/**
 * Dashboard auto-refresh script
 * Polls API every 10 seconds and updates stat cards
 * ChartBar handles its own refresh via refresh_period
 * Auto-loaded by Sage's header.tmpl from wwwroot/
 */
(function() {
    'use strict';

    function getBaseUrl() {
        var path = window.location.pathname;
        // path is like /dashboard_for_sage/index.ui or /dashboard_for_sage/
        var parts = path.split('/').filter(function(p) { return p.length > 0; });
        if (parts.length === 0) return '';
        return '/' + parts[0];
    }

    function buildUrl(dspyFile) {
        var base = getBaseUrl();
        return base + '/' + dspyFile + '?_webbricks_=1';
    }

    function setCardText(cardId, value) {
        try {
            var widget = bricks.getWidgetById(cardId, bricks.app);
            if (widget && typeof widget.set_text === 'function') {
                widget.set_text(String(value));
            }
        } catch(e) {}
    }

    function formatNumber(n) {
        if (typeof n === 'number') return n.toLocaleString();
        return String(n);
    }

    function formatAmount(n) {
        if (typeof n === 'number') return '\u00a5' + n.toFixed(2);
        return '\u00a50.00';
    }

    async function refreshStats() {
        try {
            var url = buildUrl('api/get_today_usage.dspy');
            var resp = await fetch(url, { credentials: 'include' });
            if (!resp.ok) return;
            var data = await resp.json();
            setCardText('today_cnt_value', formatNumber(data.cnt));
            setCardText('today_amount_value', formatAmount(data.total_amount));
        } catch(e) {
            console.error('refreshStats error:', e);
        }
    }

    async function refreshUsers() {
        try {
            var url = buildUrl('api/get_user_stats.dspy');
            var resp = await fetch(url, { credentials: 'include' });
            if (!resp.ok) return;
            var data = await resp.json();
            setCardText('total_users_value', formatNumber(data.total_users));
            setCardText('concurrent_users_value', formatNumber(data.concurrent_users));
        } catch(e) {
            console.error('refreshUsers error:', e);
        }
    }

    async function refreshAll() {
        await refreshStats();
        await refreshUsers();
    }

    // Wait for bricks framework to initialize, then start auto-refresh
    setTimeout(function() {
        refreshAll();
        setInterval(refreshAll, 10000);
    }, 2000);

})();