import { GraphQLSchema } from 'graphql';
import { YAMLNode } from 'yaml-ast-parser';
import { ParsedProject, ParsedProjectSource } from '../config/parsed-project';
import { DatabaseAdapter } from '../database/database-adapter';
import { Model, ValidationContext, ValidationResult } from '../model';
import { Project, ProjectOptions } from '../project/project';
import { ProjectSource } from '../project/source';
import { PlainObject } from '../utils/utils';
/**
 * Validates a project and thus determines whether createSchema() would succeed
 */
export declare function validateSchema(project: Project): ValidationResult;
export declare function validateAndPrepareSchema(project: Project): {
    validationResult: ValidationResult;
    model: Model;
};
/**
 Create an executable schema for a given schema definition.
 A schema definition is an array of definition parts, represented
 as a (sourced) SDL string or AST document.
 Use the optional context to inject your logging framework.
 */
export declare function createSchema(project: Project, databaseAdapter: DatabaseAdapter): GraphQLSchema;
export declare function getModel(project: Project): Model;
/**
 * Parse all schema parts sources which aren't AST already and deep clone all AST sources.
 */
export declare function parseProject(project: Project, validationContext: ValidationContext): ParsedProject;
export declare function parseProjectSource(projectSource: ProjectSource, options: ProjectOptions, validationContext: ValidationContext): ParsedProjectSource | undefined;
export declare function extractJSONFromYAML(root: YAMLNode, validationContext: ValidationContext, source: ProjectSource): PlainObject | undefined;