/*
  Copyright (c) 2023-2024 Will Rudolph <@willrudolph.com>

  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

import {ESDJ_LIMIT} from "./statics.js";

// * Typescript Notes for SDJ *
// SDJ primarily focuses on JSON/JavaScript compatibility - not full range/all-possible TypeScript support
// Types/Interfaces defined for Internal are marked Int
// Full TypeScript compatibility should be set externally or provided by another library
//
// Naming Conventions
// [Int]Name - Types/Interfaces defined for Internal library use type-unsafe usually, not to be used outside of lib
// [Sdj]Name - Indicates a JS Class that requires construction/instantiation
// I[ClassName]Sdj - Indicates a TypeScript Interface for JavaScript Class object that contains code/refs
// [JI]Name - JSON Immutable typescript primitives Types
// Name[JI] - Indicates a Json/Immutable Interface that contains no code, usually a constructor input
// $items, $graph- $Values are Class only non-TS interface for internal classes or editing

// JI / JSON Immutable Primitives


// eslint-disable-next-line no-use-before-define
export type JIValue = JIPrimitive | JIObject | JIArray;
export type ExtAllowedValue = JIValue | undefined | null;
export interface JIObject {
  [key: string]: JIValue | undefined;
}
export type JIArray = JIValue[] | readonly JIValue[];
export type JIPrimitive = string | boolean | number;

export declare type ArrayFlatType = number[] | string[] | boolean[];
export const SdjLimiterGroup: ESDJ_LIMIT[] = [ESDJ_LIMIT.NONE, ESDJ_LIMIT.REQ,
  ESDJ_LIMIT.REQ_HIDE, ESDJ_LIMIT.REQ_ONE, ESDJ_LIMIT.ONE_NONE,
  ESDJ_LIMIT.KEY_IDX, ESDJ_LIMIT.SYS_REQ];
export interface SdKeyProps {
  [key: string]: JIPrimitive;
}

// Support interfaces

export interface NumKeyStore<Type> {
  [numKey: number | string]: Type;
}

export interface GenKeyStore<Type> {
  [key: string]: Type;
}

// Standard Function signatures available outside of library; this list may grow
export declare type FuncStrNumVoid = (input: string, num?: number) => void;

export declare type FuncValueInput = (inputVal: ExtAllowedValue) => JIValue | undefined;
export declare type FuncJsonValueValidator = (value: JIValue) => boolean;
export declare type FuncValueOutput = (value: JIValue | undefined) => ExtAllowedValue;
export interface Info extends JIObject {
  name: string;
  uniqId: string;
  created: number;
  modified: number;
}

export interface InfoSearch {
  name?: string;
  uniqId?: string;
  created?: number;
  modified?: number;
}
// Core Self Description
export interface CoreSD {
  sdKey: string;
  sdId: number;
}

export interface CoreSDSearch extends JIObject {
  sdId?: number;
  sdKey?: string;
  // flag to check if content has data
  checkData?: boolean; // default = false | undefined
  // Entities, does checks if actual parentIds, childIds, sdItems
  // is populated - when sdProps is used flag performs an exact match
  //
  // Items, checks if data is present, does not work for REQ items
}

// eslint-disable-next-line no-use-before-define
export type DataKeyValue = JIValue | undefined;
// eslint-disable-next-line no-use-before-define
export type DataJIValues = Info | DataJI[] | DataKeyValue;
export interface DataJI extends CoreSD, JIObject {
  // sdId === entity.sdId
  // sdKey === unique string key per sdChildren/root
  sdInfo?: Info;
  sdChildren?: DataJI[];
  [dataKey: string]: DataJIValues;
}

export interface ItemSearch extends CoreSDSearch {
  type?: string;
  limiter?: ESDJ_LIMIT;
}

export interface ItemJI extends CoreSD {
  // sdId === unique item id per description
  // sdKey === unique DataJI data Key, and per description
  type: string;
  limiter?: ESDJ_LIMIT;
}

export interface EntityCore {
  dataInfo?: boolean;
  sdItems?: number[]; // Item ids associated with Entity, excluding extended
  extendIds?: number[]; // Entity sdId(s) from which the entity extends
  parentIds?: number[]; // Entity sdId(s) which this item can be a child of
  childIds?: number[]; // Entity sdId(s) which can be children
  limiter?: ESDJ_LIMIT;
  // assigned/optional key values that can be assigned to the entity
  sdProps?: SdKeyProps;
}

export interface EntityJI extends EntityCore, CoreSD {
  // sdId === unique entity id per description
  // sdKey === unique entity name per description
}

export interface EntitySearch extends CoreSDSearch, EntityCore {}
export declare type FuncLexGraphVerify = (entities: EntityJI[]) => boolean;

export interface ValidatorJI {
  type: string;
  input?: FuncValueInput;
  valid: FuncJsonValueValidator;
  output?: FuncValueOutput
}

export interface IValidator extends ValidatorJI {
  input: FuncValueInput;
}

export interface DescriptionJI {
  sdInfo: Info;
  items: ItemJI[];
  graph: EntityJI[];
  lexicons?: string[];
  lang?: string;
}

export interface DescriptionSearch {
  name?: string
  sdInfo?: InfoSearch;
  hasEntity?: EntitySearch
  hasItem?: ItemSearch
  usesLexicons?: string[]
  lang?: string;
}


// Self Described JSON Immutable
export interface SdJsonJI {
  $id: string // json schema id
  description: DescriptionJI;
  sdInfo: Info;
  lang?: string;
  data?: DataJI[];
}

export declare type FuncLexDataVerify = (sdJsonJI: SdJsonJI) => boolean;

export interface ILexicon {
  name: string;
  required?: string[];
  entities?: EntityJI[];
  items?: ItemJI[];
  validators?: GenKeyStore<ValidatorJI>;
  graphVerify?: FuncLexGraphVerify;
  dataVerify?: FuncLexDataVerify;
}