,
					'callback'            => array( $this, 'admin_notices' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'search-course'        => array(
				array(
					'methods'             => WP_REST_Server::ALLMETHODS,
					'callback'            => array( $this, 'search_courses' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'search-user'          => array(
				array(
					'methods'             => WP_REST_Server::ALLMETHODS,
					'callback'            => array( $this, 'search_users' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'search-roles'         => array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'search_roles' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'assign-user-course'   => array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'assign_courses_to_users' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
			'unassign-user-course' => array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'unassign_user_from_course' ),
					'permission_callback' => array( $this, 'check_permission' ),
				),
			),
		);

		parent::register_routes();
	}

	/**
	 * Create create_indexes.
	 *
	 * @param WP_REST_Request $request .
	 *
	 * @return void
	 */
	public function create_indexes( WP_REST_Request $request ) {
		$response = new LP_REST_Response();
		$lp_db    = LP_Database::getInstance();

		try {
			$tables_valid = [
				$lp_db->tb_lp_user_items,
				$lp_db->tb_lp_user_itemmeta,
				$lp_db->tb_lp_quiz_questions,
				$lp_db->tb_lp_question_answers,
				$lp_db->tb_lp_question_answermeta,
				$lp_db->tb_lp_order_items,
				$lp_db->tb_lp_order_itemmeta,
				$lp_db->tb_lp_sections,
				$lp_db->tb_lp_section_items,
			];
			$table        = $request->get_param( 'table' );
			$tables       = $request->get_param( 'tables' );

			$lp_db->wpdb->query( 'SET autocommit = 0' );

			if ( empty( $tables ) ) {
				throw new Exception( 'Param invalid!' );
			} else {
				$table_keys = array_keys( $tables );
			}

			if ( ! array_key_exists( $table, $tables )
				|| ! in_array( $table, $tables_valid ) ) {
				throw new Exception( 'Table invalid!' );
			}

			// Create Indexs for a table.
			if ( $table === $lp_db->tb_lp_question_answermeta ) {
				$lp_db->drop_indexs_table( $lp_db->tb_lp_question_answermeta );
				$lp_db->wpdb->query(
					"
					ALTER TABLE {$lp_db->tb_lp_question_answermeta}
					ADD INDEX question_answer_meta (`learnpress_question_answer_id`, `meta_key`(150))
					"
				);
				$lp_db->check_execute_has_error();
			} elseif ( $table === $lp_db->tb_lp_section_items ) {
				$lp_db->drop_indexs_table( $lp_db->tb_lp_section_items );

				$lp_db->wpdb->query(
					"
					ALTER TABLE {$lp_db->tb_lp_section_items}
					ADD INDEX section_item (`section_id`, `item_id`)
					"
				);
				$lp_db->check_execute_has_error();
			} else {
				$lp_db->add_indexs_table( $table, $tables[ $table ] );
			}

			// Set next table key.
			$index_key = array_search( $table, $table_keys );
			++ $index_key;

			if ( ! array_key_exists( $index_key, $table_keys ) ) {
				$response->status        = 'finished';
				$response->data->percent = 100;
			} else {
				$response->data->table   = $table_keys[ $index_key ];
				$response->data->percent = 100;
				$response->status        = 'success';
			}
		} catch ( Exception $e ) {
			$response->message = $e->getMessage();
		}

		wp_send_json( $response );
	}

	public function get_list_tables_indexs( WP_REST_Request $request ) {
		$response = new LP_REST_Response();
		$lp_db    = LP_Database::getInstance();

		$tables_indexes = array(
			$lp_db->tb_lp_user_items          => array(
				'user_id',
				'item_id',
				'item_type',
				'status',
				'ref_type',
				'ref_id',
				'parent_id',
			),
			$lp_db->tb_lp_user_itemmeta       => array( 'learnpress_user_item_id', 'meta_key', 'meta_value' ),
			$lp_db->tb_lp_quiz_questions      => array( 'quiz_id', 'question_id' ),
			$lp_db->tb_lp_question_answers    => array( 'question_id' ),
			$lp_db->tb_lp_question_answermeta => '',
			$lp_db->tb_lp_order_items         => array( 'order_id', 'item_id', 'item_type' ),
			$lp_db->tb_lp_order_itemmeta      => array( 'learnpress_order_item_id', 'meta_key', 'meta_value' ),
			$lp_db->tb_lp_sections            => array( 'section_course_id' ),
			$lp_db->tb_lp_section_items       => '',
		);

		$response->data->tables = $tables_indexes;
		$response->data->table  = $lp_db->tb_lp_user_items;
		$response->status       = 'success';

		wp_send_json( $response );
	}

	public function clean_tables( WP_REST_Request $request ) {
		$response            = new LP_REST_Response();
		$lp_db_sessions      = LP_Sessions_DB::getInstance();
		$tables              = $request->get_param( 'tables' );
		$item_before_process = $request->get_param( 'itemtotal' );
		if ( empty( $tables ) ) {
			throw new Exception( 'Param invalid!' );
		}

		if ( empty( $item_before_process ) ) {
			$item_before_process = 0;
		}

		if ( $item_before_process == 0 ) {
			$response->data->percent = 100;
			$response->status        = 'finished';
			wp_send_json( $response );
		}

		try {
			// Delete result in table select
			if ( $tables == 'learnpress_sessions' ) {
				$lp_db_sessions->delete_rows();
				// check the number of lines remaining after each query
				$item_after_process        = $lp_db_sessions->count_row_db_sessions();
				$response->data->processed = $item_before_process - $item_after_process;
				$percent                   = ( ( $item_before_process - $item_after_process ) / $item_before_process ) * 100;
				$response->data->percent   = number_format_i18n( $percent, '2' );
			}
			if ( $response->data->percent == 100 ) {
				$response->status = 'finished';
			} else {
				$response->status = 'success';
			}
		} catch ( Exception $e ) {
			$response->message = $e->getMessage();
		}
		wp_send_json( $response );
	}

	/**
	 * Show admin notices.
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return void
	 * @since 4.1.7.3.2
	 * @version 1.0.1
	 */
	public function admin_notices( WP_REST_Request $request ) {
		$response = new LP_REST_Response();
		$content  = '';

		try {
			$params                = $request->get_params();
			$admin_notices_dismiss = get_option( 'lp_admin_notices_dismiss', [] );
			$lp_beta_version_info  = LP_Admin_Notice::check_lp_beta_version();

			if ( isset( $params['dismiss'] ) ) {
				if ( $lp_beta_version_info ) {
					// Store version of LP beta to session.
					learn_press_setcookie( 'lp_beta_version', $lp_beta_version_info['version'] ?? 0 );
				}

				$admin_notices_dismiss[ $params['dismiss'] ] = $params['dismiss'];
				update_option( 'lp_admin_notices_dismiss', $admin_notices_dismiss );
				$response->message = __( 'Dismissed!', 'learnpress' );
			} else {
				$show_notice_lp_beta_version = false;
				/**
				 * Check if LP beta version is not dismissed or dismissed version lower than current version, will bet to show notice.
				 */
				if ( $lp_beta_version_info && ! isset( $_GET['tab'] ) &&
					( ! isset( $_COOKIE['lp_beta_version'] ) || version_compare( $_COOKIE['lp_beta_version'], $lp_beta_version_info['version'], '<' ) ) ) {
					$show_notice_lp_beta_version = true;
				}

				$rules = apply_filters(
					'learn-press/admin-notices',
					[
						// Check wp_remote call success.
						'check_wp_remote'            => [
							'template' => 'admin-notices/wp-remote.php',
							'check'    => LP_Admin_Notice::check_wp_remote(),
						],
						// Check name plugin base.
						'check_plugin_base'          => [
							'template' => 'admin-notices/plugin-base.php',
							'check'    => LP_Admin_Notice::check_plugin_base(),
						],
						// Show beta version of LP.
						'lp-beta-version'            => [
							'template'      => 'admin-notices/beta-version.php',
							'check'         => $show_notice_lp_beta_version,
							'info'          => $lp_beta_version_info,
							'allow_dismiss' => 1,
						],
						// Show message needs upgrades database compatible with LP version current.
						'lp-upgrade-db'              => [
							'template' => 'admin-notices/upgrade-db.php',
							'check'    => LP_Updater::instance()->check_lp_db_need_upgrade(),
						],
						// Show message wrong permalink structure.
						'lp-permalink'               => [
							'template' => 'admin-notices/permalink-wrong.php',
							'check'    => ! get_option( 'permalink_structure' ),
						],
						// Show notice setup wizard.
						'lp-setup-wizard'            => [
							'template'      => 'admin-notices/setup-wizard.php',
							'check'         => ! get_option( 'learn_press_setup_wizard_completed', false )
												&& ! isset( $admin_notices_dismiss['lp-setup-wizard'] ),
							'allow_dismiss' => 1,
						],
						// Show notification addons new version.
						'lp-addons-new-version'      => [
							'template'      => 'admin-notices/addons-new-version.php',
							'addons'        => LP_Manager_Addons::instance()->list_addon_new_version(),
							'allow_dismiss' => 1,
							'dismiss'       => isset( $admin_notices_dismiss['lp-addons-new-version'] ),
						],
						// Show notification addons purchased need extend.
						'lp-addons-purchased-extend' => [
							'template'      => 'admin-notices/addons-purchased-extend.php',
							'need-extend'   => LP_Manager_Addons::instance()->check_addons_purchased_need_extend(),
							'allow_dismiss' => 1,
							'dismiss'       => isset( $admin_notices_dismiss['lp-addons-purchased-extend'] ),
						],
					]
				);

				ob_start();
				foreach ( $rules as $template_data ) {
					Template::instance()->get_admin_template(
						$template_data['template'] ?? '',
						[ 'data' => $template_data ]
					);
				}
			}

			$response->status        = 'success';
			$response->data->content = ob_get_clean();
		} catch ( Exception $e ) {
			ob_end_clean();
			$response->message = $e->getMessage();
		}

		wp_send_json( $response );
	}


	/**
	 * Search courses by title
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return LP_REST_Response
	 * @since 4.2.5
	 * @version 1.0.2
	 */
	public function search_courses( WP_REST_Request $request ): LP_REST_Response {
		ini_set( 'max_execution_time', HOUR_IN_SECONDS );

		$response = new LP_REST_Response();
		try {
			$params  = $request->get_params();
			$ids_str = LP_Helper::sanitize_params_submitted( $params['ids'] ?? '' );
			//$not_ids_str         = LP_Helper::sanitize_params_submitted( $params['not_ids'] ?? '' );
			$not_ids_str         = LP_Helper::sanitize_params_submitted( $params['id_not_in'] ?? '' );
			$current_ids         = (array) LP_Helper::sanitize_params_submitted( $params['current_ids'] ?? [] );
			$total_rows          = 0;
			$filter              = new CourseJsonFilter();
			$filter->limit       = 20;
			$filter->only_fields = [ 'ID', 'post_title' ];
			$filter->post_status = [ 'publish' ];
			$filter->post_title  = LP_Helper::sanitize_params_submitted( $params['search'] ?? '' );
			$filter->page        = LP_Helper::sanitize_params_submitted( $params['paged'] ?? 1, 'int' );

			if ( ! empty( $ids_str ) ) {
				$filter->ids = explode( ',', $ids_str );
			}

			if ( ! empty( $not_ids_str ) ) {
				$not_ids         = explode( ',', $not_ids_str );
				$not_ids         = array_map( 'absint', $not_ids );
				$not_ids         = implode( ',', $not_ids );
				$filter->where[] = "AND ID NOT IN ({$not_ids})";
			}

			// Get all courses.
			$courses = Courses::get_list_courses( $filter, $total_rows );

			// Get selected courses.
			$courses_current = [];
			if ( ! empty( $current_ids ) ) {
				$current_ids                     = array_map( 'absint', $current_ids );
				$filter_current_ids              = new LP_Course_Filter();
				$filter_current_ids->limit       = -1;
				$filter_current_ids->only_fields = [ 'ID', 'post_title' ];
				$filter->post_status             = [ 'publish' ];
				$filter_current_ids->post_ids    = $current_ids;
				$courses_current                 = Courses::get_courses( $filter_current_ids );
			}

			$check_ids    = [];
			$courses_rs   = [];
			$courses_data = array_merge( $courses_current, $courses );
			foreach ( $courses_data as $course ) {
				if ( ! in_array( $course->ID, $check_ids ) ) {
					$courses_rs[] = $course;
					$check_ids[]  = $course->ID;
				}
			}
			$response->data->courses     = $courses_rs;
			$response->data->total_pages = LP_Database::get_total_pages( $filter->limit, $total_rows );
			$response->status            = 'success';
		} catch ( Throwable $e ) {
			error_log( __METHOD__ . ': ' . $e->getMessage() );
		}

		ini_set( 'max_execution_time', LearnPress::$time_limit_default_of_sever );
		return $response;
	}

	/**
	 * Search user by name or email
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return LP_REST_Response
	 * @since 4.2.5
	 * @version 1.0.2
	 */
	public function search_users( WP_REST_Request $request ): LP_REST_Response {
		ini_set( 'max_execution_time', HOUR_IN_SECONDS );

		$response = new LP_REST_Response();
		try {
			$params        = $request->get_params();
			$search_string = LP_Helper::sanitize_params_submitted( $params['search'] ?? '' );
			$current_ids   = LP_Helper::sanitize_params_submitted( $params['current_ids'] ?? '' );
			$number        = LP_Helper::sanitize_params_submitted( $params['number'] ?? 20 );
			$args_get_user = array(
				'search_columns' => array(
					'user_login',
					'user_nicename',
					'user_email',
				),
				'number'         => $number,
				'fields'         => array( 'ID', 'display_name', 'user_login', 'user_email' ),
			);

			if ( ! empty( $search_string ) ) {
				$args_get_user['search'] = "*{$search_string}*";
			}

			$role_in = sanitize_text_field( $params['role_in'] ?? '' );
			if ( ! empty( $role_in ) ) {
				$args_get_user['role__in'] = explode( ',', $role_in );
			}

			$id_not_in = sanitize_text_field( $params['id_not_in'] ?? '' );
			if ( ! empty( $id_not_in ) ) {
				$args_get_user['exclude'] = explode( ',', $id_not_in );
			}

			// Get only users selected.
			$users_selected = [];
			$total_selected = 0;
			if ( ! empty( $current_ids ) ) {
				if ( ! is_array( $current_ids ) ) {
					$current_ids_array = explode( ',', $current_ids );
				} else {
					$current_ids_array = $current_ids;
				}
				$args_get_user_current = array(
					'include' => $current_ids_array,
					'fields'  => array( 'ID', 'display_name', 'user_login', 'user_email' ),
				);
				$users_selected_query  = new WP_User_Query( $args_get_user_current );
				$users_selected        = $users_selected_query->get_results();
				$total_selected        = $users_selected_query->get_total() ?? 0;
			}

			$args_get_user = apply_filters( 'learn-press/rest-admin-tools/args-search-users', $args_get_user );

			// Get list users for search.
			$args_get_user['count_total'] = true;
			$users_search_query           = new WP_User_Query( $args_get_user );
			$users_search                 = $users_search_query->get_results() ?? [];
			$total_search                 = $users_search_query->get_total() ?? 0;
			$users                        = array_merge( $users_selected, $users_search );

			$response->data->users       = $users;
			$total                       = $total_selected + $total_search;
			$response->data->total_pages = LP_Database::get_total_pages( $number, $total );
			$response->status            = 'success';
		} catch ( Throwable $e ) {
			error_log( __METHOD__ . ': ' . $e->getMessage() );
		}

		ini_set( 'max_execution_time', LearnPress::$time_limit_default_of_sever );
		return $response;
	}

	/**
	 * Search roles
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return LP_REST_Response
	 */
	public function search_roles( WP_REST_Request $request ): LP_REST_Response {
		$response = new LP_REST_Response();
		try {
			global $wp_roles;
			$data  = [];
			$roles = $wp_roles->get_names();
			foreach ( $roles as $key => $value ) {
				$data[] = array(
					'slug' => $key,
					'name' => $value,
				);
			}
			$response->data   = $data;
			$response->status = 'success';
		} catch ( Throwable $e ) {
			error_log( $e->getMessage() );
		}

		return $response;
	}

	/**
	 * Enroll users to courses
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return LP_REST_Response
	 * @since 4.2.5
	 * @version 1.0.1
	 */
	public function assign_courses_to_users( WP_REST_Request $request ): LP_REST_Response {
		$response = new LP_REST_Response();

		try {
			$params     = $request->get_params();
			$data       = $params['data'] ?? [];
			$page       = $params['page'] ?? 1;
			$total_page = $params['totalPage'] ?? 1;

			if ( ! is_array( $data ) ) {
				throw new Exception( 'Data assign is invalid' );
			}

			if ( empty( $data ) ) {
				throw new Exception( 'Please choose User and Course you want to Assign' );
			}

			foreach ( $data as $user_course ) {
				$user_id   = $user_course['user_id'] ?? 0;
				$course_id = $user_course['course_id'] ?? 0;
				if ( ! $user_id || ! $course_id ) {
					throw new Exception( 'User or Course is invalid', 'learnpress' );
				}

				$can_handle = apply_filters(
					'learn-press/assign-courses-to-users/can-handle',
					true,
					$user_id,
					$course_id
				);
				if ( ! $can_handle ) {
					continue;
				}

				// Delete data user who already enrolled this course.
				LP_User_Items_DB::getInstance()->delete_user_items_old( $user_id, $course_id );
				// End

				// Insert new data user to user_item table.
				$user_course_new             = new UserCourseModel();
				$user_course_new->user_id    = $user_id;
				$user_course_new->item_id    = $course_id;
				$user_course_new->item_type  = LP_COURSE_CPT;
				$user_course_new->ref_type   = '';
				$user_course_new->status     = LP_COURSE_ENROLLED;
				$user_course_new->graduation = LP_COURSE_GRADUATION_IN_PROGRESS;
				$user_course_new->start_time = gmdate( LP_Datetime::$format, time() );
				$user_course_new->save();
				// End

				do_action( 'learn-press/assigned-course-to-user', $user_course_new );
			}

			if ( $page == $total_page ) {
				$response->status        = 'finished';
				$response->data->percent = 100 . '%';
			} else {
				$response->status        = 'success';
				$response->data->page    = $page;
				$response->data->percent = ( $page / $total_page ) * 100 . '%';
			}

			$response->message = __( 'Assign users to courses successfully.', 'learnpress' );
		} catch ( Throwable $e ) {
			$response->message = $e->getMessage();
		}

		return $response;
	}

	/**
	 * Enroll users to courses
	 *
	 * @param WP_REST_Request $request
	 *
	 * @return LP_REST_Response
	 * @since 4.2.5.6
	 * @version 1.0.0
	 */
	public function unassign_user_from_course( WP_REST_Request $request ): LP_REST_Response {
		$response = new LP_REST_Response();

		try {
			$params     = $request->get_params();
			$data       = $params['data'] ?? [];
			$page       = $params['page'] ?? 1;
			$total_page = $params['totalPage'] ?? 1;

			if ( ! is_array( $data ) ) {
				throw new Exception( 'Data assign is invalid' );
			}

			if ( empty( $data ) ) {
				throw new Exception( 'Please choose User and Course you want to Unassign' );
			}

			foreach ( $data as $user_course ) {
				$user_id   = $user_course['user_id'] ?? 0;
				$course_id = $user_course['course_id'] ?? 0;
				if ( ! $user_id || ! $course_id ) {
					throw new Exception( 'User or Course is invalid', 'learnpress' );
				}

				// Delete data user who already enrolled this course.
				LP_User_Items_DB::getInstance()->delete_user_items_old( $user_id, $course_id );
				// End
			}

			if ( $page === $total_page ) {
				$response->status        = 'finished';
				$response->data->percent = 100 . '%';
			} else {
				$response->status        = 'success';
				$response->data->page    = $page;
				$response->data->percent = number_format( ( $page / $total_page ) * 100, 2 ) . '%';
			}

			$response->message = __( 'Unassigned users from courses successfully.', 'learnpress' );
		} catch ( Throwable $e ) {
			$response->message = $e->getMessage();
		}

		return $response;
	}

	/**
	 * Check permission for request.
	 *
	 * @return bool
	 */
	public function check_permission(): bool {
		$permission = current_user_can( ADMIN_ROLE );
		$permission = apply_filters( 'learn-press/api-admin-tools/permission', $permission );

		return $permission;
	}
}
