import type { ErrorInfo, ServerEvent } from '@optima-chat/gateway-protocol';
import type { ChatStore, MidTurnSink } from '../store/chat-store.js';
import { GatewayClient } from '../client/gateway-client.js';
import { MidTurnCoordinator } from '../client/midturn-coordinator.js';
import type { OutboundQueue } from '../client/outbound-queue.js';
import type { ChatProviderProps } from '../types.js';
import type { StoreApi } from 'zustand/vanilla';
/**
 * Detect server `error` events meaning "the access token the SDK presented
 * has been rejected" — canonical `AUTH_TOKEN_INVALID` code, casing variants,
 * or a legacy server with no code but a recognizable message. Used by the
 * ChatProvider event handler to trigger Layer A token recovery (#54).
 */
export declare function isAuthExpiredSignal(error: ErrorInfo): boolean;
/**
 * ac#1021：把 `MidTurnCoordinator` 的依赖注入口接到真 store + 真 GatewayClient 上。
 *
 * `getClient` 是**惰性**的（读 `clientRef.current`）：coordinator 在 `useMemo` 里先于
 * `new GatewayClient` 创建，构造那一刻 client 还不存在。client 为 null 时三个 client 侧
 * 依赖各自退化成「发不出去 / 未武装 / 纪元 0」，submit 走 ④ 直发腿返 false，宿主照旧 throw。
 *
 * ⛔ 本函数**绝不写 store**：它在渲染期（`useMemo`）跑，而本 provider 里有一处裸
 * `store.subscribe`（restoring-timeout 对账），渲染期 set() 会同步把它拉起来。
 */
export declare function createMidTurnCoordinator(store: StoreApi<ChatStore>, getClient: () => Pick<GatewayClient, 'send' | 'isDeliveryArmed' | 'currentDeliveryEpoch'> | null): MidTurnCoordinator;
/** ac#1021：store 的两个会话收尾原语 → coordinator 的对应入口。 */
export declare const midTurnSinkFor: (coordinator: MidTurnCoordinator) => MidTurnSink;
/**
 * ac#1053 Plan B（spec Δ4 / Δ7）：provider 实际注册的 sink —— store 的两个会话收尾原语同时通知
 * 本地排队（`OutboundQueue`）与 coordinator。不新增 sink 方法：`settleStuckTurn(C,'escape_hatch')`
 * 的队列腿 = `onSettle`（清在途账），`removeConversation` 的队列腿 = `onConversationGone`。
 *
 * ⚠️ 逃生口腿里**队列先清是承重的**：B 档直发时若 C 上还有 A 档留下的 inflight 机器，那条已
 * `track()` 的消息被 coordinator T0 暂存为 held、尚未入账；逃生口时 coordinator drain 出它、经 R1
 * 入账 —— 它此刻真在飞。先 drain 再清，会把这个真在飞的 id 清掉。（gone 腿换序等价：
 * coordinator 先把 held 判 lost、drain 跳过。）
 * `midTurnSinkFor` 保留原签名与原行为（非公开 API，接线测试直接用它）。
 */
export declare const composedMidTurnSink: (coordinator: MidTurnCoordinator, queue: OutboundQueue) => MidTurnSink;
/**
 * <ChatProvider> — wires GatewayClient + ConversationAPI + Store together,
 * parses incoming ServerEvents into store mutations, and forwards selected
 * events to the consumer-supplied callbacks.
 */
export declare function ChatProvider(props: ChatProviderProps): React.ReactElement;
/**
 * Core event dispatch: parse → apply store mutations → forward to callbacks.
 * Exposed as a pure function so it can be unit-tested.
 */
export declare function handleServerEvent(event: ServerEvent, store: StoreApi<ChatStore>, props: ChatProviderProps): void;
//# sourceMappingURL=chat-provider.d.ts.map