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

const loyaltyAnalyticsLog = window.LogConfig.loggers.loyaltyAnalytics || window.LogConfig.createLogger('loyaltyAnalytics');

function merchantLoyaltyAnalytics() {
    return {
        ...data(),
        currentPage: 'analytics',

        program: null,
        locations: [],

        stats: {
            total_cards: 0,
            active_cards: 0,
            new_this_month: 0,
            total_points_issued: 0,
            total_points_redeemed: 0,
            total_points_balance: 0,
            points_issued_30d: 0,
            points_redeemed_30d: 0,
            transactions_30d: 0,
            avg_points_per_member: 0,
            estimated_liability_cents: 0,
        },

        loading: false,
        error: null,

        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);
        },

        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);
        },

        get redeemedPercentage() {
            return 100 - this.issuedPercentage;
        },

        async init() {
            loyaltyAnalyticsLog.info('=== MERCHANT LOYALTY ANALYTICS PAGE INITIALIZING ===');
            if (window._loyaltyAnalyticsInitialized) return;
            window._loyaltyAnalyticsInitialized = true;

            this.loadMenuConfig();
            await this.loadStats();
            loyaltyAnalyticsLog.info('=== MERCHANT LOYALTY ANALYTICS PAGE INITIALIZATION COMPLETE ===');
        },

        async loadStats() {
            this.loading = true;
            this.error = null;

            try {
                const response = await apiClient.get('/merchants/loyalty/stats');
                if (response) {
                    this.program = response.program || null;
                    this.locations = response.locations || [];

                    const totalBalance = (response.total_points_issued || 0) - (response.total_points_redeemed || 0);
                    const avgPoints = response.active_cards > 0
                        ? Math.round(totalBalance / response.active_cards * 100) / 100
                        : 0;

                    this.stats = {
                        total_cards: response.total_cards || 0,
                        active_cards: response.active_cards || 0,
                        new_this_month: response.new_this_month || 0,
                        total_points_issued: response.total_points_issued || 0,
                        total_points_redeemed: response.total_points_redeemed || 0,
                        total_points_balance: totalBalance,
                        points_issued_30d: response.points_issued_30d || 0,
                        points_redeemed_30d: response.points_redeemed_30d || 0,
                        transactions_30d: response.transactions_30d || 0,
                        avg_points_per_member: avgPoints,
                        estimated_liability_cents: response.estimated_liability_cents || 0,
                    };
                    loyaltyAnalyticsLog.info('Merchant stats loaded');
                }
            } catch (error) {
                if (error.status === 404) {
                    loyaltyAnalyticsLog.info('No program found');
                    this.program = null;
                } else {
                    loyaltyAnalyticsLog.error('Failed to load stats:', error);
                    this.error = error.message || 'Failed to load analytics';
                }
            } finally {
                this.loading = false;
            }
        },

        formatNumber(num) {
            if (num === null || num === undefined) return '0';
            return new Intl.NumberFormat('en-US').format(num);
        }
    };
}

if (!window.LogConfig.loggers.loyaltyAnalytics) {
    window.LogConfig.loggers.loyaltyAnalytics = window.LogConfig.createLogger('loyaltyAnalytics');
}
loyaltyAnalyticsLog.info('Merchant loyalty analytics module loaded');