import type { MessageStatus, SimpleType } from '../x-chat';
import type { AbstractXRequestClass, XRequestOptions } from '../x-request';
export interface ChatProviderConfig<Input, Output, ChatMessage extends SimpleType = any> {
    request: AbstractXRequestClass<Input, Output, ChatMessage> | (() => AbstractXRequestClass<Input, Output, ChatMessage>);
}
export interface TransformMessage<ChatMessage extends SimpleType, Output> {
    originMessage?: ChatMessage;
    chunk: Output;
    chunks: Output[];
    status: MessageStatus;
    responseHeaders: Headers;
}
export default abstract class AbstractChatProvider<ChatMessage extends SimpleType, Input, Output> {
    private _request;
    private _getMessagesFn;
    private _originalCallbacks?;
    get request(): AbstractXRequestClass<Input, Output, ChatMessage>;
    constructor(config: ChatProviderConfig<Input, Output, ChatMessage>);
    /**
     * 转换onRequest传入的参数，你可以和Provider实例化时request配置中的params进行合并或者额外处理
     * @param requestParams 请求参数
     * @param options 请求配置，从Provider实例化时request配置中来
     */
    abstract transformParams(requestParams: Partial<Input>, options: XRequestOptions<Input, Output, ChatMessage>): Input;
    /**
     * 将onRequest传入的参数转换为本地（用户发送）的ChatMessage，用于消息渲染
     * @param requestParams onRequest传入的参数
     */
    abstract transformLocalMessage(requestParams: Partial<Input>): ChatMessage | ChatMessage[];
    /**
     * 可在更新返回数据时对messages做转换，同时会更新到messages
     * @param info
     */
    abstract transformMessage(info: TransformMessage<ChatMessage, Output>): ChatMessage;
    getMessages(): ChatMessage[];
    injectGetMessages(getMessages: () => ChatMessage[]): void;
    injectRequest({ onUpdate, onSuccess, onError, }: {
        onUpdate: (data: Output, responseHeaders: Headers) => any;
        onSuccess: (data: Output[], responseHeaders: Headers) => any;
        onError: (error: any, errorInfo?: any) => any;
    }): void;
}