<?php
if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * ACQUIS_Form_Blocks
 *
 * Registers the Gutenberg "AcquisitionSuite Form" block one of the four
 * placement mechanisms for standalone forms (alongside the [acquis_form]
 * shortcode, the Elementor widget, and the Bricks element). Dynamic/
 * server-rendered: the editor script is plain JS with no build step, and
 * both the editor preview (via ServerSideRender) and the real front-end
 * output funnel through ACQUIS_Form_Shortcode::render_standalone_form()
 * the same single source of truth every placement mechanism uses.
 */
class ACQUIS_Form_Blocks {

    /**
     * Hooked on 'init'. Guarded by function_exists() so this is a silent
     * no-op on the (extremely rare) WP install without the block editor,
     * rather than a fatal.
     */
    public static function register() {
        if ( ! function_exists( 'register_block_type' ) ) {
            return;
        }

        wp_register_script(
            'acquis-form-block-editor',
            ACQUIS_PLUGIN_URL . 'blocks/form/index.js',
            array( 'wp-blocks', 'wp-element', 'wp-block-editor', 'wp-components', 'wp-i18n', 'wp-server-side-render' ),
            acquis_asset_ver( ACQUIS_PLUGIN_DIR . 'blocks/form/index.js' ),
            true
        );

        $forms = class_exists( 'ACQUIS_P3_DB' ) ? ACQUIS_P3_DB::get_forms() : array();
        $form_list = array_map( function ( $f ) {
            return array( 'id' => (int) $f->id, 'title' => $f->title );
        }, $forms );

        // Embedded + Popup Modal are the two display styles available in
        // Lite. Pro adds Floating Button to this same list via the filter
        // below (mirrors the 'acquis_form_display_styles' allow-list used
        // server-side).
        $display_styles = apply_filters( 'acquis_form_block_display_style_options', array(
            array( 'label' => __( 'Use form default', 'acquisitionsuite' ), 'value' => '' ),
            array( 'label' => __( 'Embedded', 'acquisitionsuite' ),         'value' => 'embedded' ),
            array( 'label' => __( 'Popup Modal', 'acquisitionsuite' ),      'value' => 'popup' ),
        ) );

        wp_localize_script( 'acquis-form-block-editor', 'ACQUIS_FormBlockData', array(
            'forms'         => $form_list,
            'displayStyles' => $display_styles,
        ) );

        register_block_type( ACQUIS_PLUGIN_DIR . 'blocks/form', array(
            'editor_script'   => 'acquis-form-block-editor',
            'render_callback' => array( __CLASS__, 'render' ),
        ) );
    }

    /**
     * @param  array $attributes Block attributes (formId, display).
     * @return string HTML
     */
    public static function render( $attributes ) {
        if ( ! class_exists( 'ACQUIS_Form_Shortcode' ) ) {
            return '';
        }
        return ACQUIS_Form_Shortcode::render_standalone_form( array(
            'id'      => absint( $attributes['formId'] ?? 0 ),
            'display' => sanitize_key( $attributes['display'] ?? '' ),
        ) );
    }
}