import type { BlockRegistration, ImportLayoutResult, Layout, LayoutDefinitionContext } from "@omnia/fx-models";
export type LayoutDefinitionValidationMode = "current" | "import" | "preparedImport";
export interface LayoutDefinitionValidationOptions {
    blockCatalogLoaded?: boolean;
    blockRegistrations?: BlockRegistration[];
    mode?: LayoutDefinitionValidationMode;
    preparedImportContext?: LayoutDefinitionContext;
    preparedImportLayout?: Layout;
    requireBlockCatalog?: boolean;
    requireTargetContext?: boolean;
    targetContext?: LayoutDefinitionContext;
    unavailableBlockManifestIds?: string[];
}
/**
 * Validates a raw layout definition and only returns a layout when every hard
 * invariant is satisfied. Repairs are deliberately limited to deterministic
 * structural changes. Arbitrary values inside block settings are preserved
 * because GUID-looking values there can be legitimate content IDs, except for
 * registration-declared protected values such as executable block content.
 */
export declare class LayoutDefinitionValidator {
    static validateAndRepairFromJsonString(json: string, currentLayout: Layout, options?: LayoutDefinitionValidationOptions): ImportLayoutResult;
    private static validateAndRepair;
    private static repairRootDefinition;
    private static sanitizeChildren;
    private static normalizeSectionType;
    private static validateAndRepairBlock;
    private static normalizeBlockSettings;
    private static protectBlockSettings;
    private static getCurrentBlockSettings;
    private static getNestedSettingValue;
    private static setNestedSettingValue;
    private static getSourceBlockSettings;
    private static migrateLegacyBlockSettings;
    private static normalizeThemeDefinitions;
    private static repairStructuralReferences;
    private static validatePostconditions;
    private static validateSafeObjectKeys;
    private static collectBaselineItems;
    private static getKnownNonRootItemStats;
    private static hasInheritedLayoutItems;
    private static collectThemeIds;
    private static validateInheritedItemsPresent;
    private static collectOwnerLayoutItemOverrides;
    private static createBlockRegistrationMaps;
    private static ensureItemsArray;
    private static readBlockChildren;
    private static ensureSettingsObject;
    private static repairItemType;
    private static repairValue;
    private static repairOptionalStructuralReference;
    private static removeRootStructuralReference;
    private static normalizeItemType;
    private static isAllowedChild;
    private static toSectionType;
    private static validateDefinitionContexts;
    private static normalizeLayoutDefinitionContext;
    private static describeLayoutDefinitionContext;
    private static normalizeGuid;
    private static createUniqueGuid;
    private static isPlainObject;
    private static cloneJson;
    private static jsonEquals;
    private static hasErrors;
    private static addIssue;
    private static createResult;
}