// SPDX-License-Identifier: AGPL-3.0-or-later

/**
 * notifications.handleClick is the one piece of the notifications service
 * that actually consumes the LayoutManager contract — focus the source
 * webview when its notification is clicked. The rest of the module is
 * DOM-bound and not unit-testable without jsdom; verify it through e2e.
 */

import { test } from "node:test";
import { strict as assert } from "node:assert";

// notifications.js touches `document` and `toastManager` at module load via
// the helpers that mutate the DOM, but `handleClick` itself does not. To
// keep this unit test environment-free, stub the bits the module reaches
// for at import time.
globalThis.document = {
  getElementById: () => null,
};

const { handleClick } = await import(
  "../../ui/system/services/notifications.js"
);

import { LayoutManager } from "../../ui/system/core/layout_manager.js";

class MockLayoutManager extends LayoutManager {
  constructor() {
    super();
    this.calls = { setActiveWebView: [] };
  }
  addWebView(view) {
    this._views.set(view.id, view);
    this._activeId = view.id;
  }
  setActiveWebView(id) {
    this.calls.setActiveWebView.push(id);
    this._activeId = id;
  }
  removeWebView(id) {
    this._views.delete(id);
  }
}

test("notifications.handleClick — webview notification focuses source", () => {
  const lm = new MockLayoutManager();
  lm.addWebView({ id: "wv-1", webView: { title: "first" } });
  lm.addWebView({ id: "wv-2", webView: { title: "second" } });

  const panel = { open: true };
  handleClick(
    { id: "n1", webviewId: "wv-2" },
    { layoutManager: lm, panel, pairingHandler: { hasPendingRequests: false } },
  );

  assert.deepEqual(lm.calls.setActiveWebView, ["wv-2"]);
  assert.equal(panel.open, false, "panel closes after dispatch");
});

test("notifications.handleClick — pairing-requests tag opens dialog without touching layout", () => {
  const lm = new MockLayoutManager();
  lm.addWebView({ id: "wv-1", webView: {} });

  let dialogShown = false;
  const panel = { open: true };

  handleClick(
    { id: "n1", tag: "pairing-requests" },
    {
      layoutManager: lm,
      panel,
      pairingHandler: {
        hasPendingRequests: true,
        showPairingDialog: () => {
          dialogShown = true;
        },
      },
    },
  );

  assert.equal(dialogShown, true);
  assert.equal(panel.open, false);
  assert.deepEqual(lm.calls.setActiveWebView, [], "no layout side-effect");
});

test("notifications.handleClick — pairing-requests with no pending requests is a no-op past closing the panel", () => {
  const lm = new MockLayoutManager();
  let dialogShown = false;
  const panel = { open: true };

  handleClick(
    { id: "n1", tag: "pairing-requests" },
    {
      layoutManager: lm,
      panel,
      pairingHandler: {
        hasPendingRequests: false,
        showPairingDialog: () => {
          dialogShown = true;
        },
      },
    },
  );

  assert.equal(dialogShown, false);
  assert.equal(panel.open, false);
});

test("notifications.handleClick — webviewId with no matching webview just dismisses", () => {
  const lm = new MockLayoutManager();
  lm.addWebView({ id: "wv-1", webView: {} });

  const panel = { open: true };
  handleClick(
    { id: "n1", webviewId: "wv-missing" },
    { layoutManager: lm, panel, pairingHandler: { hasPendingRequests: false } },
  );

  assert.deepEqual(lm.calls.setActiveWebView, [], "no layout change for unknown id");
  assert.equal(panel.open, false);
});