import { WithId } from 'mongodb';
import { ObjectType } from './types';
import { TimestampSchema, RequireAtLeastOne, VALIDATION_ACTIONS, VALIDATION_LEVEL } from './utils';
export type SchemaTimestampOptions = RequireAtLeastOne<{
    createdAt?: string;
    updatedAt?: string;
}> | boolean;
export interface SchemaOptions<TProperties> {
    defaults?: Partial<TProperties>;
    timestamps?: SchemaTimestampOptions;
    validationAction?: VALIDATION_ACTIONS;
    validationLevel?: VALIDATION_LEVEL;
}
type TimestampsOptions = Required<Pick<SchemaOptions<unknown>, 'timestamps'>>;
export type SchemaType<TProperties extends Record<string, unknown>, TOptions extends SchemaOptions<unknown>> = TOptions extends TimestampsOptions ? ObjectType<TimestampSchema<TOptions['timestamps']> & WithId<TProperties>> : ObjectType<WithId<TProperties>>;
/**
 * @module intro
 * @description
 *
 * A schema is what defines a Model and the validation performed on the collection associated with the Model.
 */
/**
 * Creates a schema for a model and define validation options for it.
 *
 * Read more about the validation [options](https://docs.mongodb.com/manual/core/schema-validation/index.html#behavior)
 * in the MongoDB docs.
 *
 * Under the hood it is just a wrapper around the [`object`](api/types.md#object) type with some default properties
 * (e.g. `_id` and timestamps properties).
 *
 * While the default `_id` property is added with an `ObjectId` type, its type can be customized into a `string` or a `number`.
 *
 * The options are exported as a result type (the second value in the return tuple).
 *
 * @name schema
 *
 * @param properties {Record<string, unknown>}
 * @param [options] {SchemaOptions}
 * @param [options.defaults] {Partial<TProperties>}
 * @param [options.timestamps=false] {TimestampSchemaOptions}
 * @param [options.validationAction=VALIDATION_ACTIONS.ERROR] {VALIDATION_ACTIONS}
 * @param [options.validationLevel=VALIDATION_LEVEL.STRICT] {VALIDATION_LEVEL}
 *
 * @returns {Array} The return type is `[TSchema, TOptions]`
 *
 * @example
 * import { schema, types, VALIDATION_ACTIONS, VALIDATION_LEVEL } from 'papr';
 *
 * const userSchema = schema({
 *   active: types.boolean(),
 *   age: types.number(),
 *   firstName: types.string({ required: true }),
 *   lastName: types.string({ required: true }),
 * });
 *
 * export type UserDocument = typeof userSchema[0];
 * export type UserOptions = typeof userSchema[1];
 *
 * const orderSchema = schema({
 *   _id: types.number({ required: true }),
 *   user: types.objectId({ required: true }),
 *   product: types.string({ required: true })
 * }, {
 *   defaults: { product: 'test' },
 *   timestamps: true,
 *   validationAction: VALIDATION_ACTIONS.WARN,
 *   validationLevel: VALIDATION_LEVEL.MODERATE
 * });
 *
 * export type OrderDocument = typeof orderSchema[0];
 * export type OrderOptions = typeof orderSchema[1];
 */
export default function schema<TProperties extends Record<string, unknown>, TOptions extends SchemaOptions<TProperties>>(properties: TProperties, options?: TOptions): [SchemaType<TProperties, TOptions>, TOptions];
export {};