<?php
declare( strict_types=1 );

namespace Dashbread\Core;

final class Settings {

	public const OPTION = 'dashbread_settings';

	/** @return array<string,mixed> */
	public static function defaults(): array {
		return array(
			'route'          => 'app',
			'site_name'      => '',
			'logo_id'        => 0,
			'primary'        => '#4f46e5',
			'mode'           => 'light',   // light | dark | auto
			'preset'         => 'console', // console | comfort
			'redirect_login' => 1,         // wp-login.php -> Dashbread login (non-admins)
			'land_in_app'    => 1,         // after login go to /app
			'hide_admin_bar' => 1,         // for users without edit_posts
			'block_admin'    => 1,         // wp-admin -> /app for users without edit_posts
			'legacy_login'   => 1,         // /login -> /app redirect
			'footer_text'    => '',
			'powered_by'     => 0,         // "Powered by Dashbread" in the app footer — opt-in (wp.org guideline 10)
			'menus'          => array(),   // location => menu term id, kept here so it survives theme switches
		);
	}

	public function register(): void {
		add_action( 'after_switch_theme', array( $this, 'reapply_menu_locations' ) );
	}

	/** @return array<string,mixed> */
	public static function all(): array {
		$saved = get_option( self::OPTION, array() );
		return array_merge( self::defaults(), is_array( $saved ) ? $saved : array() );
	}

	public static function get( string $key ): mixed {
		return self::all()[ $key ] ?? null;
	}

	/** @param array<string,mixed> $patch */
	public static function update( array $patch ): void {
		update_option( self::OPTION, array_merge( self::all(), $patch ) );
	}

	public static function route(): string {
		$r = sanitize_title( (string) self::get( 'route' ) );
		return '' === $r ? 'app' : $r;
	}

	/** Pretty permalinks give /app/...; on "Plain" permalinks the query form still works. */
	public static function app_url( string $path = '' ): string {
		$path = ltrim( $path, '/' );
		if ( '' === (string) get_option( 'permalink_structure' ) ) {
			return add_query_arg( \Dashbread\Core\Router::QV, '/' . $path, home_url( '/' ) );
		}
		return home_url( '/' . self::route() . '/' . $path );
	}

	public static function pretty_permalinks(): bool {
		return '' !== (string) get_option( 'permalink_structure' );
	}

	/** Core owns the location -> menu mapping; theme mods only mirror it. */
	public function reapply_menu_locations(): void {
		$mine = (array) self::get( 'menus' );
		if ( ! $mine ) {
			return;
		}
		$locations = get_theme_mod( 'nav_menu_locations', array() );
		set_theme_mod( 'nav_menu_locations', array_merge( (array) $locations, $mine ) );
	}
}