src/telegram/inline-buttons.test.ts

import { describe, expect, it } from "vitest";
import { resolveTelegramTargetChatType } from "./inline-buttons.js";

describe("resolveTelegramTargetChatType", () => {
  it("returns 'direct' for positive numeric IDs", () => {
    expect(resolveTelegramTargetChatType("5232990709")).toBe("direct");
    expect(resolveTelegramTargetChatType("123456789")).toBe("direct");
  });

  it("returns 'group' for negative numeric IDs", () => {
    expect(resolveTelegramTargetChatType("-123456789")).toBe("group");
    expect(resolveTelegramTargetChatType("-1001234567890")).toBe("group");
  });

  it("handles telegram: prefix from normalizeTelegramMessagingTarget", () => {
    expect(resolveTelegramTargetChatType("telegram:5232990709")).toBe("direct");
    expect(resolveTelegramTargetChatType("telegram:-123456789")).toBe("group");
    expect(resolveTelegramTargetChatType("TELEGRAM:5232990709")).toBe("direct");
  });

  it("handles tg/group prefixes and topic suffixes", () => {
    expect(resolveTelegramTargetChatType("tg:5232990709")).toBe("direct");
    expect(resolveTelegramTargetChatType("telegram:group:-1001234567890")).toBe("group");
    expect(resolveTelegramTargetChatType("telegram:group:-1001234567890:topic:456")).toBe("group");
    expect(resolveTelegramTargetChatType("-1001234567890:456")).toBe("group");
  });

  it("returns 'unknown' for usernames", () => {
    expect(resolveTelegramTargetChatType("@username")).toBe("unknown");
    expect(resolveTelegramTargetChatType("telegram:@username")).toBe("unknown");
  });

  it("returns 'unknown' for empty strings", () => {
    expect(resolveTelegramTargetChatType("")).toBe("unknown");
    expect(resolveTelegramTargetChatType("   ")).toBe("unknown");
  });
});