response[ $plugin ] = (object) $_plugin;
				}
			}

			return $transient;
		}

		/**
		 * Inject API data for premium plugins.
		 *
		 * @since 1.0.0
		 *
		 * @param bool   $response Always false.
		 * @param string $action The API action being performed.
		 * @param object $args Plugin arguments.
		 * @return bool|object $response The plugin info or false.
		 */
		public function plugins_api( $response, $action, $args ) {
			self::set_plugins( true );

			// Process premium theme updates.
			if ( 'plugin_information' === $action && isset( $args->slug ) ) {
				$installed = array_merge( self::$plugins['active'], self::$plugins['installed'] );
				foreach ( $installed as $slug => $plugin ) {
					if ( dirname( $slug ) === $args->slug ) {
						$response                 = new stdClass();
						$response->slug           = $args->slug;
						$response->plugin         = $slug;
						$response->plugin_name    = $plugin['name'];
						$response->name           = $plugin['name'];
						$response->version        = $plugin['version'];
						$response->author         = $plugin['author'];
						$response->homepage       = $plugin['url'];
						$response->requires       = $plugin['requires'];
						$response->tested         = $plugin['tested'];
						$response->downloaded     = $plugin['number_of_sales'];
						$response->last_updated   = $plugin['updated_at'];
						$response->sections       = array( 'description' => $plugin['description'] );
						$response->banners['low'] = $plugin['landscape_url'];
						$response->rating         = ! empty( $plugin['rating'] ) && ! empty( $plugin['rating']['rating'] ) && $plugin['rating']['rating'] > 0 ? $plugin['rating']['rating'] / 5 * 100 : 0;
						$response->num_ratings    = ! empty( $plugin['rating'] ) && ! empty( $plugin['rating']['count'] ) ? $plugin['rating']['count'] : 0;
						$response->download_link  = envato_market()->api()->deferred_download( $plugin['id'] );
						break;
					}
				}
			}

			return $response;
		}

		/**
		 * Set the list of themes
		 *
		 * @since 1.0.0
		 *
		 * @param bool $forced Forces an API request. Default is 'false'.
		 * @param bool $use_cache Attempts to rebuild from the cache before making an API request.
		 */
		public function set_themes( $forced = false, $use_cache = false ) {
			$themes_transient = get_site_transient( envato_market()->get_option_name() . '_themes' );
			self::$themes = is_array($themes_transient) ? $themes_transient : array();

			if ( empty(self::$themes) || true === $forced ) {
				$themes = envato_market()->api()->themes();
				foreach ( envato_market()->get_option( 'items', array() ) as $item ) {
					if ( empty( $item ) ) {
						continue;
					}
					if ( 'theme' === $item['type'] ) {
						$request_args = array(
							'headers' => array(
								'Authorization' => 'Bearer ' . $item['token'],
							),
						);
						$request      = envato_market()->api()->item( $item['id'], $request_args );
						if ( false !== $request ) {
							$themes[] = $request;
						}
					}
				}
				self::process_themes( $themes );
			} elseif ( true === $use_cache ) {
				self::process_themes( self::$themes['purchased'] );
			}
		}

		/**
		 * Set the list of plugins
		 *
		 * @since 1.0.0
		 *
		 * @param bool  $forced Forces an API request. Default is 'false'.
		 * @param bool  $use_cache Attempts to rebuild from the cache before making an API request.
		 * @param array $args Used to remove or add a plugin during activate and deactivate routines.
		 */
		public function set_plugins( $forced = false, $use_cache = false, $args = array() ) {
			$plugins_transient = get_site_transient( envato_market()->get_option_name() . '_plugins' );
			self::$plugins = is_array($plugins_transient) ? $plugins_transient : array();

			if ( empty(self::$plugins) || true === $forced ) {
				$plugins = envato_market()->api()->plugins();
				foreach ( envato_market()->get_option( 'items', array() ) as $item ) {
					if ( empty( $item ) ) {
						continue;
					}
					if ( 'plugin' === $item['type'] ) {
						$request_args = array(
							'headers' => array(
								'Authorization' => 'Bearer ' . $item['token'],
							),
						);
						$request      = envato_market()->api()->item( $item['id'], $request_args );
						if ( false !== $request ) {
							$plugins[] = $request;
						}
					}
				}
				self::process_plugins( $plugins, $args );
			} elseif ( true === $use_cache ) {
				self::process_plugins( self::$plugins['purchased'], $args );
			}
		}

		/**
		 * Rebuild the themes array using the cache value if possible.
		 *
		 * @since 1.0.0
		 *
		 * @param mixed $filter Any data being filtered.
		 * @return mixed
		 */
		public function rebuild_themes( $filter ) {
			self::set_themes( false, true );

			return $filter;
		}

		/**
		 * Rebuild the plugins array using the cache value if possible.
		 *
		 * @since 1.0.0
		 *
		 * @param string $plugin The plugin to add or remove.
		 */
		public function rebuild_plugins( $plugin ) {
			$remove = ( 'deactivated_plugin' === current_filter() ) ? true : false;
			self::set_plugins(
				false,
				true,
				array(
					'plugin' => $plugin,
					'remove' => $remove,
				)
			);
		}

		/**
		 * Normalizes a string to do a value check against.
		 *
		 * Strip all HTML tags including script and style & then decode the
		 * HTML entities so `&` will equal `&` in the value check and
		 * finally lower case the entire string. This is required becuase some
		 * themes & plugins add a link to the Author field or ambersands to the
		 * names, or change the case of their files or names, which will not match
		 * the saved value in the database causing a false negative.
		 *
		 * @since 1.0.0
		 *
		 * @param string $string The string to normalize.
		 * @return string
		 */
		public function normalize( $string ) {
			return strtolower( html_entity_decode( wp_strip_all_tags( $string ) ) );
		}

		/**
		 * Process the themes and save the transient.
		 *
		 * @since 1.0.0
		 *
		 * @param array $purchased The purchased themes array.
		 */
		private function process_themes( $purchased ) {
			if ( is_wp_error( $purchased ) ) {
				$purchased = array();
			}

			$current   = wp_get_theme()->get_template();
			$active    = array();
			$installed = array();
			$install   = $purchased;

			if ( ! empty( $purchased ) ) {
				foreach ( wp_get_themes() as $theme ) {

					/**
					 * WP_Theme object.
					 *
					 * @var WP_Theme $theme
					 */
					$template = $theme->get_template();
					$title    = $theme->get( 'Name' );
					$author   = $theme->get( 'Author' );

					foreach ( $install as $key => $value ) {
						if ( $this->normalize( $value['name'] ) === $this->normalize( $title ) && $this->normalize( $value['author'] ) === $this->normalize( $author ) ) {
							$installed[ $template ] = $value;
							unset( $install[ $key ] );
						}
					}
				}
			}

			if ( isset( $installed[ $current ] ) ) {
				$active[ $current ] = $installed[ $current ];
				unset( $installed[ $current ] );
			}

			self::$themes['purchased'] = array_unique( $purchased, SORT_REGULAR );
			self::$themes['active']    = array_unique( $active, SORT_REGULAR );
			self::$themes['installed'] = array_unique( $installed, SORT_REGULAR );
			self::$themes['install']   = array_unique( array_values( $install ), SORT_REGULAR );

			set_site_transient( envato_market()->get_option_name() . '_themes', self::$themes, HOUR_IN_SECONDS );
		}

		/**
		 * Process the plugins and save the transient.
		 *
		 * @since 1.0.0
		 *
		 * @param array $purchased The purchased plugins array.
		 * @param array $args Used to remove or add a plugin during activate and deactivate routines.
		 */
		private function process_plugins( $purchased, $args = array() ) {
			if ( is_wp_error( $purchased ) ) {
				$purchased = array();
			}

			$active    = array();
			$installed = array();
			$install   = $purchased;

			if ( ! empty( $purchased ) ) {
				foreach ( self::wp_plugins( true ) as $slug => $plugin ) {
					foreach ( $install as $key => $value ) {
						if ( $this->normalize( $value['name'] ) === $this->normalize( $plugin['Name'] ) && $this->normalize( $value['author'] ) === $this->normalize( $plugin['Author'] ) && file_exists( WP_PLUGIN_DIR . '/' . $slug ) ) {
							$installed[ $slug ] = $value;
							unset( $install[ $key ] );
						}
					}
				}
			}

			foreach ( $installed as $slug => $plugin ) {
				$condition = false;
				if ( ! empty( $args ) && $slug === $args['plugin'] ) {
					if ( true === $args['remove'] ) {
						continue;
					}
					$condition = true;
				}
				if ( $condition || is_plugin_active( $slug ) ) {
					$active[ $slug ] = $plugin;
					unset( $installed[ $slug ] );
				}
			}

			self::$plugins['purchased'] = array_unique( $purchased, SORT_REGULAR );
			self::$plugins['active']    = array_unique( $active, SORT_REGULAR );
			self::$plugins['installed'] = array_unique( $installed, SORT_REGULAR );
			self::$plugins['install']   = array_unique( array_values( $install ), SORT_REGULAR );

			set_site_transient( envato_market()->get_option_name() . '_plugins', self::$plugins, HOUR_IN_SECONDS );
		}
	}

endif;