<?php
/**
 * The "404 Emails form" editor block and the [404emails] shortcode - both
 * put one form on one page, in the page, as a pop-up or as a corner button
 * (see Embed). The block's editor script is plain JavaScript with no build
 * step (blocks/form/index.js); the page itself only ever gets the embed
 * script tag, rendered on the server.
 *
 * Shortcode, for page builders and the classic editor:
 *   [404emails form="FORM_ID"]
 *   [404emails form="FORM_ID" mode="popup" trigger="delay" delay="8" label="Get 10% off"]
 *   [404emails form="FORM_ID" mode="floating" position="bottom-left" label="Join our list"]
 *
 * @package Emails404
 */

namespace Emails404;

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

class Form_Block {

	const SHORTCODE = '404emails';

	public static function register() {
		register_block_type(
			EMAILS404_PLUGIN_DIR . 'blocks/form',
			array( 'render_callback' => array( __CLASS__, 'render_block' ) )
		);
		add_shortcode( self::SHORTCODE, array( __CLASS__, 'render_shortcode' ) );
		add_action( 'enqueue_block_editor_assets', array( __CLASS__, 'editor_data' ) );
	}

	/** The block on the page: just the embed script for its form. */
	public static function render_block( $attributes ) {
		$attributes = is_array( $attributes ) ? $attributes : array();
		return Embed::render(
			array(
				'form'      => isset( $attributes['formId'] ) ? $attributes['formId'] : '',
				'mode'      => isset( $attributes['mode'] ) ? $attributes['mode'] : Embed::MODE_INLINE,
				'label'     => isset( $attributes['label'] ) ? $attributes['label'] : '',
				'position'  => isset( $attributes['position'] ) ? $attributes['position'] : 'bottom-right',
				'trigger'   => isset( $attributes['trigger'] ) ? $attributes['trigger'] : Embed::TRIGGER_CLICK,
				'delay'     => isset( $attributes['delay'] ) ? $attributes['delay'] : null,
				'scroll'    => isset( $attributes['scroll'] ) ? $attributes['scroll'] : null,
				'frequency' => isset( $attributes['frequency'] ) ? $attributes['frequency'] : null,
			)
		);
	}

	public static function render_shortcode( $atts ) {
		$atts = shortcode_atts(
			array(
				'form'      => '',
				'mode'      => Embed::MODE_INLINE,
				'label'     => '',
				'position'  => 'bottom-right',
				'trigger'   => Embed::TRIGGER_CLICK,
				'delay'     => '',
				'scroll'    => '',
				'frequency' => '',
				'launcher'  => 'yes',
			),
			is_array( $atts ) ? $atts : array(),
			self::SHORTCODE
		);
		return Embed::render( $atts );
	}

	/**
	 * What the block's editor script needs: the published forms (cached for
	 * a minute), where previews come from, and its words in the site's
	 * language - translated here in PHP, so the plugin's one translation
	 * file covers the block too.
	 */
	public static function editor_data() {
		$forms = array();
		foreach ( Admin_Page::get_forms() as $form ) {
			$forms[] = array(
				'id'      => $form['id'],
				'name'    => $form['name'],
				'preview' => Embed::preview_url( $form['id'] ),
			);
		}
		$data = array(
			'connected' => Settings::is_connected(),
			'settings'  => admin_url( 'admin.php?page=' . Admin_Page::MENU_SLUG ),
			'forms'     => $forms,
			'text'      => array(
				'title'          => __( '404 Emails form', '404-emails' ),
				'form'           => __( 'Form', '404-emails' ),
				'chooseForm'     => __( '— Choose a form —', '404-emails' ),
				'showIt'         => __( 'Show it', '404-emails' ),
				'inline'         => __( 'In the page', '404-emails' ),
				'popup'          => __( 'As a pop-up', '404-emails' ),
				'floating'       => __( 'As a corner button', '404-emails' ),
				'buttonText'     => __( 'Button text', '404-emails' ),
				'buttonHelp'     => __( 'The button that opens the form. Leave empty for "Subscribe".', '404-emails' ),
				'corner'         => __( 'Corner', '404-emails' ),
				'bottomRight'    => __( 'Bottom right', '404-emails' ),
				'bottomLeft'     => __( 'Bottom left', '404-emails' ),
				'opens'          => __( 'Opens', '404-emails' ),
				'onClick'        => __( 'When the button is clicked', '404-emails' ),
				'afterDelay'     => __( 'After a few seconds', '404-emails' ),
				'afterScroll'    => __( 'When they scroll down the page', '404-emails' ),
				'onExit'         => __( 'When they are about to leave', '404-emails' ),
				'seconds'        => __( 'Seconds', '404-emails' ),
				'percent'        => __( 'How far down (%)', '404-emails' ),
				'every'          => __( 'Show again after (days)', '404-emails' ),
				'everyHelp'      => __( '0 shows it on every visit. People who sign up or close it wait this long.', '404-emails' ),
				'notConnected'   => __( 'Connect this site to 404 Emails first.', '404-emails' ),
				'openSettings'   => __( 'Open 404 Emails settings', '404-emails' ),
				'noForms'        => __( 'No published forms yet. Publish a form in 404 Emails, then reload this page.', '404-emails' ),
				'pickPrompt'     => __( 'Choose which signup form to show.', '404-emails' ),
				'previewTitle'   => __( 'Signup form preview', '404-emails' ),
				'popupNote'      => __( 'Opens as a pop-up on the published page.', '404-emails' ),
				'floatingNote'   => __( 'Shows as a button in the corner of the published page.', '404-emails' ),
				'defaultButton'  => __( 'Subscribe', '404-emails' ),
			),
		);
		wp_add_inline_script( 'emails404-form-editor-script', 'window.emails404Block = ' . wp_json_encode( $data ) . ';', 'before' );
	}
}