import { NOOP_ACTIONS_MOD } from "../actions/noop-actions.js";
import { createI18nMiddleware } from "../i18n/middleware.js";
import { createOriginCheckMiddleware } from "./app/middlewares.js";
import { ActionNotFoundError } from "./errors/errors-data.js";
import { AstroError } from "./errors/index.js";
import { NOOP_MIDDLEWARE_FN } from "./middleware/noop-middleware.js";
import { sequence } from "./middleware/sequence.js";
import { RedirectSinglePageBuiltModule } from "./redirects/index.js";
import { RouteCache } from "./render/route-cache.js";
import { createDefaultRoutes } from "./routing/default.js";
import { NodePool } from "../runtime/server/render/queue/pool.js";
import { HTMLStringCache } from "../runtime/server/html-string-cache.js";
import { FORBIDDEN_PATH_KEYS } from "@astrojs/internal-helpers/object";
import { loadLogger } from "./logger/load.js";
class Pipeline {
  internalMiddleware;
  resolvedMiddleware = void 0;
  resolvedLogger = false;
  resolvedActions = void 0;
  resolvedSessionDriver = void 0;
  resolvedCacheProvider = void 0;
  compiledCacheRoutes = void 0;
  nodePool;
  htmlStringCache;
  logger;
  manifest;
  /**
   * "development" or "production" only
   */
  runtimeMode;
  renderers;
  resolve;
  streaming;
  /**
   * Used to provide better error messages for `Astro.clientAddress`
   */
  adapterName;
  clientDirectives;
  inlinedScripts;
  compressHTML;
  i18n;
  middleware;
  routeCache;
  /**
   * Used for `Astro.site`.
   */
  site;
  /**
   * Array of built-in, internal, routes.
   * Used to find the route module
   */
  defaultRoutes;
  actions;
  sessionDriver;
  cacheProvider;
  cacheConfig;
  serverIslands;
  constructor(logger, manifest, runtimeMode, renderers, resolve, streaming, adapterName = manifest.adapterName, clientDirectives = manifest.clientDirectives, inlinedScripts = manifest.inlinedScripts, compressHTML = manifest.compressHTML, i18n = manifest.i18n, middleware = manifest.middleware, routeCache = new RouteCache(logger, runtimeMode), site = manifest.site ? new URL(manifest.site) : void 0, defaultRoutes = createDefaultRoutes(manifest), actions = manifest.actions, sessionDriver = manifest.sessionDriver, cacheProvider = manifest.cacheProvider, cacheConfig = manifest.cacheConfig, serverIslands = manifest.serverIslandMappings) {
    this.logger = logger;
    this.manifest = manifest;
    this.runtimeMode = runtimeMode;
    this.renderers = renderers;
    this.resolve = resolve;
    this.streaming = streaming;
    this.adapterName = adapterName;
    this.clientDirectives = clientDirectives;
    this.inlinedScripts = inlinedScripts;
    this.compressHTML = compressHTML;
    this.i18n = i18n;
    this.middleware = middleware;
    this.routeCache = routeCache;
    this.site = site;
    this.defaultRoutes = defaultRoutes;
    this.actions = actions;
    this.sessionDriver = sessionDriver;
    this.cacheProvider = cacheProvider;
    this.cacheConfig = cacheConfig;
    this.serverIslands = serverIslands;
    this.internalMiddleware = [];
    if (i18n?.strategy !== "manual") {
      this.internalMiddleware.push(
        createI18nMiddleware(i18n, manifest.base, manifest.trailingSlash, manifest.buildFormat)
      );
    }
    if (manifest.experimentalQueuedRendering.enabled) {
      this.nodePool = this.createNodePool(
        manifest.experimentalQueuedRendering.poolSize ?? 1e3,
        false
      );
      if (manifest.experimentalQueuedRendering.contentCache) {
        this.htmlStringCache = this.createStringCache();
      }
    }
  }
  /**
   * Resolves the middleware from the manifest, and returns the `onRequest` function. If `onRequest` isn't there,
   * it returns a no-op function
   */
  async getMiddleware() {
    if (this.resolvedMiddleware) {
      return this.resolvedMiddleware;
    }
    if (this.middleware) {
      const middlewareInstance = await this.middleware();
      const onRequest = middlewareInstance.onRequest ?? NOOP_MIDDLEWARE_FN;
      const internalMiddlewares = [onRequest];
      if (this.manifest.checkOrigin) {
        internalMiddlewares.unshift(createOriginCheckMiddleware());
      }
      this.resolvedMiddleware = sequence(...internalMiddlewares);
      return this.resolvedMiddleware;
    } else {
      this.resolvedMiddleware = NOOP_MIDDLEWARE_FN;
      return this.resolvedMiddleware;
    }
  }
  /**
   * Clears the cached middleware so it is re-resolved on the next request.
   * Called via HMR when middleware files change during development.
   */
  clearMiddleware() {
    this.resolvedMiddleware = void 0;
  }
  /**
   * Resolves the logger destination from the manifest and updates the pipeline logger.
   * If the user configured `experimental.logger`, the bundled logger factory is loaded
   * and replaces the default console destination. This is lazy and only resolves once.
   */
  async getLogger() {
    if (this.resolvedLogger) {
      return this.logger;
    }
    this.resolvedLogger = true;
    if (this.manifest.experimentalLogger) {
      this.logger = await loadLogger(this.manifest.experimentalLogger);
    }
    return this.logger;
  }
  async getActions() {
    if (this.resolvedActions) {
      return this.resolvedActions;
    } else if (this.actions) {
      return this.actions();
    }
    return NOOP_ACTIONS_MOD;
  }
  async getSessionDriver() {
    if (this.resolvedSessionDriver !== void 0) {
      return this.resolvedSessionDriver;
    }
    if (this.sessionDriver) {
      const driverModule = await this.sessionDriver();
      this.resolvedSessionDriver = driverModule?.default || null;
      return this.resolvedSessionDriver;
    }
    this.resolvedSessionDriver = null;
    return null;
  }
  async getCacheProvider() {
    if (this.resolvedCacheProvider !== void 0) {
      return this.resolvedCacheProvider;
    }
    if (this.cacheProvider) {
      const mod = await this.cacheProvider();
      const factory = mod?.default || null;
      this.resolvedCacheProvider = factory ? factory(this.cacheConfig?.options) : null;
      return this.resolvedCacheProvider;
    }
    this.resolvedCacheProvider = null;
    return null;
  }
  async getServerIslands() {
    if (this.serverIslands) {
      return this.serverIslands();
    }
    return {
      serverIslandMap: /* @__PURE__ */ new Map(),
      serverIslandNameMap: /* @__PURE__ */ new Map()
    };
  }
  async getAction(path) {
    const pathKeys = path.split(".").map((key) => decodeURIComponent(key));
    let { server } = await this.getActions();
    if (!server || !(typeof server === "object")) {
      throw new TypeError(
        `Expected \`server\` export in actions file to be an object. Received ${typeof server}.`
      );
    }
    for (const key of pathKeys) {
      if (FORBIDDEN_PATH_KEYS.has(key)) {
        throw new AstroError({
          ...ActionNotFoundError,
          message: ActionNotFoundError.message(pathKeys.join("."))
        });
      }
      if (!Object.hasOwn(server, key)) {
        throw new AstroError({
          ...ActionNotFoundError,
          message: ActionNotFoundError.message(pathKeys.join("."))
        });
      }
      server = server[key];
    }
    if (typeof server !== "function") {
      throw new TypeError(
        `Expected handler for action ${pathKeys.join(".")} to be a function. Received ${typeof server}.`
      );
    }
    return server;
  }
  async getModuleForRoute(route) {
    for (const defaultRoute of this.defaultRoutes) {
      if (route.component === defaultRoute.component) {
        return {
          page: () => Promise.resolve(defaultRoute.instance)
        };
      }
    }
    if (route.type === "redirect") {
      return RedirectSinglePageBuiltModule;
    } else {
      if (this.manifest.pageMap) {
        const importComponentInstance = this.manifest.pageMap.get(route.component);
        if (!importComponentInstance) {
          throw new Error(
            `Unexpectedly unable to find a component instance for route ${route.route}`
          );
        }
        return await importComponentInstance();
      } else if (this.manifest.pageModule) {
        return this.manifest.pageModule;
      }
      throw new Error(
        "Astro couldn't find the correct page to render, probably because it wasn't correctly mapped for SSR usage. This is an internal error, please file an issue."
      );
    }
  }
  createNodePool(poolSize, stats) {
    return new NodePool(poolSize, stats);
  }
  createStringCache() {
    return new HTMLStringCache(1e3);
  }
}
export {
  Pipeline
};
