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import type { KeyCode } from "../keycode/key_code.ts";import { blue, dim, underline, yellow } from "./deps.ts";import { Figures } from "./figures.ts";import {  GenericPrompt,  GenericPromptKeys,  GenericPromptOptions,  GenericPromptSettings,} from "./_generic_prompt.ts";
/** Toggle key options. */export interface ToggleKeys extends GenericPromptKeys {  active?: string[];  inactive?: string[];}
/** Generic prompt options. */export interface ToggleOptions extends GenericPromptOptions<boolean, string> {  active?: string;  inactive?: string;  keys?: ToggleKeys;}
/** Toggle prompt settings. */interface ToggleSettings extends GenericPromptSettings<boolean, string> {  active: string;  inactive: string;  keys: ToggleKeys;}
/** Toggle prompt representation. */export class Toggle extends GenericPrompt<boolean, string, ToggleSettings> {  protected status: string = typeof this.settings.default !== "undefined"    ? this.format(this.settings.default)    : "";
  /** Execute the prompt and show cursor on end. */  public static prompt(    options: string | ToggleOptions,  ): Promise<boolean> {    if (typeof options === "string") {      options = { message: options };    }
    return new this({      pointer: blue(Figures.POINTER_SMALL),      prefix: yellow("? "),      indent: " ",      active: "Yes",      inactive: "No",      ...options,      keys: {        active: ["right", "y", "j", "s", "o"],        inactive: ["left", "n"],        ...(options.keys ?? {}),      },    }).prompt();  }
  protected message(): string {    let message = super.message() + " " + this.settings.pointer + " ";
    if (this.status === this.settings.active) {      message += dim(this.settings.inactive + " / ") +        underline(this.settings.active);    } else if (this.status === this.settings.inactive) {      message += underline(this.settings.inactive) +        dim(" / " + this.settings.active);    } else {      message += dim(this.settings.inactive + " / " + this.settings.active);    }
    return message;  }
  /** Read user input from stdin, handle events and validate user input. */  protected read(): Promise<boolean> {    this.tty.cursorHide();    return super.read();  }
  /**   * Handle user input event.   * @param event Key event.   */  protected async handleEvent(event: KeyCode): Promise<void> {    switch (true) {      case event.sequence === this.settings.inactive[0].toLowerCase():      case this.isKey(this.settings.keys, "inactive", event):        this.selectInactive();        break;      case event.sequence === this.settings.active[0].toLowerCase():      case this.isKey(this.settings.keys, "active", event):        this.selectActive();        break;      default:        await super.handleEvent(event);    }  }
  /** Set active. */  protected selectActive() {    this.status = this.settings.active;  }
  /** Set inactive. */  protected selectInactive() {    this.status = this.settings.inactive;  }
  /**   * Validate input value.   * @param value User input value.   * @return True on success, false or error message on error.   */  protected validate(value: string): boolean | string {    return [this.settings.active, this.settings.inactive].indexOf(value) !== -1;  }
  /**   * Map input value to output value.   * @param value Input value.   * @return Output value.   */  protected transform(value: string): boolean | undefined {    switch (value) {      case this.settings.active:        return true;      case this.settings.inactive:        return false;    }  }
  /**   * Format output value.   * @param value Output value.   */  protected format(value: boolean): string {    return value ? this.settings.active : this.settings.inactive;  }
  /** Get input value. */  protected getValue(): string {    return this.status;  }}