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import { matchSiteHost } from "@/worker/lib/host-match";
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type Awaitable<T> = T | Promise<T>;
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export interface HttpEntryDeps<TEnv> {
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  handlePartyRequest: (request: Request, env: TEnv) => Awaitable<Response | null>;
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  handleAppRequest: (request: Request, env: TEnv, ctx: ExecutionContext) => Awaitable<Response>;
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  handleAssetRequest: (request: Request, env: TEnv) => Awaitable<Response>;
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  handleShellRequest: (request: Request, env: TEnv) => Awaitable<Response>;
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  handleSiteRequest: (request: Request, env: TEnv, ctx: ExecutionContext) => Awaitable<Response>;
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}
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export function isDirectAssetRequest(pathname: string): boolean {
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  return /\.\w+$/.test(pathname) && !pathname.endsWith(".html");
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}
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export function isViteDevRuntimeAssetRequest(request: Request): boolean {
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  if (request.method !== "GET" && request.method !== "HEAD") return false;
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  const { pathname } = new URL(request.url);
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  return pathname.startsWith("/@") || pathname.startsWith("/src/") || pathname.startsWith("/node_modules/");
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}
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export async function handleHttpRequest<TEnv extends Pick<Env, "PUBLISHED_SITE_DOMAIN">>(
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  request: Request,
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  env: TEnv,
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  ctx: ExecutionContext,
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  deps: HttpEntryDeps<TEnv>,
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): Promise<Response> {
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  const url = new URL(request.url);
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  if (import.meta.env.DEV && isViteDevRuntimeAssetRequest(request)) {
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    return deps.handleAssetRequest(request, env);
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  }
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  // Site host dispatch runs BEFORE any path-prefix branch so a published
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  // subdomain or apex request never falls through to /api, /uploads, the
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  // SPA shell, or the static asset binding. The Sites surface owns every
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  // path under its host (Class A page/asset OR Class B robots/apex).
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  const siteMatch = matchSiteHost(url, env);
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  if (siteMatch.kind !== "none") {
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    return deps.handleSiteRequest(request, env, ctx);
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  }
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  const { pathname } = url;
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  const isReadRequest = request.method === "GET" || request.method === "HEAD";
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  if (pathname.startsWith("/parties/")) {
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    return (await deps.handlePartyRequest(request, env)) ?? deps.handleAppRequest(request, env, ctx);
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  }
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  if (pathname.startsWith("/api/") || pathname.startsWith("/uploads/")) {
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    return deps.handleAppRequest(request, env, ctx);
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  }
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  if (isReadRequest && isDirectAssetRequest(pathname)) {
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    return deps.handleAssetRequest(request, env);
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  }
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  if (request.method === "GET") {
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    return deps.handleShellRequest(request, env);
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  }
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  if (request.method === "HEAD") {
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    return deps.handleAssetRequest(request, env);
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  }
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  return deps.handleAppRequest(request, env, ctx);
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}