<?php

add_action( 'init', 'wpgetapi_init_block_editor_assets', 10, 0 );

function wpgetapi_init_block_editor_assets() {

    $assets = [];

    $asset_file = WPGETAPIDIR . 'includes/block-editor/index.asset.php';

    if ( file_exists( $asset_file ) ) {
        $assets = include $asset_file;
    }

    $assets = wp_parse_args( $assets, [
        'dependencies' => [
            'wp-api-fetch',
            'wp-block-editor',
            'wp-blocks',
            'wp-components',
            'wp-element',
            'wp-i18n',
            'wp-url'
        ],
        'version'      => WPGETAPIVERSION
    ] );

    wp_register_script(
        'wpgetapi-block-editor',
        WPGETAPIURL . 'includes/block-editor/index.js',
        $assets['dependencies'],
        $assets['version'] . time()
    );

    wp_set_script_translations(
        'wpgetapi-block-editor',
        'wpgetapi'
    );

    $attributes = apply_filters( 
        'wpgetapi_gutenberg_attributes', 
        array(
            'api_id'        => array( 'type' => 'string' ),
            'endpoint_id'   => array( 'type' => 'string' ),
            'debug'         => array( 'type' => 'string' )
        ) 
    );

    $select_options = apply_filters( 
        'wpgetapi_gutenberg_select_options', 
        array(
            'format' => array(
                array( 'label' => 'Available in PRO plugin', 'value' => '' ),
            ),
            'html_tags' => array(
                array( 'label' => 'Available in PRO plugin', 'value' => '' ),
            ),
            'html_labels' => array(
                array( 'label' => 'Available in PRO plugin', 'value' => '' ),
            )
        ) 
    );

    register_block_type(
        WPGETAPIDIR . 'includes/block-editor',
        array(
            'editor_script'     => 'wpgetapi-block-editor',
            'render_callback'   => 'wpgetapi_get_gutenberg_html',
            'attributes'        => $attributes,
        )
    );

    $data   = [];
    $count  = 0;
    $apis   = get_option( 'wpgetapi_setup' );

    if ( $apis ) {
        foreach ( $apis as $i => $api ) {
            if ( $api ) {
                foreach ( $api as $i2 => $item ) {
                    $endpoints = get_option( 'wpgetapi_' . $item['id'] );
                    if ( isset( $endpoints['endpoints'] ) ) {
                        foreach ( $endpoints['endpoints'] as $i3 => $endpoint ) {
                            $data[$count]['id']          = $item['id'] . '_' . $endpoint['id'];
                            $data[$count]['api_id']      = $item['id'];
                            $data[$count]['endpoint_id'] = $endpoint['id'];
                            $data[$count]['endpoint']    = $endpoint['endpoint'];
                            $count++;
                        }
                    }
                }
            }
        }
    }

    wp_localize_script(
        'wpgetapi-block-editor',
        'wpgetapi_block_editor',
        array(
            'logo_url'          => WPGETAPIURL . 'assets/img/wpgetapi-icon.png',
            'endpoints'         => $data,
            'attributes'        => $attributes,
            'select_options'    => $select_options
        ),
        'before'
    );
}

/**
 * Get form HTML to display in a WPGetAPI Gutenberg block.
 *
 * @since 2.0.0
 *
 * @param array $attr Attributes passed by WPGetAPI Gutenberg block.
 *
 * @return string
 */
function wpgetapi_get_gutenberg_html( $attr, $content ) {

    $api_id      = ! empty( $attr['api_id'] ) ? $attr['api_id'] : 0;
    $endpoint_id = ! empty( $attr['endpoint_id'] ) ? $attr['endpoint_id'] : 0;

    if ( empty( $api_id ) || empty( $endpoint_id ) ) {
        return 'no';
    }

    ob_start();

    /**
     * Fires before Gutenberg block output.
     *
     * @since 1.5.8.2
     */
    do_action( 'wpgetapi_gutenberg_block_before' );

    $debug              = ! empty( $attr['debug'] ) ? $attr['debug'] : 'false';
    $format             = ! empty( $attr['format'] ) ? $attr['format'] : '';
    $html_tag           = ! empty( $attr['html_tag'] ) ? $attr['html_tag'] : '';
    $html_labels        = ! empty( $attr['html_labels'] ) ? $attr['html_labels'] : '';
    $keys               = ! empty( $attr['keys'] ) ? $attr['keys'] : '';
    $query_variables    = ! empty( $attr['query_variables'] ) ? $attr['query_variables'] : '';
    $endpoint_variables = ! empty( $attr['endpoint_variables'] ) ? $attr['endpoint_variables'] : '';

    $shortcode = sprintf( '[wpgetapi_endpoint 
            api_id="' . $api_id . '" 
            endpoint_id="' . $endpoint_id . '" 
            debug="' . $debug . '" 
            format="' . $format . '"
            html_tag="' . $html_tag . '"
            html_labels="' . $html_labels . '"
            keys="' . $keys . '"
            query_variables="' . $query_variables . '"
            endpoint_variables="' . $endpoint_variables . '"
        ]' );

    echo do_shortcode( shortcode_unautop( $shortcode ) );

    /**
     * Fires after Gutenberg block output.
     *
     * @since 1.5.8.2
     */
    do_action( 'wpgetapi_gutenberg_block_after' );

    $content = ob_get_clean();

    if ( empty( $content ) ) {
        $content = '<div class="components-placeholder"><div class="components-placeholder__label"></div>' .
        '<div class="components-placeholder__fieldset">' .
        esc_html__( 'The data cannot be displayed.', 'wpgetapi' ) .
            '</div></div>';
    }

    /**
     * Filter Gutenberg block content.
     *
     * @since 1.5.8.2
     *
     * @param string $content Block content.
     * @param int    $id      Form id.
     */
    return apply_filters( 'wpgetapi_gutenberg_block_content', $content, $api_id, $endpoint_id, $attr );
}