#!/usr/bin/env node
import fs from "node:fs";
import vm from "node:vm";

class ClassList {
  constructor() { this.values = new Set(); }
  toggle(name, active) { active ? this.values.add(name) : this.values.delete(name); }
}
class Element {
  constructor(id = "") {
    this.id = id;
    this.value = "";
    this.checked = false;
    this.disabled = false;
    this.hidden = false;
    this.open = false;
    this.dataset = {};
    this.children = [];
    this.listeners = new Map();
    this.classList = new ClassList();
    this.attributes = new Map();
    this.tabIndex = 0;
    this.textContent = "";
    this.type = "";
    this.readOnly = false;
    this.elements = [];
  }
  addEventListener(name, callback) { this.listeners.set(name, callback); }
  dispatch(name) { return this.listeners.get(name)?.({ target: this, preventDefault() {} }); }
  setAttribute(name, value) { this.attributes.set(name, String(value)); }
  append(...items) { this.children.push(...items); }
  replaceChildren(...items) { this.children = [...items]; }
  showModal() { this.open = true; }
  close() { this.open = false; }
  reset() {}
}

const ids = [
  "htaccess-help-close","htaccess-help-dialog","php-help-close","php-help-dialog","web-service-cache-control","web-service-cache-rules",
  "web-service-close","web-service-default-mime","web-service-dialog","web-service-download-extensions",
  "web-service-editing","web-service-form","web-service-hardening-attacks","web-service-hardening-headers",
  "web-service-htaccess-enabled","web-service-htaccess-filename","web-service-htaccess-help","web-service-htaccess-recursive",
  "web-service-htaccess-strict","web-service-id","web-service-index","web-service-list","web-service-listing",
  "web-service-mime-types","web-service-name","web-service-new","web-service-php-concurrency",
  "web-service-php-connect-timeout","web-service-php-enabled","web-service-php-endpoint","web-service-php-extensions",
  "web-service-php-request-timeout","web-service-php-pass-authorization","web-service-php-body-limit","web-service-php-header-limit",
  "web-service-php-stderr-limit","web-service-php-custom-params","web-service-php-values","web-service-php-help",
  "web-service-precompressed","web-service-precompressed-br","web-service-precompressed-gzip",
  "web-service-preset","web-service-preset-apply","web-service-preset-summary","web-service-reset",
  "web-service-response-headers","web-service-rewrites","web-service-root","web-service-search",
  "web-service-symlink-policy","web-service-tabs","web-service-try-files"
];
const elements = new Map(ids.map(id => [id, new Element(id)]));
const pages = ["general","routing","htaccess","mime","cache","delivery","php","security"].map(name => {
  const page = new Element(); page.dataset.webServicePage = name; return page;
});

elements.get("web-service-php-endpoint").value = "unix:/run/php/php-fpm.sock";
elements.get("web-service-php-connect-timeout").value = "1000";
elements.get("web-service-php-request-timeout").value = "30000";
elements.get("web-service-php-concurrency").value = "64";
elements.get("web-service-php-pass-authorization").checked = true;
elements.get("web-service-php-body-limit").value = "0";
elements.get("web-service-php-header-limit").value = "65536";
elements.get("web-service-php-stderr-limit").value = "4096";

const document = {
  querySelectorAll(selector) {
    if (selector === "#web-service-tabs button") return elements.get("web-service-tabs").children;
    if (selector === "[data-web-service-page]") return pages;
    return [];
  }
};
let savedSection = null;
const context = {
  console,
  structuredClone,
  document,
  window: {},
  envelope: null,
  busy: false,
  $: id => {
    const value = elements.get(id);
    if (!value) throw new Error(`missing fake element ${id}`);
    return value;
  },
  t: key => key,
  el: (_tag, text = "", className = "") => {
    const node = new Element();
    node.textContent = text ?? "";
    if (className) node.classList.values.add(className);
    return node;
  },
  toast: () => {},
  saveSection: async (name, value) => { savedSection = { name, value: structuredClone(value) }; return true; },
  appConfirm: async () => true,
};
vm.createContext(context);
vm.runInContext(fs.readFileSync("src/admin/web/web-server.js", "utf8"), context, { filename: "web-server.js" });

const preset = elements.get("web-service-preset");
preset.value = "wordpress";
preset.dispatch("change");

const expectedIndex = "index.php\nindex.html\nindex.htm";
const expectedTry = "$uri\n$uri/\n/index.php?$query_string";
if (elements.get("web-service-index").value !== expectedIndex) throw new Error("WordPress preset did not populate index files");
if (elements.get("web-service-try-files").value !== expectedTry) throw new Error("WordPress preset did not populate try_files");
if (!elements.get("web-service-php-enabled").checked) throw new Error("WordPress preset did not enable PHP-FPM");
if (!elements.get("web-service-precompressed").checked) throw new Error("WordPress preset did not enable precompressed sidecars");
if (!elements.get("web-service-cache-rules").value.includes("ext:css = public, max-age=604800")) throw new Error("WordPress preset did not populate cache rules");

preset.value = "downloads";
preset.dispatch("change");
if (elements.get("web-service-index").value !== "") throw new Error("Downloads preset should clear index files");
if (!elements.get("web-service-listing").checked) throw new Error("Downloads preset should enable directory listing");
if (elements.get("web-service-php-enabled").checked) throw new Error("Downloads preset should disable PHP-FPM");
if (elements.get("web-service-cache-control").value !== "public, max-age=3600") throw new Error("Downloads preset cache policy missing");

// The save path must serialize the values materialized by preset selection, not
// the previous/custom values that were present when the dialog opened.
context.envelope = { config: { web_services: [] } };
elements.get("web-service-id").value = "web1";
elements.get("web-service-name").value = "web1";
elements.get("web-service-root").value = "/srv/web1";
elements.get("web-service-php-pass-authorization").checked = false;
elements.get("web-service-php-body-limit").value = "1048576";
elements.get("web-service-php-header-limit").value = "131072";
elements.get("web-service-php-stderr-limit").value = "8192";
elements.get("web-service-php-custom-params").value = "APP_ENV = production";
elements.get("web-service-php-values").value = "memory_limit = 256M";
preset.value = "wordpress";
preset.dispatch("change");
await elements.get("web-service-form").dispatch("submit");
if (savedSection?.name !== "web-services" || savedSection.value.length !== 1) throw new Error("WordPress preset save did not persist a Web Service");
const saved = savedSection.value[0];
if (saved.index.join("\n") !== expectedIndex) throw new Error("Saved WordPress preset lost index files");
if (saved.try_files.join("\n") !== expectedTry) throw new Error("Saved WordPress preset lost try_files");
if (!saved.php.enabled) throw new Error("Saved WordPress preset lost PHP-FPM enablement");
if (!saved.precompressed.enabled) throw new Error("Saved WordPress preset lost precompressed enablement");
if (saved.php.pass_authorization !== false) throw new Error("Saved WordPress preset lost Authorization forwarding choice");
if (saved.php.max_request_body_bytes !== 1048576 || saved.php.max_response_header_bytes !== 131072 || saved.php.stderr_log_bytes !== 8192) throw new Error("Saved WordPress preset lost advanced FastCGI limits");
if (saved.php.custom_params.APP_ENV !== "production") throw new Error("Saved WordPress preset lost custom FastCGI parameters");
if (saved.php.php_values.memory_limit !== "256M") throw new Error("Saved WordPress preset lost PHP_VALUE settings");
if (!saved.cache_rules.some(rule => rule.matcher === "ext:css" && rule.cache_control.includes("604800"))) throw new Error("Saved WordPress preset lost cache rules");

console.log("PASS: Web Service preset selection materializes and persists CMS/download settings.");