// app/modules/loyalty/static/admin/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 adminLoyaltyAnalytics() {
    return {
        ...data(),
        currentPage: 'loyalty-analytics',

        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,
            total_points_issued: 0,
            total_points_redeemed: 0,
            total_points_balance: 0,
            new_this_month: 0,
            estimated_liability_cents: 0,
        },

        locations: [],

        // Merchant filter state
        selectedMerchant: null,
        merchantSearch: '',
        merchantResults: [],
        showMerchantDropdown: false,
        searchingMerchants: false,

        loading: false,
        error: null,

        _searchTimeout: 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('=== LOYALTY ANALYTICS PAGE INITIALIZING ===');
            if (window._loyaltyAnalyticsInitialized) return;
            window._loyaltyAnalyticsInitialized = true;

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

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

            try {
                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,
                        total_points_issued: response.total_points_issued || 0,
                        total_points_redeemed: response.total_points_redeemed || 0,
                        total_points_balance: response.total_points_balance || 0,
                        new_this_month: response.new_this_month || 0,
                        estimated_liability_cents: response.estimated_liability_cents || 0,
                    };
                    this.locations = [];
                    loyaltyAnalyticsLog.info('Platform stats loaded');
                }
            } catch (error) {
                loyaltyAnalyticsLog.error('Failed to load analytics:', error);
                this.error = error.message || 'Failed to load analytics';
            } finally {
                this.loading = false;
            }
        },

        searchMerchants() {
            clearTimeout(this._searchTimeout);
            this._searchTimeout = setTimeout(async () => {
                if (this.merchantSearch.length < 2) {
                    this.merchantResults = [];
                    return;
                }
                this.searchingMerchants = true;
                try {
                    const response = await apiClient.get(`/admin/loyalty/programs?search=${encodeURIComponent(this.merchantSearch)}&limit=10`);
                    if (response && response.programs) {
                        this.merchantResults = response.programs.map(p => ({
                            id: p.merchant_id,
                            merchant_name: p.merchant_name || p.display_name || `Program #${p.id}`,
                            loyalty_type: p.loyalty_type,
                        }));
                    }
                } catch (error) {
                    loyaltyAnalyticsLog.error('Merchant search failed:', error);
                    this.merchantResults = [];
                } finally {
                    this.searchingMerchants = false;
                }
            }, 300);
        },

        async selectMerchant(item) {
            this.selectedMerchant = item;
            this.merchantSearch = '';
            this.merchantResults = [];
            this.showMerchantDropdown = false;

            this.loading = true;
            this.error = null;

            try {
                const response = await apiClient.get(`/admin/loyalty/merchants/${item.id}/stats`);
                if (response) {
                    this.stats = {
                        total_programs: 1,
                        active_programs: response.program?.is_active ? 1 : 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: 1,
                        total_points_issued: response.total_points_issued || 0,
                        total_points_redeemed: response.total_points_redeemed || 0,
                        total_points_balance: (response.total_points_issued || 0) - (response.total_points_redeemed || 0),
                        new_this_month: response.new_this_month || 0,
                        estimated_liability_cents: response.estimated_liability_cents || 0,
                    };
                    this.locations = response.locations || [];
                    loyaltyAnalyticsLog.info('Merchant stats loaded for:', item.merchant_name);
                }
            } catch (error) {
                loyaltyAnalyticsLog.error('Failed to load merchant stats:', error);
                this.error = error.message || 'Failed to load merchant stats';
            } finally {
                this.loading = false;
            }
        },

        async clearMerchantFilter() {
            this.selectedMerchant = null;
            this.merchantSearch = '';
            this.merchantResults = [];
            await this.loadStats();
        },

        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('Loyalty analytics module loaded');