import { renderApplicationHtml } from './testSupport/applicationHtml.mjs';
import { readStylesheet } from './testSupport/readStylesheet.mjs';
import { _selectContextMode } from './ui/contextTransactions.js';
import { _initGlobalContextPanel } from './ui/contextBindings.js';
import { clearSelectedLayers } from './ui/contextActions.js';
import { readFileSync as readRadioSource } from 'node:fs';
const radioBindings = readRadioSource(new URL('./ui/radioBindings.js', import.meta.url), 'utf8');
const contextView = readRadioSource(new URL('./ui/views/ContextView.vue', import.meta.url), 'utf8');
import { readFileSync } from 'node:fs';
import { test } from 'node:test';
import assert from 'node:assert/strict';

const html = await renderApplicationHtml(readFileSync(new URL('../index.html', import.meta.url), 'utf8'));
const css = readStylesheet(new URL('../style.css', import.meta.url));

test('Contacts and Space Missions both participate in the ordinary Tab sequence', () => {
  for (const id of ['global-context-flights-btn', 'global-context-missions-btn']) {
    const button = html.match(new RegExp(`<button id="${id}"[\\s\\S]*?</button>`));
    assert.ok(button, `${id} is missing`);
    assert.match(button[0], /role="tab"/);
    assert.match(button[0], /tabindex="0"/);
  }

  // The view keeps both tabs' tabindex static and never disables them; the
  // transition itself is covered over happy-dom in ui/contextPanel.test.mjs.
  for (const id of ['global-context-flights-btn', 'global-context-missions-btn']) {
    const tag = contextView.match(new RegExp(`<button id="${id}"[^>]*>`))?.[0];
    assert.ok(tag, `${id} is missing from the view`);
    assert.doesNotMatch(tag, /:tabindex|:disabled|\sdisabled/);
  }
});

test('Context activation and Clear All never native-disable tabs and guard repeated clicks', () => {
  const init = _initGlobalContextPanel.toString();
  const select = _selectContextMode.toString();
  const clear = clearSelectedLayers.toString();
  assert.equal((init.match(/if \(\s*this\.destroyed\s*\|\|\s*this\._contextModeChanging\s*\|\|\s*this\._clearSelectedLayersPromise\s*\)\s*return;/g) || []).length, 2);
  assert.doesNotMatch(select, /_globalContext(?:Flights|Missions)Btn\.disabled\s*=\s*true/);
  assert.doesNotMatch(clear, /_globalContext(?:Flights|Missions)Btn\.disabled\s*=\s*true/);
});

test('Context tablist retains Left, Right, Home, and End keyboard navigation', () => {
  const initSource = _initGlobalContextPanel.toString();
  assert.match(initSource, /event\.key === 'ArrowRight'/);
  assert.match(initSource, /event\.key === 'ArrowLeft'/);
  assert.match(initSource, /event\.key === 'Home'/);
  assert.match(initSource, /event\.key === 'End'/);
  assert.match(initSource, /contextTabs\[nextIndex\]\.focus\(\{ preventScroll: true \}\)/);
  assert.match(initSource, /contextTabs\[nextIndex\]\.click\(\)/);
});

test('Context tabs draw a visible keyboard-focus outline including active tabs', () => {
  const rules = [...css.matchAll(/([^{}]+)\{([^{}]*)\}/g)];
  const focusRule = rules.find(([, selector, body]) => (
    selector.trim().endsWith('.context-mode-button:focus-visible')
      && /outline:\s*2px solid var\(--text-primary\)/.test(body)
  ));
  assert.ok(focusRule, 'Context focus-visible rule must draw a two-pixel outline');
  assert.match(focusRule[2], /outline-offset:\s*-3px/);

  const activeRule = rules.find(([, selector]) => selector.trim().endsWith('.context-mode-button.active'));
  assert.ok(activeRule, 'Context active-state rule is missing');
  assert.doesNotMatch(activeRule[2], /outline:\s*none/);
});

test('Context async action buttons remain focused while busy', () => {
  const init = _initGlobalContextPanel.toString();
  const radio = radioBindings.slice(radioBindings.indexOf('const toggleRadio = async (trigger) => {'), radioBindings.indexOf('this._storeToken = this.store?.connect?.('));
  const radioPanel = readFileSync(new URL('./ui/views/panels/RadioPanel.vue', import.meta.url), 'utf8');
  const clear = clearSelectedLayers.toString();

  assert.match(init, /if \(this\._installationsSearchBusy\) return;/);
  assert.doesNotMatch(init, /\.disabled\s*=\s*true/);
  const search = contextView.match(/<button id="installations-search-btn"[^>]*>/)?.[0];
  assert.ok(search, 'nearby sites search is missing');
  assert.doesNotMatch(search, /:disabled|\sdisabled/);
  assert.match(search, /:aria-busy=/);
  assert.match(radio, /trigger\.getAttribute\('aria-busy'\) === 'true'/);
  assert.doesNotMatch(radio, /trigger\.disabled\s*=\s*true/);
  const cockpitRadio = readFileSync(new URL('./ui/views/panels/CockpitUtilityControls.vue', import.meta.url), 'utf8');
  const cockpitEnable = cockpitRadio.match(/<UiButton id="cockpit-radio-enable-btn"[^>]*>/)?.[0];
  assert.ok(cockpitEnable, 'Cockpit Radio Enable button is missing');
  assert.doesNotMatch(cockpitEnable, /disabled(?!=")|:disabled/);
  assert.match(cockpitEnable, /:aria-busy=/);
  // The Radio view never disables its Enable button; it marks it busy.
  const enable = radioPanel.match(/<UiButton id="radio-enable-btn"[^>]*>/)?.[0];
  assert.ok(enable, 'Radio Enable button is missing');
  assert.doesNotMatch(enable, /disabled(?!=")|:disabled/);
  assert.match(enable, /:aria-busy=/);
  assert.match(clear, /this\.setClearBusy\(true\)/);
  // The globe actions view marks the clear button busy, never disabled.
  const globeActions = readFileSync(new URL('./ui/views/panels/GlobeActions.vue', import.meta.url), 'utf8');
  const clearButton = globeActions.match(/<button id="clear-selected-layers"[^>]*>/)?.[0];
  assert.ok(clearButton, 'Clear selected layers button is missing');
  assert.doesNotMatch(clearButton, /disabled(?!=")|:disabled=/);
  assert.match(clearButton, /:aria-busy=/);
});

test('Context header holds only its title and collapse control', () => {
  const panel = html.match(/<div id="global-context-panel"[\s\S]*?<div class="cyber-panel-body[ "]/);
  assert.ok(panel, 'Global Context panel is missing');
  const header = panel[0].match(/<div class="ui-panel__head panel-header">([\s\S]*?)<\/div>\s*<div class="cyber-panel-body[ "]/);
  assert.ok(header, 'Global Context header is missing');
  // The kit's own ui-* classes carry no Core styles.
  const tags = [...header[1].matchAll(/<(\w+)\s+(?:type="button"\s+)?class="([^"]+)"/g)].map(([, tag, cls]) =>
    `${tag}.${cls.split(' ').filter((name) => !/^ui-/.test(name)).join(' ')}`);
  assert.deepEqual(tags, ['span.panel-title', 'span.panel-divider', 'button.panel-collapse-btn']);
});

test('Context reads as one segmented control with legible type and no halo', () => {
  const rules = [...css.matchAll(/([^{}]+)\{([^{}]*)\}/g)];
  const clean = (selector) => selector.replace(/\/\*[\s\S]*?\*\//g, '').replace(/\s+/g, ' ').trim();
  const rule = (selector) => rules.find(([, s]) => clean(s) === selector)?.[2] || '';
  const px = (body, prop) => Number(body.match(new RegExp(`${prop}:[^;]*?(\\d+(?:\\.\\d+)?)px`))?.[1] || 0);

  assert.match(rule('#global-context-panel .panel-glow'), /display:\s*none/);
  const modes = rule('.global-context-modes');
  assert.match(modes, /border:\s*1px solid/);
  assert.match(modes, /padding:\s*2px/);
  assert.ok(px(rule('.context-mode-button'), 'font') >= 10, 'mode labels must stay at least 10px');
  assert.doesNotMatch(rule('.context-mode-button.active'), /box-shadow/);
  const standby = rule('.context-mode-standby');
  assert.ok(px(standby, 'font') >= 10, 'standby guidance must stay at least 10px');
  assert.doesNotMatch(standby, /dashed/);
  assert.ok(px(rule('.global-context-actions .panel-layer-toggle'), 'font-size') >= 10);
  // The shared rail title colour (brighter than --text-secondary) keeps the
  // open Context title legible; no Context-only rule dims it again.
  assert.equal(
    rule(":root:not([data-ui-theme='cyber']) #global-context-panel:not(.collapsed) .panel-title"),
    '',
  );
});