import { describe, it, expect } from "vitest";
import { manifestHandles, renderOutputBase } from "./exports";
import type { RenderManifest } from "./manifest";
import { nextTaskTitle } from "./preview";

describe("renderOutputBase", () => {
  it("follows the panel's house convention", () => {
    expect(renderOutputBase("UNG_102_019_010", "v001")).toBe("UNG_102_019_010_cmp_TT_v001");
  });

  // createExport names the comp task it creates after this basename, and
  // buildPreviewManifest names the MOV/MP4 off the same call — so a shot queued
  // with no task ends up with a task titled exactly like its preview file. The
  // title already carries the version, which makes finalizePreview's rename of
  // the task to the delivered version a no-op on that first export.
  it("gives a freshly created comp task a title finalizePreview leaves alone", () => {
    const title = renderOutputBase("UNG_102_019_010", "v003");
    expect(nextTaskTitle(title, "v003")).toBe(title);
  });
});

describe("manifestHandles", () => {
  const base = {} as RenderManifest;

  it("uses the panel's explicit handles, including an explicit none", () => {
    expect(manifestHandles({ ...base, review: { handleHead: 8, handleTail: 12 } })).toEqual({ head: 8, tail: 12 });
    expect(
      manifestHandles({ ...base, review: { handleHead: 0, handleTail: 0 }, source: { handleFrames: 8 } })
    ).toEqual({ head: 0, tail: 0 });
  });

  it("falls back to the handle length older panels sent with the plates", () => {
    expect(manifestHandles({ ...base, source: { handleFrames: 8 } })).toEqual({ head: 8, tail: 8 });
  });

  it("is unknown when the manifest says nothing", () => {
    expect(manifestHandles(base)).toBeNull();
  });
});