{"version":3,"file":"router-state.js","names":[],"sources":["../../src/shims/router-state.ts"],"sourcesContent":["/**\n * Server-only Pages Router state backed by AsyncLocalStorage.\n *\n * Provides request-scoped isolation for SSR context (pathname, query,\n * locale) so concurrent requests on Workers don't share state.\n *\n * This module is server-only — it imports node:async_hooks and must NOT\n * be bundled for the browser.\n */\n\nimport { _registerRouterStateAccessors } from \"./router.js\";\nimport { getOrCreateAls } from \"./internal/als-registry.js\";\nimport {\n  getRequestContext,\n  isInsideUnifiedScope,\n  runWithUnifiedStateMutation,\n} from \"./unified-request-context.js\";\n\n// ---------------------------------------------------------------------------\n// ALS setup\n// ---------------------------------------------------------------------------\n\nexport type SSRContext = {\n  pathname: string;\n  query: Record<string, string | string[]>;\n  asPath: string;\n  locale?: string;\n  locales?: string[];\n  defaultLocale?: string;\n};\n\nexport type RouterState = {\n  ssrContext: SSRContext | null;\n};\n\nconst _FALLBACK_KEY = Symbol.for(\"vinext.router.fallback\");\nconst _g = globalThis as unknown as Record<PropertyKey, unknown>;\nconst _als = getOrCreateAls<RouterState>(\"vinext.router.als\");\n\nconst _fallbackState = (_g[_FALLBACK_KEY] ??= {\n  ssrContext: null,\n} satisfies RouterState) as RouterState;\n\nfunction _getState(): RouterState {\n  if (isInsideUnifiedScope()) {\n    return getRequestContext();\n  }\n  return _als.getStore() ?? _fallbackState;\n}\n\n/**\n * Run a function within a router state ALS scope.\n * Ensures per-request isolation for Pages Router SSR context\n * on concurrent runtimes.\n */\nexport function runWithRouterState<T>(fn: () => Promise<T>): Promise<T>;\nexport function runWithRouterState<T>(fn: () => T | Promise<T>): T | Promise<T>;\nexport function runWithRouterState<T>(fn: () => T | Promise<T>): T | Promise<T> {\n  if (isInsideUnifiedScope()) {\n    return runWithUnifiedStateMutation((uCtx) => {\n      uCtx.ssrContext = null;\n    }, fn);\n  }\n\n  const state: RouterState = {\n    ssrContext: null,\n  };\n  return _als.run(state, fn);\n}\n\n// ---------------------------------------------------------------------------\n// Register ALS-backed accessors into router.ts\n// ---------------------------------------------------------------------------\n\n_registerRouterStateAccessors({\n  getSSRContext(): SSRContext | null {\n    return _getState().ssrContext;\n  },\n\n  setSSRContext(ctx: SSRContext | null): void {\n    _getState().ssrContext = ctx;\n  },\n});\n"],"mappings":";;;;;;;;;;;;;AAmCA,MAAM,gBAAgB,OAAO,IAAI,yBAAyB;AAC1D,MAAM,KAAK;AACX,MAAM,OAAO,eAA4B,oBAAoB;AAE7D,MAAM,iBAAkB,GAAG,mBAAmB,EAC5C,YAAY,MACb;AAED,SAAS,YAAyB;CAChC,IAAI,sBAAsB,EACxB,OAAO,mBAAmB;CAE5B,OAAO,KAAK,UAAU,IAAI;;AAU5B,SAAgB,mBAAsB,IAA0C;CAC9E,IAAI,sBAAsB,EACxB,OAAO,6BAA6B,SAAS;EAC3C,KAAK,aAAa;IACjB,GAAG;CAMR,OAAO,KAAK,IAAI,EAFd,YAAY,MAEO,EAAE,GAAG;;AAO5B,8BAA8B;CAC5B,gBAAmC;EACjC,OAAO,WAAW,CAAC;;CAGrB,cAAc,KAA8B;EAC1C,WAAW,CAAC,aAAa;;CAE5B,CAAC"}