import { assertEquals, assertRejects } from "@std/assert";
import { testExtension } from "@berry/api/testing.ts";
import browser from "./mod.ts";
import type { BrowserViewData, Snapshot } from "./types.ts";

Deno.test("historical snapshots can be read without reviving a browser", async () => {
  const snapshot: Snapshot = {
    tab: "t1",
    url: "https://example.com/",
    title: "Earlier page",
    text: "Historical",
    elements: [],
    truncated: false,
    frames: [],
    diagnostics: [],
  };
  const ext = testExtension(browser, {
    events: [{ type: "observed", version: 1, action: "open", snapshot, at: 100 }],
  });
  try {
    const data = await ext.request("view", {}) as BrowserViewData;
    assertEquals(data.active, false);
    assertEquals(data.tabs, [snapshot]);
    assertEquals((await ext.call("browser", { action: "tabs" }) as { tabs: unknown[] }).tabs, []);
    await assertRejects(
      () => ext.call("browser", { action: "snapshot", tab: "t1" }),
      Error,
      "No live tab",
    );
  } finally {
    await ext.dispose();
  }
});