/**
 * @file promptAttach.test.ts — `claudePastes`: how files reach a `claude` pane.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */
import { describe, expect, it } from "vitest";
import { claudePastes, copiedFilePaths, localCandidates } from "../promptAttach";

describe("claudePastes", () => {
  it("pastes each image as its bare path and the other files as one @ mention paste", () => {
    expect(
      claudePastes(["/d/drops/a.png", "/d/drops/b-report.pdf", "/d/x.JPG", "/d/c.log"])
    ).toEqual(["/d/drops/a.png", "/d/x.JPG", "@/d/drops/b-report.pdf @/d/c.log"]);
  });

  it("keeps a Windows or spaced image path a mention", () => {
    expect(claudePastes(["C:\\u\\drops\\a.png", "/home/u/my shot.png"])).toEqual([
      '@C:/u/drops/a.png @"/home/u/my shot.png"',
    ]);
  });
});

/** A clipboard as the browser hands it to a paste handler. */
const clip = (data: Record<string, string>) =>
  ({ getData: (t: string) => data[t] ?? "" }) as unknown as DataTransfer;
const file = (name: string) => new File(["x"], name);

describe("localCandidates (a file manager's copy, pasted)", () => {
  it("takes the plain-text paths when their names match the pasted files", () => {
    expect(window.location.hostname).toBe("localhost");
    const dt = clip({ "text/plain": "/home/u/Videos/big.mp4\n/home/u/b c.pdf\n" });
    expect(localCandidates(dt, [file("b c.pdf"), file("big.mp4")])).toEqual([
      "/home/u/Videos/big.mp4",
      "/home/u/b c.pdf",
    ]);
  });

  it("takes file:// lines too, decoded", () => {
    const dt = clip({ "text/plain": "file:///home/u/a%20b.zip" });
    expect(localCandidates(dt, [file("a b.zip")])).toEqual(["/home/u/a b.zip"]);
  });

  it("refuses text that does not name exactly the pasted files", () => {
    expect(localCandidates(clip({ "text/plain": "/etc/passwd" }), [file("big.mp4")])).toBeNull();
    expect(localCandidates(clip({ "text/plain": "hello" }), [file("hello")])).toBeNull();
    expect(
      localCandidates(clip({ "text/plain": "/a/x.txt" }), [file("x.txt"), file("y.txt")])
    ).toBeNull();
  });

  it("prefers a uri-list (a drag) as before", () => {
    const dt = clip({ "text/uri-list": "file:///tmp/z.bin", "text/plain": "/other/z.bin" });
    expect(localCandidates(dt, [file("z.bin")])).toEqual(["/tmp/z.bin"]);
  });
});

describe("copiedFilePaths (no file beside the text)", () => {
  it("takes file:// text, never bare absolute paths, which stay text to paste", () => {
    expect(copiedFilePaths(clip({ "text/plain": "file:///home/u/a.txt" }))).toEqual([
      "/home/u/a.txt",
    ]);
    expect(copiedFilePaths(clip({ "text/plain": "/home/u/a.txt" }))).toBeNull();
  });
});