import { describe, expect, it } from "vitest";
import {
  formatInviteCountWord,
  parseInvitePaste,
  splitInvitePasteTokens,
} from "../../lib/create/parseInviteEmails";

describe("parseInviteEmails", () => {
  it("splits comma, semicolon, and whitespace lists", () => {
    expect(
      splitInvitePasteTokens("rosa@example.org, dev@example.org; sam@example.org\nlee@example.org"),
    ).toEqual([
      "rosa@example.org",
      "dev@example.org",
      "sam@example.org",
      "lee@example.org",
    ]);
  });

  it("adds valid addresses and leaves invalid tokens in the remainder", () => {
    const result = parseInvitePaste(
      "rosa@example.org, jo@example, sam@example.org",
      ["maya@example.org"],
      30,
    );
    expect(result.added).toEqual(["rosa@example.org", "sam@example.org"]);
    expect(result.invalidRemainder).toBe("jo@example");
  });

  it("skips duplicates already on the list", () => {
    const result = parseInvitePaste(
      "maya@example.org, rosa@example.org",
      ["maya@example.org"],
      30,
    );
    expect(result.added).toEqual(["rosa@example.org"]);
    expect(result.skippedDuplicate).toBe(1);
  });

  it("keeps overflow addresses in the remainder once the max is hit", () => {
    const result = parseInvitePaste(
      "a@example.org, b@example.org, c@example.org",
      [],
      2,
    );
    expect(result.added).toEqual(["a@example.org", "b@example.org"]);
    expect(result.invalidRemainder).toBe("c@example.org");
  });

  it("uses words for counts through ten", () => {
    expect(formatInviteCountWord(5)).toBe("five");
    expect(formatInviteCountWord(11)).toBe("11");
  });
});