airent/lib/types.d.ts

Airent Framework for JavaScript Backend - a lightweight data entity and presentation framework

import AsyncLock from "async-lock";
type EntityConstructor<MODEL, CONTEXT, ENTITY> = {
    new (model: MODEL, context: CONTEXT, group: ENTITY[], lock: AsyncLock): ENTITY;
};
type LoadKey = Record<string, any>;
type LoadConfig<ENTITY, LOADED> = {
    name: string;
    filter: (one: ENTITY) => boolean;
    getter?: (sources: ENTITY[]) => LoadKey[];
    loader?: (keys: LoadKey[]) => Promise<LOADED[]>;
    setter?: (sources: ENTITY[], targets: LOADED[]) => void;
};
type Select<RESPONSE, FIELD_REQUEST> = FIELD_REQUEST extends Record<string, any> ? {
    [KEY in keyof FIELD_REQUEST as FIELD_REQUEST[KEY] extends boolean | Record<string, any> ? KEY : never]: KEY extends keyof RESPONSE ? FIELD_REQUEST[KEY] extends Record<string, any> ? RESPONSE[KEY] extends Array<infer INNER> | undefined ? INNER extends Record<string, any> ? Array<Select<INNER, FIELD_REQUEST[KEY]>> : never : null extends RESPONSE[KEY] ? RESPONSE[KEY] extends Record<string, any> | null | undefined ? /* type is object */ Select<NonNullable<RESPONSE[KEY]>, FIELD_REQUEST[KEY]> | null : never : RESPONSE[KEY] extends Record<string, any> | undefined ? Select<NonNullable<RESPONSE[KEY]>, FIELD_REQUEST[KEY]> : never : FIELD_REQUEST[KEY] extends boolean ? Exclude<RESPONSE[KEY], undefined> : never : never;
} : FIELD_REQUEST extends boolean ? RESPONSE : never;
export { AsyncLock, EntityConstructor, LoadConfig, LoadKey, Select };