// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
//
// SPDX-License-Identifier: GPL-2.0-or-later

// Pass predictions used to be a third view inside the weather-satellite
// decoder, under Digital modes — a planning tool filed with the decoders it has
// nothing to do with. It is its own page now, so what this guards is that the
// page exists at its own address, renders passes, and that the decoder card no
// longer offers the view it gave up.

import assert from "node:assert/strict";
import { chromium } from "playwright-core";
import { startBrowser, startWebFixture } from "./web-fixture.mjs";

/* global document, window, getComputedStyle */

const HOUR = 3_600_000;
const now = Date.now();
const satPasses = {
  satellite_count: 2,
  passes: [
    // In progress right now, so the page has a countdown to run.
    {
      satellite: "NOAA 19", category: "weather",
      aos_ms: now - 4 * 60_000, los_ms: now + 6 * 60_000,
      max_elevation_deg: 62.4, duration_s: 600,
      azimuth_aos_deg: 10, azimuth_los_deg: 190,
    },
    {
      satellite: "ISS", category: "amateur",
      aos_ms: now + 2 * HOUR, los_ms: now + 2 * HOUR + 480_000,
      max_elevation_deg: 18.2, duration_s: 480,
      azimuth_aos_deg: 200, azimuth_los_deg: 20,
    },
  ],
};

const fixture = await startWebFixture({ satPasses });
const { browser, page, runtimeErrors } = await startBrowser(chromium);

try {
  await page.setViewportSize({ width: 1500, height: 950 });

  // The page is reachable at its own address, not through a decoder sub-view.
  // #content is the radio panel on the main tab, so the readiness signal for a
  // deep link is the destination panel itself.
  await page.goto(`${fixture.origin}/satellites`, { waitUntil: "domcontentloaded" });
  await page.locator("#tab-satellites").waitFor({ state: "visible" });

  await page.waitForFunction(
    () => (document.getElementById("sat-pred-list")?.childElementCount ?? 0) > 0,
    null,
    { timeout: 5000 },
  );

  const rendered = await page.evaluate(() => ({
    current: document.getElementById("sat-pred-current-list").textContent,
    upcoming: document.getElementById("sat-pred-list").textContent,
    status: document.getElementById("sat-pred-status").textContent,
    activeTab: document.querySelector(".tab-bar .tab.active")?.dataset.tab,
  }));
  assert.match(rendered.current, /NOAA 19/, `current passes read "${rendered.current}"`);
  assert.match(rendered.upcoming, /ISS/, `upcoming passes read "${rendered.upcoming}"`);
  assert.match(rendered.status, /1 active/, `status reads "${rendered.status}"`);
  assert.equal(rendered.activeTab, "satellites", "the Satellites tab is the active one");

  // A pass in progress counts down, so the seconds have to move on their own.
  const firstTick = await page.evaluate(
    () => document.querySelector(".sat-pred-col-countdown[data-los]")?.textContent);
  await page.waitForTimeout(1600);
  const secondTick = await page.evaluate(
    () => document.querySelector(".sat-pred-col-countdown[data-los]")?.textContent);
  assert.notEqual(firstTick, secondTick, `the countdown sat at ${firstTick}`);

  // Leaving stops the countdown rather than leaving a timer running behind a
  // hidden page.
  await page.evaluate(() => { window.navigateToTab("main"); });
  await page.waitForTimeout(300);
  const afterLeaving = await page.evaluate(() => ({
    visible: document.getElementById("tab-satellites").style.display,
    rows: document.getElementById("sat-pred-current-list").childElementCount,
  }));
  assert.equal(afterLeaving.visible, "none", "the page stayed on screen after navigating away");
  assert.equal(afterLeaving.rows, 0, "the countdown rows outlived the page");

  // Coming back reloads rather than showing whatever was there before.
  await page.evaluate(() => { window.navigateToTab("satellites"); });
  await page.waitForFunction(
    () => (document.getElementById("sat-pred-list")?.childElementCount ?? 0) > 0,
    null,
    { timeout: 5000 },
  );

  // The page is an occasional destination, so it lives behind Tools rather than
  // taking a slot in the operating strip — the same treatment Statistics,
  // Recorder, Settings and About get.
  const nav = await page.evaluate(() => ({
    inStrip: getComputedStyle(document.querySelector('.tab-bar-nav .tab[data-tab="satellites"]')).display,
    inTools: !!document.querySelector('#mobile-more-menu [data-navigate-tab="satellites"]'),
  }));
  assert.equal(nav.inStrip, "none", "Satellites took a slot in the operating strip");
  assert.ok(nav.inTools, "Satellites is not reachable from Tools");

  // The decoder card keeps Live and History, and no longer offers Predictions.
  await page.goto(`${fixture.origin}/digital-modes`, { waitUntil: "domcontentloaded" });
  await page.locator("#tab-digital-modes").waitFor({ state: "visible" });
  const satCard = await page.evaluate(() => ({
    predictionsButton: !!document.getElementById("sat-view-predictions"),
    predictionsView: !!document.getElementById("sat-predictions-view"),
    live: !!document.getElementById("sat-view-live"),
    history: !!document.getElementById("sat-view-history"),
  }));
  assert.equal(satCard.predictionsButton, false, "the decoder card still offers Predictions");
  assert.equal(satCard.predictionsView, false, "the old predictions view is still in the page");
  assert.ok(satCard.live && satCard.history, "the decoder card lost Live/History");

  assert.deepEqual(runtimeErrors, [], "the page threw while showing predictions");
  console.log("satellite predictions page tests passed");
} finally {
  await browser.close();
  await fixture.close();
}