import type { ChatParams } from "../types";
import type { ZodType, ZodTypeDef } from "zod";
export type InvalidKind = "translation" | "styling";
export default abstract class ChatInterface {
    abstract startChat(params: ChatParams): void;
    abstract sendMessage(message: string, format?: ZodType<any, ZodTypeDef, any>): Promise<string>;
    abstract resetChatHistory(): void;
    abstract rollbackLastMessage(): void;
    /**
     * Record that the last translation was rejected, so the next
     * sendMessage call picks up the nag message in history.
     * Implementations choose whether to tag that message as System or
     * User — Anthropic, for example, only accepts alternating User /
     * Assistant messages, so it reuses User.
     */
    abstract signalInvalid(kind: InvalidKind): void;
    protected invalidMessage(kind: InvalidKind): string;
}