export default class Helpers {
  //@ts-expect-error
  readonly chatListScroll = $("#chatlist").tinyscrollbar();

  isColor(strColor: string): boolean {
    const s = new Option().style;
    s.color = strColor;
    return s.color !== "";
  }

  suicide(msg: string): void {
    document.body.innerHTML = /* html */ `
          <div class="text-center" style="margin: 45vh auto; font-size: 3em;">${msg}</div>
        `;
    throw new Error(
      "This page has committed suicide by design, that's a feature!"
    );
  }

  updateScrollbar(update: string) {
    $(this.chatListScroll).data().plugin_tinyscrollbar.update(update);
  }

  get getRandomColor(): string {
    return "#" + (Math.random().toString(16) + "000000").substring(2, 8);
  }

  get getUsername(): string {
    let username = prompt("Gimme your name: ");
    if (username === null) {
      this.suicide("You should give me your name!");
      throw new Error("NoNameError");
    }
    username = username.trim();
    if (username === "Server") {
      this.suicide("That name is illegal!");
      throw new Error("IllegalNameError");
    }
    return username;
  }
}