#!/usr/bin/env php
<?php
/**
 * One-shot PSR-4 migrator for AKSRT theme.
 *
 * Prerequisites: php tools/build-psr4-map.php --write
 *
 * Usage:
 *   php tools/psr4-migrate.php --dry-run
 *   php tools/psr4-migrate.php --apply
 *
 * @package AKSRT
 */

declare(strict_types=1);

$root = dirname(__DIR__);
$apply = in_array('--apply', $argv, true);
$dry = !$apply;

$map_file = $root . '/tools/psr4-map/map.json';
if (!is_file($map_file)) {
	fwrite(STDERR, "Missing map. Run: php tools/build-psr4-map.php --write\n");
	exit(1);
}

/** @var array{entries: list<array<string,mixed>>, procedural: list<string>} $map */
$map = json_decode((string) file_get_contents($map_file), true, 512, JSON_THROW_ON_ERROR);

const PRESERVE_TOKENS = [
	'AKSRT_DIR',
	'AKSRT_URI',
	'AKSRT_VERSION',
	'AKSRT_NO_EMAIL_GATE',
];

/**
 * Find declaration start offset for a type name.
 */
function aksrt_find_decl_start(string $text, string $old_name): ?int {
	if (!preg_match(
		'/(?:abstract\s+|final\s+)?(?:class|trait|interface)\s+' . preg_quote($old_name, '/') . '\b/',
		$text,
		$m,
		PREG_OFFSET_CAPTURE
	)) {
		return null;
	}
	$decl = (int) $m[0][1];
	// Include immediately preceding docblock if present.
	$before = substr($text, 0, $decl);
	if (preg_match('/(?:\n|^)\s*\/\*\*[\s\S]*?\*\/\s*\z/', $before, $dm, PREG_OFFSET_CAPTURE)) {
		return (int) $dm[0][1];
	}
	return $decl;
}

/**
 * Extract one class/trait/interface by brace matching from its declaration.
 */
function aksrt_extract_type(string $text, string $old_name): ?string {
	$start = aksrt_find_decl_start($text, $old_name);
	if ($start === null) {
		return null;
	}

	$brace = strpos($text, '{', $start);
	if ($brace === false) {
		// Possible empty interface? require body.
		return null;
	}

	$len = strlen($text);
	$depth = 0;
	$in_str = false;
	$str_q = '';
	$in_line_comment = false;
	$in_block_comment = false;
	$escape = false;

	for ($i = $brace; $i < $len; $i++) {
		$ch = $text[$i];
		$next = $i + 1 < $len ? $text[$i + 1] : '';

		if ($in_line_comment) {
			if ($ch === "\n") {
				$in_line_comment = false;
			}
			continue;
		}
		if ($in_block_comment) {
			if ($ch === '*' && $next === '/') {
				$in_block_comment = false;
				$i++;
			}
			continue;
		}
		if ($in_str) {
			if ($escape) {
				$escape = false;
				continue;
			}
			if ($ch === '\\') {
				$escape = true;
				continue;
			}
			if ($ch === $str_q) {
				$in_str = false;
			}
			continue;
		}

		if ($ch === '/' && $next === '/') {
			$in_line_comment = true;
			$i++;
			continue;
		}
		if ($ch === '/' && $next === '*') {
			$in_block_comment = true;
			$i++;
			continue;
		}
		if ($ch === '"' || $ch === "'") {
			$in_str = true;
			$str_q = $ch;
			continue;
		}
		// Heredoc/nowdoc not handled fully — rare in this codebase.

		if ($ch === '{') {
			$depth++;
		} elseif ($ch === '}') {
			$depth--;
			if ($depth === 0) {
				return substr($text, $start, $i - $start + 1);
			}
		}
	}
	return null;
}

/**
 * @param list<array<string,mixed>> $entries
 * @return array<string, string>
 */
function aksrt_replacements(array $entries): array {
	$rep = [];
	foreach ($entries as $e) {
		$rep[$e['old']] = '\\' . $e['new_fqcn'];
	}
	uksort($rep, static fn($a, $b) => strlen($b) <=> strlen($a));
	return $rep;
}

/**
 * @param array<string, string> $rep
 */
function aksrt_rewrite_refs(string $code, array $rep): string {
	$protected = [];
	$i = 0;
	foreach (PRESERVE_TOKENS as $tok) {
		$ph = "\0PRESERVE{$i}\0";
		$protected[$ph] = $tok;
		$code = str_replace($tok, $ph, $code);
		$i++;
	}

	if ($rep) {
		$pattern = '/\b(' . implode('|', array_map(static fn($k) => preg_quote($k, '/'), array_keys($rep))) . ')\b/';
		$code = preg_replace_callback($pattern, static function ($m) use ($rep) {
			return $rep[$m[1]] ?? $m[1];
		}, $code) ?? $code;
	}

	foreach ($protected as $ph => $tok) {
		$code = str_replace($ph, $tok, $code);
	}
	return $code;
}

/**
 * @param array<string,mixed> $entry
 * @param array<string,string> $rep
 */
function aksrt_build_namespaced_file(array $entry, string $body, array $rep): string {
	$kind = $entry['kind'];
	$old = $entry['old'];
	$short = $entry['short'];
	$ns = $entry['namespace'];

	$body = preg_replace(
		'/(abstract\s+|final\s+)?(' . preg_quote($kind, '/') . ')\s+' . preg_quote($old, '/') . '\b/',
		'$1$2 ' . $short,
		$body,
		1
	) ?? $body;

	$body = aksrt_rewrite_refs($body, $rep);

	// Same-namespace FQCN → short name.
	$body = preg_replace(
		'/\\\\' . preg_quote($ns, '/') . '\\\\(\w+)/',
		'$1',
		$body
	) ?? $body;

	$out = "<?php\n/**\n * @package AKSRT\n */\n\nnamespace {$ns};\n\ndefined('ABSPATH') || exit;\n\n";
	$out .= rtrim($body) . "\n";
	return $out;
}

function aksrt_ensure_dir(string $file): void {
	$dir = dirname($file);
	if (!is_dir($dir) && !mkdir($dir, 0777, true) && !is_dir($dir)) {
		throw new RuntimeException("mkdir failed: {$dir}");
	}
}

function aksrt_write(string $abs, string $contents, bool $dry): void {
	if ($dry) {
		echo '[dry] write ' . $abs . ' (' . strlen($contents) . " bytes)\n";
		return;
	}
	aksrt_ensure_dir($abs);
	if (file_put_contents($abs, $contents) === false) {
		throw new RuntimeException("write failed: {$abs}");
	}
}

$rep = aksrt_replacements($map['entries']);
$entries = $map['entries'];

echo ($dry ? 'DRY-RUN' : 'APPLY') . ' — ' . count($entries) . " types\n";

$old_type_paths = [];
$failed = [];
$written = 0;
foreach ($entries as $entry) {
	$old_abs = $root . '/' . $entry['old_path'];
	$new_abs = $root . '/' . $entry['new_path'];
	$old_type_paths[$entry['old_path']] = true;

	if (!is_file($old_abs)) {
		if (is_file($new_abs)) {
			continue;
		}
		$failed[] = "missing source {$entry['old_path']} for {$entry['old']}";
		continue;
	}

	$text = (string) file_get_contents($old_abs);
	$chunk = aksrt_extract_type($text, $entry['old']);
	if ($chunk === null) {
		$failed[] = "cannot extract {$entry['old']} from {$entry['old_path']}";
		continue;
	}

	$contents = aksrt_build_namespaced_file($entry, $chunk, $rep);
	aksrt_write($new_abs, $contents, $dry);
	$written++;
}
echo "Type files: {$written}\n";

if ($failed) {
	fwrite(STDERR, "Extraction failures (" . count($failed) . "):\n");
	foreach (array_slice($failed, 0, 30) as $f) {
		fwrite(STDERR, "  {$f}\n");
	}
	if (!$dry) {
		exit(1);
	}
}

$proc_moves = [
	'inc/classes/auth/class-aksrt-captcha.php' => 'inc/modules/captcha.php',
	'inc/classes/payment/class-aksrt-creator-revenue.php' => 'inc/modules/creator-revenue.php',
	'inc/classes/user/class-aksrt-user-notifications.php' => 'inc/modules/user-notifications.php',
	'inc/classes/user/class-aksrt-user.php' => 'inc/modules/user-hub.php',
	'inc/classes/user/user-parts/aksrt-user-account-ajax.php' => 'inc/modules/user-parts/account-ajax.php',
	'inc/classes/user/user-parts/aksrt-user-routing.php' => 'inc/modules/user-parts/routing.php',
	'inc/classes/user/user-parts/aksrt-user-template-registry.php' => 'inc/modules/user-parts/template-registry.php',
	'inc/classes/user/user-parts/aksrt-user-urls.php' => 'inc/modules/user-parts/urls.php',
	'inc/classes/widgets/class-aksrt-widgets.php' => 'inc/modules/widgets-register.php',
];

foreach ($proc_moves as $from => $to) {
	$from_abs = $root . '/' . $from;
	$to_abs = $root . '/' . $to;
	if (!is_file($from_abs) && is_file($to_abs)) {
		continue;
	}
	if (!is_file($from_abs)) {
		echo "warn: procedural missing {$from}\n";
		continue;
	}
	$text = (string) file_get_contents($from_abs);
	if ($from === 'inc/classes/user/class-aksrt-user.php') {
		$text = str_replace(
			[
				"__DIR__ . '/user-parts/aksrt-user-template-registry.php'",
				"__DIR__ . '/user-parts/aksrt-user-urls.php'",
				"__DIR__ . '/user-parts/aksrt-user-routing.php'",
				"__DIR__ . '/user-parts/aksrt-user-account-ajax.php'",
			],
			[
				"__DIR__ . '/user-parts/template-registry.php'",
				"__DIR__ . '/user-parts/urls.php'",
				"__DIR__ . '/user-parts/routing.php'",
				"__DIR__ . '/user-parts/account-ajax.php'",
			],
			$text
		);
	}
	$text = aksrt_rewrite_refs($text, $rep);
	aksrt_write($to_abs, $text, $dry);
}

$scan_roots = [
	$root . '/inc/helpers',
	$root . '/inc/core-hooks',
	$root . '/inc/modules',
	$root . '/templates',
	$root . '/tools',
];
$scan_files = [
	$root . '/functions.php',
	$root . '/inc/bootstrap.php',
	$root . '/inc/core-hooks.php',
	$root . '/uninstall.php',
	$root . '/header.php',
	$root . '/footer.php',
	$root . '/index.php',
	$root . '/single.php',
	$root . '/page.php',
	$root . '/archive.php',
	$root . '/search.php',
	$root . '/category.php',
	$root . '/tag.php',
	$root . '/author.php',
	$root . '/404.php',
	$root . '/home.php',
	$root . '/front-page.php',
	$root . '/comments.php',
	$root . '/sidebar.php',
	$root . '/image.php',
	$root . '/go.php',
	$root . '/slim-forum.php',
	$root . '/archive-resources.php',
];

$php_files = $scan_files;
foreach ($scan_roots as $dir) {
	if (!is_dir($dir)) {
		continue;
	}
	$rii = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));
	foreach ($rii as $file) {
		if ($file->isFile() && str_ends_with($file->getFilename(), '.php')) {
			$php_files[] = $file->getPathname();
		}
	}
}
$php_files = array_values(array_unique($php_files));
$rewritten = 0;
foreach ($php_files as $abs) {
	if (!is_file($abs)) {
		continue;
	}
	$rel = str_replace('\\', '/', substr($abs, strlen($root) + 1));
	if (str_starts_with($rel, 'tools/build-psr4-map.php')
		|| str_starts_with($rel, 'tools/psr4-migrate.php')
		|| str_starts_with($rel, 'tools/psr4-map/')) {
		continue;
	}
	if (str_starts_with($rel, 'src/')) {
		continue;
	}

	$orig = (string) file_get_contents($abs);
	$next = aksrt_rewrite_refs($orig, $rep);
	if ($next !== $orig) {
		aksrt_write($abs, $next, $dry);
		$rewritten++;
	}
}
echo "Reference rewrites in non-src PHP: {$rewritten} files\n";

// Helper pure-class files become stubs after class move — rewrite domain-model/shortcodes if they still have class bodies (migrator already wrote src copies).
// After apply, delete old type sources and helper class-only file.
$helper_pure = [
	'inc/helpers/class-aksrt-nav-walker.php',
];

if (!$dry) {
	foreach (array_keys($old_type_paths) as $rel) {
		$abs = $root . '/' . $rel;
		if (is_file($abs)) {
			unlink($abs);
		}
	}
	foreach (array_keys($proc_moves) as $rel) {
		$abs = $root . '/' . $rel;
		if (is_file($abs)) {
			unlink($abs);
		}
	}
	foreach ($helper_pure as $rel) {
		$abs = $root . '/' . $rel;
		if (is_file($abs)) {
			unlink($abs);
		}
	}
	// helpers that still contain only moved classes: strip by rewriting shortcodes/domain-model to empty require-safe stubs if class was extracted.
	foreach (['inc/helpers/aksrt-shortcodes.php', 'inc/helpers/aksrt-domain-model.php'] as $rel) {
		$abs = $root . '/' . $rel;
		if (!is_file($abs)) {
			continue;
		}
		$t = (string) file_get_contents($abs);
		// If file still has class keyword for types we moved, replace with comment stub.
		if (preg_match('/\b(class|trait|interface)\s+/', $t)) {
			file_put_contents(
				$abs,
				"<?php\n/**\n * Procedural helpers previously co-located with classes (now under src/AKSRT).\n *\n * @package AKSRT\n */\n\ndefined('ABSPATH') || exit;\n"
			);
		}
	}

	// Prune empty dirs under inc/classes.
	$classes = $root . '/inc/classes';
	if (is_dir($classes)) {
		$iterator = new RecursiveIteratorIterator(
			new RecursiveDirectoryIterator($classes, FilesystemIterator::SKIP_DOTS),
			RecursiveIteratorIterator::CHILD_FIRST
		);
		foreach ($iterator as $file) {
			if ($file->isDir()) {
				@rmdir($file->getPathname());
			} else {
				echo 'leftover file: ' . $file->getPathname() . "\n";
			}
		}
		@rmdir($classes);
	}
} else {
	echo '[dry] would delete ' . count($old_type_paths) . " old type paths + procedural + prune inc/classes\n";
}

$lookup = [];
foreach ($entries as $e) {
	$lookup[$e['old']] = $e['new_fqcn'];
}
$auth_fq = $lookup['AKSRT_Auth_Service'] ?? 'AKSRT\\Auth\\Service';
$settings_fq = $lookup['AKSRT_Settings'] ?? 'AKSRT\\Settings\\Settings';

$bootstrap = <<<PHP
<?php
/**
 * AKSRT Theme Bootstrap Loader
 *
 * Helpers + procedural modules + core hooks.
 * Domain classes load via Composer PSR-4 (src/AKSRT → AKSRT\\).
 *
 * @package AKSRT
 * @version 3.4.0
 */

defined('ABSPATH') || exit;

// ============================================================
// Stage 1: helpers (must load before runtime that calls them)
// ============================================================
require_once AKSRT_DIR . '/inc/helpers/aksrt-icons.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-domain-model.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-template-tags.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-frontend-tags.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-flow.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-homepage.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-single-components.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-single.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-yiyan.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-single-render.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-archive.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-archive-filters.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-comments.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-forum.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-slider.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-vip.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-auth-ui.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-i18n-switch.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-posts-renderer.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-resource.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-pay.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-coupon-order.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-credits.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-null.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-identity.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-rewards.php';
require_once AKSRT_DIR . '/inc/helpers/menu-decoration.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-transactions.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-commerce.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-user-dashboard.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-user-center.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-user-home.php';
require_once AKSRT_DIR . '/inc/helpers/aksrt-shortcodes.php';

// ============================================================
// Stage 2: procedural modules (not PSR-4 types)
// ============================================================
require_once AKSRT_DIR . '/inc/modules/captcha.php';
require_once AKSRT_DIR . '/inc/modules/user-hub.php';
require_once AKSRT_DIR . '/inc/modules/user-notifications.php';
require_once AKSRT_DIR . '/inc/modules/creator-revenue.php';
require_once AKSRT_DIR . '/inc/modules/widgets-register.php';

// ============================================================
// Stage 3: core hooks
// ============================================================
require_once AKSRT_DIR . '/inc/core-hooks.php';

// ============================================================
// Stage 4: auth service global hooks
// ============================================================
if (class_exists(\\{$auth_fq}::class)) {
	\\\\{$auth_fq}::init();
}

// ============================================================
// Stage 5: email verification backfill
// ============================================================
add_action('init', function () {
	if (defined('AKSRT_NO_EMAIL_GATE') && AKSRT_NO_EMAIL_GATE) {
		return;
	}
	if (!class_exists(\\{$auth_fq}::class) || !class_exists(\\{$settings_fq}::class)) {
		return;
	}
	if (!\\\\{$settings_fq}::registration_requires_email_verification()) {
		return;
	}
	if (get_option('aksrt_email_verification_backfill_done')) {
		return;
	}
	if (!is_admin() && !(defined('DOING_CRON') && DOING_CRON)) {
		return;
	}
	\\\\{$auth_fq}::backfill_legacy_users_as_verified();
}, 5);

add_action('aksrt_email_verification_backfill_batch', function (\$offset = 0) {
	if (class_exists(\\{$auth_fq}::class)) {
		\\\\{$auth_fq}::run_async_backfill_batch((int) \$offset);
	}
}, 10, 1);

// ============================================================
// Stage 6: settings migration stub (admin only)
// ============================================================
add_action('admin_init', function () {
}, 5);

PHP;

// Fix accidental double backslashes from heredoc interpolation mess.
$bootstrap = str_replace(['\\\\' . $auth_fq, '\\\\' . $settings_fq, '\\{' ], ['\\' . $auth_fq, '\\' . $settings_fq, '{'], $bootstrap);
// Cleaner: rebuild bootstrap without broken escapes.
$bootstrap = "<?php\n"
	. "/**\n * AKSRT Theme Bootstrap Loader\n *\n"
	. " * Helpers + procedural modules + core hooks.\n"
	. " * Domain classes load via Composer PSR-4 (src/AKSRT → AKSRT\\).\n"
	. " *\n * @package AKSRT\n * @version 3.4.0\n */\n\n"
	. "defined('ABSPATH') || exit;\n\n"
	. "// Stage 1: helpers\n";

$helpers = [
	'aksrt-icons.php',
	'aksrt-domain-model.php',
	'aksrt-template-tags.php',
	'aksrt-frontend-tags.php',
	'aksrt-flow.php',
	'aksrt-homepage.php',
	'aksrt-single-components.php',
	'aksrt-single.php',
	'aksrt-yiyan.php',
	'aksrt-single-render.php',
	'aksrt-archive.php',
	'aksrt-archive-filters.php',
	'aksrt-comments.php',
	'aksrt-forum.php',
	'aksrt-slider.php',
	'aksrt-vip.php',
	'aksrt-auth-ui.php',
	'aksrt-i18n-switch.php',
	'aksrt-posts-renderer.php',
	'aksrt-resource.php',
	'aksrt-pay.php',
	'aksrt-coupon-order.php',
	'aksrt-credits.php',
	'aksrt-null.php',
	'aksrt-identity.php',
	'aksrt-rewards.php',
	'menu-decoration.php',
	'aksrt-transactions.php',
	'aksrt-commerce.php',
	'aksrt-user-dashboard.php',
	'aksrt-user-center.php',
	'aksrt-user-home.php',
	'aksrt-shortcodes.php',
];
foreach ($helpers as $h) {
	$bootstrap .= "require_once AKSRT_DIR . '/inc/helpers/{$h}';\n";
}
$bootstrap .= "\n// Stage 2: procedural modules\n";
foreach (['captcha.php', 'user-hub.php', 'user-notifications.php', 'creator-revenue.php', 'widgets-register.php'] as $m) {
	$bootstrap .= "require_once AKSRT_DIR . '/inc/modules/{$m}';\n";
}
$bootstrap .= "\n// Stage 3: core hooks\n";
$bootstrap .= "require_once AKSRT_DIR . '/inc/core-hooks.php';\n\n";
$bootstrap .= "// Stage 4: auth service hooks\n";
$bootstrap .= "if (class_exists(\\{$auth_fq}::class)) {\n\t\\{$auth_fq}::init();\n}\n\n";
// The above still has escape issues - build with concatenation only:
$bootstrap = "<?php\n/**\n * AKSRT Theme Bootstrap Loader\n *\n * Helpers + procedural modules + core hooks.\n * Domain classes load via Composer PSR-4 (src/AKSRT).\n *\n * @package AKSRT\n * @version 3.4.0\n */\n\ndefined('ABSPATH') || exit;\n\n";
$bootstrap .= "// Stage 1: helpers\n";
foreach ($helpers as $h) {
	$bootstrap .= "require_once AKSRT_DIR . '/inc/helpers/{$h}';\n";
}
$bootstrap .= "\n// Stage 2: procedural modules\n";
foreach (['captcha.php', 'user-hub.php', 'user-notifications.php', 'creator-revenue.php', 'widgets-register.php'] as $mod) {
	$bootstrap .= "require_once AKSRT_DIR . '/inc/modules/{$mod}';\n";
}
$bootstrap .= "\n// Stage 3: core hooks\nrequire_once AKSRT_DIR . '/inc/core-hooks.php';\n\n";
$bootstrap .= "// Stage 4: auth service hooks\n";
$bootstrap .= 'if (class_exists(\\' . $auth_fq . '::class)) {' . "\n";
$bootstrap .= "\t\\" . $auth_fq . "::init();\n}\n\n";
$bootstrap .= "// Stage 5: email verification backfill\n";
$bootstrap .= "add_action('init', function () {\n";
$bootstrap .= "\tif (defined('AKSRT_NO_EMAIL_GATE') && AKSRT_NO_EMAIL_GATE) {\n\t\treturn;\n\t}\n";
$bootstrap .= "\tif (!class_exists(\\" . $auth_fq . '::class) || !class_exists(\\' . $settings_fq . "::class)) {\n\t\treturn;\n\t}\n";
$bootstrap .= "\tif (!\\" . $settings_fq . "::registration_requires_email_verification()) {\n\t\treturn;\n\t}\n";
$bootstrap .= "\tif (get_option('aksrt_email_verification_backfill_done')) {\n\t\treturn;\n\t}\n";
$bootstrap .= "\tif (!is_admin() && !(defined('DOING_CRON') && DOING_CRON)) {\n\t\treturn;\n\t}\n";
$bootstrap .= "\t\\" . $auth_fq . "::backfill_legacy_users_as_verified();\n}, 5);\n\n";
$bootstrap .= "add_action('aksrt_email_verification_backfill_batch', function (\$offset = 0) {\n";
$bootstrap .= "\tif (class_exists(\\" . $auth_fq . "::class)) {\n";
$bootstrap .= "\t\t\\" . $auth_fq . "::run_async_backfill_batch((int) \$offset);\n\t}\n}, 10, 1);\n\n";
$bootstrap .= "add_action('admin_init', function () {\n}, 5);\n";

aksrt_write($root . '/inc/bootstrap.php', $bootstrap, $dry);

$composer_path = $root . '/composer.json';
$composer = json_decode((string) file_get_contents($composer_path), true, 512, JSON_THROW_ON_ERROR);
$composer['autoload'] = [
	'psr-4' => [
		'AKSRT\\' => 'src/AKSRT/',
	],
];
$composer['description'] = 'AKSRT WordPress Theme';
$json = json_encode($composer, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES) . "\n";
aksrt_write($composer_path, $json, $dry);

// functions.php must require composer autoload (already does) — ensure fatal if missing for theme classes.
if (!$dry) {
	$fn = (string) file_get_contents($root . '/functions.php');
	// Already rewritten class names. Optionally strengthen vendor require message.
	if (!str_contains($fn, 'vendor/autoload.php')) {
		fwrite(STDERR, "functions.php missing vendor/autoload.php require\n");
	}
}

echo "Done.\n";
exit(($failed && !$dry) ? 1 : 0);