import { k as AgentHandlers, n as AgentMessage, p as AgentMessageContext, M as MessageContent, D as ToolApprovalDecision, b as AgentActionContext, R as ReplyHandle, A as Agent, l as AgentHistoryEntry, j as AgentHandlerContext } from '../agent.types-DFLG1_vb.js';
import { streamText, generateText, ModelMessage } from 'ai';
import { A as Awaitable } from '../util.types-DaFfsxgy.js';
import 'chat';

type AiSdkStreamResult = Awaited<ReturnType<typeof streamText>>;
type AiSdkGenerateResult = Awaited<ReturnType<typeof generateText>>;
type AiSdkResult = AiSdkStreamResult | AiSdkGenerateResult;
/**
 * Handlers for `@novu/framework/ai-sdk` agents.
 *
 * Extends {@link AgentHandlers}: same events and config (`toolApproval`, etc.),
 * but `onMessage` and `onToolApproval` may return an AI SDK result for automatic delivery.
 */
type AiSdkAgentHandlers = Omit<AgentHandlers, 'onMessage' | 'onToolApproval'> & {
    onMessage: (message: AgentMessage, ctx: AgentMessageContext) => Awaitable<MessageContent | AiSdkResult | void>;
    /**
     * Optional. Auto-resumes `onMessage` after approve/deny unless you return an
     * `AiSdkResult` to drive the resume yourself.
     */
    onToolApproval?: (decision: ToolApprovalDecision, ctx: AgentActionContext) => Awaitable<MessageContent | AiSdkResult | ReplyHandle | void>;
    onError?: AgentHandlers['onError'];
};

type AiSdkMessageHandler = AiSdkAgentHandlers['onMessage'];
declare function agent(id: string, handlers: AiSdkMessageHandler | AiSdkAgentHandlers): Agent;

/**
 * Convert conversation context into AI SDK `ModelMessage[]` for `streamText` / `generateText`.
 *
 * Pass `ctx` to prepend `ctx.notification` as an assistant row. Pass `ctx.history` to skip that
 * injection (e.g. after `isFromWorkflow`). History already includes the current inbound message.
 *
 * For http/localhost attachment URLs (e.g. LocalStack), wrap the result in
 * `hydrateUnreachableAttachmentUrls` before passing it to `generateText`.
 *
 * Pass the system prompt via the top-level `instructions` option of `streamText` /
 * `generateText`. AI SDK 7 rejects `system` messages inside the `messages` array by default,
 * so this helper never injects one.
 */
declare function toModelMessages(history: AgentHistoryEntry[]): ModelMessage[];
declare function toModelMessages(ctx: Pick<AgentHandlerContext, 'history' | 'notification'>): ModelMessage[];

/**
 * Replace attachment URLs a hosted model cannot fetch with inline bytes.
 * HTTPS public URLs are left as-is so production signed S3 links stay URL-based.
 * Over-budget downloads are omitted so one large file cannot abort the turn.
 */
declare function hydrateUnreachableAttachmentUrls(messages: ModelMessage[]): Promise<ModelMessage[]>;

export { type AiSdkAgentHandlers, agent, hydrateUnreachableAttachmentUrls, toModelMessages };