import type { ChartConfig } from '@/types/chart';
/**
 * Global state manager for chart popup modal.
 * This singleton manages popup state outside of the component tree,
 * preventing state loss during DOM re-renders (e.g., during SSE streaming).
 */
declare class ChartPopupManager {
    private _isOpen;
    private _config;
    private _backgroundColor;
    private _textColor;
    /**
     * Get the isOpen signal accessor
     */
    get isOpen(): import("solid-js").Accessor<boolean>;
    /**
     * Get the config signal accessor
     */
    get config(): import("solid-js").Accessor<ChartConfig | null>;
    /**
     * Get the backgroundColor signal accessor
     */
    get backgroundColor(): import("solid-js").Accessor<string | undefined>;
    /**
     * Get the textColor signal accessor
     */
    get textColor(): import("solid-js").Accessor<string | undefined>;
    /**
     * Open the popup with the given chart configuration
     */
    open(config: ChartConfig, backgroundColor?: string, textColor?: string): void;
    /**
     * Close the popup
     */
    close(): void;
    /**
     * Reset all state (useful for cleanup)
     */
    reset(): void;
}
export declare const chartPopupManager: ChartPopupManager;
export {};
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