const assert = require('node:assert/strict');
const { readFileSync } = require('node:fs');
const { resolve } = require('node:path');
const { test } = require('node:test');
const { runInNewContext } = require('node:vm');
const source = readFileSync(resolve(__dirname, '../../reproxy/web/minecraft/motion.js'), 'utf8');

for (const reduced of [false, true]) {
    test(`motion controls, reduced motion=${reduced}`, () => {
        const classes = new Set();
        const attributes = {};
        let click;
        let preferenceChanged;
        const button = { hidden: true, setAttribute: (key, value) => attributes[key] = value, addEventListener: (name, callback) => { assert.equal(name, 'click'); click = callback; } };
        runInNewContext(source, {
            document: { getElementById: () => button, documentElement: { classList: {
                toggle: (key, value) => value ? classes.add(key) : classes.delete(key),
                contains: key => classes.has(key),
            } } },
            window: { matchMedia: query => {
                assert.equal(query, '(prefers-reduced-motion: reduce)');
                return { matches: reduced, addEventListener: (name, callback) => { assert.equal(name, 'change'); preferenceChanged = callback; } };
            } },
        });
        assert.equal(button.hidden, false);
        assert.equal(classes.has('motion-running'), !reduced);
        assert.equal(attributes['aria-pressed'], String(reduced));
        click();
        assert.equal(classes.has('motion-running'), reduced);
        assert.equal(button.textContent, reduced ? 'Остановить механизмы' : 'Запустить механизмы');
        click();
        assert.equal(classes.has('motion-running'), !reduced);
        preferenceChanged({ matches: true });
        assert.equal(classes.has('motion-running'), false);
        assert.equal(attributes['aria-pressed'], 'true');
    });
}