import type { Dimensions, QualityLevel } from "../../../core/domain/types.js";
import type { IBackgroundSystem } from "../../../core/contracts/IBackgroundSystem.js";
import { type TimeOfDay, type TimeOfDayPreset } from "../domain/constants/time-of-day-presets.js";
import { type MoonConfig } from "../../../core/services/MoonRenderer.js";
/**
 * Blossom Background System
 *
 * Renders cherry blossom petals with three time-of-day modes:
 * - Twilight: Soft purple-lavender (peaceful, contemplative)
 * - Golden Hour: Warm orange-pink-gold (nostalgic, warm)
 * - Night: Deep blue-purple with lanterns (magical, festival)
 *
 * All layers are toggleable for experimentation.
 */
export interface BlossomLayers {
    gradient: boolean;
    petals: boolean;
    petalsFar: boolean;
    petalsMid: boolean;
    petalsNear: boolean;
    trails: boolean;
    accumulation: boolean;
    vortex: boolean;
    moon: boolean;
    stars: boolean;
    trees: boolean;
    lanterns: boolean;
    reflection: boolean;
}
export declare class BlossomBackgroundSystem implements IBackgroundSystem {
    private petalSystem;
    private windSystem;
    private petals;
    private quality;
    private isInitialized;
    private lastDimensions;
    private initializedWithValidDimensions;
    private currentPreset;
    private gradientStops;
    private moonSystem;
    private starSystem;
    private treeSystem;
    private lanternSystem;
    private layers;
    constructor();
    initialize(dimensions: Dimensions, quality: QualityLevel): void;
    update(dimensions: Dimensions, frameMultiplier?: number): void;
    draw(ctx: CanvasRenderingContext2D, dimensions: Dimensions): void;
    private drawGradient;
    setQuality(quality: QualityLevel): void;
    setAccessibility(_settings: {
        reducedMotion: boolean;
        highContrast: boolean;
    }): void;
    handleResize(oldDimensions: Dimensions, newDimensions: Dimensions): void;
    cleanup(): void;
    /**
     * Set the time of day mode
     * Updates gradient and auto-enables appropriate layers
     */
    setTimeOfDay(mode: TimeOfDay): void;
    /**
     * Get current time of day mode
     */
    getTimeOfDay(): TimeOfDay;
    /**
     * Get current preset (for UI theming)
     */
    getCurrentPreset(): TimeOfDayPreset;
    /**
     * Set layer visibility
     */
    setLayerVisibility(layers: Partial<BlossomLayers>): void;
    /**
     * Get current layer visibility
     */
    getLayerVisibility(): BlossomLayers;
    /**
     * Get current scene statistics
     */
    getStats(): {
        petals: number;
        flowers: number;
        lanterns: number;
        stars: number;
    };
    /**
     * Trigger a wind gust manually
     */
    triggerGust(direction?: number): void;
    /**
     * Get current moon configuration
     */
    getMoonConfig(): Partial<MoonConfig>;
    /**
     * Update moon configuration
     */
    setMoonConfig(config: Partial<MoonConfig>): void;
}
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