<?php

/**

 * Load demo data

 */

if ( ! class_exists( 'Bws_Demo_Data' ) ) {

	class Bws_Demo_Data {

		private $bws_plugin_text_domain, $bws_plugin_prefix, $bws_plugin_page, $bws_plugin_name, $bws_plugin_basename, $bws_demo_options, $bws_demo_folder;

		public function __construct( $args ) {

			$plugin_dir_array      	= explode( '/', $args['plugin_basename'] );

			$this->bws_plugin_basename 		= $args['plugin_basename'];

			$this->bws_plugin_prefix		= $args['plugin_prefix'];

			$this->bws_plugin_name			= $args['plugin_name'];

			$this->bws_plugin_page			= $args['plugin_page'];

			$this->bws_demo_folder			= $args['demo_folder'];

			$this->bws_plugin_text_domain 	= $plugin_dir_array[0];

			$this->bws_demo_options 		= get_option( $this->bws_plugin_prefix . 'demo_options' );

		}

		/**

		 * Display "Install demo data" or "Uninstal demo data" buttons

		 * @return void

		 */

		function bws_show_demo_button( $form_info ) {

			if ( ! ( is_multisite() && is_network_admin() ) ) {

				if ( empty( $this->bws_demo_options ) ) {

					$value        = 'install';

					$button_title = __( 'Install Demo Data', $this->bws_plugin_text_domain );

				} else {

					$value        = 'remove';

					$button_title = __( 'Remove Demo Data', $this->bws_plugin_text_domain );

					$form_info   = __( 'Delete demo data and restore previous plugin settings.', $this->bws_plugin_text_domain );

				} ?>

				<button class="button" name="bws_handle_demo" value="<?php echo $value; ?>"><?php echo $button_title; ?></button>

				<div class="bws_info"><?php echo $form_info; ?></div>

			<?php }

		}

		/**

		 * Display page for confirmation action to install demo data

		 * @return void

		 */

		function bws_demo_confirm() {

			if ( 'install' == $_POST['bws_handle_demo'] ) {

				$button_title = __( 'Yes, install demo data', $this->bws_plugin_text_domain );

				$label        = __( 'Are you sure you want to install demo data?', $this->bws_plugin_text_domain );

			} else {

				$button_title = __( 'Yes, remove demo data', $this->bws_plugin_text_domain );

				$label        = __( 'Are you sure you want to remove demo data?', $this->bws_plugin_text_domain );

			} ?>

			<div>

				<p><?php echo $label; ?></p>

				<form method="post" action="">

					<p>

						<button class="button button-primary" name="bws_<?php echo $_POST['bws_handle_demo']; ?>_demo_confirm" value="true"><?php echo $button_title; ?></button>

						<button class="button" name="bws_<?php echo $_POST['bws_handle_demo']; ?>_demo_deny" value="true"><?php _e( 'No, go back to the settings page', $this->bws_plugin_text_domain ) ?></button>

						<?php wp_nonce_field( $this->bws_plugin_basename, 'bws_settings_nonce_name' ); ?>

					</p>

				</form>

			</div>

		<?php }

		/**

		 * @param bool $install_callback

		 * @param bool $remove_callback

		 *

		 * @return array

		 */

		function bws_handle_demo_data( $install_callback = false, $remove_callback = false ) {

			if ( isset( $_POST['bws_install_demo_confirm'] ) && check_admin_referer( $this->bws_plugin_basename, 'bws_settings_nonce_name' ) ) {

				return $this->bws_install_demo_data( $install_callback );

			} elseif ( isset( $_POST['bws_remove_demo_confirm'] ) && check_admin_referer( $this->bws_plugin_basename, 'bws_settings_nonce_name' ) ) {

				return $this->bws_remove_demo_data( $remove_callback );

			} else {

				return false;

			}

		}

		/**

		 * Load demo data

		 *

		 * @param bool|string $callback

		 *

		 * @return array $message   message about the result of the query

		 */

		function bws_install_demo_data( $callback = false ) {

			global $wpdb;

			/* get demo data*/

			$message   = array(

				'error'   => NULL,

				'done'    => NULL,

				'options' => NULL

			);

			$demo_data = array(

				'posts'							=> NULL,

				'attachments'					=> NULL,

				'distant_attachments'			=> NULL,

				'distant_attachments_metadata'	=> NULL,

				'terms'							=> NULL,

				'options'						=> NULL

			);

			$error   = 0;

			$page_id = $posttype_post_id = $post_id = '';

			/* get demo data */

			@include_once( $this->bws_demo_folder . 'demo-data.php' );

			$received_demo_data = bws_demo_data_array();

			/*

			 * load demo data

			 */

			if ( empty( $received_demo_data ) ) {

				$message['error'] = __( 'Can not get demo data.', $this->bws_plugin_text_domain );

			} else {

				$demo_data = array_merge( $demo_data, $received_demo_data );

				/*

				 * check if demo options already loaded

				 */

				if ( ! empty( $this->bws_demo_options ) ) {

					$message['error'] = __( 'Demo settings are already installed.', $this->bws_plugin_text_domain );

					return $message;

				}

				/*

				 * load demo options

				 */

				if ( ! empty( $demo_data['options'] ) ) {

					$plugin_options = get_option( $this->bws_plugin_prefix . 'options' );

					/* remember old plugin options */

					if ( ! empty( $plugin_options ) ) {

						$this->bws_demo_options['options'] = $plugin_options;

						$demo_data['options']['display_demo_notice'] = 0;

						update_option( $this->bws_plugin_prefix . 'options', array_merge( $plugin_options, $demo_data['options'] ) );

					}

				} else {

					/* remove demo notice */

					$plugin_options = get_option( $this->bws_plugin_prefix . 'options' );

					if ( 0 != $plugin_options['display_demo_notice'] ) {

						$plugin_options['display_demo_notice'] = 0;

						update_option( $this->bws_plugin_prefix . 'options', $plugin_options );

					}

				}

				/*

				 * load demo posts

				 */

				if ( ! empty( $demo_data['posts'] ) ) {

					$wp_upload_dir      = wp_upload_dir();

					$attachments_folder = $this->bws_demo_folder . 'images';

					/*

					 * load demo terms

					 */

					if ( ! empty( $demo_data['terms'] ) ) {

						foreach ( $demo_data['terms'] as $taxonomy_name => $terms_values_array ) {

							foreach ( $terms_values_array as $term_key => $term_value_single ) {

								$term_exists = term_exists( $term_key, $taxonomy_name );

								if ( ! $term_exists ) {

									$term_id = wp_insert_term(

										$term_value_single, /* the term. */

										$taxonomy_name, /* the taxonomy. */

										array(

											'slug' 			=> $term_key

										)

									);

									if ( is_wp_error( $term_id ) ) {

										$error ++;

									} else {

										$term_IDs[ $taxonomy_name ][ $term_key ] = $term_id['term_id'];

										$term_IDs_new[ $taxonomy_name ][ $term_key ] = $term_id['term_id'];

									}

								} else {

									$term_IDs[ $taxonomy_name ][ $term_key ] = $term_exists['term_id'];

								}

							}

						}

						if ( ! empty( $term_IDs_new ) ) {

							$this->bws_demo_options['terms'] = isset( $this->bws_demo_options['terms'] ) ? array_merge( $this->bws_demo_options['terms'], $term_IDs_new ) : $term_IDs_new;

						}

					}

					/*

					 * load demo posts

					 */

					foreach ( $demo_data['posts'] as $post ) {

						if ( preg_match( '/{last_post_id}/', $post['post_content'] ) && ! empty( $post_id ) ) {

							$post['post_content'] = preg_replace( '/{last_post_id}/', $post_id, $post['post_content'] );

						}

						if ( preg_match( '/{template_page}/', $post['post_content'] ) ) {

							if ( empty( $page_id ) && ! empty( $page_template ) ) {

								$page_id = intval( $wpdb->get_var( "SELECT `post_id` FROM $wpdb->postmeta WHERE `meta_key` LIKE '_wp_page_template' AND `meta_value` LIKE '" . $page_template . "' LIMIT 1" ) );

							}

							if ( ! empty( $page_id ) ) {

								$post['post_content'] = preg_replace( '/{template_page}/', '<a href="' . get_permalink( $page_id ) . '">' . get_the_title( $page_id ) . '</a>', $post['post_content'] );

							}

						}

						/* insert current post */

						$post_id = wp_insert_post( $post );

						if ( 'post' == $post['post_type'] ) {

							$posttype_post_id = $post_id;

						}

						/* add taxonomy for posttype */

						if ( 'post' != $post['post_type'] && 'page' != $post['post_type'] && ! empty( $term_IDs ) ) {

							foreach ( $term_IDs as $taxonomy_name => $term_array ) {

								if ( isset( $post['terms'][ $taxonomy_name ] ) ) {

									$selected_terms = $post['terms'][ $taxonomy_name ];

								} else {

									$selected_terms = array();

									$selected_terms[] = intval( $term_array[ array_rand( $term_array ) ] );

								}

								if ( ! wp_set_object_terms( $post_id, $selected_terms, $taxonomy_name, false ) )

									$error ++;

							}

						}

						$attach_id = 0;

						if ( is_wp_error( $post_id ) || 0 == $post_id ) {

							$error ++;

						} else {

							/* remember post ID */

							$this->bws_demo_options['posts'][ $post_id ] = get_post_modified_time( 'U', false, $post_id, false );

							$featured_attach_id = '';

							/*

							 * load post attachments

							 */

							if ( ! empty( $post['attachments_folder'] ) ) {

								$attachments_list = @scandir( $attachments_folder . '/' . $post['attachments_folder'] );

								if ( 2 < count( $attachments_list ) ) {

									foreach ( $attachments_list as $attachment ) {

										$file = $attachments_folder . '/' . $post['attachments_folder'] . '/' . $attachment;

										/* insert current attachment */

										/* Check if file is image */

										$file_data = @getimagesize( $file );

										$bws_is_image = ! ( $file_data || in_array( $file_data[2], array( 1, 2, 3 ) ) ) ? false : true;

										if ( $bws_is_image ) {

											$destination   = $wp_upload_dir['path'] . '/' . $this->bws_plugin_prefix . 'demo_' . $attachment; /* path to new file */

											$wp_filetype   = wp_check_filetype( $file, null ); /* Mime-type */

											if ( copy( $file, $destination ) ) { /* if attachment copied */

												$attachment_data = array(

													'post_mime_type' => $wp_filetype['type'],

													'post_title'     => $attachment,

													'post_content'   => '',

													'post_status'    => 'inherit'

												);

												/* insert attschment in to database */

												$attach_id = wp_insert_attachment( $attachment_data, $destination, $post_id );

												if ( 0 != $attach_id ) {

													if ( empty( $featured_attach_id ) )

														$featured_attach_id = $attach_id;

													/* remember attachment ID */

													$this->bws_demo_options['attachments'][] = $attach_id;

													/* insert attachment metadata */

													$attach_data = wp_generate_attachment_metadata( $attach_id, $destination );

													wp_update_attachment_metadata( $attach_id, $attach_data );

													/* insert additional metadata */

													if ( isset( $demo_data['attachments'][ $attachment ] ) ) {

														foreach ( $demo_data['attachments'][ $attachment ] as $meta_key => $meta_value ) {

															if ( '{get_lorem_ipsum}' == $meta_value )

																$meta_value = $this->bws_get_lorem_ipsum();

															add_post_meta( $attach_id, $meta_key, $meta_value );

														}

													}

												} else {

													$error ++;

												}

											} else {

												$error ++;

											}

										}

									}

								}

							}

							/*

							 * load post attachments

							 */

							if ( ! empty( $post['distant_attachments'] ) ) {

								foreach ( $post['distant_attachments'] as $attachment_name ) {

									if ( isset( $demo_data['distant_attachments_metadata'][ $attachment_name ] ) ) {

										$data = $demo_data['distant_attachments_metadata'][ $attachment_name ];

										$attachment_data = array(

											'post_mime_type' => $data['mime_type'],

											'post_title'     => $data['title'],

											'post_content'   => '',

											'post_status'    => 'inherit'

										);

										/* insert attschment in to database */

										$attach_id = wp_insert_attachment( $attachment_data, $data['url'], $post_id );

										if ( 0 != $attach_id ) {

											if ( empty( $featured_attach_id ) ) {

												$featured_attach_id = $attach_id;

											}

											/* remember attachment ID */

											$this->bws_demo_options['distant_attachments'][ $attachment_name ] = $attach_id;

											/* insert attachment metadata */

											$imagesize = @getimagesize( $data['url'] );

											$sizes = ( isset( $data['sizes'] ) ) ? $data['sizes'] : array();

											$attach_data = array(

												'width' 	=> $imagesize[0],

												'height' 	=> $imagesize[1],

												'file' 		=> $data['url'],

												'sizes' 	=> $sizes

											);

											wp_update_attachment_metadata( $attach_id, $attach_data );

											/* insert additional metadata */

											if ( isset( $demo_data['distant_attachments'][ $attachment_name ] ) ) {

												foreach ( $demo_data['distant_attachments'][ $attachment_name ] as $meta_key => $meta_value ) {

													if ( '{get_lorem_ipsum}' == $meta_value ) {

														$meta_value = $this->bws_get_lorem_ipsum();

													}

													add_post_meta( $attach_id, $meta_key, $meta_value );

												}

											}

										} else {

											$error ++;

										}

									} else {

										$error ++;

									}

								}

							}

							/* insert additional post meta */

							if ( isset( $post['post_meta'] ) && ! empty( $post['post_meta'] ) ) {

								foreach ( $post['post_meta'] as $meta_key => $meta_value ) {

									add_post_meta( $post_id, $meta_key, $meta_value );

								}

							}

							/* set template for post type "page" */

							if ( ! empty( $post['page_template'] ) ) {

								update_post_meta( $post_id, '_wp_page_template', $post['page_template'] );

								$page_id = $post_id;

								$page_template = $post['page_template'];

							}

							/* first inserted image is thummbnail for post */

							if ( ! empty( $featured_attach_id ) )

								update_post_meta( $post_id, '_thumbnail_id', $featured_attach_id );

						}

					}

					/*

					 * Save demo options

					 */

					add_option( $this->bws_plugin_prefix . 'demo_options', $this->bws_demo_options );

					if ( 0 == $error ) {

						$message['done'] = __( 'Demo data successfully installed.', $this->bws_plugin_text_domain );

						if ( ! empty( $posttype_post_id ) ) {

							$message['done'] .= '<br />' . __( 'View post with shortcodes', $this->bws_plugin_text_domain ) . ':&nbsp;<a href="'.  get_permalink( $posttype_post_id ) . '" target="_blank">' . get_the_title( $posttype_post_id ) . '</a>';

						}

						if ( ! empty( $page_id ) ) {

							$message['done'] .= '<br />' . __( 'View page with examples', $this->bws_plugin_text_domain ) . ':&nbsp;<a href="'.  get_permalink( $page_id ) . '" target="_blank">' . get_the_title( $page_id ) . '</a>';

						}

						if ( ! empty( $demo_data['options'] ) )

							$message['options'] = $demo_data['options'];

						if ( $callback && function_exists( $callback ) )

							call_user_func( $callback );

					} else {

						$message['error'] = __( 'Demo data installation proceeded with some errors.', $this->bws_plugin_text_domain );

					}

				} else {

					$message['error'] = __( 'Post data is missing.', $this->bws_plugin_text_domain );

				}

			}

			return $message;

		}

		/**

		 * Change url for distant attachments

		 * @return $url   string

		 */

		function bws_wp_get_attachment_url( $url, $id ) {

			if ( ! empty( $this->bws_demo_options['distant_attachments'] ) && in_array( $id, $this->bws_demo_options['distant_attachments'] ) ) {

				$url = substr( $url, strpos( $url, 'https://' ) );

			}