import { HyperContext } from "./HyperContext";
import { questionAsync } from "../Readline/readline";
import { error } from "../utils/errorsGenerator";
import chalk from "chalk";

export class Hyper {
  static question = questionAsync;

  constructor(
    private _contexts: Array<HyperContext> = [],
    private _stopWord: string = "exit",
    private _defaultContext: HyperContext = new HyperContext()
  ) {}

  set defaultContext(ctx: HyperContext) {
    this._defaultContext = ctx;
  }

  get defaultContext() {
    return this._defaultContext;
  }

  get contexts() {
    return this._contexts;
  }

  get stopWord() {
    return this._stopWord;
  }

  set stopWord(sw: string) {
    this._stopWord = sw;
  }

  next(context: HyperContext): Hyper {
    this._contexts = [...this._contexts, context];

    return this;
  }

  back(): Hyper {
    if (this._contexts?.length > 1) this._contexts?.pop();

    return this;
  }

  clearContexts(): Hyper {
    this._contexts = [];

    return this;
  }

  private context() {
    return this.contexts[this.contexts.length - 1];
  }

  listen(): Hyper {
    if (!this.context()) {
      throw error(
        `${chalk.blueBright(`you need to set current context`)}`,
        "ctx error"
      );
    }

    questionAsync(this.context().marker()).then((response) => {
      if (response === this.stopWord) return;

      this.context().run(response, this);

      this.listen();
    });

    return this;
  }
}

export const createHyper = (): Hyper => {
  return new Hyper();
};

export default { Hyper, createHyper };