import type { UserContent } from "ai";
import type { StandardJSONSchemaV1 } from "#compiled/@standard-schema/spec/index.js";
import type { MessageStreamEvent } from "#protocol/message.js";
import type { CancelTurnResult } from "#protocol/cancel-turn.js";
import type { ClearStatus } from "#protocol/clear-session.js";
import type { CompactStatus } from "#protocol/compact-session.js";
import type { ResetStatus } from "#protocol/reset-session.js";
import type { TurnPolicy, TaskDeliveryPolicy } from "#channel/types.js";
import type { InputRequest, InputResponse } from "#shared/input.js";
import type { JsonObject } from "#shared/json.js";
export type { HealthResult } from "#client/health-schema.js";
export type { AgentInfoChannelEntry, AgentInfoChannels, AgentInfoConnectionEntry, AgentInfoDynamicResolverEntry, AgentInfoEntry, AgentInfoHookEntry, AgentInfoInstructions, AgentInfoInstructionsEntry, AgentInfoMemoryEntry, AgentInfoResult, AgentInfoRemoteAgentEntry, AgentInfoSandboxEntry, AgentInfoScheduleEntry, AgentInfoSkillEntry, AgentInfoSource, AgentInfoSubagentEntry, AgentInfoToolEntry, AgentInfoTools, } from "./agent-info-schema.js";
/**
 * Static credential value or per-request credential resolver.
 */
export type TokenValue = string | (() => string | Promise<string>);
/**
 * Static custom-headers map or per-request resolver.
 *
 * When a function is provided, it is invoked before every HTTP call so
 * callers can return short-lived values (e.g. refreshed bypass tokens)
 * without rebuilding the client.
 */
export type HeadersValue = Readonly<Record<string, string>> | (() => Readonly<Record<string, string>> | Promise<Readonly<Record<string, string>>>);
/**
 * Authentication configuration for the client.
 */
export type ClientAuth = {
    readonly basic: {
        readonly username: string;
        readonly password: TokenValue;
    };
} | {
    readonly bearer: TokenValue;
} | {
    readonly vercelOidc: {
        readonly token: TokenValue;
    };
};
/**
 * Vercel header that presents a trusted OIDC token as proof the caller is
 * authorized for a protected deployment. The client emits it alongside
 * `Authorization` for the {@link ClientAuth} `vercelOidc` variant.
 */
export declare const VERCEL_TRUSTED_OIDC_IDP_TOKEN_HEADER = "x-vercel-trusted-oidc-idp-token";
/** Redirect modes supported by the configured fetch implementation. */
export type ClientRedirectPolicy = NonNullable<RequestInit["redirect"]>;
/**
 * Configuration for creating a new {@link Client}.
 */
export interface ClientOptions {
    /**
     * Base URL of the eve agent server. Query parameters are included on every
     * request; request-specific parameters override parameters with the same name.
     */
    readonly host: string;
    /**
     * Authentication configuration. The client resolves credentials before each
     * request, so token-refresh callbacks are called on every HTTP call.
     */
    readonly auth?: ClientAuth;
    /**
     * Custom headers sent with every request. Pass a function to resolve
     * the headers fresh for each request (useful for short-lived tokens
     * that need to be refreshed alongside the bearer credential).
     */
    readonly headers?: HeadersValue;
    /**
     * Redirect policy for every request, including streams. Overrides a
     * per-request `RequestInit.redirect`. Credential-bearing clients should use
     * `"manual"` or `"error"` so custom auth headers can't follow a cross-origin
     * redirect.
     */
    readonly redirect?: ClientRedirectPolicy;
}
/**
 * Input object for creating a client session. The first message is required.
 */
export interface SendTurnInput<TOutput = unknown> extends SendTurnOptions<TOutput> {
    readonly message: string | UserContent;
}
/** Request options for creating a conversation session before its first turn. */
export interface CreateSessionOptions {
    /** Abort signal for cancelling the creation request. */
    readonly signal?: AbortSignal;
    /** Additional headers for this request only. */
    readonly headers?: Readonly<Record<string, string>>;
}
/** Options shared by message sends and HITL responses on a client session. */
export interface SendTurnOptions<TOutput = unknown> {
    /** Policy for a message sent while the fixed session has an active turn. */
    readonly turnPolicy?: TurnPolicy;
    /** Updates the session’s background task reporting policy. Omit to preserve it. */
    readonly taskDeliveryPolicy?: TaskDeliveryPolicy;
    /**
     * Ephemeral client/page context for the current turn.
     *
     * Strings are rendered as user-role model context messages. Objects are
     * JSON-serialized into one user-role model context message. Client context
     * rides along with a message or HITL response; it does not dispatch a turn by
     * itself, remains available to every model call in the turn, and is never
     * persisted to durable session history or exposed to later turns.
     */
    readonly clientContext?: string | readonly string[] | JsonObject;
    /**
     * Optional schema the harness must satisfy before this turn terminates.
     *
     * The client lowers Standard Schema implementations (Zod, Valibot,
     * ArkType, etc.) to JSON Schema before sending the request. The server is
     * authoritative for validation; {@link MessageResult.data} is typed to this
     * schema's output type and is not revalidated client-side.
     */
    readonly outputSchema?: StandardJSONSchemaV1<unknown, TOutput> | JsonObject;
    /**
     * Reconnection policy for the response event stream. Omit to use the default
     * policy, or pass `{ reconnect: false }` when the caller owns cursor recovery.
     */
    readonly streamReconnectPolicy?: StreamReconnectPolicy;
    /**
     * Abort signal for cancelling the request.
     */
    readonly signal?: AbortSignal;
    /**
     * Additional headers for this request only. These override same-name
     * client-level headers, including headers generated by `ClientOptions.auth`.
     */
    readonly headers?: Readonly<Record<string, string>>;
}
/** Options for answering pending HITL input requests on a client session. */
export type RespondTurnOptions<TOutput = unknown> = Omit<SendTurnOptions<TOutput>, "taskDeliveryPolicy">;
/** @internal Transport envelope used by stores and command adapters. */
export type SendTurnPayload<TOutput = unknown> = (SendTurnOptions<TOutput> & {
    readonly inputResponses?: never;
    readonly message: string | UserContent;
}) | (RespondTurnOptions<TOutput> & {
    readonly inputResponses: readonly InputResponse[];
    readonly message?: never;
});
/** Retry and backoff settings for one kind of stream reconnection. */
export interface StreamReconnectRetryPolicy {
    /** Initial delay before retrying, in milliseconds. */
    readonly baseDelayMs?: number;
    /** Maximum number of attempts governed by this retry policy. */
    readonly maxAttempts?: number;
    /** Maximum delay between retries, in milliseconds. */
    readonly maxDelayMs?: number;
}
/** Configurable policy used when automatic stream reconnection is enabled. */
export interface ResolvedStreamReconnectPolicy {
    /** Retry policy for opening an HTTP stream connection. */
    readonly streamOpenReconnectPolicy?: StreamReconnectRetryPolicy;
    /** Retry policy for reconnecting streams that make no progress. */
    readonly streamIdleReconnectPolicy?: StreamReconnectRetryPolicy;
    /** HTTP response statuses that may be retried while opening a stream. */
    readonly retryableErrorStatuses?: readonly number[];
}
/** Automatic stream reconnection configuration. */
export type StreamReconnectPolicy = ResolvedStreamReconnectPolicy | {
    readonly reconnect: false;
};
/**
 * Options for {@link ClientSession.stream}.
 */
export interface StreamOptions {
    /**
     * Reconnection policy for the event stream. Omit to use the default policy,
     * or pass `{ reconnect: false }` when the caller owns cursor recovery.
     */
    readonly streamReconnectPolicy?: StreamReconnectPolicy;
    /**
     * Absolute event index to start from. Negative values read relative to the
     * current tail (`-1` starts at the latest event). Relative-tail streams do
     * not reconnect automatically because their absolute cursor is unknown.
     */
    readonly startIndex?: number;
    /**
     * Follow the live stream after the durable tail (default). Pass `false`
     * for a bounded catch-up read: yields events until the cursor passes the
     * tail observed when the stream opened, then returns instead of
     * following. Requires a nonnegative start cursor.
     */
    readonly follow?: boolean;
    /**
     * Abort signal for cancelling the stream.
     */
    readonly signal?: AbortSignal;
}
/** Result of requesting cancellation for a client session's active turn. */
export type CancelSessionResult = CancelTurnResult;
/** Result of requesting a context clear for a client session. */
export type ClearResult = {
    /** Session whose clear request was queued. */
    readonly sessionId: string;
    readonly status: Extract<ClearStatus, "accepted">;
} | {
    /** The fixed session ID was unknown or no longer active. */
    readonly status: Extract<ClearStatus, "no_active_session">;
};
/** Result of requesting context compaction for a client session. */
export type CompactResult = {
    /** Session whose compaction request was queued. */
    readonly sessionId: string;
    readonly status: Extract<CompactStatus, "accepted">;
} | {
    /** The fixed session ID was unknown or no longer active. */
    readonly status: Extract<CompactStatus, "no_active_session">;
};
/** Result of terminally resetting a client session. */
export type ResetResult = {
    /** The prior session was terminally retired. */
    readonly previousSessionId: string;
    readonly status: Extract<ResetStatus, "reset">;
} | {
    /** The fixed session ID was unknown or no longer active. */
    readonly status: Extract<ResetStatus, "no_active_session">;
};
/**
 * Aggregated result of one message turn, returned by
 * {@link MessageResponse.result}.
 */
export interface MessageResult<TOutput = unknown> {
    /**
     * Final structured result emitted by the harness, when this turn requested
     * an output schema and the server fulfilled it.
     */
    readonly data: TOutput | undefined;
    /**
     * The final completed assistant message text, or `undefined` if no terminal
     * `message.completed` event was observed.
     */
    readonly message: string | undefined;
    /**
     * All events received during this turn.
     */
    readonly events: MessageStreamEvent[];
    /**
     * HITL input requests emitted during this turn.
     */
    readonly inputRequests: readonly InputRequest[];
    /**
     * The session ID for this turn. Always populated; the post-turn handler
     * rejects responses that do not assign a session id.
     */
    readonly sessionId: string;
    /**
     * How the turn ended.
     *
     * - `"completed"`: the session finished (`session.completed`).
     * - `"waiting"`: the session is parked for the next user message
     *   (`session.waiting`).
     * - `"failed"`: the session ended in a terminal failure (`session.failed`).
     */
    readonly status: "completed" | "failed" | "waiting";
}
/**
 * Response from the health endpoint.
 */
/**
 * Serializable cursor for one fixed, ID-addressed client session.
 */
export interface ClientSessionState {
    readonly sessionId: string;
    readonly streamIndex: number;
}
/**
 * Finite, cursor-consistent prefix of one durable session stream.
 */
export interface SessionSnapshot {
    /** Events from the start of the session through the durable tail observed when the read opened. */
    readonly events: readonly MessageStreamEvent[];
    /** Session cursor advanced exactly past {@link events}. */
    readonly session: ClientSessionState;
}