import { crossSerializeStream, getCrossReferenceHeader } from "seroval";
import invariant from "tiny-invariant";
import { decodePath } from "../utils.js";
import { createLRUCache } from "../lru-cache.js";
import minifiedTsrBootStrapScript from "./tsrScript.js";
import { TSR_SCRIPT_BARRIER_ID, GLOBAL_TSR } from "./constants.js";
import { dehydrateSsrMatchId } from "./ssr-match-id.js";
import { defaultSerovalPlugins } from "./serializer/seroval-plugins.js";
import { makeSsrSerovalPlugin } from "./serializer/transformer.js";
const SCOPE_ID = "tsr";
const TSR_PREFIX = GLOBAL_TSR + ".router=";
const P_PREFIX = GLOBAL_TSR + ".p(()=>";
const P_SUFFIX = ")";
function dehydrateMatch(match) {
  const dehydratedMatch = {
    i: dehydrateSsrMatchId(match.id),
    u: match.updatedAt,
    s: match.status
  };
  const properties = [
    ["__beforeLoadContext", "b"],
    ["loaderData", "l"],
    ["error", "e"],
    ["ssr", "ssr"]
  ];
  for (const [key, shorthand] of properties) {
    if (match[key] !== void 0) {
      dehydratedMatch[shorthand] = match[key];
    }
  }
  if (match.globalNotFound) {
    dehydratedMatch.g = true;
  }
  return dehydratedMatch;
}
const INITIAL_SCRIPTS = [
  getCrossReferenceHeader(SCOPE_ID),
  minifiedTsrBootStrapScript
];
class ScriptBuffer {
  constructor(router) {
    this._scriptBarrierLifted = false;
    this._cleanedUp = false;
    this._pendingMicrotask = false;
    this.router = router;
    this._queue = INITIAL_SCRIPTS.slice();
  }
  enqueue(script) {
    if (this._cleanedUp) return;
    this._queue.push(script);
    if (this._scriptBarrierLifted && !this._pendingMicrotask) {
      this._pendingMicrotask = true;
      queueMicrotask(() => {
        this._pendingMicrotask = false;
        this.injectBufferedScripts();
      });
    }
  }
  liftBarrier() {
    if (this._scriptBarrierLifted || this._cleanedUp) return;
    this._scriptBarrierLifted = true;
    if (this._queue.length > 0 && !this._pendingMicrotask) {
      this._pendingMicrotask = true;
      queueMicrotask(() => {
        this._pendingMicrotask = false;
        this.injectBufferedScripts();
      });
    }
  }
  /**
   * Flushes any pending scripts synchronously.
   * Call this before emitting onSerializationFinished to ensure all scripts are injected.
   *
   * IMPORTANT: Only injects if the barrier has been lifted. Before the barrier is lifted,
   * scripts should remain in the queue so takeBufferedScripts() can retrieve them
   */
  flush() {
    if (!this._scriptBarrierLifted) return;
    if (this._cleanedUp) return;
    this._pendingMicrotask = false;
    const scriptsToInject = this.takeAll();
    if (scriptsToInject && this.router?.serverSsr) {
      this.router.serverSsr.injectScript(scriptsToInject);
    }
  }
  takeAll() {
    const bufferedScripts = this._queue;
    this._queue = [];
    if (bufferedScripts.length === 0) {
      return void 0;
    }
    if (bufferedScripts.length === 1) {
      return bufferedScripts[0] + ";document.currentScript.remove()";
    }
    return bufferedScripts.join(";") + ";document.currentScript.remove()";
  }
  injectBufferedScripts() {
    if (this._cleanedUp) return;
    if (this._queue.length === 0) return;
    const scriptsToInject = this.takeAll();
    if (scriptsToInject && this.router?.serverSsr) {
      this.router.serverSsr.injectScript(scriptsToInject);
    }
  }
  cleanup() {
    this._cleanedUp = true;
    this._queue = [];
    this.router = void 0;
  }
}
const isProd = process.env.NODE_ENV === "production";
const MANIFEST_CACHE_SIZE = 100;
const manifestCaches = /* @__PURE__ */ new WeakMap();
function getManifestCache(manifest) {
  const cache = manifestCaches.get(manifest);
  if (cache) return cache;
  const newCache = createLRUCache(MANIFEST_CACHE_SIZE);
  manifestCaches.set(manifest, newCache);
  return newCache;
}
function attachRouterServerSsrUtils({
  router,
  manifest
}) {
  router.ssr = {
    manifest
  };
  let _dehydrated = false;
  let _serializationFinished = false;
  const renderFinishedListeners = [];
  const serializationFinishedListeners = [];
  const scriptBuffer = new ScriptBuffer(router);
  let injectedHtmlBuffer = "";
  router.serverSsr = {
    injectHtml: (html) => {
      if (!html) return;
      injectedHtmlBuffer += html;
      router.emit({
        type: "onInjectedHtml"
      });
    },
    injectScript: (script) => {
      if (!script) return;
      const html = `<script${router.options.ssr?.nonce ? ` nonce='${router.options.ssr.nonce}'` : ""}>${script}<\/script>`;
      router.serverSsr.injectHtml(html);
    },
    dehydrate: async () => {
      invariant(!_dehydrated, "router is already dehydrated!");
      let matchesToDehydrate = router.state.matches;
      if (router.isShell()) {
        matchesToDehydrate = matchesToDehydrate.slice(0, 1);
      }
      const matches = matchesToDehydrate.map(dehydrateMatch);
      let manifestToDehydrate = void 0;
      if (manifest) {
        const currentRouteIdsList = matchesToDehydrate.map((m) => m.routeId);
        const manifestCacheKey = currentRouteIdsList.join("\0");
        let filteredRoutes;
        if (isProd) {
          filteredRoutes = getManifestCache(manifest).get(manifestCacheKey);
        }
        if (!filteredRoutes) {
          const currentRouteIds = new Set(currentRouteIdsList);
          const nextFilteredRoutes = {};
          for (const routeId in manifest.routes) {
            const routeManifest = manifest.routes[routeId];
            if (currentRouteIds.has(routeId)) {
              nextFilteredRoutes[routeId] = routeManifest;
            } else if (routeManifest.assets && routeManifest.assets.length > 0) {
              nextFilteredRoutes[routeId] = {
                assets: routeManifest.assets
              };
            }
          }
          if (isProd) {
            getManifestCache(manifest).set(manifestCacheKey, nextFilteredRoutes);
          }
          filteredRoutes = nextFilteredRoutes;
        }
        manifestToDehydrate = {
          routes: filteredRoutes
        };
      }
      const dehydratedRouter = {
        manifest: manifestToDehydrate,
        matches
      };
      const lastMatchId = matchesToDehydrate[matchesToDehydrate.length - 1]?.id;
      if (lastMatchId) {
        dehydratedRouter.lastMatchId = dehydrateSsrMatchId(lastMatchId);
      }
      const dehydratedData = await router.options.dehydrate?.();
      if (dehydratedData) {
        dehydratedRouter.dehydratedData = dehydratedData;
      }
      _dehydrated = true;
      const trackPlugins = { didRun: false };
      const serializationAdapters = router.options.serializationAdapters;
      const plugins = serializationAdapters ? serializationAdapters.map((t) => makeSsrSerovalPlugin(t, trackPlugins)).concat(defaultSerovalPlugins) : defaultSerovalPlugins;
      const signalSerializationComplete = () => {
        _serializationFinished = true;
        try {
          serializationFinishedListeners.forEach((l) => l());
          router.emit({ type: "onSerializationFinished" });
        } catch (err) {
          console.error("Serialization listener error:", err);
        } finally {
          serializationFinishedListeners.length = 0;
          renderFinishedListeners.length = 0;
        }
      };
      crossSerializeStream(dehydratedRouter, {
        refs: /* @__PURE__ */ new Map(),
        plugins,
        onSerialize: (data, initial) => {
          let serialized = initial ? TSR_PREFIX + data : data;
          if (trackPlugins.didRun) {
            serialized = P_PREFIX + serialized + P_SUFFIX;
          }
          scriptBuffer.enqueue(serialized);
        },
        scopeId: SCOPE_ID,
        onDone: () => {
          scriptBuffer.enqueue(GLOBAL_TSR + ".e()");
          scriptBuffer.flush();
          signalSerializationComplete();
        },
        onError: (err) => {
          console.error("Serialization error:", err);
          signalSerializationComplete();
        }
      });
    },
    isDehydrated() {
      return _dehydrated;
    },
    isSerializationFinished() {
      return _serializationFinished;
    },
    onRenderFinished: (listener) => renderFinishedListeners.push(listener),
    onSerializationFinished: (listener) => serializationFinishedListeners.push(listener),
    setRenderFinished: () => {
      try {
        renderFinishedListeners.forEach((l) => l());
      } catch (err) {
        console.error("Error in render finished listener:", err);
      } finally {
        renderFinishedListeners.length = 0;
      }
      scriptBuffer.liftBarrier();
    },
    takeBufferedScripts() {
      const scripts = scriptBuffer.takeAll();
      const serverBufferedScript = {
        tag: "script",
        attrs: {
          nonce: router.options.ssr?.nonce,
          className: "$tsr",
          id: TSR_SCRIPT_BARRIER_ID
        },
        children: scripts
      };
      return serverBufferedScript;
    },
    liftScriptBarrier() {
      scriptBuffer.liftBarrier();
    },
    takeBufferedHtml() {
      if (!injectedHtmlBuffer) {
        return void 0;
      }
      const buffered = injectedHtmlBuffer;
      injectedHtmlBuffer = "";
      return buffered;
    },
    cleanup() {
      if (!router.serverSsr) return;
      renderFinishedListeners.length = 0;
      serializationFinishedListeners.length = 0;
      injectedHtmlBuffer = "";
      scriptBuffer.cleanup();
      router.serverSsr = void 0;
    }
  };
}
function getOrigin(request) {
  try {
    return new URL(request.url).origin;
  } catch {
  }
  return "http://localhost";
}
function getNormalizedURL(url, base) {
  if (typeof url === "string") url = url.replace("\\", "%5C");
  const rawUrl = new URL(url, base);
  const { path: decodedPathname, handledProtocolRelativeURL } = decodePath(
    rawUrl.pathname
  );
  const searchParams = new URLSearchParams(rawUrl.search);
  const normalizedHref = decodedPathname + (searchParams.size > 0 ? "?" : "") + searchParams.toString() + rawUrl.hash;
  return {
    url: new URL(normalizedHref, rawUrl.origin),
    handledProtocolRelativeURL
  };
}
export {
  attachRouterServerSsrUtils,
  dehydrateMatch,
  getNormalizedURL,
  getOrigin
};//# sourceMappingURL=https://main.vscode-cdn.net/sourcemaps/ecfbad74d93962fc8ca485d93ab9b4f3d4cb6cf8/node_modules/@tanstack/router-core/dist/esm/ssr/ssr-server.js.map
