<?php
namespace artbees\QuickView\Storage;
use artbees\QuickView\Contracts\SettingsRepository as SettingsRepositoryContract;
use artbees\QuickView\Contracts\SettingsSchema;
if ( ! defined( 'ABSPATH' ) ) { exit; }

final class SettingsRepository implements SettingsRepositoryContract {
	const OPTION = 'artbees_qv_settings';
	const VERSION_OPTION = 'artbees_qv_settings_version';
	private $schema;
	public function __construct( SettingsSchema $schema ) { $this->schema = $schema; }
	public function defaults() { return $this->schema->defaults(); }
	public function get() { $stored = get_option( self::OPTION, array() ); $document = is_array( $stored ) ? $this->schema->normalize( $stored ) : array(); return empty( $document ) ? $this->defaults() : $document; }
	public function replace( array $normalized ) {
		if ( ! $this->is_complete_document( $normalized, $this->schema->defaults() ) || ! $this->schema->validate( $normalized )->is_valid() ) { return false; }
		$document = $this->schema->normalize( $normalized );
		if ( empty( $document ) || strlen( wp_json_encode( $document ) ) > 32768 ) { return false; }
		$updated = update_option( self::OPTION, $document, true );
		if ( $updated ) { update_option( self::VERSION_OPTION, (int) get_option( self::VERSION_OPTION, 0 ) + 1, true ); do_action( 'artbees_qv/settings/replaced', $document ); }
		return $updated || $this->get() === $document;
	}
	private function is_complete_document( array $candidate, array $defaults ) {
		if ( array_keys( $candidate ) !== array_keys( $defaults ) ) { return false; }
		foreach ( $defaults as $key => $default ) {
			if ( is_array( $default ) && $this->is_associative( $default ) && ( ! is_array( $candidate[ $key ] ) || ! $this->is_complete_document( $candidate[ $key ], $default ) ) ) { return false; }
		}
		return true;
	}
	private function is_associative( array $value ) { return ! empty( $value ) && array_keys( $value ) !== range( 0, count( $value ) - 1 ); }
}