import Model from "../../model.js";
import type { ModelName, ModuleDatabase } from "../../types.js";
export declare const ARRAY_ASKING_RELATIONSHIPS: Set<string>;
export type RelationshipType = "BelongsTo" | "OneToOne" | "HasMany" | "ManyToMany";
export type RelationshipCache = WeakMap<Model, null | Model | Model[]>;
export interface RelationshipMetadata {
    RelationshipClass: typeof Model;
    RelationshipCache: RelationshipCache;
    relationshipName: string;
    relationshipType: RelationshipType;
    foreignKeyColumnName: null | string;
    SourceClass: typeof Model;
    ReverseRelationshipCache: RelationshipCache;
    reverseRelationshipName: string;
    reverseRelationshipType: RelationshipType;
    reverseRelationshipForeignKeyColumnName: null | string;
}
export interface BelongsToRelationshipMetadata extends RelationshipMetadata {
    foreignKeyColumnName: string;
    reverseRelationshipForeignKeyColumnName: null;
}
export interface HasOneRelationshipMetadata extends RelationshipMetadata {
    foreignKeyColumnName: null;
    reverseRelationshipForeignKeyColumnName: string;
}
export interface HasManyRelationshipMetadata extends RelationshipMetadata {
    foreignKeyColumnName: null;
    reverseRelationshipForeignKeyColumnName: string;
}
export interface RelationshipTable {
    [relationshipName: string]: RelationshipMetadata;
}
export interface ReverseRelationshipsTable {
    ModelName: RelationshipMetadata[];
}
interface BelongsToColumnTable {
    [belongsToColumnForeignKeyName: string]: RelationshipMetadata;
}
export interface RelationshipSummary {
    [relationshipName: string]: typeof Model | Array<typeof Model>;
}
export default class RelationshipSchema {
    static _relationshipTable: Map<ModelName, RelationshipTable>;
    static getRelationshipTable(Class: typeof Model, relationshipTypeFilter?: RelationshipType): RelationshipTable;
    static _reverseRelationshipTables: ModuleDatabase<ReverseRelationshipsTable>;
    static getReverseRelationshipsTable(Class: typeof Model): ReverseRelationshipsTable;
    static getRelationshipMetadataFor(Class: typeof Model, relationshipName: string): RelationshipMetadata;
    static _belongsToColumnTable: ModuleDatabase<BelongsToColumnTable>;
    static getBelongsToColumnTable(Class: typeof Model): BelongsToColumnTable;
    static _belongsToColumnNames: ModuleDatabase<Set<string>>;
    static getBelongsToColumnNames(Class: typeof Model): Set<string>;
    static get relationshipsSummary(): ModuleDatabase<RelationshipSummary>;
    static resetSchema(Class?: typeof Model): typeof RelationshipSchema;
}
export {};