const { test } = require('node:test');
const assert = require('node:assert');
const fs = require('node:fs');
const path = require('node:path');

const html = fs.readFileSync(path.join(__dirname, '..', 'index.html'), 'utf8');

function extractBlock(startMarker, endMarker) {
	const start = html.indexOf(startMarker);
	const end = html.indexOf(endMarker, start);
	if (start < 0 || end < 0) throw new Error('block not found: ' + startMarker);
	return html.slice(start, end);
}

function extractFunc(src, name, asyncFn) {
	const re = new RegExp('function\\s+' + name + '\\s*\\([^)]*\\)\\s*\\{');
	const m = re.exec(src);
	if (!m) throw new Error('function ' + name + ' not found');
	let i = m.index + m[0].length - 1;
	let depth = 0;
	for (; i < src.length; i++) {
		if (src[i] === '{') depth++;
		else if (src[i] === '}') {
			depth--;
			if (depth === 0) break;
		}
	}
	return (asyncFn ? 'async ' : '') + src.slice(m.index, i + 1);
}

eval(extractBlock('const CMD_NAMES = {', 'function cmdQualifierShort').replace(/^const /gm, 'var '));
eval(extractBlock('const TEST_ACTION_KINDS = [', 'let _testScripts').replace(/^const /gm, 'var '));
eval(extractFunc(html, 'testTemplate'));
eval(extractFunc(html, 'testScriptProblem'));
eval(extractFunc(html, 'testCheckSummary'));
eval(extractFunc(html, 'testStepSummary'));
eval(extractFunc(html, 'testCommandOptions'));
globalThis.t = s => s;

test('the templates contain usable steps', () => {
	const menu = testTemplate('menu');
	assert.strictEqual(menu.steps.length, 3);
	assert.strictEqual(menu.steps[0].kind, 'menu-select');
	assert.deepStrictEqual(menu.steps[0].check.sw, { mode: 'mask', value: '91??' });
	assert.strictEqual(menu.steps[1].command, 'SELECT ITEM');
	assert.strictEqual(menu.steps[1].checks[0].kind, 'item');
	assert.strictEqual(menu.steps[2].command, 'DISPLAY TEXT');
	const scp80 = testTemplate('scp80');
	assert.strictEqual(scp80.steps[0].kind, 'scp80');
	assert.strictEqual(scp80.steps[0].check.por, 'none');
	assert.ok(scp80.steps[0].params.tar);
	assert.strictEqual(testTemplate('empty').steps.length, 0);
});

test('testScriptProblem accepts good scripts and names bad ones', () => {
	assert.strictEqual(testScriptProblem(testTemplate('menu')), '');
	assert.strictEqual(testScriptProblem(testTemplate('scp80')), '');
	assert.match(testScriptProblem(null), /object/);
	assert.match(testScriptProblem({ steps: [] }), /no steps/);
	assert.match(testScriptProblem({ steps: [{ type: 'nope' }] }), /action or an expectation/);
	assert.match(testScriptProblem({ steps: [{ type: 'action', kind: 'nope' }] }), /unknown action kind/);
	assert.match(testScriptProblem({ steps: [{ type: 'action', kind: 'apdu', params: {} }] }), /APDU is empty/);
	assert.match(testScriptProblem({
		steps: [{ type: 'action', kind: 'scp80', params: { apdu: '' } }] }), /SCP80/);
	assert.match(testScriptProblem({
		steps: [{ type: 'action', kind: 'menu-select', params: { item_id: 0 } }] }), /item id/);
	assert.match(testScriptProblem({
		steps: [{ type: 'action', kind: 'file-read', params: {} }] }), /file path/);
	assert.match(testScriptProblem({ steps: [{ type: 'expect' }] }), /command is required/);
});

test('testStepSummary renders actions', () => {
	assert.strictEqual(
		testStepSummary({ type: 'action', kind: 'menu-select', params: { item_id: 3 },
			check: { sw: { mode: 'mask', value: '91??' } } }),
		'ENVELOPE(Menu Selection) item=3 · SW ~91??');
	assert.strictEqual(
		testStepSummary({ type: 'action', kind: 'apdu', params: { apdu: '00A4' } }),
		'APDU 00A4');
	assert.strictEqual(
		testStepSummary({ type: 'action', kind: 'scp80', params: { apdu: '80E2', tar: 'B00000' },
			check: { sw: { mode: 'mask', value: '91??' }, por: 'none' } }),
		'SCP80 80E2 TAR=B00000 · SW ~91??, PoR none');
	assert.strictEqual(
		testStepSummary({ type: 'action', kind: 'status', params: { attempts: 5 } }),
		'STATUS x5 (poll)');
	assert.strictEqual(
		testStepSummary({ type: 'action', kind: 'file-read', params: { path: 'MF/2FE2' } }),
		'READ MF/2FE2');
	assert.ok(testStepSummary({ type: 'action', kind: 'status', params: {},
		check: { sw: { mode: 'exact', value: '9000' } }, on_fail: 'warning' }).includes('⚠'));
});

test('testStepSummary renders expectations with checks and the response', () => {
	assert.strictEqual(
		testStepSummary({ type: 'expect', command: 'SELECT ITEM',
			checks: [{ kind: 'item', id: 1, text: 'test', mode: 'contains' }],
			respond: { result: 'ok', item_id: 1 } }),
		'EXPECT SELECT ITEM · item #1 ~"test" · TR item=1');
	assert.strictEqual(
		testStepSummary({ type: 'expect', command: 'DISPLAY TEXT',
			checks: [{ kind: 'text', mode: 'contains', value: 'hello' }], respond: { result: 'ok' } }),
		'EXPECT DISPLAY TEXT · text ~"hello" · TR ok');
	assert.ok(testStepSummary({ type: 'expect', command: 'DISPLAY TEXT',
		checks: [{ kind: 'text', value: 'x' }], respond: { result: 'cancel' } }).includes('TR cancel'));
	assert.ok(testStepSummary({ type: 'expect', command: 'GET INPUT', respond: { result: 'ok', text: 'hi' } })
		.includes('text="hi"'));
	assert.strictEqual(testCheckSummary({ kind: 'raw', mode: 'mask', value: 'AA??' }), 'raw ~AA??');
});

test('testCommandOptions covers the proactive names and keeps custom values', () => {
	const opts = testCommandOptions('DISPLAY TEXT');
	assert.ok(opts.some(o => o.v === 'ANY'));
	assert.ok(opts.some(o => o.v === 'DISPLAY TEXT'));
	assert.ok(opts.some(o => o.v === 'SELECT ITEM'));
	const custom = testCommandOptions('0x74');
	assert.ok(custom.some(o => o.v === '0x74'));
});

test('the Simulator hosts the Test script pill and its wiring', () => {
	assert.match(html, /data-phone-sub="test"[^>]*data-l10n="Test script"/);
	assert.match(html, /id="phone-sub-test"/);
	assert.match(html, /\['phone', 'tr', 'esim', 'test'\]/);
	assert.match(html, /else if \(name === 'test'\) \{\s*testInit\(\);/);
	assert.match(html, /test: 'test-script'/);
	assert.match(html, /testRunActive\(\) && el\.closest && !el\.closest\('#phone-sub-test'\)/);
	assert.match(html, /\/api\/test\/run/);
	assert.match(html, /\/api\/test\/status/);
	assert.match(html, /id="test-step-modal"/);
});