import type { QueryRouterServer, RouteOpts, Run, RouteMiddleware } from './route.ts';
import type { DataOpts, Query, Result } from '@kevisual/query/query';
// export type RouteObject<T extends readonly string[]> = {
//   [K in T[number]]: RouteOpts;
// };
export type { RouteOpts };
export type RouteObject = {
  [key: string]: RouteOpts;
};
type SimpleObject = Record<string, any>;
export function define<T extends Record<string, RouteOpts>>(
  value: T,
): {
    [K in keyof T]: T[K] & RouteOpts;
  } {
  return value as { [K in keyof T]: T[K] & RouteOpts };
}

export type RouteArray = RouteOpts[];
type ChainOptions = {
  app: QueryRouterServer;
};
class Chain {
  object: RouteOpts;
  app?: QueryRouterServer;
  constructor(object: RouteOpts, opts?: ChainOptions) {
    this.object = object;
    this.app = opts?.app;
  }
  get key() {
    return this.object.key;
  }
  get path() {
    return this.object.path;
  }
  setDescription(desc: string) {
    this.object.description = desc;
    return this;
  }
  setMeta(metadata: { [key: string]: any }) {
    this.object.metadata = metadata;
    return this;
  }
  setPath(path: string) {
    this.object.path = path;
    return this;
  }
  setMiddleware(middleware: RouteMiddleware[]) {
    this.object.middleware = middleware;
    return this;
  }
  setKey(key: string) {
    this.object.key = key;
    return this;
  }
  setId(key: string) {
    this.object.id = key;
    return this;
  }
  setRun<U extends SimpleObject = {}>(run: Run<U>) {
    this.object.run = run;
    return this;
  }
  define<U extends SimpleObject = {}>(run: Run<U>) {
    this.object.run = run;
    return this;
  }
  createRoute() {
    this.app.route(this.object).addTo(this.app);
    return this;
  }
}
type QueryChainOptions = {
  query?: Query;
  omitKeys?: string[];
};
class QueryChain {
  obj: SimpleObject = {};
  query: Query;
  omitKeys: string[] = ['metadata', 'description', 'validator'];
  constructor(value?: SimpleObject, opts?: QueryChainOptions) {
    this.obj = value || {};
    this.query = opts?.query;
    if (opts?.omitKeys) this.omitKeys = opts.omitKeys;
  }
  omit(obj: SimpleObject, key: string[] = []) {
    const newObj = { ...obj };
    key.forEach((k) => {
      delete newObj[k];
    });
    return newObj;
  }
  /**
   * 生成
   * @param queryData
   * @returns
   */
  getKey(queryData?: SimpleObject): Pick<RouteOpts, 'path' | 'key' | 'metadata' | 'description'> {
    const obj = this.omit(this.obj, this.omitKeys);
    return {
      ...obj,
      ...queryData,
    };
  }
  post<R = SimpleObject, P = SimpleObject>(data: P, options?: DataOpts): Promise<Result<R>> {
    const _queryData = this.getKey(data);
    return this.query.post(_queryData, options);
  }
  get<R = SimpleObject, P = SimpleObject>(data: P, options?: DataOpts): Promise<Result<R>> {
    const _queryData = this.getKey(data);
    return this.query.get(_queryData, options);
  }
}
export const util = {
  getChain: (obj: RouteOpts, opts?: ChainOptions) => {
    return new Chain(obj, opts);
  },
};

export class QueryUtil<T extends RouteObject = RouteObject> {
  obj: T;
  app: QueryRouterServer;
  query: Query;
  constructor(object: T, opts?: ChainOptions & QueryChainOptions) {
    this.obj = object;
    this.app = opts?.app;
    this.query = opts?.query;
  }
  static createFormObj<U extends RouteObject>(object: U, opts?: ChainOptions) {
    return new QueryUtil<U>(object, opts);
  }
  static create<U extends Record<string, RouteOpts>>(value: U, opts?: ChainOptions) {
    const obj = value as { [K in keyof U]: U[K] & RouteOpts };
    return new QueryUtil<U>(obj, opts);
  }
  get<K extends keyof T>(key: K): RouteOpts {
    return this.obj[key] as RouteOpts;
  }
  chain<K extends keyof T>(key: K, opts?: ChainOptions) {
    const obj = this.obj[key];
    let newOpts = { app: this.app, ...opts };
    return new QueryUtil.Chain(obj, newOpts);
  }
  queryChain<K extends keyof T>(key: K, opts?: QueryChainOptions) {
    const value = this.obj[key];
    let newOpts = { query: this.query, ...opts };
    return new QueryUtil.QueryChain(value, newOpts);
  }
  static Chain = Chain;
  static QueryChain = QueryChain;
  get routeObject() {
    return this.obj;
  }
}