#!/usr/bin/env python3
"""Offline Chromium test: sendfile toggle serializes in real admin bundle.

It uses simulated config and a mocked saveSection; never claims native
sendfile execution, Rust compilation or live server acceptance.
"""
from pathlib import Path
import json
import re
from playwright.sync_api import sync_playwright
from panel_html import render_admin_index

ROOT = Path(__file__).resolve().parents[2]
ROUTER = (ROOT / "src/admin/router.rs").read_text()
start = re.search(r'fn admin_app_javascript\([^)]*\)[^{]*\{', ROUTER)
assert start
array = ROUTER[start.end():]
array = array[:re.search(r'\]\s*\.join\("\\n"\)', array).start()]
chunks = []
for line in array.splitlines():
    line = line.strip()
    match = re.search(r'include_str!\("([^"]+)"\)', line)
    if match:
        chunks.append((ROOT / "src/admin" / match.group(1)).read_text())
    elif line == 'admin_vhosts_javascript(),':
        chunks.append('(() => {\n' + '\n'.join(
            (ROOT / 'src/admin/web/vhosts' / (f + '.js')).read_text()
            for f in ('core', 'protocol', 'health', 'rates', 'editor', 'render')) + '\n})();')
    elif line.startswith('"') and line.endswith('",'):
        chunks.append(json.loads(line[:-1]))

with sync_playwright() as p:
    browser = p.chromium.launch(headless=True, executable_path='/usr/bin/chromium', args=['--no-sandbox'])
    for width in (375, 1440):
        page = browser.new_page(viewport={'width': width, 'height': 950})
        page.set_default_timeout(4500)
        errors = []
        page.on('pageerror', lambda err: errors.append(str(err)))
        page.set_content(render_admin_index(ROOT))
        page.add_style_tag(content=(ROOT / 'src/admin/web/style.css').read_text())
        page.add_script_tag(content='\n'.join(chunks))
        page.evaluate('''() => {
            envelope = {revision: 10, config: {web_services: [{
                id: 'site-A', name: 'Static Site', document_root: '/srv/static',
                index: ['index.html'], php: {enabled: false}
            }], vhosts: [{id: 'vhost-A', keepalive: {max_connections: 8}}], php_fpm_profiles: []}};
            currentPanel = 'web-server';
            document.documentElement.classList.remove('app-loading', 'app-startup-failed');
            document.getElementById('login').hidden = true;
            document.getElementById('workspace').hidden = false;
            document.getElementById('panel-web-server').hidden = false;
            window.__saved = [];
            saveSection = async (section, value) => {
                window.__saved.push({section, value: structuredClone(value)});
                if (section === 'web-services') envelope.config.web_services = structuredClone(value);
                return true;
            };
            window.rustProxyWebServer.render();
        }''')
        page.evaluate("document.querySelector('#web-service-list .entity-actions button').click()")
        assert page.locator('#web-service-sendfile').input_value() == 'off'
        page.evaluate("document.getElementById('web-service-sendfile').value = 'auto'")
        page.evaluate('''() => { const form = document.getElementById('web-service-form'); if (!form.checkValidity()) throw new Error('invalid fields: ' + [...form.elements].filter(e=>!e.checkValidity()).map(e=>e.id).join(', ')); form.requestSubmit(); }''')
        page.wait_for_function('window.__saved.length === 1')
        result = page.evaluate('''() => ({
            saved: window.__saved[0],
            cacheStillUnrelated: envelope.config.vhosts[0].keepalive.max_connections === 8,
            closed: !document.getElementById('web-service-dialog').open
        })''')
        assert result['saved']['section'] == 'web-services', result
        assert result['saved']['value'][0]['sendfile'] == 'auto', result
        assert result['saved']['value'][0]['document_root'] == '/srv/static', result
        assert result['cacheStillUnrelated'] and result['closed'], result
        page.evaluate("document.querySelector('#web-service-list .entity-actions button').click()")
        assert page.locator('#web-service-sendfile').input_value() == 'auto'
        page.evaluate("document.getElementById('web-service-sendfile').value = 'off'")
        page.evaluate('''() => { const form = document.getElementById('web-service-form'); if (!form.checkValidity()) throw new Error('invalid fields: ' + [...form.elements].filter(e=>!e.checkValidity()).map(e=>e.id).join(', ')); form.requestSubmit(); }''')
        page.wait_for_function('window.__saved.length === 2')
        assert page.evaluate('envelope.config.web_services[0].sendfile') == 'off'
        assert not errors, errors
        print(f'PASS simulated panel sendfile off -> auto -> off config save at {width}px')
    browser.close()