import { mkdtemp, rm, writeFile } from "node:fs/promises";
import { join } from "node:path";
import { tmpdir } from "node:os";

import { expect, test } from "bun:test";

import { createProjectManagementApp } from "./server.ts";
import { createProjectManagementStore } from "./store.ts";

test("project management app exposes MDTODO read model and Workbench link writes", async () => {
  const root = await mkdtemp(join(tmpdir(), "hwlab-project-management-"));
  try {
    await writeFile(join(root, "MDTODO.md"), "# Demo\n\n- [ ] Launch project nav\n- [x] Wire read model\n", "utf8");
    const app = createProjectManagementApp({
      env: {},
      store: createProjectManagementStore({ kind: "memory" }),
      sourceRoot: root,
      sourceId: "test-mdtodo",
      projectId: "project_test"
    });

    const ready = await app.fetch(new Request("http://service/health/ready"));
    expect(ready.status).toBe(200);

    const navigation = await json(app, "/v1/project-management/navigation");
    expect(navigation.navigation.id).toBe("project-management");

    const sources = await json(app, "/v1/project-management/mdtodo/sources");
    expect(sources.sources[0].sourceId).toBe("test-mdtodo");

    const files = await json(app, "/v1/project-management/mdtodo/files?sourceId=test-mdtodo");
    expect(files.files[0].taskCount).toBe(2);

    const tasks = await json(app, "/v1/project-management/mdtodo/tasks?sourceId=test-mdtodo");
    expect(tasks.tasks.map((task) => task.status)).toEqual(["open", "done"]);
    expect(tasks.tasks.every((task) => task.projectId === "project_test")).toBe(true);

    const links = await json(app, "/v1/project-management/workbench-links?projectId=project_test");
    expect(links.links).toEqual([]);

    const linkResponse = await app.fetch(new Request("http://service/v1/project-management/workbench-links", {
      method: "POST",
      headers: { "content-type": "application/json", "x-hwlab-actor-id": "usr_test" },
      body: JSON.stringify({ projectId: "project_test", taskRef: tasks.tasks[0].taskRef, sessionId: "ses_project_test", role: "launch", link: { workbenchUrl: "/workbench/sessions/ses_project_test", launchContext: { projectId: "project_test", taskRef: tasks.tasks[0].taskRef, title: tasks.tasks[0].title } } })
    }));
    expect(linkResponse.status).toBe(201);
    const createdLink = await linkResponse.json();
    expect(createdLink.link.sessionId).toBe("ses_project_test");

    const linkedTasks = await json(app, "/v1/project-management/mdtodo/tasks?sourceId=test-mdtodo");
    expect(linkedTasks.tasks[0].linkCount).toBe(1);

    const taskLinks = await json(app, `/v1/project-management/workbench-links?taskRef=${encodeURIComponent(tasks.tasks[0].taskRef)}`);
    expect(taskLinks.links[0].sessionId).toBe("ses_project_test");

    const rejected = await app.fetch(new Request("http://service/v1/project-management/mdtodo/tasks", { method: "POST" }));
    expect(rejected.status).toBe(405);

    await app.close();
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

async function json(app, path) {
  const response = await app.fetch(new Request(`http://service${path}`, { headers: { "x-hwlab-actor-id": "usr_test" } }));
  expect(response.status).toBe(200);
  return response.json();
}