import type { IBackgroundSystem } from "../../../core/contracts/IBackgroundSystem.js";
import type { Dimensions, QualityLevel } from "../../../core/domain/types.js";
import type { AccessibilitySettings } from "../../../core/domain/types.js";
import type { RainbowLayers, RainbowStats } from "../domain/models/rainbow-models.js";
import { type PridePalette } from "../domain/constants/rainbow-constants.js";
/**
 * RainbowBackgroundSystem - Pride celebration background
 *
 * A sophisticated background system celebrating LGBTQ+ pride with
 * flowing rainbow bands, sparkles, bokeh orbs, shimmer effects,
 * and optional floating hearts.
 *
 * Architecture: Composition pattern with dedicated subsystems for each visual layer.
 */
export declare class RainbowBackgroundSystem implements IBackgroundSystem {
    private gradientSystem;
    private bokehSystem;
    private sparkleSystem;
    private shimmerSystem;
    private heartsSystem;
    private quality;
    private isInitialized;
    private dimensions;
    private accessibility;
    private currentPalette;
    private colors;
    private brightColors;
    private layerVisibility;
    constructor();
    /**
     * Initialize the background system
     */
    initialize(dimensions: Dimensions, quality: QualityLevel): void;
    /**
     * Update animation state
     */
    update(dimensions: Dimensions, frameMultiplier?: number): void;
    /**
     * Draw all layers
     */
    draw(ctx: CanvasRenderingContext2D, dimensions: Dimensions): void;
    /**
     * Draw the base dark gradient
     */
    private drawBaseGradient;
    /**
     * Set quality level
     */
    setQuality(quality: QualityLevel): void;
    /**
     * Set accessibility settings
     */
    setAccessibility(settings: AccessibilitySettings): void;
    /**
     * Handle resize
     */
    handleResize(oldDimensions: Dimensions, newDimensions: Dimensions): void;
    /**
     * Clean up resources
     */
    cleanup(): void;
    /**
     * Set the pride palette
     */
    setPalette(palette: PridePalette): void;
    /**
     * Get current palette
     */
    getPalette(): PridePalette;
    /**
     * Update colors from current palette
     */
    private updatePaletteColors;
    /**
     * Set layer visibility
     */
    setLayerVisibility(layers: Partial<RainbowLayers>): void;
    /**
     * Get layer visibility
     */
    getLayerVisibility(): RainbowLayers;
    /**
     * Get stats for lab display
     */
    getStats(): RainbowStats;
    /**
     * Get available palettes
     */
    getAvailablePalettes(): PridePalette[];
}
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