import { JSONSchema4 } from 'json-schema';
import { PgType } from '../abstractions';
/**
 * Returns true if a JSON schema property element is a primitive property.
 * @remarks
 * A primitive property is considered to be a property whose type is either
 * a primitive type or an array of primitive type.
 * @param schema - Schema element to analyze.
 */
export declare function isPrimitiveProperty(schema: JSONSchema4): boolean;
/**
 * Returns true if a JSON schema property element is an object property.
 * @remarks
 * An object property is considered to be a property whose type is either
 * of type object or an array of type object.
 * @param schema - Schema element to analyze.
 */
export declare function isObjectProperty(schema: JSONSchema4): boolean;
/**
 * Returns true if schema property type is a primitive.
 * @param typeName - Type name to check.
 */
export declare function isPrimitiveType(typeName: unknown): boolean;
/**
 * Returns a property (defined in 'properties') schema by name from JSON schema.
 * @param schema - JSON schema where the property exists.
 * @param propertyName - Name of the property to extract.
 */
export declare function getPropertySchema(schema: JSONSchema4, propertyName: string): JSONSchema4;
/**
 * Maps JSON schema's property type to a Postgres type.
 * @param schema - Property schema.
 * @throws If the schema property type is not supported.
 */
export declare function mapToPgType(schema: JSONSchema4): PgType;
/**
 * Returns an array of all defined content metadata schemas (movie, collection etc.).
 * @param schema - Publish message schema.
 */
export declare function getContentMetadataSchemas(schemaGlob: string): Promise<JSONSchema4[]>;
/**
 * Separates primitive properties from object properties.
 * @param schema - Content metadata schema.
 * @param ignoredProperties - Array of ignored properties.
 * @returns Tuple of separated properties: first element will be primitive properties, second object properties.
 */
export declare function separateProperties(schema: JSONSchema4, ignoredProperties: string[]): [{
    [p: string]: JSONSchema4;
}, {
    [p: string]: JSONSchema4;
}];
/**
 * Filters out properties by name from a dictionary of JSON schema properties.
 * @param schemas - Dictionary of schemas.
 * @param excluded - Array of excluded names.
 */
export declare function filterProperties(schemas: {
    [p: string]: JSONSchema4;
}, excluded: string[]): {
    [p: string]: JSONSchema4;
};
/**
 * Returns schema's title, throws if it is undefined.
 * @param schema - JSON schema
 */
export declare function getSchemaTitle(schema: JSONSchema4): string;