<?php
/**
 * Export SiteOrigin panels_data for a given page to a pretty-printed JSON file.
 * Usage: wp --allow-root eval-file export_so_page.php <post_id> <output_file>
 */

$post_id     = isset( $args[0] ) ? (int) $args[0] : 0;
$output_file = isset( $args[1] ) ? $args[1] : '';

if ( ! $post_id || ! $output_file ) {
    WP_CLI::error( 'Usage: wp eval-file export_so_page.php <post_id> <output_file>' );
}

$post = get_post( $post_id );
if ( ! $post ) {
    WP_CLI::error( "Post {$post_id} not found." );
}

$raw = get_post_meta( $post_id, 'panels_data', true );
if ( ! $raw ) {
    WP_CLI::error( "No panels_data found for post {$post_id} ({$post->post_title})." );
}

// panels_data is already unserialized by get_post_meta — wrap with page info
$export = [
    'page_id'     => $post_id,
    'page_title'  => $post->post_title,
    'post_name'   => $post->post_name,
    'post_status' => $post->post_status,
    'panels_data' => $raw,
];

$json = json_encode( $export, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );

if ( $json === false ) {
    WP_CLI::error( 'json_encode failed: ' . json_last_error_msg() );
}

file_put_contents( $output_file, $json . "\n" );
WP_CLI::success( "Exported \"{$post->post_title}\" (ID {$post_id}) → {$output_file}" );