import { Evented } from '@orbit/core';
import { Dict } from '@orbit/utils';
import { ArrayValidationOptions } from '@orbit/validators';
export interface FieldValidationOptions {
    required?: boolean;
    [key: string]: unknown;
}
export interface AttributeDefinition {
    type?: string;
    serialization?: Dict<unknown>;
    deserialization?: Dict<unknown>;
    validation?: FieldValidationOptions & {
        notNull?: boolean;
    };
    meta?: Dict<unknown>;
}
export interface HasOneRelationshipDefinition {
    kind: 'hasOne';
    type?: string | string[];
    model?: string | string[];
    inverse?: string;
    dependent?: 'remove';
    validation?: FieldValidationOptions & {
        notNull?: boolean;
    };
    meta?: Dict<unknown>;
}
export interface HasManyRelationshipDefinition {
    kind: 'hasMany';
    type?: string | string[];
    model?: string | string[];
    inverse?: string;
    dependent?: 'remove';
    validation?: FieldValidationOptions & ArrayValidationOptions;
    meta?: Dict<unknown>;
}
export declare type RelationshipDefinition = HasOneRelationshipDefinition | HasManyRelationshipDefinition;
export interface KeyDefinition {
    /**
     * @deprecated since v0.17 - not used by any standard serializers
     */
    primaryKey?: boolean;
    validation?: FieldValidationOptions & {
        notNull?: boolean;
    };
    meta?: Dict<unknown>;
}
export interface ModelDefinition {
    keys?: Dict<KeyDefinition>;
    attributes?: Dict<AttributeDefinition>;
    relationships?: Dict<RelationshipDefinition>;
}
/**
 * Settings used to initialze and/or upgrade schemas.
 */
export interface RecordSchemaSettings {
    /**
     * Schema version. Defaults to 1.
     */
    version?: number;
    /**
     * Function used to generate record IDs.
     */
    generateId?: (model?: string) => string;
    /**
     * Function used to pluralize names.
     *
     * @deprecated
     */
    pluralize?: (word: string) => string;
    /**
     * Function used to singularize names.
     *
     * @deprecated
     */
    singularize?: (word: string) => string;
    /**
     * Map of model definitions.
     */
    models?: Dict<ModelDefinition>;
}
export declare type RecordSchemaEvent = 'upgrade';
export interface RecordSchema extends Evented<RecordSchemaEvent> {
}
/**
 * A `Schema` defines the models allowed in a source, including their keys,
 * attributes, and relationships. A single schema may be shared across multiple
 * sources.
 */
export declare class RecordSchema {
    private _models;
    private _version;
    constructor(settings?: RecordSchemaSettings);
    /**
     * Version
     */
    get version(): number;
    /**
     * Upgrades Schema to a new version with new settings.
     *
     * Emits the `upgrade` event to cue sources to upgrade their data.
     */
    upgrade(settings?: RecordSchemaSettings): Promise<void>;
    /**
     * Registers a complete set of settings
     */
    protected _applySettings(settings: RecordSchemaSettings): void;
    /**
     * Generate an id for a given model type.
     */
    generateId(type?: string): string;
    /**
     * A naive pluralization method.
     *
     * Deprecated in favor of inflectors now in @orbit/serializers
     *
     * @deprecated since v0.17, remove in v0.18
     */
    pluralize(word: string): string;
    /**
     * A naive singularization method.
     *
     * Deprecated in favor of inflectors now in @orbit/serializers
     *
     * @deprecated since v0.17, remove in v0.18
     */
    singularize(word: string): string;
    get models(): Dict<ModelDefinition>;
    getModel(type: string): ModelDefinition;
    getAttribute(type: string, attribute: string): AttributeDefinition;
    getKey(type: string, key: string): KeyDefinition;
    getRelationship(type: string, relationship: string): RelationshipDefinition;
    hasModel(type: string): boolean;
    hasAttribute(type: string, attribute: string): boolean;
    hasKey(type: string, key: string): boolean;
    hasRelationship(type: string, relationship: string): boolean;
    eachAttribute(type: string, callbackFn: (name: string, attribute: AttributeDefinition) => void): void;
    eachKey(type: string, callbackFn: (name: string, key: KeyDefinition) => void): void;
    eachRelationship(type: string, callbackFn: (name: string, relationship: RelationshipDefinition) => void): void;
    _deprecateRelationshipModel(models: Dict<ModelDefinition>): void;
}