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import type { KeyEvent } from "../keycode/key_event.ts";import {  GenericPrompt,  GenericPromptOptions,  GenericPromptSettings,} from "./_generic_prompt.ts";import { stripColor, underline } from "./deps.ts";
export interface GenericInputKeys {  moveCursorLeft?: string[];  moveCursorRight?: string[];  deleteCharLeft?: string[];  deleteCharRight?: string[];  submit?: string[];}
export interface GenericInputPromptOptions<T>  extends GenericPromptOptions<T, string> {  keys?: GenericInputKeys;}
export interface GenericInputPromptSettings<T>  extends GenericPromptSettings<T, string> {  keys?: GenericInputKeys;}
export abstract class GenericInput<T, S extends GenericInputPromptSettings<T>>  extends GenericPrompt<T, string, S> {  protected input = "";  protected index = 0;
  public static inject(value: string): void {    GenericPrompt.inject(value);  }
  protected constructor(settings: S) {    super({      ...settings,      keys: {        moveCursorLeft: ["left"],        moveCursorRight: ["right"],        deleteCharLeft: ["backspace"],        deleteCharRight: ["delete"],        submit: ["enter", "return"],        ...(settings.keys ?? {}),      },    });  }
  protected setPrompt(message: string) {    message += " " + this.settings.pointer + " ";
    const length = new TextEncoder().encode(stripColor(message)).length;
    message += underline(this.input);
    this.write(message);
    this.screen.cursorTo(length - 1 + this.index);  }
  protected async handleEvent(event: KeyEvent): Promise<boolean> {    switch (true) {      case event.name === "c":        if (event.ctrl) {          this.screen.cursorShow();          return Deno.exit(0);        }        if (event.sequence) {          this.addChar(event.sequence);        }        break;
      // case "up": // scroll history?      //   break;      //      // case "down": // scroll history?      //   break;
      case this.isKey(this.settings.keys, "moveCursorLeft", event):        this.moveCursorLeft();        break;
      case this.isKey(this.settings.keys, "moveCursorRight", event):        this.moveCursorRight();        break;
      case this.isKey(this.settings.keys, "deleteCharRight", event):        this.deleteCharRight();        break;
      case this.isKey(this.settings.keys, "deleteCharLeft", event):        this.deleteChar();        break;
      case this.isKey(this.settings.keys, "submit", event):        return true;
      default:        if (event.sequence && !event.meta && !event.ctrl) {          this.addChar(event.sequence);        }        break;    }
    return false;  }
  protected addChar(char: string): void {    this.input = this.input.slice(0, this.index) + char +      this.input.slice(this.index);    this.index++;  }
  protected moveCursorLeft(): void {    if (this.index > 0) {      this.index--;    }  }
  protected moveCursorRight(): void {    if (this.index < this.input.length) {      const index = this.input.indexOf(" ", this.index);      this.index++;    }  }
  protected deleteChar(): void {    if (this.index > 0) {      this.index--;      this.screen.cursorBackward(1);      this.input = this.input.slice(0, this.index) +        this.input.slice(this.index + 1);    }  }
  protected deleteCharRight(): void {    if (this.index < this.input.length) {      this.input = this.input.slice(0, this.index) +        this.input.slice(this.index + 1);    }  }
  protected getValue(): string {    return this.input;  }}