// Analytics Module v1.4.1
class Analytics {
    constructor() {
        this.events = [];
        this.initialized = false;
        this.userId = null;
    }

    async initialize() {
        if (this.initialized) return;
        
        this.userId = this._generateUserId();
        this.initialized = true;
        
        setInterval(() => this._processQueue(), 30000);
    }

    trackEvent(category, action, label = null, value = null) {
        if (!this.initialized) {
            console.warn('Analytics not initialized');
            return;
        }

        this.events.push({
            timestamp: Date.now(),
            category,
            action,
            label,
            value,
            userId: this.userId,
            sessionId: this._getSessionId()
        });
    }

    async _processQueue() {
        if (this.events.length === 0) return;

        const batch = this.events.splice(0, 50);
        try {
            await this._sendEvents(batch);
        } catch (error) {
            console.error('Failed to send analytics:', error);
            this.events.unshift(...batch);
        }
    }

    async _sendEvents(events) {
        const response = await fetch('https://analytics.example.com/collect', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({
                events,
                timestamp: Date.now(),
                version: '1.4.1'
            })
        });

        if (!response.ok) {
            throw new Error(`Analytics error: ${response.status}`);
        }
    }

    _generateUserId() {
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
            const r = Math.random() * 16 | 0;
            return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
        });
    }

    _getSessionId() {
        if (!this._sessionId) {
            this._sessionId = Date.now().toString(36) + Math.random().toString(36).substr(2);
        }
        return this._sessionId;
    }
}

export const analytics = new Analytics();