<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

class Aegistha_Settings {

	const OPTION = 'aegistha_settings';

	/**
	 * Default settings. Every fix and alert starts OFF — the owner opts in.
	 *
	 * @return array
	 */
	public static function defaults() {
		return array(
			'fixes'          => array(
				'enumeration' => 0,
				'file_editor' => 0,
				'xmlrpc'      => 0,
				'version'     => 0,
				'headers'     => 0,
			),
			'alerts_enabled' => 0,
		);
	}

	/**
	 * Saved settings merged over defaults (shape-safe).
	 *
	 * @return array
	 */
	public static function get() {
		$saved = get_option( self::OPTION, array() );
		return self::sanitize( is_array( $saved ) ? $saved : array() );
	}

	/**
	 * Coerce any input into the exact settings shape with 0/1 values.
	 *
	 * @param mixed $input Raw.
	 * @return array
	 */
	public static function sanitize( $input ) {
		$def   = self::defaults();
		$input = is_array( $input ) ? $input : array();
		$out   = array( 'fixes' => array() );

		$in_fixes = ( isset( $input['fixes'] ) && is_array( $input['fixes'] ) ) ? $input['fixes'] : array();
		foreach ( $def['fixes'] as $key => $unused ) {
			$out['fixes'][ $key ] = empty( $in_fixes[ $key ] ) ? 0 : 1;
		}
		$out['alerts_enabled'] = empty( $input['alerts_enabled'] ) ? 0 : 1;
		return $out;
	}

	/**
	 * Whether a specific fix is enabled.
	 *
	 * @param string $key Fix key.
	 * @return bool
	 */
	public static function fix_on( $key ) {
		$s = self::get();
		return ! empty( $s['fixes'][ $key ] );
	}
}