import { toSubscribeInjections } from './subscribe-injection.js';

const vercelAiConfig = [
  // Vercel AI v6: mirror the v7 native `ai:telemetry` channel by injecting
  // channels into the top-level entry points. `resolveLanguageModel` is wrapped
  // not to span it, but so the subscriber can monkey-patch `doGenerate`/
  // `doStream` on the returned model (the only way to span the model call,
  // which is an inline call with no injectable definition in `ai`).
  // `streamText` returns its result synchronously (streaming is lazy), so it's
  // `Sync`; the subscriber binds the span via `bindTracingChannelToSpan`, which
  // ends it when the (synchronous) call returns.
  // The majority of entrypoints are present in all versions we support
  ...vercelAiEntries(">=4.0.0 <7.0.0", "generateText", "generateText", "Async"),
  ...vercelAiEntries(">=4.0.0 <7.0.0", "streamText", "streamText", "Sync"),
  ...vercelAiEntries(">=4.0.0 <7.0.0", "generateObject", "generateObject", "Async"),
  ...vercelAiEntries(">=4.0.0 <7.0.0", "embed", "embed", "Async"),
  ...vercelAiEntries(">=4.0.0 <7.0.0", "embedMany", "embedMany", "Async"),
  // The following entry is only present in v5 and later
  ...vercelAiEntries(">=5.0.0 <7.0.0", "resolveLanguageModel", "resolveLanguageModel", "Sync"),
  // The following entry is only present in v6 and later
  ...vercelAiEntries(">=6.0.0 <7.0.0", "executeToolCall", "executeToolCall", "Async")
];
const vercelAiChannels = {
  // Vercel AI (`ai`): orchestrion injects these so the same channel-based
  // integration that consumes `ai`'s native `ai:telemetry` channel (v7) can
  // also instrument v4/v5/v6. Each maps to a top-level function in `ai`'s bundle.
  // All three versions share the same channel names (the subscriber is version-agnostic);
  // `VERCEL_AI_EXECUTE_TOOL_CALL` is v6-only (v4/v5 have no `executeToolCall` export) and
  // `VERCEL_AI_RESOLVE_LANGUAGE_MODEL` is v5/v6-only (v4 has no such chokepoint).
  VERCEL_AI_GENERATE_TEXT: "orchestrion:ai:generateText",
  VERCEL_AI_STREAM_TEXT: "orchestrion:ai:streamText",
  VERCEL_AI_GENERATE_OBJECT: "orchestrion:ai:generateObject",
  VERCEL_AI_EMBED: "orchestrion:ai:embed",
  VERCEL_AI_EMBED_MANY: "orchestrion:ai:embedMany",
  VERCEL_AI_EXECUTE_TOOL_CALL: "orchestrion:ai:executeToolCall",
  VERCEL_AI_RESOLVE_LANGUAGE_MODEL: "orchestrion:ai:resolveLanguageModel"
};
function vercelAiEntries(versionRange, channelName, functionName, kind) {
  return ["dist/index.js", "dist/index.mjs"].map((filePath) => ({
    channelName,
    module: { name: "ai", versionRange, filePath },
    functionQuery: { functionName, kind }
  }));
}
const vercelAiSubscribeInjection = toSubscribeInjections(vercelAiConfig);

export { vercelAiChannels, vercelAiConfig, vercelAiSubscribeInjection };
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