import { describe, it, expect } from "vitest";
import { downloadedFilePath } from "./localSource";

describe("downloadedFilePath", () => {
  // The download worker rewrites `downloads.file_path` to the absolute path it
  // actually wrote once the transfer completes, so a completed row is already
  // rooted. Joining it onto the storage root again produced
  // `/data/user/0/app//data/user/0/app/videos/x.mp4`, which the asset protocol
  // cannot open — offline video died with MEDIA_ERR_SRC_NOT_SUPPORTED while
  // audio, which resolves the same column through Rust, played fine.
  it("leaves a completed download's absolute path alone", () => {
    const root = "/data/user/0/com.dtourolle.jellytau";
    const stored = `${root}/videos/Taming of the Shrew.mp4`;

    expect(downloadedFilePath(root, stored)).toBe(stored);
  });

  it("roots a path that is still relative to the storage directory", () => {
    // Rows only hold a relative path before the worker completes them, but a
    // half-migrated database can still carry one.
    expect(downloadedFilePath("/var/data/jellytau", "videos/film.mp4")).toBe(
      "/var/data/jellytau/videos/film.mp4",
    );
  });

  it("leaves an absolute Windows path alone", () => {
    const stored = "C:\\Users\\u\\AppData\\jellytau\\videos\\film.mp4";

    expect(downloadedFilePath("C:\\Users\\u\\AppData\\jellytau", stored)).toBe(stored);
  });
});