{"version":3,"file":"openai-codex-responses.d.ts","sourceRoot":"","sources":["../../src/providers/openai-codex-responses.ts"],"names":[],"mappings":"AAmBA,OAAO,KAAK,EAKX,mBAAmB,EACnB,cAAc,EACd,aAAa,EACb,MAAM,aAAa,CAAC;AA4BrB,MAAM,WAAW,2BAA4B,SAAQ,aAAa;IACjE,eAAe,CAAC,EAAE,MAAM,GAAG,SAAS,GAAG,KAAK,GAAG,QAAQ,GAAG,MAAM,GAAG,OAAO,CAAC;IAC3E,gBAAgB,CAAC,EAAE,MAAM,GAAG,SAAS,GAAG,UAAU,GAAG,KAAK,GAAG,IAAI,GAAG,IAAI,CAAC;IACzE,aAAa,CAAC,EAAE,KAAK,GAAG,QAAQ,GAAG,MAAM,CAAC;CAC1C;AAkDD,eAAO,MAAM,0BAA0B,EAAE,cAAc,CAAC,wBAAwB,EAAE,2BAA2B,CAiK5G,CAAC;AAEF,eAAO,MAAM,gCAAgC,EAAE,cAAc,CAAC,wBAAwB,EAAE,mBAAmB,CAiB1G,CAAC","sourcesContent":["import type * as NodeOs from \"node:os\";\nimport type { Tool as OpenAITool, ResponseInput, ResponseStreamEvent } from \"openai/resources/responses/responses.js\";\n\n// NEVER convert to top-level runtime imports - breaks browser/Vite builds (web-ui)\nlet _os: typeof NodeOs | null = null;\n\ntype DynamicImport = (specifier: string) => Promise<unknown>;\n\nconst dynamicImport: DynamicImport = (specifier) => import(specifier);\nconst NODE_OS_SPECIFIER = \"node:\" + \"os\";\n\nif (typeof process !== \"undefined\" && (process.versions?.node || process.versions?.bun)) {\n\tdynamicImport(NODE_OS_SPECIFIER).then((m) => {\n\t\t_os = m as typeof NodeOs;\n\t});\n}\n\nimport { getEnvApiKey } from \"../env-api-keys.js\";\nimport { supportsXhigh } from \"../models.js\";\nimport type {\n\tApi,\n\tAssistantMessage,\n\tContext,\n\tModel,\n\tSimpleStreamOptions,\n\tStreamFunction,\n\tStreamOptions,\n} from \"../types.js\";\nimport { AssistantMessageEventStream } from \"../utils/event-stream.js\";\nimport { convertResponsesMessages, convertResponsesTools, processResponsesStream } from \"./openai-responses-shared.js\";\nimport { buildBaseOptions, clampReasoning } from \"./simple-options.js\";\n\n// ============================================================================\n// Configuration\n// ============================================================================\n\nconst DEFAULT_CODEX_BASE_URL = \"https://chatgpt.com/backend-api\";\nconst JWT_CLAIM_PATH = \"https://api.openai.com/auth\" as const;\nconst MAX_RETRIES = 3;\nconst BASE_DELAY_MS = 1000;\nconst CODEX_TOOL_CALL_PROVIDERS = new Set([\"openai\", \"openai-codex\", \"opencode\"]);\n\nconst CODEX_RESPONSE_STATUSES = new Set<CodexResponseStatus>([\n\t\"completed\",\n\t\"incomplete\",\n\t\"failed\",\n\t\"cancelled\",\n\t\"queued\",\n\t\"in_progress\",\n]);\n\n// ============================================================================\n// Types\n// ============================================================================\n\nexport interface OpenAICodexResponsesOptions extends StreamOptions {\n\treasoningEffort?: \"none\" | \"minimal\" | \"low\" | \"medium\" | \"high\" | \"xhigh\";\n\treasoningSummary?: \"auto\" | \"concise\" | \"detailed\" | \"off\" | \"on\" | null;\n\ttextVerbosity?: \"low\" | \"medium\" | \"high\";\n}\n\ntype CodexResponseStatus = \"completed\" | \"incomplete\" | \"failed\" | \"cancelled\" | \"queued\" | \"in_progress\";\n\ninterface RequestBody {\n\tmodel: string;\n\tstore?: boolean;\n\tstream?: boolean;\n\tinstructions?: string;\n\tinput?: ResponseInput;\n\ttools?: OpenAITool[];\n\ttool_choice?: \"auto\";\n\tparallel_tool_calls?: boolean;\n\ttemperature?: number;\n\treasoning?: { effort?: string; summary?: string };\n\ttext?: { verbosity?: string };\n\tinclude?: string[];\n\tprompt_cache_key?: string;\n\t[key: string]: unknown;\n}\n\n// ============================================================================\n// Retry Helpers\n// ============================================================================\n\nfunction isRetryableError(status: number, errorText: string): boolean {\n\tif (status === 429 || status === 500 || status === 502 || status === 503 || status === 504) {\n\t\treturn true;\n\t}\n\treturn /rate.?limit|overloaded|service.?unavailable|upstream.?connect|connection.?refused/i.test(errorText);\n}\n\nfunction sleep(ms: number, signal?: AbortSignal): Promise<void> {\n\treturn new Promise((resolve, reject) => {\n\t\tif (signal?.aborted) {\n\t\t\treject(new Error(\"Request was aborted\"));\n\t\t\treturn;\n\t\t}\n\t\tconst timeout = setTimeout(resolve, ms);\n\t\tsignal?.addEventListener(\"abort\", () => {\n\t\t\tclearTimeout(timeout);\n\t\t\treject(new Error(\"Request was aborted\"));\n\t\t});\n\t});\n}\n\n// ============================================================================\n// Main Stream Function\n// ============================================================================\n\nexport const streamOpenAICodexResponses: StreamFunction<\"openai-codex-responses\", OpenAICodexResponsesOptions> = (\n\tmodel: Model<\"openai-codex-responses\">,\n\tcontext: Context,\n\toptions?: OpenAICodexResponsesOptions,\n): AssistantMessageEventStream => {\n\tconst stream = new AssistantMessageEventStream();\n\n\t(async () => {\n\t\tconst output: AssistantMessage = {\n\t\t\trole: \"assistant\",\n\t\t\tcontent: [],\n\t\t\tapi: \"openai-codex-responses\" as Api,\n\t\t\tprovider: model.provider,\n\t\t\tmodel: model.id,\n\t\t\tusage: {\n\t\t\t\tinput: 0,\n\t\t\t\toutput: 0,\n\t\t\t\tcacheRead: 0,\n\t\t\t\tcacheWrite: 0,\n\t\t\t\ttotalTokens: 0,\n\t\t\t\tcost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 },\n\t\t\t},\n\t\t\tstopReason: \"stop\",\n\t\t\ttimestamp: Date.now(),\n\t\t};\n\n\t\ttry {\n\t\t\tconst apiKey = options?.apiKey || getEnvApiKey(model.provider) || \"\";\n\t\t\tif (!apiKey) {\n\t\t\t\tthrow new Error(`No API key for provider: ${model.provider}`);\n\t\t\t}\n\n\t\t\tconst accountId = extractAccountId(apiKey);\n\t\t\tlet body = buildRequestBody(model, context, options);\n\t\t\tconst nextBody = await options?.onPayload?.(body, model);\n\t\t\tif (nextBody !== undefined) {\n\t\t\t\tbody = nextBody as RequestBody;\n\t\t\t}\n\t\t\tconst websocketRequestId = options?.sessionId || createCodexRequestId();\n\t\t\tconst sseHeaders = buildSSEHeaders(model.headers, options?.headers, accountId, apiKey, options?.sessionId);\n\t\t\tconst websocketHeaders = buildWebSocketHeaders(\n\t\t\t\tmodel.headers,\n\t\t\t\toptions?.headers,\n\t\t\t\taccountId,\n\t\t\t\tapiKey,\n\t\t\t\twebsocketRequestId,\n\t\t\t);\n\t\t\tconst bodyJson = JSON.stringify(body);\n\t\t\tconst transport = options?.transport || \"sse\";\n\n\t\t\tif (transport !== \"sse\") {\n\t\t\t\tlet websocketStarted = false;\n\t\t\t\ttry {\n\t\t\t\t\tawait processWebSocketStream(\n\t\t\t\t\t\tresolveCodexWebSocketUrl(model.baseUrl),\n\t\t\t\t\t\tbody,\n\t\t\t\t\t\twebsocketHeaders,\n\t\t\t\t\t\toutput,\n\t\t\t\t\t\tstream,\n\t\t\t\t\t\tmodel,\n\t\t\t\t\t\t() => {\n\t\t\t\t\t\t\twebsocketStarted = true;\n\t\t\t\t\t\t},\n\t\t\t\t\t\toptions,\n\t\t\t\t\t);\n\n\t\t\t\t\tif (options?.signal?.aborted) {\n\t\t\t\t\t\tthrow new Error(\"Request was aborted\");\n\t\t\t\t\t}\n\t\t\t\t\tstream.push({\n\t\t\t\t\t\ttype: \"done\",\n\t\t\t\t\t\treason: output.stopReason as \"stop\" | \"length\" | \"toolUse\",\n\t\t\t\t\t\tmessage: output,\n\t\t\t\t\t});\n\t\t\t\t\tstream.end();\n\t\t\t\t\treturn;\n\t\t\t\t} catch (error) {\n\t\t\t\t\tif (transport === \"websocket\" || websocketStarted) {\n\t\t\t\t\t\tthrow error;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Fetch with retry logic for rate limits and transient errors\n\t\t\tlet response: Response | undefined;\n\t\t\tlet lastError: Error | undefined;\n\n\t\t\tfor (let attempt = 0; attempt <= MAX_RETRIES; attempt++) {\n\t\t\t\tif (options?.signal?.aborted) {\n\t\t\t\t\tthrow new Error(\"Request was aborted\");\n\t\t\t\t}\n\n\t\t\t\ttry {\n\t\t\t\t\tresponse = await fetch(resolveCodexUrl(model.baseUrl), {\n\t\t\t\t\t\tmethod: \"POST\",\n\t\t\t\t\t\theaders: sseHeaders,\n\t\t\t\t\t\tbody: bodyJson,\n\t\t\t\t\t\tsignal: options?.signal,\n\t\t\t\t\t});\n\n\t\t\t\t\tif (response.ok) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst errorText = await response.text();\n\t\t\t\t\tif (attempt < MAX_RETRIES && isRetryableError(response.status, errorText)) {\n\t\t\t\t\t\tconst delayMs = BASE_DELAY_MS * 2 ** attempt;\n\t\t\t\t\t\tawait sleep(delayMs, options?.signal);\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Parse error for friendly message on final attempt or non-retryable error\n\t\t\t\t\tconst fakeResponse = new Response(errorText, {\n\t\t\t\t\t\tstatus: response.status,\n\t\t\t\t\t\tstatusText: response.statusText,\n\t\t\t\t\t});\n\t\t\t\t\tconst info = await parseErrorResponse(fakeResponse);\n\t\t\t\t\tthrow new Error(info.friendlyMessage || info.message);\n\t\t\t\t} catch (error) {\n\t\t\t\t\tif (error instanceof Error) {\n\t\t\t\t\t\tif (error.name === \"AbortError\" || error.message === \"Request was aborted\") {\n\t\t\t\t\t\t\tthrow new Error(\"Request was aborted\");\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tlastError = error instanceof Error ? error : new Error(String(error));\n\t\t\t\t\t// Network errors are retryable\n\t\t\t\t\tif (attempt < MAX_RETRIES && !lastError.message.includes(\"usage limit\")) {\n\t\t\t\t\t\tconst delayMs = BASE_DELAY_MS * 2 ** attempt;\n\t\t\t\t\t\tawait sleep(delayMs, options?.signal);\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\t\tthrow lastError;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (!response?.ok) {\n\t\t\t\tthrow lastError ?? new Error(\"Failed after retries\");\n\t\t\t}\n\n\t\t\tif (!response.body) {\n\t\t\t\tthrow new Error(\"No response body\");\n\t\t\t}\n\n\t\t\tstream.push({ type: \"start\", partial: output });\n\t\t\tawait processStream(response, output, stream, model);\n\n\t\t\tif (options?.signal?.aborted) {\n\t\t\t\tthrow new Error(\"Request was aborted\");\n\t\t\t}\n\n\t\t\tstream.push({ type: \"done\", reason: output.stopReason as \"stop\" | \"length\" | \"toolUse\", message: output });\n\t\t\tstream.end();\n\t\t} catch (error) {\n\t\t\toutput.stopReason = options?.signal?.aborted ? \"aborted\" : \"error\";\n\t\t\toutput.errorMessage = error instanceof Error ? error.message : String(error);\n\t\t\tstream.push({ type: \"error\", reason: output.stopReason, error: output });\n\t\t\tstream.end();\n\t\t}\n\t})();\n\n\treturn stream;\n};\n\nexport const streamSimpleOpenAICodexResponses: StreamFunction<\"openai-codex-responses\", SimpleStreamOptions> = (\n\tmodel: Model<\"openai-codex-responses\">,\n\tcontext: Context,\n\toptions?: SimpleStreamOptions,\n): AssistantMessageEventStream => {\n\tconst apiKey = options?.apiKey || getEnvApiKey(model.provider);\n\tif (!apiKey) {\n\t\tthrow new Error(`No API key for provider: ${model.provider}`);\n\t}\n\n\tconst base = buildBaseOptions(model, options, apiKey);\n\tconst reasoningEffort = supportsXhigh(model) ? options?.reasoning : clampReasoning(options?.reasoning);\n\n\treturn streamOpenAICodexResponses(model, context, {\n\t\t...base,\n\t\treasoningEffort,\n\t} satisfies OpenAICodexResponsesOptions);\n};\n\n// ============================================================================\n// Request Building\n// ============================================================================\n\nfunction buildRequestBody(\n\tmodel: Model<\"openai-codex-responses\">,\n\tcontext: Context,\n\toptions?: OpenAICodexResponsesOptions,\n): RequestBody {\n\tconst messages = convertResponsesMessages(model, context, CODEX_TOOL_CALL_PROVIDERS, {\n\t\tincludeSystemPrompt: false,\n\t});\n\n\tconst body: RequestBody = {\n\t\tmodel: model.id,\n\t\tstore: false,\n\t\tstream: true,\n\t\tinstructions: context.systemPrompt,\n\t\tinput: messages,\n\t\ttext: { verbosity: options?.textVerbosity || \"medium\" },\n\t\tinclude: [\"reasoning.encrypted_content\"],\n\t\tprompt_cache_key: options?.sessionId,\n\t\ttool_choice: \"auto\",\n\t\tparallel_tool_calls: true,\n\t};\n\n\tif (options?.temperature !== undefined) {\n\t\tbody.temperature = options.temperature;\n\t}\n\n\tif (context.tools) {\n\t\tbody.tools = convertResponsesTools(context.tools, { strict: null });\n\t}\n\n\tif (options?.reasoningEffort !== undefined) {\n\t\tbody.reasoning = {\n\t\t\teffort: clampReasoningEffort(model.id, options.reasoningEffort),\n\t\t\tsummary: options.reasoningSummary ?? \"auto\",\n\t\t};\n\t}\n\n\treturn body;\n}\n\nfunction clampReasoningEffort(modelId: string, effort: string): string {\n\tconst id = modelId.includes(\"/\") ? modelId.split(\"/\").pop()! : modelId;\n\tif ((id.startsWith(\"gpt-5.2\") || id.startsWith(\"gpt-5.3\") || id.startsWith(\"gpt-5.4\")) && effort === \"minimal\")\n\t\treturn \"low\";\n\tif (id === \"gpt-5.1\" && effort === \"xhigh\") return \"high\";\n\tif (id === \"gpt-5.1-codex-mini\") return effort === \"high\" || effort === \"xhigh\" ? \"high\" : \"medium\";\n\treturn effort;\n}\n\nfunction resolveCodexUrl(baseUrl?: string): string {\n\tconst raw = baseUrl && baseUrl.trim().length > 0 ? baseUrl : DEFAULT_CODEX_BASE_URL;\n\tconst normalized = raw.replace(/\\/+$/, \"\");\n\tif (normalized.endsWith(\"/codex/responses\")) return normalized;\n\tif (normalized.endsWith(\"/codex\")) return `${normalized}/responses`;\n\treturn `${normalized}/codex/responses`;\n}\n\nfunction resolveCodexWebSocketUrl(baseUrl?: string): string {\n\tconst url = new URL(resolveCodexUrl(baseUrl));\n\tif (url.protocol === \"https:\") url.protocol = \"wss:\";\n\tif (url.protocol === \"http:\") url.protocol = \"ws:\";\n\treturn url.toString();\n}\n\n// ============================================================================\n// Response Processing\n// ============================================================================\n\nasync function processStream(\n\tresponse: Response,\n\toutput: AssistantMessage,\n\tstream: AssistantMessageEventStream,\n\tmodel: Model<\"openai-codex-responses\">,\n): Promise<void> {\n\tawait processResponsesStream(mapCodexEvents(parseSSE(response)), output, stream, model);\n}\n\nasync function* mapCodexEvents(events: AsyncIterable<Record<string, unknown>>): AsyncGenerator<ResponseStreamEvent> {\n\tfor await (const event of events) {\n\t\tconst type = typeof event.type === \"string\" ? event.type : undefined;\n\t\tif (!type) continue;\n\n\t\tif (type === \"error\") {\n\t\t\tconst code = (event as { code?: string }).code || \"\";\n\t\t\tconst message = (event as { message?: string }).message || \"\";\n\t\t\tthrow new Error(`Codex error: ${message || code || JSON.stringify(event)}`);\n\t\t}\n\n\t\tif (type === \"response.failed\") {\n\t\t\tconst msg = (event as { response?: { error?: { message?: string } } }).response?.error?.message;\n\t\t\tthrow new Error(msg || \"Codex response failed\");\n\t\t}\n\n\t\tif (type === \"response.done\" || type === \"response.completed\" || type === \"response.incomplete\") {\n\t\t\tconst response = (event as { response?: { status?: unknown } }).response;\n\t\t\tconst normalizedResponse = response\n\t\t\t\t? { ...response, status: normalizeCodexStatus(response.status) }\n\t\t\t\t: response;\n\t\t\tyield { ...event, type: \"response.completed\", response: normalizedResponse } as ResponseStreamEvent;\n\t\t\treturn;\n\t\t}\n\n\t\tyield event as unknown as ResponseStreamEvent;\n\t}\n}\n\nfunction normalizeCodexStatus(status: unknown): CodexResponseStatus | undefined {\n\tif (typeof status !== \"string\") return undefined;\n\treturn CODEX_RESPONSE_STATUSES.has(status as CodexResponseStatus) ? (status as CodexResponseStatus) : undefined;\n}\n\n// ============================================================================\n// SSE Parsing\n// ============================================================================\n\nasync function* parseSSE(response: Response): AsyncGenerator<Record<string, unknown>> {\n\tif (!response.body) return;\n\n\tconst reader = response.body.getReader();\n\tconst decoder = new TextDecoder();\n\tlet buffer = \"\";\n\n\ttry {\n\t\twhile (true) {\n\t\t\tconst { done, value } = await reader.read();\n\t\t\tif (done) break;\n\t\t\tbuffer += decoder.decode(value, { stream: true });\n\n\t\t\tlet idx = buffer.indexOf(\"\\n\\n\");\n\t\t\twhile (idx !== -1) {\n\t\t\t\tconst chunk = buffer.slice(0, idx);\n\t\t\t\tbuffer = buffer.slice(idx + 2);\n\n\t\t\t\tconst dataLines = chunk\n\t\t\t\t\t.split(\"\\n\")\n\t\t\t\t\t.filter((l) => l.startsWith(\"data:\"))\n\t\t\t\t\t.map((l) => l.slice(5).trim());\n\t\t\t\tif (dataLines.length > 0) {\n\t\t\t\t\tconst data = dataLines.join(\"\\n\").trim();\n\t\t\t\t\tif (data && data !== \"[DONE]\") {\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tyield JSON.parse(data);\n\t\t\t\t\t\t} catch {}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tidx = buffer.indexOf(\"\\n\\n\");\n\t\t\t}\n\t\t}\n\t} finally {\n\t\ttry {\n\t\t\tawait reader.cancel();\n\t\t} catch {}\n\t\ttry {\n\t\t\treader.releaseLock();\n\t\t} catch {}\n\t}\n}\n\n// ============================================================================\n// WebSocket Parsing\n// ============================================================================\n\nconst OPENAI_BETA_RESPONSES_WEBSOCKETS = \"responses_websockets=2026-02-06\";\nconst SESSION_WEBSOCKET_CACHE_TTL_MS = 5 * 60 * 1000;\n\ntype WebSocketEventType = \"open\" | \"message\" | \"error\" | \"close\";\ntype WebSocketListener = (event: unknown) => void;\n\ninterface WebSocketLike {\n\tclose(code?: number, reason?: string): void;\n\tsend(data: string): void;\n\taddEventListener(type: WebSocketEventType, listener: WebSocketListener): void;\n\tremoveEventListener(type: WebSocketEventType, listener: WebSocketListener): void;\n}\n\ninterface CachedWebSocketConnection {\n\tsocket: WebSocketLike;\n\tbusy: boolean;\n\tidleTimer?: ReturnType<typeof setTimeout>;\n}\n\nconst websocketSessionCache = new Map<string, CachedWebSocketConnection>();\n\ntype WebSocketConstructor = new (\n\turl: string,\n\tprotocols?: string | string[] | { headers?: Record<string, string> },\n) => WebSocketLike;\n\nfunction getWebSocketConstructor(): WebSocketConstructor | null {\n\tconst ctor = (globalThis as { WebSocket?: unknown }).WebSocket;\n\tif (typeof ctor !== \"function\") return null;\n\treturn ctor as unknown as WebSocketConstructor;\n}\n\nfunction headersToRecord(headers: Headers): Record<string, string> {\n\tconst out: Record<string, string> = {};\n\tfor (const [key, value] of headers.entries()) {\n\t\tout[key] = value;\n\t}\n\treturn out;\n}\n\nfunction getWebSocketReadyState(socket: WebSocketLike): number | undefined {\n\tconst readyState = (socket as { readyState?: unknown }).readyState;\n\treturn typeof readyState === \"number\" ? readyState : undefined;\n}\n\nfunction isWebSocketReusable(socket: WebSocketLike): boolean {\n\tconst readyState = getWebSocketReadyState(socket);\n\t// If readyState is unavailable, assume the runtime keeps it open/reusable.\n\treturn readyState === undefined || readyState === 1;\n}\n\nfunction closeWebSocketSilently(socket: WebSocketLike, code = 1000, reason = \"done\"): void {\n\ttry {\n\t\tsocket.close(code, reason);\n\t} catch {}\n}\n\nfunction scheduleSessionWebSocketExpiry(sessionId: string, entry: CachedWebSocketConnection): void {\n\tif (entry.idleTimer) {\n\t\tclearTimeout(entry.idleTimer);\n\t}\n\tentry.idleTimer = setTimeout(() => {\n\t\tif (entry.busy) return;\n\t\tcloseWebSocketSilently(entry.socket, 1000, \"idle_timeout\");\n\t\twebsocketSessionCache.delete(sessionId);\n\t}, SESSION_WEBSOCKET_CACHE_TTL_MS);\n}\n\nasync function connectWebSocket(url: string, headers: Headers, signal?: AbortSignal): Promise<WebSocketLike> {\n\tconst WebSocketCtor = getWebSocketConstructor();\n\tif (!WebSocketCtor) {\n\t\tthrow new Error(\"WebSocket transport is not available in this runtime\");\n\t}\n\n\tconst wsHeaders = headersToRecord(headers);\n\tdelete wsHeaders[\"OpenAI-Beta\"];\n\n\treturn new Promise<WebSocketLike>((resolve, reject) => {\n\t\tlet settled = false;\n\t\tlet socket: WebSocketLike;\n\n\t\ttry {\n\t\t\tsocket = new WebSocketCtor(url, { headers: wsHeaders });\n\t\t} catch (error) {\n\t\t\treject(error instanceof Error ? error : new Error(String(error)));\n\t\t\treturn;\n\t\t}\n\n\t\tconst onOpen: WebSocketListener = () => {\n\t\t\tif (settled) return;\n\t\t\tsettled = true;\n\t\t\tcleanup();\n\t\t\tresolve(socket);\n\t\t};\n\t\tconst onError: WebSocketListener = (event) => {\n\t\t\tconst error = extractWebSocketError(event);\n\t\t\tif (settled) return;\n\t\t\tsettled = true;\n\t\t\tcleanup();\n\t\t\treject(error);\n\t\t};\n\t\tconst onClose: WebSocketListener = (event) => {\n\t\t\tconst error = extractWebSocketCloseError(event);\n\t\t\tif (settled) return;\n\t\t\tsettled = true;\n\t\t\tcleanup();\n\t\t\treject(error);\n\t\t};\n\t\tconst onAbort = () => {\n\t\t\tif (settled) return;\n\t\t\tsettled = true;\n\t\t\tcleanup();\n\t\t\tsocket.close(1000, \"aborted\");\n\t\t\treject(new Error(\"Request was aborted\"));\n\t\t};\n\n\t\tconst cleanup = () => {\n\t\t\tsocket.removeEventListener(\"open\", onOpen);\n\t\t\tsocket.removeEventListener(\"error\", onError);\n\t\t\tsocket.removeEventListener(\"close\", onClose);\n\t\t\tsignal?.removeEventListener(\"abort\", onAbort);\n\t\t};\n\n\t\tsocket.addEventListener(\"open\", onOpen);\n\t\tsocket.addEventListener(\"error\", onError);\n\t\tsocket.addEventListener(\"close\", onClose);\n\t\tsignal?.addEventListener(\"abort\", onAbort);\n\t});\n}\n\nasync function acquireWebSocket(\n\turl: string,\n\theaders: Headers,\n\tsessionId: string | undefined,\n\tsignal?: AbortSignal,\n): Promise<{ socket: WebSocketLike; release: (options?: { keep?: boolean }) => void }> {\n\tif (!sessionId) {\n\t\tconst socket = await connectWebSocket(url, headers, signal);\n\t\treturn {\n\t\t\tsocket,\n\t\t\trelease: ({ keep } = {}) => {\n\t\t\t\tif (keep === false) {\n\t\t\t\t\tcloseWebSocketSilently(socket);\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t\tcloseWebSocketSilently(socket);\n\t\t\t},\n\t\t};\n\t}\n\n\tconst cached = websocketSessionCache.get(sessionId);\n\tif (cached) {\n\t\tif (cached.idleTimer) {\n\t\t\tclearTimeout(cached.idleTimer);\n\t\t\tcached.idleTimer = undefined;\n\t\t}\n\t\tif (!cached.busy && isWebSocketReusable(cached.socket)) {\n\t\t\tcached.busy = true;\n\t\t\treturn {\n\t\t\t\tsocket: cached.socket,\n\t\t\t\trelease: ({ keep } = {}) => {\n\t\t\t\t\tif (!keep || !isWebSocketReusable(cached.socket)) {\n\t\t\t\t\t\tcloseWebSocketSilently(cached.socket);\n\t\t\t\t\t\twebsocketSessionCache.delete(sessionId);\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t\tcached.busy = false;\n\t\t\t\t\tscheduleSessionWebSocketExpiry(sessionId, cached);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t\tif (cached.busy) {\n\t\t\tconst socket = await connectWebSocket(url, headers, signal);\n\t\t\treturn {\n\t\t\t\tsocket,\n\t\t\t\trelease: () => {\n\t\t\t\t\tcloseWebSocketSilently(socket);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t\tif (!isWebSocketReusable(cached.socket)) {\n\t\t\tcloseWebSocketSilently(cached.socket);\n\t\t\twebsocketSessionCache.delete(sessionId);\n\t\t}\n\t}\n\n\tconst socket = await connectWebSocket(url, headers, signal);\n\tconst entry: CachedWebSocketConnection = { socket, busy: true };\n\twebsocketSessionCache.set(sessionId, entry);\n\treturn {\n\t\tsocket,\n\t\trelease: ({ keep } = {}) => {\n\t\t\tif (!keep || !isWebSocketReusable(entry.socket)) {\n\t\t\t\tcloseWebSocketSilently(entry.socket);\n\t\t\t\tif (entry.idleTimer) clearTimeout(entry.idleTimer);\n\t\t\t\tif (websocketSessionCache.get(sessionId) === entry) {\n\t\t\t\t\twebsocketSessionCache.delete(sessionId);\n\t\t\t\t}\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tentry.busy = false;\n\t\t\tscheduleSessionWebSocketExpiry(sessionId, entry);\n\t\t},\n\t};\n}\n\nfunction extractWebSocketError(event: unknown): Error {\n\tif (event && typeof event === \"object\" && \"message\" in event) {\n\t\tconst message = (event as { message?: unknown }).message;\n\t\tif (typeof message === \"string\" && message.length > 0) {\n\t\t\treturn new Error(message);\n\t\t}\n\t}\n\treturn new Error(\"WebSocket error\");\n}\n\nfunction extractWebSocketCloseError(event: unknown): Error {\n\tif (event && typeof event === \"object\") {\n\t\tconst code = \"code\" in event ? (event as { code?: unknown }).code : undefined;\n\t\tconst reason = \"reason\" in event ? (event as { reason?: unknown }).reason : undefined;\n\t\tconst codeText = typeof code === \"number\" ? ` ${code}` : \"\";\n\t\tconst reasonText = typeof reason === \"string\" && reason.length > 0 ? ` ${reason}` : \"\";\n\t\treturn new Error(`WebSocket closed${codeText}${reasonText}`.trim());\n\t}\n\treturn new Error(\"WebSocket closed\");\n}\n\nasync function decodeWebSocketData(data: unknown): Promise<string | null> {\n\tif (typeof data === \"string\") return data;\n\tif (data instanceof ArrayBuffer) {\n\t\treturn new TextDecoder().decode(new Uint8Array(data));\n\t}\n\tif (ArrayBuffer.isView(data)) {\n\t\tconst view = data as ArrayBufferView;\n\t\treturn new TextDecoder().decode(new Uint8Array(view.buffer, view.byteOffset, view.byteLength));\n\t}\n\tif (data && typeof data === \"object\" && \"arrayBuffer\" in data) {\n\t\tconst blobLike = data as { arrayBuffer: () => Promise<ArrayBuffer> };\n\t\tconst arrayBuffer = await blobLike.arrayBuffer();\n\t\treturn new TextDecoder().decode(new Uint8Array(arrayBuffer));\n\t}\n\treturn null;\n}\n\nasync function* parseWebSocket(socket: WebSocketLike, signal?: AbortSignal): AsyncGenerator<Record<string, unknown>> {\n\tconst queue: Record<string, unknown>[] = [];\n\tlet pending: (() => void) | null = null;\n\tlet done = false;\n\tlet failed: Error | null = null;\n\tlet sawCompletion = false;\n\n\tconst wake = () => {\n\t\tif (!pending) return;\n\t\tconst resolve = pending;\n\t\tpending = null;\n\t\tresolve();\n\t};\n\n\tconst onMessage: WebSocketListener = (event) => {\n\t\tvoid (async () => {\n\t\t\tif (!event || typeof event !== \"object\" || !(\"data\" in event)) return;\n\t\t\tconst text = await decodeWebSocketData((event as { data?: unknown }).data);\n\t\t\tif (!text) return;\n\t\t\ttry {\n\t\t\t\tconst parsed = JSON.parse(text) as Record<string, unknown>;\n\t\t\t\tconst type = typeof parsed.type === \"string\" ? parsed.type : \"\";\n\t\t\t\tif (type === \"response.completed\" || type === \"response.done\" || type === \"response.incomplete\") {\n\t\t\t\t\tsawCompletion = true;\n\t\t\t\t\tdone = true;\n\t\t\t\t}\n\t\t\t\tqueue.push(parsed);\n\t\t\t\twake();\n\t\t\t} catch {}\n\t\t})();\n\t};\n\n\tconst onError: WebSocketListener = (event) => {\n\t\tfailed = extractWebSocketError(event);\n\t\tdone = true;\n\t\twake();\n\t};\n\n\tconst onClose: WebSocketListener = (event) => {\n\t\tif (sawCompletion) {\n\t\t\tdone = true;\n\t\t\twake();\n\t\t\treturn;\n\t\t}\n\t\tif (!failed) {\n\t\t\tfailed = extractWebSocketCloseError(event);\n\t\t}\n\t\tdone = true;\n\t\twake();\n\t};\n\n\tconst onAbort = () => {\n\t\tfailed = new Error(\"Request was aborted\");\n\t\tdone = true;\n\t\twake();\n\t};\n\n\tsocket.addEventListener(\"message\", onMessage);\n\tsocket.addEventListener(\"error\", onError);\n\tsocket.addEventListener(\"close\", onClose);\n\tsignal?.addEventListener(\"abort\", onAbort);\n\n\ttry {\n\t\twhile (true) {\n\t\t\tif (signal?.aborted) {\n\t\t\t\tthrow new Error(\"Request was aborted\");\n\t\t\t}\n\t\t\tif (queue.length > 0) {\n\t\t\t\tyield queue.shift()!;\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tif (done) break;\n\t\t\tawait new Promise<void>((resolve) => {\n\t\t\t\tpending = resolve;\n\t\t\t});\n\t\t}\n\n\t\tif (failed) {\n\t\t\tthrow failed;\n\t\t}\n\t\tif (!sawCompletion) {\n\t\t\tthrow new Error(\"WebSocket stream closed before response.completed\");\n\t\t}\n\t} finally {\n\t\tsocket.removeEventListener(\"message\", onMessage);\n\t\tsocket.removeEventListener(\"error\", onError);\n\t\tsocket.removeEventListener(\"close\", onClose);\n\t\tsignal?.removeEventListener(\"abort\", onAbort);\n\t}\n}\n\nasync function processWebSocketStream(\n\turl: string,\n\tbody: RequestBody,\n\theaders: Headers,\n\toutput: AssistantMessage,\n\tstream: AssistantMessageEventStream,\n\tmodel: Model<\"openai-codex-responses\">,\n\tonStart: () => void,\n\toptions?: OpenAICodexResponsesOptions,\n): Promise<void> {\n\tconst { socket, release } = await acquireWebSocket(url, headers, options?.sessionId, options?.signal);\n\tlet keepConnection = true;\n\ttry {\n\t\tsocket.send(JSON.stringify({ type: \"response.create\", ...body }));\n\t\tonStart();\n\t\tstream.push({ type: \"start\", partial: output });\n\t\tawait processResponsesStream(mapCodexEvents(parseWebSocket(socket, options?.signal)), output, stream, model);\n\t\tif (options?.signal?.aborted) {\n\t\t\tkeepConnection = false;\n\t\t}\n\t} catch (error) {\n\t\tkeepConnection = false;\n\t\tthrow error;\n\t} finally {\n\t\trelease({ keep: keepConnection });\n\t}\n}\n\n// ============================================================================\n// Error Handling\n// ============================================================================\n\nasync function parseErrorResponse(response: Response): Promise<{ message: string; friendlyMessage?: string }> {\n\tconst raw = await response.text();\n\tlet message = raw || response.statusText || \"Request failed\";\n\tlet friendlyMessage: string | undefined;\n\n\ttry {\n\t\tconst parsed = JSON.parse(raw) as {\n\t\t\terror?: { code?: string; type?: string; message?: string; plan_type?: string; resets_at?: number };\n\t\t};\n\t\tconst err = parsed?.error;\n\t\tif (err) {\n\t\t\tconst code = err.code || err.type || \"\";\n\t\t\tif (/usage_limit_reached|usage_not_included|rate_limit_exceeded/i.test(code) || response.status === 429) {\n\t\t\t\tconst plan = err.plan_type ? ` (${err.plan_type.toLowerCase()} plan)` : \"\";\n\t\t\t\tconst mins = err.resets_at\n\t\t\t\t\t? Math.max(0, Math.round((err.resets_at * 1000 - Date.now()) / 60000))\n\t\t\t\t\t: undefined;\n\t\t\t\tconst when = mins !== undefined ? ` Try again in ~${mins} min.` : \"\";\n\t\t\t\tfriendlyMessage = `You have hit your ChatGPT usage limit${plan}.${when}`.trim();\n\t\t\t}\n\t\t\tmessage = err.message || friendlyMessage || message;\n\t\t}\n\t} catch {}\n\n\treturn { message, friendlyMessage };\n}\n\n// ============================================================================\n// Auth & Headers\n// ============================================================================\n\nfunction extractAccountId(token: string): string {\n\ttry {\n\t\tconst parts = token.split(\".\");\n\t\tif (parts.length !== 3) throw new Error(\"Invalid token\");\n\t\tconst payload = JSON.parse(atob(parts[1]));\n\t\tconst accountId = payload?.[JWT_CLAIM_PATH]?.chatgpt_account_id;\n\t\tif (!accountId) throw new Error(\"No account ID in token\");\n\t\treturn accountId;\n\t} catch {\n\t\tthrow new Error(\"Failed to extract accountId from token\");\n\t}\n}\n\nfunction createCodexRequestId(): string {\n\tif (typeof globalThis.crypto?.randomUUID === \"function\") {\n\t\treturn globalThis.crypto.randomUUID();\n\t}\n\treturn `codex_${Date.now()}_${Math.random().toString(36).slice(2, 10)}`;\n}\n\nfunction buildBaseCodexHeaders(\n\tinitHeaders: Record<string, string> | undefined,\n\tadditionalHeaders: Record<string, string> | undefined,\n\taccountId: string,\n\ttoken: string,\n): Headers {\n\tconst headers = new Headers(initHeaders);\n\tfor (const [key, value] of Object.entries(additionalHeaders || {})) {\n\t\theaders.set(key, value);\n\t}\n\theaders.set(\"Authorization\", `Bearer ${token}`);\n\theaders.set(\"chatgpt-account-id\", accountId);\n\theaders.set(\"originator\", \"pi\");\n\tconst userAgent = _os ? `pi (${_os.platform()} ${_os.release()}; ${_os.arch()})` : \"pi (browser)\";\n\theaders.set(\"User-Agent\", userAgent);\n\treturn headers;\n}\n\nfunction buildSSEHeaders(\n\tinitHeaders: Record<string, string> | undefined,\n\tadditionalHeaders: Record<string, string> | undefined,\n\taccountId: string,\n\ttoken: string,\n\tsessionId?: string,\n): Headers {\n\tconst headers = buildBaseCodexHeaders(initHeaders, additionalHeaders, accountId, token);\n\theaders.set(\"OpenAI-Beta\", \"responses=experimental\");\n\theaders.set(\"accept\", \"text/event-stream\");\n\theaders.set(\"content-type\", \"application/json\");\n\n\tif (sessionId) {\n\t\theaders.set(\"session_id\", sessionId);\n\t}\n\n\treturn headers;\n}\n\nfunction buildWebSocketHeaders(\n\tinitHeaders: Record<string, string> | undefined,\n\tadditionalHeaders: Record<string, string> | undefined,\n\taccountId: string,\n\ttoken: string,\n\trequestId: string,\n): Headers {\n\tconst headers = buildBaseCodexHeaders(initHeaders, additionalHeaders, accountId, token);\n\theaders.delete(\"accept\");\n\theaders.delete(\"content-type\");\n\theaders.delete(\"OpenAI-Beta\");\n\theaders.delete(\"openai-beta\");\n\theaders.set(\"OpenAI-Beta\", OPENAI_BETA_RESPONSES_WEBSOCKETS);\n\theaders.set(\"x-client-request-id\", requestId);\n\theaders.set(\"session_id\", requestId);\n\treturn headers;\n}\n"]}