<?php
/**
 * Feed Them Social - Error Handler
 *
 * This class houses some of the errors for FTS
 *
 * @package     feedthemsocial
 * @copyright   Copyright (c) 2012-2018, SlickRemix
 * @license     http://opensource.org/licenses/gpl-2.0.php GNU Public License
 * @since       1.0.0
 */

namespace feedthemsocial;

/**
 * Class FTS Error Handler
 *
 * @package feedthemsocial
 */
class fts_error_handler {

	/**
	 * Ouput string
	 *
	 * @var string
	 */
	public $output = '';

	/**
	 * Construct
	 *
	 * Error Handler constructor.
	 *
	 * @since 1.9.6
	 */
	public function __construct() {
		add_action( 'admin_init', array( $this, 'fts_plugin_version_check' ) );
	}

	/**
	 * FTS Versions Needed
	 *
	 * Define minimum premium version allowed to be active with Free Version.
	 *
	 * @return array
	 * @since 1.9.6
	 */
	public function fts_versions_needed() {
		$fts_versions_needed = array(
			'feed-them-premium/feed-them-premium.php' => array(
				'clean_name'     => __( 'Feed Them Premium', 'feed-them-social' ),
				'version_needed' => '1.5.3',
			),
			'fts-bar/fts-bar.php'                     => array(
				'clean_name'     => __( 'FTS Bar', 'feed-them-social' ),
				'version_needed' => '1.0.8',
			),
			'feed-them-social-facebook-reviews/feed-them-social-facebook-reviews.php' => array(
				'clean_name'     => __( 'Feed Them Social Facebook Reviews', 'feed-them-social' ),
				'version_needed' => '1.0.0',
			),
			'feed-them-carousel-premium/feed-them-carousel-premium.php' => array(
				'clean_name'     => __( 'Feed Them Carousel Premium', 'feed-them-social' ),
				'version_needed' => '1.0.0',
			),
			'feed-them-social-combined-streams/feed-them-social-combined-streams.php' => array(
				'clean_name'     => __( 'Feed Them Social Combined Streams', 'feed-them-social' ),
				'version_needed' => '1.1.1',
			),
		);
		return $fts_versions_needed;
	}

	/**
	 * FTS Plugin Version Check
	 *
	 * Make sure plugins are Proper Version if need be.
	 *
	 * @throws \Exception Don't let old plugins activate.
	 * @since 1.9.6
	 */
	public function fts_plugin_version_check() {
		// return error if no data retreived!
		try {
			$update_msg = __( 'Please update ALL Premium Extensions for Feed Them Social because they will no longer work with this version of Feed Them Social. We have made some Major Changes to the Core of the plugin to help with plugin conflicts. Please update your extensions from your <a href="https://www.slickremix.com/my-account" target="_blank">My Account</a> page on our website if you are not receiving notifications for updates on the premium extensions. Thanks again for using our plugin!', 'feed-them-social' );

			$plugins = get_plugins();

			if ( ! function_exists( 'is_plugin_active' ) || ! function_exists( 'deactivate_plugins' ) ) {
				require_once ABSPATH . '/wp-admin/includes/plugin.php';
			}

			$fts_versions_needed = $this->fts_versions_needed();

			foreach ( $fts_versions_needed as $single_plugin => $plugin_info ) {

				if ( isset( $plugins[ $single_plugin ] ) ) {
					// Check Version Compatibility if Extensions are not a new enough version deactivate them and throw errors!
					if ( $plugins[ $single_plugin ]['Version'] < $fts_versions_needed[ $single_plugin ]['version_needed'] && is_plugin_active( $single_plugin ) ) {
						deactivate_plugins( $single_plugin );

						// Don't Let Old Plugins Activate!
						throw new \Exception( '<div class="fts-update-message fts_old_plugins_message">' . $update_msg . '</div>' );
					}
				}
			}
		} catch ( \Exception $e ) {
			add_action(
				'admin_notices',
				function () use ( $e ) {
					echo wp_kses(
						$e->getMessage(),
						array(
							'a'   => array(
								'href'   => array(),
								'target' => array(),
							),
							'div' => array(
								'class' => array(),
							),
						)
					);
				}
			);
			return true;
		}
		return false;
	}

	/**
	 * Facebook Error Check
	 *
	 * @param string $fb_shortcode shortcode.
	 * @param string $feed_data feed data.
	 * @return array
	 * @throws \Exception Don't let old plugins activate.
	 * @since 1.9.6
	 */
	public function facebook_error_check( $fb_shortcode, $feed_data ) {
		// return error if no data retreived!
		try {
			if ( ! isset( $feed_data->data ) || empty( $feed_data->data ) ) {
				// Solution Text!
				$solution_text = 'Here are some possible solutions to fix the error.';
				// ID Error!
				if ( isset( $feed_data->error ) && 803 === $feed_data->error->code ) {
					if ( false !== strpos( $feed_data->error->message, '(#803) Cannot query users by their username' ) || 'group' === $fb_shortcode['type'] ) {
						throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . '.2 - Cannot query users by their username. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-803-2" target="_blank">' . $solution_text . '</a></div>' );
					} else {
						throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - Facebook cannot find this ID. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-803" target="_blank">' . $solution_text . '</a></div>' );
					}
				} elseif ( isset( $feed_data->error ) && ( 341 === $feed_data->error->code || 4 === $feed_data->error->code || 17 === $feed_data->error->code ) ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - Too many calls made to Facebook. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-rate-limiting" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( isset( $feed_data->error ) && 190 === $feed_data->error->code ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - Error validating application. Invalid application ID. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-invalid-app-id" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( isset( $feed_data->error ) && 104 === $feed_data->error->code ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - An access token is required to request this resource. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-access-token-required" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( isset( $feed_data->error ) && 210 === $feed_data->error->code ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - This call requires a Page access token. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-access-token-required" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( isset( $feed_data->error ) && 100 === $feed_data->error->code ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - This Page may not be public. <a style="color:red !important;" href="http://www.slickremix.com/docs/facebook-error-messages/#error-100" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( 'group' === $fb_shortcode['type'] && isset( $feed_data->error ) && 1 === $feed_data->error->code ) {
					$solution_text = 'Please view this link for a temporary solution.';
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - The group feed is experiencing a known error at this time. <a style="color:red !important;" href="http://www.slickremix.com/docs/facebook-error-messages/#group-feed-error-pinned-post" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( 'reviews' === $fb_shortcode['type'] && ( empty( $feed_data->data ) || ! isset( $feed_data->data ) ) ) {
					// Rate Limit Exceeded!
					throw new \Exception( '<div style="clear:both; padding:15px 0;">No Reviews Found or You may not have Admin Permissions for this page. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-no-reviews" target="_blank">' . $solution_text . '</a></div>' );
				} elseif ( isset( $feed_data->error ) ) {
					// If Custom Exception is not needed but still error then throw ugly error.
					if ( isset( $feed_data->error->message ) ) {
						$output = 'Error: ' . $feed_data->error->message;
					}
					if ( isset( $feed_data->error->type ) ) {
						$output .= '<br />Type: ' . $feed_data->error->type;
					}
					if ( isset( $feed_data->error->code ) ) {
						$output .= '<br />Code: ' . $feed_data->error->code;
					}
					if ( isset( $feed_data->error->error_subcode ) ) {
						$output .= '<br />Subcode:' . $feed_data->error->error_subcode;
					}
					// If just code.
					if ( isset( $feed_data->error_msg ) ) {
						$output = 'Error: ' . $feed_data->error_msg;
					}
					if ( isset( $feed_data->error_code ) ) {
						$output .= '<br />Code: ' . $feed_data->error_code;
					}
					throw new \Exception( '<div style="clear:both; padding:15px 0;" class="fts-error-m">' . $output . '</div>' );
				}
			}
		} catch ( \Exception $e ) {
			$fb_hide_error_handler_message = get_option( 'fb_hide_error_handler_message' ) && 'yes' === get_option( 'fb_hide_error_handler_message' ) ? 'yes' : 'no';
			if ( 'no' === $fb_hide_error_handler_message ) {
				return array( true, $e->getMessage() );
			} else {
				return array( true, '' );
			}
		}

		return;
	}

	/**
	 * Youtube Error Check
	 *
	 * @param string|array $feed_data feed data.
	 * @return string|array
	 * @throws \Exception Don't let old plugins activate.
	 * @since 1.9.6
	 */
	public function youtube_error_check( $feed_data ) {

        $feed_data = json_decode( $feed_data['data'] );


        //error_log( print_r( $feed_data, true ) );

		// return error if no data retreived!
		try {
			if ( ! isset( $feed_data->data ) || empty( $feed_data->data ) ) {

				// Solution Text!
				$solution_text = 'Here are some possible solutions to fix the error.';
				if ( isset( $feed_data->error ) && 400 === $feed_data->error->code  ) {
					throw new \Exception( '<div style="clear:both; padding:15px 0;">#' . $feed_data->error->code . ' - A VALID access token is required to request this resource. <a style="color:red !important;" href="https://www.slickremix.com/docs/facebook-error-messages/#error-access-token-required" target="_blank">' . $solution_text . '</a></div>' );
				}
				if ( isset( $feed_data->error ) ) {
					// If Custom Exception is not needed but still error then throw ugly error.
					if ( isset( $feed_data->error->message ) ) {
						$output = 'Error: ' . $feed_data->error->message;
					}
					if ( isset( $feed_data->error->code ) ) {
						$output .= '<br />Code: ' . $feed_data->error->code;
					}

					throw new \Exception( '<div style="clear:both; padding:15px 0;" class="fts-error-m">' . $output . '</div>' );
				}

                //throw new \Exception( '<div style="clear:both; padding:15px 0;" class="fts-error-m">'.esc_html__('Oops, It appears something is wrong with this YouTube feed. Are there videos posted on the YouTube account?').'</div>' );
			}
		} catch ( \Exception $e ) {
            return array( true, $e->getMessage() );
		}
        return;
	}
}

