/**
 * Animation System Module
 * 
 * Unified animation system consolidating all scroll animation modules.
 * 
 * Replaces:
 * - scrollfx
 * - parallax
 * - scroll-timeline
 * - scroll-loop
 * - scroll-dependent
 * - sticky-fade
 * - sticky-steps
 * 
 * Usage:
 * - Add data-module="animation-system" to enable animations
 * - Or import and use directly: import { AnimationSystem } from './modules/animation-system/index.js'
 * 
 * Features:
 * - Fade-in animations
 * - Parallax effects
 * - Scroll timeline animations
 * - Sticky fade animations
 * - Sticky steps animations
 * - IntersectionObserver support
 * - Backward compatibility with old modules
 */

import { Logger } from '../../core/logger.js';
import { AnimationSystem } from './AnimationSystem.js';
import { ScrollAnimation } from './ScrollAnimation.js';
import { TimelineAnimation } from './TimelineAnimation.js';

const AnimationSystemModule = {
    name: 'animation-system',
    animationSystem: null,
    
    init(config = {}, state = null) {
        Logger.info('[AnimationSystemModule] Module initialized');
        
        // Create animation system
        this.animationSystem = AnimationSystem.create(config);
        
        // Expose globally for easy access
        if (typeof window !== 'undefined') {
            window.AnimationSystem = this.animationSystem;
        }
        
        return this;
    },
    
    /**
     * Get animation system instance
     */
    getAnimationSystem() {
        return this.animationSystem || AnimationSystem.create();
    },
    
    /**
     * Register animation
     */
    registerAnimation(element, config) {
        const system = this.getAnimationSystem();
        system.registerAnimation(element, config);
    },
    
    destroy() {
        if (this.animationSystem) {
            this.animationSystem.destroy();
            this.animationSystem = null;
        }
        
        if (typeof window !== 'undefined' && window.AnimationSystem) {
            delete window.AnimationSystem;
        }
        
        Logger.info('[AnimationSystemModule] Module destroyed');
    }
};

// Export for direct usage
export { AnimationSystem, ScrollAnimation, TimelineAnimation };

// Export as default for module system
export default AnimationSystemModule;

// Export init function for module system
export const init = AnimationSystemModule.init.bind(AnimationSystemModule);

// Backward compatibility exports
export { createTrigger } from '../scrollfx/index.js';