// use-shortcuts depends on shortcut.js, which calls document.addEventListener at module load time.
// Here we inject minimal document / window stubs first, then dynamically import the tested module.
//
// pulse-beacon.js pulls `@/utils/...` (Vite alias) and the `p` shortcut gates
// on its build-time env flag — both are awkward in the Node runner. A load
// hook stubs that module with a mutable `hasPulseBackend` so we can cover
// both branches (the shortcut's other gate, configs.cloudFlare, is plain
// test input).

import assert from 'node:assert/strict';
import { describe, it, after } from 'node:test';
import { registerHooks } from 'node:module';
import { ref, computed, reactive, nextTick } from 'vue';

const documentHandlers = {};
// Per-test override (see "o" shortcut cases below). Default: no card is
// currently highlighted via J/K, so any lookup returns null.
let querySelectorImpl = () => null;
globalThis.document = {
  addEventListener(type, handler) { documentHandlers[type] = handler; },
  getElementById() { return null; },
  querySelector(sel) { return querySelectorImpl(sel); },
};
globalThis.window = {
  scrollTo() {},
  scrollY: 0,
  pageYOffset: 0,
};

registerHooks({
  load(url, context, nextLoad) {
    if (url.includes('/utils/features/pulse-beacon.js')) {
      return {
        format: 'module',
        shortCircuit: true,
        source: `
          export const PULSE_BEACON_URL = 'https://pulse.test';
          export const sendVisitBeacon = () => {};
          export let hasPulseBackend = false;
          globalThis.__setPulseBackendForTest = (v) => { hasPulseBackend = Boolean(v); };
        `,
      };
    }
    return nextLoad(url, context);
  },
});

const { useShortcuts } = await import('../frontend/composables/use-shortcuts.js');
const { onAppEvent } = await import('../frontend/utils/app-events.js');
const { registerAppCommand } = await import('../frontend/utils/app-commands.js');

const t = (k) => `<${k}>`;

// The test-running shortcuts dispatch on the command bus rather than calling
// through refs. Register the five owner commands once, into a shared record
// that loadAndGetKeyMap resets per test.
const commandCalls = { ipRefresh: [], connectivity: [], webrtc: [], dnsleak: [], speedTest: 0 };
registerAppCommand('ipinfo:refresh', (payload) => { commandCalls.ipRefresh.push(payload.index); });
registerAppCommand('connectivity:run', (payload) => { commandCalls.connectivity.push(payload.trigger); });
registerAppCommand('webrtc:run', (payload) => { commandCalls.webrtc.push(payload.isRefresh); });
registerAppCommand('dnsleak:run', (payload) => { commandCalls.dnsleak.push(payload.isRefresh); });
registerAppCommand('speedtest:toggle', () => { commandCalls.speedTest += 1; });

const resetCommandCalls = () => {
  commandCalls.ipRefresh = [];
  commandCalls.connectivity = [];
  commandCalls.webrtc = [];
  commandCalls.dnsleak = [];
  commandCalls.speedTest = 0;
};

function makeStoreStub() {
  const state = reactive({
    refreshRequested: false,
    toggledSheets: [],
  });
  return {
    state,
    setRefreshEveryThing(v) { state.refreshRequested = v; },
    toggleSheet(name) { state.toggledSheets.push(name); },
  };
}

function makeRefs() {
  // UI-chrome calls live here; the test-section calls land in commandCalls
  // (merged into the returned record so assertions read one object).
  const calls = {
    queryOpen: 0,
    helpOpen: 0,
    shareOpen: 0,
    advancedNavigate: [],
    advancedFullScreen: 0,
    mask: 0,
    get speedTest() { return commandCalls.speedTest; },
    get ipRefresh() { return commandCalls.ipRefresh; },
    get connectivity() { return commandCalls.connectivity; },
    get webrtc() { return commandCalls.webrtc; },
    get dnsleak() { return commandCalls.dnsleak; },
  };

  const advancedToolsRef = ref({
    openTool(slug) { calls.advancedNavigate.push(slug); },
    fullScreen() { calls.advancedFullScreen += 1; },
  });

  return {
    refs: {
      queryIPRef:        ref({ openModal: () => { calls.queryOpen += 1; } }),
      helpModalRef:      ref({ openModal: () => { calls.helpOpen += 1; }, keyMap: null }),
      shareReportRef:    ref({ openDialog: () => { calls.shareOpen += 1; } }),
      advancedToolsRef,
      isInfosLoaded:     ref(true),
      toggleInfoMask:    () => { calls.mask += 1; },
    },
    calls,
  };
}

after(() => {
  globalThis.__setPulseBackendForTest?.(false);
});

function loadAndGetKeyMap({
  originalSite = false,
  ipHistoryEnabled = true,
  pulseBackend = false,
  cloudFlare = false,
} = {}) {
  globalThis.__setPulseBackendForTest(pulseBackend);
  resetCommandCalls();
  const store = makeStoreStub();
  const { refs, calls } = makeRefs();
  const configs = computed(() => ({ originalSite, map: true, cloudFlare }));
  const userPreferences = computed(() => ({ ipCardsToShow: 2, ipHistoryEnabled }));

  const { loadShortcuts } = useShortcuts({
    refs, store, t, configs, userPreferences,
  });
  loadShortcuts();

  // helpModalRef.keyMap receives the global keyMap after loadShortcuts
  const keyMap = refs.helpModalRef.value.keyMap || [];
  return { keyMap, store, refs, calls };
}

describe('useShortcuts()', () => {
  it('loadShortcuts() registers a keymap of 26+ entries on a non-original site', () => {
    const { keyMap } = loadAndGetKeyMap({ originalSite: false, pulseBackend: false, cloudFlare: false });
    // 26 base entries (no invisibility / enhanced-DNS / pulse).
    const distinctKeys = new Set(keyMap.map((e) => e.keys));
    assert.ok(distinctKeys.size >= 26, `expected ≥26 distinct shortcut keys, got ${distinctKeys.size}`);
    assert.ok(distinctKeys.has('R'));
    assert.ok(distinctKeys.has('?'));
    assert.ok(distinctKeys.has('g'));
    assert.ok(distinctKeys.has('o'));
    assert.ok(distinctKeys.has('H'));
    assert.ok(distinctKeys.has('x'), 'Ad & Tracker Blocking Test is a public tool');
    assert.equal(distinctKeys.has('p'), false, 'pulse shortcut stays off without a pulse backend or cloudFlare key');
    assert.equal(distinctKeys.has('P'), false, 'persona shortcut stays off a self-hosted instance');
    assert.equal(distinctKeys.has('B'), false, 'blocklist shortcut stays off a self-hosted instance');
    assert.equal(distinctKeys.has('A'), false, 'ASN Profile shortcut stays off without a cloudFlare key');
    // Overlays take no keys at all (utils/shortcut.js), so there is no
    // drawer-only entry left to register.
    assert.equal(distinctKeys.has('f'), false, 'no shortcut acts on an open overlay');
  });

  it('originalSite=true adds invisibility ("i"), enhanced DNS-leak ("D"), blocklist ("B") and persona ("P") shortcuts', () => {
    const { keyMap, calls } = loadAndGetKeyMap({ originalSite: true });
    const hasInvisibility = keyMap.some((e) => e.keys === 'i');
    assert.ok(hasInvisibility, 'key "i" should be present on originalSite');
    const D = keyMap.findLast((e) => e.keys === 'D');
    assert.ok(D, 'key "D" should be present on originalSite');
    D.action();
    assert.deepEqual(calls.advancedNavigate, ['enhanceddnsleaktest']);
    // Uppercase B is its own key — lowercase b is Browser Info's.
    const B = keyMap.findLast((e) => e.keys === 'B');
    assert.ok(B, 'key "B" should be present on originalSite');
    B.action();
    // Uppercase P is its own key — lowercase p is Earth Online's.
    const P = keyMap.findLast((e) => e.keys === 'P');
    assert.ok(P, 'key "P" should be present on originalSite');
    P.action();
    assert.deepEqual(calls.advancedNavigate, ['enhanceddnsleaktest', 'blocklist', 'personacheck']);
  });

  it('configs.cloudFlare adds the ASN Profile shortcut ("A")', () => {
    const { keyMap, calls } = loadAndGetKeyMap({ cloudFlare: true });
    // Uppercase A is its own key — lowercase a is the IP calculator's.
    const A = keyMap.findLast((e) => e.keys === 'A');
    assert.ok(A, 'key "A" should be present when configs.cloudFlare is set');
    A.action();
    assert.deepEqual(calls.advancedNavigate, ['asn']);
  });

  it('"R" action triggers store.setRefreshEveryThing(true)', () => {
    const { keyMap, store } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.keys === 'R');
    assert.ok(entry, '"R" key should be registered');
    entry.action();
    assert.equal(store.state.refreshRequested, true);
  });

  it('advanced-tool shortcuts open via advancedToolsRef.openTool(slug)', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    const l = keyMap.findLast((e) => e.keys === 'l'); l.action();
    const M = keyMap.findLast((e) => e.keys === 'M'); M.action();
    const t_ = keyMap.findLast((e) => e.keys === 't'); t_.action();
    assert.deepEqual(calls.advancedNavigate, ['pingtest', 'macchecker', 'mtrtest']);
  });

  it('numeric regex "[1-6]" passes through number argument to refreshCard', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.type === 'regex');
    assert.ok(entry);
    entry.action(2); // user typed "2"
    assert.deepEqual(calls.ipRefresh, [1], 'action receives num; refreshCard(card, num-1)');
  });

  it('numeric shortcut respects userPreferences.ipCardsToShow upper bound', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.type === 'regex');
    entry.action(6); // beyond ipCardsToShow (2)
    assert.deepEqual(calls.ipRefresh, [], 'num > ipCardsToShow → no-op');
  });

  it('"c"/"w"/"d"/"s" dispatch the section commands with their payloads', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    keyMap.findLast((e) => e.keys === 'c').action();
    keyMap.findLast((e) => e.keys === 'w').action();
    keyMap.findLast((e) => e.keys === 'd').action();
    keyMap.findLast((e) => e.keys === 's').action();
    assert.deepEqual(calls.connectivity, ['manual']);
    assert.deepEqual(calls.webrtc, [false]);
    assert.deepEqual(calls.dnsleak, [true]);
    assert.equal(calls.speedTest, 1, 'the s key stays a run/pause toggle');
  });

  it('"?" opens help modal and emits the shortcut:help-opened app event', () => {
    // The achievement itself (CleverTrickery) is the engine's concern —
    // use-shortcuts only emits the domain event. See achievement-rules tests.
    let emitted = 0;
    const off = onAppEvent('shortcut:help-opened', () => { emitted += 1; });
    const { keyMap, calls } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.keys === '?');
    entry.action();
    off();
    assert.equal(calls.helpOpen, 1);
    assert.equal(emitted, 1);
  });

  it('"e" opens the share report dialog', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.keys === 'e');
    assert.ok(entry, '"e" key should be registered');
    entry.action();
    assert.equal(calls.shareOpen, 1);
  });

  it('"h" toggles info mask only when infos loaded', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    const entry = keyMap.findLast((e) => e.keys === 'h');
    entry.action();
    assert.equal(calls.mask, 1);
  });

  it('"H" opens the IP history sheet when ipHistoryEnabled', () => {
    const { keyMap, store } = loadAndGetKeyMap({ ipHistoryEnabled: true });
    const entry = keyMap.findLast((e) => e.keys === 'H');
    assert.ok(entry, '"H" key should be registered');
    entry.action();
    assert.deepEqual(store.state.toggledSheets, ['ipHistory']);
  });

  it('"H" is a no-op when ipHistoryEnabled is false', () => {
    const { keyMap, store } = loadAndGetKeyMap({ ipHistoryEnabled: false });
    const entry = keyMap.findLast((e) => e.keys === 'H');
    entry.action();
    assert.deepEqual(store.state.toggledSheets, []);
  });

  it('the pulse backend flag adds the pulse shortcut (key "p")', () => {
    const { keyMap, store } = loadAndGetKeyMap({ pulseBackend: true });
    const entry = keyMap.findLast((e) => e.keys === 'p');
    assert.ok(entry, '"p" key should be present when hasPulseBackend');
    entry.action();
    assert.deepEqual(store.state.toggledSheets, ['pulse']);
  });

  it('configs.cloudFlare alone adds the pulse shortcut (outage-only fork)', () => {
    const { keyMap, store } = loadAndGetKeyMap({ pulseBackend: false, cloudFlare: true });
    const entry = keyMap.findLast((e) => e.keys === 'p');
    assert.ok(entry, '"p" key should be present when configs.cloudFlare is set');
    entry.action();
    assert.deepEqual(store.state.toggledSheets, ['pulse']);
  });

  it('configs landing after registration re-registers the map (late "p")', async () => {
    globalThis.__setPulseBackendForTest(false);
    const store = makeStoreStub();
    const { refs } = makeRefs();
    // Reactive configs source so the watcher inside useShortcuts can fire.
    const configsData = ref({ originalSite: false, map: true });
    const configs = computed(() => configsData.value);
    const userPreferences = computed(() => ({ ipCardsToShow: 2, ipHistoryEnabled: true }));

    const { loadShortcuts } = useShortcuts({ refs, store, t, configs, userPreferences });
    loadShortcuts();
    const keyMap = refs.helpModalRef.value.keyMap;
    assert.equal(keyMap.some((e) => e.keys === 'p'), false, 'no "p" before configs resolve');

    configsData.value = { originalSite: false, map: true, cloudFlare: true };
    await nextTick(); // flush the configs watcher
    assert.equal(keyMap.some((e) => e.keys === 'p'), true, '"p" appears once cloudFlare lands');
  });

  it('"o" opens the highlighted advanced tool by its data-adv-slug', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    // Stub the highlighted card to be an advanced tool card pointing at mtrtest.
    querySelectorImpl = (sel) => {
      if (sel === '.keyboard-shortcut-card[data-keyboard-hover="true"]') {
        return {
          getAttribute: (name) => name === 'data-adv-slug' ? 'mtrtest' : null,
          querySelector: () => null,
        };
      }
      return null;
    };
    const entry = keyMap.findLast((e) => e.keys === 'o');
    entry.action();
    querySelectorImpl = () => null;
    assert.deepEqual(calls.advancedNavigate, ['mtrtest']);
  });

  it('"o" clicks the highlighted Connectivity card\'s site link (a[data-card-open])', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    let clicked = 0;
    querySelectorImpl = (sel) => {
      if (sel === '.keyboard-shortcut-card[data-keyboard-hover="true"]') {
        return {
          getAttribute: () => null,
          querySelector: (inner) => (inner === 'a[data-card-open][href]' ? { click: () => { clicked += 1; } } : null),
        };
      }
      return null;
    };
    const entry = keyMap.findLast((e) => e.keys === 'o');
    entry.action();
    querySelectorImpl = () => null;
    assert.equal(clicked, 1);
    assert.deepEqual(calls.advancedNavigate, []);
  });

  it('"o" is a no-op when the highlighted card has no slug and no site link (e.g. IP card)', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    querySelectorImpl = () => ({ getAttribute: () => null, querySelector: () => null });
    const entry = keyMap.findLast((e) => e.keys === 'o');
    entry.action();
    querySelectorImpl = () => null;
    assert.deepEqual(calls.advancedNavigate, []);
  });

  it('"o" is a no-op when nothing is highlighted', () => {
    const { keyMap, calls } = loadAndGetKeyMap();
    // querySelectorImpl default returns null (nothing highlighted).
    const entry = keyMap.findLast((e) => e.keys === 'o');
    entry.action();
    assert.deepEqual(calls.advancedNavigate, []);
  });
});