{"version":3,"file":"app-browser-stream.js","names":[],"sources":["../../src/server/app-browser-stream.ts"],"sourcesContent":["import type { ReactFormState } from \"react-dom/client\";\nimport { RSC_FORM_STATE_GLOBAL } from \"./app-browser-hydration.js\";\n\ntype NavigationSnapshot = {\n  pathname: string;\n  searchParams: [string, string][];\n};\n\ntype LegacyRscEmbedData = {\n  rsc: string[];\n  params?: Record<string, string | string[]>;\n  nav?: NavigationSnapshot;\n};\n\ntype VinextBrowserGlobals = {\n  __VINEXT_RSC__?: LegacyRscEmbedData;\n  __VINEXT_RSC_CHUNKS__?: string[];\n  __VINEXT_RSC_DONE__?: boolean;\n  [RSC_FORM_STATE_GLOBAL]?: ReactFormState;\n  __VINEXT_RSC_PARAMS__?: Record<string, string | string[]>;\n  __VINEXT_RSC_NAV__?: NavigationSnapshot;\n};\n\nexport function getVinextBrowserGlobal(): typeof globalThis & VinextBrowserGlobals {\n  return globalThis as typeof globalThis & VinextBrowserGlobals;\n}\n\nfunction createUnexpectedRscStreamCloseError(): Error {\n  return new Error(\n    \"The connection to the page was unexpectedly closed, possibly due to the stop button being clicked, loss of Wi-Fi, or an unstable internet connection.\",\n  );\n}\n\n/**\n * Convert embedded text chunks back to a ReadableStream of Uint8Array chunks.\n */\nexport function chunksToReadableStream(chunks: readonly string[]): ReadableStream<Uint8Array> {\n  const encoder = new TextEncoder();\n  return new ReadableStream<Uint8Array>({\n    start(controller) {\n      for (const chunk of chunks) {\n        controller.enqueue(encoder.encode(chunk));\n      }\n      controller.close();\n    },\n  });\n}\n\n/**\n * Create a ReadableStream from progressively-embedded RSC chunks.\n *\n * The server pushes chunks into `__VINEXT_RSC_CHUNKS__` via inline <script>\n * tags. We monkey-patch `push()` so new chunks stream to React immediately\n * instead of polling with setTimeout.\n */\nexport function createProgressiveRscStream(): ReadableStream<Uint8Array> {\n  const encoder = new TextEncoder();\n\n  return new ReadableStream<Uint8Array>({\n    start(controller) {\n      const vinext = getVinextBrowserGlobal();\n      const initialChunks = vinext.__VINEXT_RSC_CHUNKS__ ?? [];\n\n      for (const chunk of initialChunks) {\n        controller.enqueue(encoder.encode(chunk));\n      }\n\n      if (vinext.__VINEXT_RSC_DONE__) {\n        controller.close();\n        return;\n      }\n\n      let closed = false;\n      let cancelDocumentCompletionCheck: (() => void) | undefined;\n      const cancelPendingDocumentCompletionCheck = () => {\n        const cancel = cancelDocumentCompletionCheck;\n        cancelDocumentCompletionCheck = undefined;\n        cancel?.();\n      };\n      const closeOnce = () => {\n        if (!closed) {\n          closed = true;\n          cancelPendingDocumentCompletionCheck();\n          controller.close();\n        }\n      };\n      const errorOnce = () => {\n        if (!closed) {\n          closed = true;\n          cancelPendingDocumentCompletionCheck();\n          controller.error(createUnexpectedRscStreamCloseError());\n        }\n      };\n\n      const arr = (vinext.__VINEXT_RSC_CHUNKS__ ??= []);\n      arr.push = function (...chunks: string[]): number {\n        const length = Array.prototype.push.apply(this, chunks);\n\n        if (closed) return length;\n\n        for (const chunk of chunks) {\n          controller.enqueue(encoder.encode(chunk));\n        }\n\n        if (vinext.__VINEXT_RSC_DONE__) {\n          closeOnce();\n        }\n\n        return length;\n      };\n\n      if (typeof document !== \"undefined\") {\n        if (document.readyState === \"loading\") {\n          document.addEventListener(\"DOMContentLoaded\", errorOnce);\n          cancelDocumentCompletionCheck = () =>\n            document.removeEventListener(\"DOMContentLoaded\", errorOnce);\n        } else {\n          const timeoutId = setTimeout(errorOnce);\n          cancelDocumentCompletionCheck = () => clearTimeout(timeoutId);\n        }\n      }\n    },\n  });\n}\n"],"mappings":";AAuBA,SAAgB,yBAAmE;CACjF,OAAO;;AAGT,SAAS,sCAA6C;CACpD,uBAAO,IAAI,MACT,wJACD;;;;;AAMH,SAAgB,uBAAuB,QAAuD;CAC5F,MAAM,UAAU,IAAI,aAAa;CACjC,OAAO,IAAI,eAA2B,EACpC,MAAM,YAAY;EAChB,KAAK,MAAM,SAAS,QAClB,WAAW,QAAQ,QAAQ,OAAO,MAAM,CAAC;EAE3C,WAAW,OAAO;IAErB,CAAC;;;;;;;;;AAUJ,SAAgB,6BAAyD;CACvE,MAAM,UAAU,IAAI,aAAa;CAEjC,OAAO,IAAI,eAA2B,EACpC,MAAM,YAAY;EAChB,MAAM,SAAS,wBAAwB;EACvC,MAAM,gBAAgB,OAAO,yBAAyB,EAAE;EAExD,KAAK,MAAM,SAAS,eAClB,WAAW,QAAQ,QAAQ,OAAO,MAAM,CAAC;EAG3C,IAAI,OAAO,qBAAqB;GAC9B,WAAW,OAAO;GAClB;;EAGF,IAAI,SAAS;EACb,IAAI;EACJ,MAAM,6CAA6C;GACjD,MAAM,SAAS;GACf,gCAAgC,KAAA;GAChC,UAAU;;EAEZ,MAAM,kBAAkB;GACtB,IAAI,CAAC,QAAQ;IACX,SAAS;IACT,sCAAsC;IACtC,WAAW,OAAO;;;EAGtB,MAAM,kBAAkB;GACtB,IAAI,CAAC,QAAQ;IACX,SAAS;IACT,sCAAsC;IACtC,WAAW,MAAM,qCAAqC,CAAC;;;EAI3D,MAAM,MAAO,OAAO,0BAA0B,EAAE;EAChD,IAAI,OAAO,SAAU,GAAG,QAA0B;GAChD,MAAM,SAAS,MAAM,UAAU,KAAK,MAAM,MAAM,OAAO;GAEvD,IAAI,QAAQ,OAAO;GAEnB,KAAK,MAAM,SAAS,QAClB,WAAW,QAAQ,QAAQ,OAAO,MAAM,CAAC;GAG3C,IAAI,OAAO,qBACT,WAAW;GAGb,OAAO;;EAGT,IAAI,OAAO,aAAa,aACtB,IAAI,SAAS,eAAe,WAAW;GACrC,SAAS,iBAAiB,oBAAoB,UAAU;GACxD,sCACE,SAAS,oBAAoB,oBAAoB,UAAU;SACxD;GACL,MAAM,YAAY,WAAW,UAAU;GACvC,sCAAsC,aAAa,UAAU;;IAIpE,CAAC"}