import { mkdtempSync, rmSync } from "node:fs";
import { tmpdir } from "node:os";
import path from "node:path";
import { afterEach, describe, expect, it } from "vitest";
import {
  isProjectWorkspacePath,
  projectWorkspaceRelativePath,
  resolveProjectHostPath,
} from "./project-workspace-path.js";

describe("project workspace paths", () => {
  const roots: string[] = [];

  afterEach(() => {
    for (const root of roots.splice(0)) {
      rmSync(root, { recursive: true, force: true });
    }
  });

  it("detects project-root paths", () => {
    expect(isProjectWorkspacePath("project")).toBe(true);
    expect(isProjectWorkspacePath("project/src/main.ts")).toBe(true);
    expect(isProjectWorkspacePath("shared/notes.txt")).toBe(false);
  });

  it("resolves host paths under the linked project folder", () => {
    const root = mkdtempSync(path.join(tmpdir(), "project-workspace-path-"));
    roots.push(root);
    expect(resolveProjectHostPath(root, "project")).toBe(path.resolve(root));
    expect(resolveProjectHostPath(root, "project/src/app.ts")).toBe(
      path.resolve(root, "src/app.ts"),
    );
    expect(() => resolveProjectHostPath(root, "project/../outside")).toThrow(/escapes/i);
  });

  it("extracts relative segments from stored paths", () => {
    expect(projectWorkspaceRelativePath("project")).toBe("");
    expect(projectWorkspaceRelativePath("project/docs/readme.md")).toBe("docs/readme.md");
  });
});