import { describe, expect, it } from "vitest";
import {
  applyPipeline,
  textInventory,
  type TransformStep,
} from "../../src/text/pipeline";

const step = (type: TransformStep["type"], option = ""): TransformStep => ({
  id: type,
  type,
  option,
  enabled: true,
});
describe("text pipelines", () => {
  it("applies transformations in the declared order", () =>
    expect(
      applyPipeline(" b \nA\na", [
        step("trim-lines"),
        step("dedupe-lines"),
        step("sort-lines", "en"),
      ]).output,
    ).toBe("a\nA\nb"));
  it("keeps disabled steps out of the report", () =>
    expect(
      applyPipeline("A", [{ ...step("case", "lower"), enabled: false }]),
    ).toEqual({ output: "A", steps: [], warnings: [] }));
  it("escapes HTML as data", () =>
    expect(
      applyPipeline("<img src=x onerror=1>", [step("escape", "html")]).output,
    ).toBe("&lt;img src=x onerror=1&gt;"));
  it("reports lossy transliteration", () =>
    expect(applyPipeline("Crème", [step("transliterate")]).warnings[0]).toMatch(
      /lossy/u,
    ));
  it("tracks exact line endings", () =>
    expect(textInventory("a\r\nb\nc\r")).toMatchObject({
      crlf: 1,
      bareLf: 1,
      bareCr: 1,
      finalNewline: true,
    }));
});