<?php
/**
 * AbsolutePlugins Services Promo Handler.
 *
 * @link https://github.com/AbsolutePlugins/AbsolutePluginsServices
 * @version 1.0.0
 * @package AbsolutePluginsServices
 * @license MIT
 */

namespace AbsoluteAddons\AbsolutePluginsServices;;

if ( ! defined( 'ABSPATH' ) ) {
	die();
}

/**
 * Class Promotions
 */
class Promotions {

	/**
	 * AbsolutePluginsServices\Client
	 *
	 * @var Client
	 */
	protected $client;

	/**
	 * Promotions
	 * @var bool|object[]
	 */
	private $promotions = false;

	/**
	 * List of hidden promotions for current user
	 * @var array
	 */
	private $hidden_promotions;

	/**
	 * Current User Id
	 * @var int
	 */
	private $currentUser = 0;

	protected $cache_ttl;

	private $promo_source;

	/**
	 * Promotions constructor.
	 *
	 * @param Client $client    The Client.
	 * @param string $source    Data Source URL
	 * @param string $cache_ttl Promo Data Cache Expiration & Checking Interval.
	 *
	 * @return void
	 */
	public function __construct( Client $client, $source = null ) {
		$this->client = $client;

		if ( null !== $source ) {
			$this->set_source( $source );
		}

		$this->cache_ttl = 12 * HOUR_IN_SECONDS;
	}

	public function set_source( $source ) {
		if ( esc_url_raw( $source, [ 'https' ] ) ) {
			$this->promo_source = esc_url_raw( $source, [ 'https' ] );
		}

		return $this;
	}

	public function set_cache_ttl( $seconds ) {
		$seconds = absint( $seconds );
		if ( $seconds >= 12 * HOUR_IN_SECONDS ) {
			$this->cache_ttl = $seconds;
		}

		return $this;
	}

	/**
	 * Init Promotions
	 * @return void
	 */
	public function init() {
		add_action( 'admin_init', [ $this, '__init_internal' ] );
	}

	/**
	 * Set environment variables and init internal hooks
	 * @return void
	 */
	public function __init_internal() {
		$this->currentUser = get_current_user_id();
		$this->hidden_promotions = (array) get_user_option( $this->client->getSlug() . '_hidden_promos', $this->currentUser );
		$this->promotions = $this->__get_promos();
		// only run if there is active promotions.
		if ( count( $this->promotions ) ) {
			add_action( 'admin_notices', [ $this, '__show_promos' ] );
			add_action( 'wp_ajax_absp_srv_dismiss_promo', [ $this, '__dismiss_promo' ] );
			add_action( 'admin_print_styles', [ $this, '__get_promo_styles' ], 99 );
			add_action( 'admin_enqueue_scripts', [ $this, '__enqueue_deps' ] );
			add_action( 'admin_print_footer_scripts', [ $this, '__get_promo_scripts' ] );
		}
	}

	/**
	 * Render Promotions
	 * @return void
	 */
	public function __show_promos() {
		foreach ( $this->promotions as $promotion ) {
			$wrapperStyles = '';
			$buttonStyles  = '';
			$noticeClasses = 'notice notice-success absp-srv-promo';
			$has_columns   = isset( $promotion->button, $promotion->logo );

			if ( ! (
				! isset( $promotion->dismissible ) ||
				( isset( $promotion->dismissible ) && 0 == $promotion->dismissible )
			) ) {
				$noticeClasses .= ' is-dismissible';
			}

			if ( isset( $promotion->wrapperStyle ) ) {
				if ( isset( $promotion->wrapperStyle->color ) ) {
					$wrapperStyles .= 'color: ' . esc_attr( $promotion->wrapperStyle->color ) . ';';
				}
				if ( isset( $promotion->wrapperStyle->padding ) ) {
					$wrapperStyles .= 'padding: ' . esc_attr( $promotion->wrapperStyle->padding ) . ';';
				}
				if ( isset( $promotion->wrapperStyle->backgroundColor ) ) {
					$wrapperStyles .= 'background-color: ' . esc_attr( $promotion->wrapperStyle->backgroundColor ) . ';';
				}
				if ( isset( $promotion->wrapperStyle->backgroundImage ) ) {
					$wrapperStyles .= 'background-image: url("' . esc_url( $promotion->wrapperStyle->backgroundImage ) . '");';
				}
				if ( isset( $promotion->wrapperStyle->backgroundRepeat ) ) {
					$wrapperStyles .= 'background-repeat: ' . esc_attr( $promotion->wrapperStyle->backgroundRepeat ) . ';';
				}
				if ( isset( $promotion->wrapperStyle->backgroundSize ) ) {
					$wrapperStyles .= 'background-size: ' . esc_attr( $promotion->wrapperStyle->backgroundSize ) . ';';
				}

			}

			if ( isset( $promotion->button ) ) {
				if ( isset( $promotion->button->backgroundColor ) ) {
					$buttonStyles .= 'background-color: ' . $promotion->button->backgroundColor . ';border-color: ' . $promotion->button->backgroundColor . ';';
				}
				if ( isset( $promotion->button->color ) ) {
					$buttonStyles .= 'color: ' . $promotion->button->color . ';';
				}
			}
	?>
		<div class="<?php echo esc_attr( $noticeClasses ); ?> " id="<?php echo esc_attr( $promotion->hash ); ?>" data-nonce="<?php echo esc_attr( wp_create_nonce( 'absp-srv-dismiss-promo' ) ); ?>" style="<?php echo esc_attr( $wrapperStyles ); ?>">
			<div class="absp-srv-promo-wrap<?php if ( ! $has_columns ) echo ' no-column'; ?>">
				<?php if ( isset( $promotion->logo ) && ! empty( $promotion->logo ) ) { ?>
				<div class="absp-srv-promo-logo absp-srv-promo-column">
					<img src="<?php echo esc_url( $promotion->logo->src ); ?>" alt="<?php echo esc_attr( $promotion->logo->alt ); ?>">
				</div>
				<?php } ?>
				<div class="absp-srv-details<?php if ( $has_columns ) echo ' absp-srv-promo-column'; ?>">
					<?php echo wp_kses_post( $promotion->content ); ?>
				</div>
				<?php if ( isset( $promotion->button ) && ! empty( $promotion->button ) ) { ?>
					<div class="absp-srv-promo-btn-container absp-srv-promo-column">
						<?php if ( isset( $promotion->button->url ) && isset( $promotion->button->label ) ) { ?>
						<a href="<?php echo esc_url( $promotion->button->url ); ?>" class="button absp-srv-promo-btn"
						   style="<?php echo esc_attr( $buttonStyles ); ?>"
						   target="_blank"
						   rel="noopener"
						><?php echo wp_kses_post( $promotion->button->label ); ?></a>
						<?php
						}
						if ( isset( $promotion->button->after ) && ! empty( $promotion->button->after ) ) {
							echo wp_kses_post( $promotion->button->after );
						}
						?>
					</div>
				<?php } ?>
			</div>
		</div>
	<?php
		}
	}

	/**
	 * Get Promotion Data
	 * Cache First then fetch source url for json data.
	 * @return array
	 */
	private function __get_promos() {
		$promos = get_transient( $this->client->getSlug() . '_cached_promos' );
		if ( empty( $promos ) ) {

			// Fetch promotions data from json source.
			$args = [
				'timeout' => 15, // phpcs:ignore WordPressVIPMinimum.Performance.RemoteRequestTimeout.timeout_timeout
			];

			if ( null !== $this->promo_source ) {
				$args['url'] = $this->promo_source;
			} else {
				$args['route'] = 'promotions';
			}

			$response = $this->client->request( $args );

			if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) {
				// Cache Something, reduce request.
				$promos = '[]';
			} else {
				$promos = wp_remote_retrieve_body( $response );
			}

			// Cache data.
			set_transient( $this->client->getSlug() . '_cached_promos', $promos, $this->cache_ttl );
		}

		// Decode to array.
		$promos = json_decode( $promos );

		// Filter promotions by date.
		$promos = array_filter( $promos, [ $this, '__is_promo_active' ] );

		if ( ! empty( $promos ) ) {
			// Filter promotions by list of hidden promotions by the user.
			$promos = array_filter( $promos, [ $this, '__is_promo_hidden' ] );
		}

		return $promos;
	}

	/**
	 * Check if promotion is active by date.
	 * must have start and end property
	 * @param object $promo {   the promo object.
	 *      Single Promo Object
	 *      @type string    $content   string. required
	 *      @type string    $start     valid timestamp. required
	 *      @type string    $end       valid timestamp. required
	 * }
	 *
	 * @return bool
	 */
	public function __is_promo_active( $promo ) {
		$ct = current_time( 'timestamp' ); // phpcs:ignore
		return ( ! empty( $promo->content ) && strtotime( $promo->start ) < $ct && $ct < strtotime( $promo->end ) );
	}

	/**
	 * Check if promo is hidden by current user
	 * @param object $promo {   the promo object.
	 *      Single Promo Object
	 *      @type string    $hash     valid unique hash for a promo
	 * }
	 *
	 * @return bool         true if promo is hidden by user
	 */
	public function __is_promo_hidden( $promo ) {
		return ! in_array( $promo->hash, $this->hidden_promotions );
	}

	/**
	 * Js Dependencies
	 * @return void
	 */
	public function __enqueue_deps(){
		wp_enqueue_script( 'wp-util' );
		wp_enqueue_script( 'jquery' );
	}

	/**
	 * Script for hiding promo on user click
	 * @return void
	 */
	public function __get_promo_scripts() {
	?>
		<!--suppress ES6ConvertVarToLetConst -->
		<script>
			(function($){
                $('body').on('click', '.absp-srv-promo .notice-dismiss', function (e) {
                    e.preventDefault();
                    var $parent = $(this).closest( '.absp-srv-promo' );
                    wp.ajax.post('absp_srv_dismiss_promo', {
                        dismissed:  true,
	                    hash:       $parent.attr( 'id' ),
                        _wpnonce:   $parent.data( 'nonce' ),
                    });
                });
			})(jQuery);
		</script>
	<?php
	}

	/**
	 * Global Promo Styles
	 * @return void
	 */
	public function __get_promo_styles() {
	?>
		<!--suppress CssUnusedSymbol -->
		<style>
			.absp-srv-promo { border: none; padding: 15px 0; }
			.absp-srv-promo-wrap { display: flex; justify-content: center; align-items: center; text-align: center; color: inherit; max-width: 1820px; margin: 0 auto; }
			.absp-srv-promo-wrap.no-column{ display: block; }
			.absp-srv-promo-column.absp-srv-promo-logo { flex: 0 0 25%; }
			.absp-srv-promo-column.absp-srv-promo-logo img { height: 48px; width: auto; }
			.absp-srv-details {display: block;}
			.absp-srv-details h3 { color: inherit; font-size: 30px; margin: 12px 0; }
			.absp-srv-details p { color: inherit; font-size: 15px; }
			.absp-srv-promo-column.absp-srv-details { flex: 0 0 50%; }
			.absp-srv-promo-column.absp-srv-promo-btn-container { flex: 0 0 25%; }
			.absp-srv-promo-wrap .absp-srv-promo-btn { position: relative; padding: 15px; border-radius: 30px; font-size: 15px; font-weight: 700; display: block; color: inherit; text-decoration: none; max-width: 200px; margin: 0 auto; line-height: normal; height: auto; box-shadow: 1px 2px 0 rgba(0, 0, 0, 0.1); }
			.absp-srv-promo-wrap .absp-srv-promo-btn:focus,
			.absp-srv-promo-wrap .absp-srv-promo-btn:hover,
			.absp-srv-promo-wrap .absp-srv-promo-btn:active { box-shadow: inset 3px 4px 6px 0 rgba(1, 9, 12, 0.25); }
			.absp-srv-promo-wrap .absp-srv-promo-btn:active { top: 1px; }
			@media screen and (max-width: 1200px) {
				.absp-srv-promo-wrap { display: block; overflow: hidden; }
				.absp-srv-promo-column .absp-srv-promo-logo { width: 100%; margin: 0 auto; }
				.absp-srv-promo-column .absp-srv-details { width: 68%; float: left; margin-right: 4%; margin-top: 32px; }
				.absp-srv-promo-column.absp-srv-promo-btn-container { width: 28%; float: right; margin-top: 42px; }
			}
			@media screen and (max-width: 782px) {
				.absp-srv-promo-wrap .absp-srv-details { float: none; width: 100%; }
				.absp-srv-promo-btn-container { float: none; width: 100%; margin-top: 32px; }
				.absp-srv-promo-column.absp-srv-promo-btn-container { width: 100%; float: right; margin-top: 42px; }
			}
		</style>
	<?php
	}

	/**
	 * Ajax Callback handler for hiding promo
	 * @return void
	 */
	public function __dismiss_promo() {
		if (
				isset( $_REQUEST['dismissed'], $_REQUEST['hash'], $_REQUEST['_wpnonce'] ) &&
				'true' == $_REQUEST['dismissed'] && ! empty( $_REQUEST['hash'] ) &&
				wp_verify_nonce( sanitize_text_field( $_REQUEST['_wpnonce'] ), 'absp-srv-dismiss-promo' )
		) {
			$this->hidden_promotions = array_merge( $this->hidden_promotions, [ sanitize_text_field( $_REQUEST['hash'] ) ] );
			update_user_option( $this->currentUser, $this->client->getSlug() . '_hidden_promos', $this->hidden_promotions );
			wp_send_json_success( esc_html__( 'Promo hidden', 'absolute-addons' ) );
		}
		wp_send_json_error( esc_html__( 'Invalid Request', 'absolute-addons' ) );
		die();
	}

	/**
	 * @noinspection PhpUnused
	 * Clear Hidden Promotion preference for User
	 * @return bool
	 */
	public function clear_hidden_promos() {
		if ( ! did_action( 'admin_init' ) ) {
			_doing_it_wrong( __METHOD__, esc_html__( 'Method must be invoked inside admin_init action.', 'absolute-addons' ), '1.0.0' );
		}
		$this->currentUser = get_current_user_id();
		return delete_user_option( $this->currentUser, $this->client->getSlug() . '_hidden_promos' );
	}

	/**
	 * Clear Cached Promotion data
	 * @return bool
	 */
	public function clear_cache() {
		return delete_transient( $this->client->getSlug() . '_cached_promos' );
	}
}
// End of file class-promotions.php.