import type { SimpleAction } from "@next-bricks/basic/actions";
import { type TextareaAutoResizeRef } from "@next-shared/form";
import type { CommandPayload } from "../interfaces";
import type { ChatCommand } from "../../data-providers/set-chat-command";
export declare const MAX_SHOWN_COMMANDS = 10;
export interface MentionPopover {
    style: React.CSSProperties;
    range: {
        start: number;
        end: number;
    };
    actions: ActionWithSubCommands[];
}
export type ActionWithSubCommands = SimpleAction & {
    key: string | number;
    subCommands?: Command[];
    payload?: CommandPayload;
};
export interface Command {
    label: string;
    value: string;
    groupKey?: string;
    groupLabel?: string;
    subCommands?: Command[];
    payload?: CommandPayload;
}
export interface AIEmployee {
    employeeId: string;
    name: string;
}
export interface UseChatMentionsParams {
    aiEmployees?: AIEmployee[];
    commands?: Command[];
    root: HTMLElement;
    hasFiles: boolean;
    /** @default "bottom" */
    placement?: "top" | "bottom";
}
export declare function useChatCompletions({ aiEmployees, commands: propCommands, root, hasFiles, placement, }: UseChatMentionsParams): {
    textareaRef: React.RefObject<TextareaAutoResizeRef>;
    valueRef: React.MutableRefObject<string>;
    value: string;
    setValue: React.Dispatch<React.SetStateAction<string>>;
    selectionRef: React.MutableRefObject<{
        start: number;
        end: number;
    } | null>;
    mentioned: string | null;
    mentionedText: string;
    mentionPopover: MentionPopover | null;
    mentionOverlay: React.CSSProperties[] | null;
    mentionActiveKeys: (string | number)[] | null;
    setInitialMention: React.Dispatch<React.SetStateAction<string | null>>;
    handleMention: (action: SimpleAction) => void;
    command: CommandPayload | null;
    commandText: string;
    commandPrefix: string;
    commandPopover: MentionPopover | null;
    commandOverlay: React.CSSProperties[] | null;
    commandActiveKeys: (string | number)[] | null;
    setInitialCommand: React.Dispatch<React.SetStateAction<ChatCommand | null>>;
    handleSelectCommand: (action: ActionWithSubCommands) => void;
    handleChange: (e: React.ChangeEvent<HTMLTextAreaElement>) => void;
    handleKeyDown: (e: React.KeyboardEvent<HTMLTextAreaElement>) => false | undefined;
};