import { describe, expect, test } from "vitest";

import {
  formatDialogMessageLines,
  getMessageContentWidth,
  getMessageDialogWidth,
} from "../../src/tui/utils/format-dialog-message.js";

describe("formatDialogMessageLines", () => {
  test("drops empty lines from leading newlines", () => {
    const lines = formatDialogMessageLines("\n- first\n- second", 80);

    expect(lines).toEqual(["- first", "- second"]);
  });

  test("keeps short lines unchanged", () => {
    const lines = formatDialogMessageLines("- actions.receive: Invalid", 80);

    expect(lines).toEqual(["- actions.receive: Invalid"]);
  });

  test("breaks long dot-separated paths at segment boundaries", () => {
    const line =
      '- actions.requestFungibleTokens.roles.receiver.requirements: Unrecognized key: "generate"';
    const lines = formatDialogMessageLines(line, 56);

    expect(lines.length).toBeGreaterThan(1);
    expect(lines.join("\n")).toContain("actions.requestFungibleTokens.");
    expect(lines.every((entry) => entry.length <= 58)).toBe(true);
    expect(lines[1]?.startsWith("  ")).toBe(true);
  });
});

describe("dialog width helpers", () => {
  test("getMessageDialogWidth respects terminal bounds", () => {
    expect(getMessageDialogWidth(120)).toBe(100);
    expect(getMessageDialogWidth(80)).toBe(76);
    expect(getMessageDialogWidth(40)).toBe(60);
  });

  test("getMessageContentWidth subtracts border and padding", () => {
    expect(getMessageContentWidth(76)).toBe(70);
  });
});