// app/modules/loyalty/static/admin/js/loyalty-analytics.js
// noqa: js-006 - async init pattern is safe, loadData has try/catch

// Use centralized logger
const loyaltyAnalyticsLog = window.LogConfig.loggers.loyaltyAnalytics || window.LogConfig.createLogger('loyaltyAnalytics');

// ============================================
// LOYALTY ANALYTICS FUNCTION
// ============================================
function adminLoyaltyAnalytics() {
    return {
        // Inherit base layout functionality
        ...data(),

        // Page identifier for sidebar active state
        currentPage: 'loyalty-analytics',

        // Stats
        stats: {
            total_programs: 0,
            active_programs: 0,
            total_cards: 0,
            active_cards: 0,
            transactions_30d: 0,
            points_issued_30d: 0,
            points_redeemed_30d: 0,
            merchants_with_programs: 0
        },

        // State
        loading: false,
        error: null,

        // Computed: Redemption rate percentage
        get redemptionRate() {
            if (this.stats.points_issued_30d === 0) return 0;
            return Math.round((this.stats.points_redeemed_30d / this.stats.points_issued_30d) * 100);
        },

        // Computed: Issued percentage for progress bar
        get issuedPercentage() {
            const total = this.stats.points_issued_30d + this.stats.points_redeemed_30d;
            if (total === 0) return 50;
            return Math.round((this.stats.points_issued_30d / total) * 100);
        },

        // Computed: Redeemed percentage for progress bar
        get redeemedPercentage() {
            return 100 - this.issuedPercentage;
        },

        // Initialize
        async init() {
            loyaltyAnalyticsLog.info('=== LOYALTY ANALYTICS PAGE INITIALIZING ===');

            // Prevent multiple initializations
            if (window._loyaltyAnalyticsInitialized) {
                loyaltyAnalyticsLog.warn('Loyalty analytics page already initialized, skipping...');
                return;
            }
            window._loyaltyAnalyticsInitialized = true;

            loyaltyAnalyticsLog.group('Loading analytics data');
            await this.loadStats();
            loyaltyAnalyticsLog.groupEnd();

            loyaltyAnalyticsLog.info('=== LOYALTY ANALYTICS PAGE INITIALIZATION COMPLETE ===');
        },

        // Load platform stats
        async loadStats() {
            this.loading = true;
            this.error = null;

            try {
                loyaltyAnalyticsLog.info('Fetching loyalty analytics...');

                const response = await apiClient.get('/admin/loyalty/stats');

                if (response) {
                    this.stats = {
                        total_programs: response.total_programs || 0,
                        active_programs: response.active_programs || 0,
                        total_cards: response.total_cards || 0,
                        active_cards: response.active_cards || 0,
                        transactions_30d: response.transactions_30d || 0,
                        points_issued_30d: response.points_issued_30d || 0,
                        points_redeemed_30d: response.points_redeemed_30d || 0,
                        merchants_with_programs: response.merchants_with_programs || 0
                    };

                    loyaltyAnalyticsLog.info('Analytics loaded:', this.stats);
                }
            } catch (error) {
                loyaltyAnalyticsLog.error('Failed to load analytics:', error);
                this.error = error.message || 'Failed to load analytics';
            } finally {
                this.loading = false;
            }
        },

        // Format number with thousands separator
        formatNumber(num) {
            if (num === null || num === undefined) return '0';
            return new Intl.NumberFormat('en-US').format(num);
        }
    };
}

// Register logger for configuration
if (!window.LogConfig.loggers.loyaltyAnalytics) {
    window.LogConfig.loggers.loyaltyAnalytics = window.LogConfig.createLogger('loyaltyAnalytics');
}

loyaltyAnalyticsLog.info('Loyalty analytics module loaded');