import { IChatMessage, ISlashCommand } from '../../components/widgets/ChatPane';

/**
 * A slash command as held in the shell store. Extends the presentational
 * {@link ISlashCommand} with the handler that runs when it is invoked.
 */
export interface ISlashCommandConfig extends ISlashCommand {
    /** Runs when the command is submitted. Receives the whitespace-split args. */
    execute: (args: string[]) => void;
}
interface ChatState {
    messages: IChatMessage[];
    slashCommands: ISlashCommandConfig[];
    setMessages: (messages: IChatMessage[]) => void;
    addMessage: (message: Omit<IChatMessage, 'id'> & {
        id?: string;
    }) => void;
    clearMessages: () => void;
    setSlashCommands: (commands: ISlashCommandConfig[]) => void;
    /**
     * Add a command, replacing any existing one with the same `command` word.
     *
     * Registering is idempotent so that a component registering in an effect is
     * safe to mount twice — which React does in StrictMode, and again on every
     * remount. Appending blindly would leave the same command listed two or three
     * times in the suggestion list.
     */
    registerSlashCommand: (command: ISlashCommandConfig) => void;
    /**
     * Remove a command by its `command` word. Unknown words are ignored.
     *
     * The counterpart to {@link ChatState.registerSlashCommand}, so a component
     * that registers on mount can clean up on unmount and stop offering a command
     * whose handler is gone.
     */
    unregisterSlashCommand: (command: string) => void;
}
/**
 * Shell-level store for the chat pane's transcript and slash commands.
 * Consumed by `ConnectedChatPane`; the presentational `ChatPane` does not read
 * it.
 */
export declare const useChatStore: import('zustand').UseBoundStore<import('zustand').StoreApi<ChatState>>;
export type { IChatMessage, ISlashCommand };