/* ═══════════════════════════════════════════════════════════════════════════
 * dashboard.js — Dashboard V3 (cablata sui DATI REALI via api.js).
 * ───────────────────────────────────────────────────────────────────────────
 * Markup/classi FEDELI al mockup "docs/mockup Ui/index.html" (.daystrip/.weekstrip/
 * .stat/.sca/.act/.anag/.doc), ma ZERO dati finti: tutto da
 *   /dashboard/overview · /dashboard/compliance-score · /dashboard/upcoming-deadlines
 *   /dashboard/recent-activity · /organizations/current
 * Stati loading/empty/error gestiti. NESSUN endpoint nuovo.
 * I monitor giornaliero/settimanale usano gli EVENTI reali (scadenze + attività);
 * "Documenti istituzionali" non ha endpoint → stato vuoto onesto (no invenzione).
 * ═══════════════════════════════════════════════════════════════════════════ */
(function () {
    'use strict';

    // ── Date helpers (porting dal mockup, ma TODAY = data reale) ────────────
    var TODAY = new Date(); TODAY.setHours(0, 0, 0, 0);
    var MO = ['gen', 'feb', 'mar', 'apr', 'mag', 'giu', 'lug', 'ago', 'set', 'ott', 'nov', 'dic'];
    var WDa = ['Lun', 'Mar', 'Mer', 'Gio', 'Ven', 'Sab', 'Dom'];
    var WDi = ['L', 'M', 'M', 'G', 'V', 'S', 'D'];
    var DAY = 86400000;
    function mi(d) { return (d.getDay() + 6) % 7; }
    function addD(d, n) { return new Date(d.getFullYear(), d.getMonth(), d.getDate() + n); }
    function iso(d) { return d.getFullYear() + '-' + String(d.getMonth() + 1).padStart(2, '0') + '-' + String(d.getDate()).padStart(2, '0'); }
    function monday(d) { return addD(d, -mi(d)); }
    function same(a, b) { return iso(a) === iso(b); }
    function weekLabel(m) { var s = addD(m, 6); return m.getMonth() === s.getMonth() ? (m.getDate() + ' – ' + s.getDate() + ' ' + MO[s.getMonth()]) : (m.getDate() + ' ' + MO[m.getMonth()] + ' – ' + s.getDate() + ' ' + MO[s.getMonth()]); }

    function esc(s) { return (typeof escapeHtml === 'function') ? escapeHtml(s) : String(s == null ? '' : s); }

    // ── EVENTI reali: dizionario iso-date → [{t, c, time}] ──────────────────
    // Popolato da scadenze (api.getUpcomingDeadlines) + attività (recent-activity).
    var EVENTS = {};
    function pushEvent(dateVal, title, color, time) {
        if (!dateVal) return;
        var d = new Date(dateVal);
        if (isNaN(d.getTime())) return;
        var k = iso(d);
        (EVENTS[k] = EVENTS[k] || []).push({ t: title || 'Evento', c: color || 'blue', time: time || '' });
    }
    function evOf(d) { return EVENTS[iso(d)] || []; }
    function dots(list) { return list.slice(0, 4).map(function (e) { return '<i class="ev ' + e.c + '"></i>'; }).join(''); }

    // ── Popover (porting fedele dal mockup) ─────────────────────────────────
    var POP = document.createElement('div'); POP.className = 'cal-pop'; document.body.appendChild(POP);
    var popTimer;
    function showPop(anchor, html) {
        clearTimeout(popTimer);
        POP.innerHTML = html; POP.style.display = 'block';
        var r = anchor.getBoundingClientRect();
        var pw = POP.offsetWidth, ph = POP.offsetHeight;
        var left = r.left + r.width / 2 - pw / 2;
        left = Math.max(10, Math.min(left, window.innerWidth - pw - 10));
        var top = r.top - ph - 10; if (top < 10) top = r.bottom + 10;
        POP.style.left = left + 'px'; POP.style.top = top + 'px';
        requestAnimationFrame(function () { POP.classList.add('show'); });
    }
    function hidePop() { POP.classList.remove('show'); popTimer = setTimeout(function () { POP.style.display = 'none'; }, 150); }
    function dayPop(d) {
        var list = evOf(d);
        var head = WDa[mi(d)] + ' ' + d.getDate() + ' ' + MO[d.getMonth()];
        var body = list.length
            ? list.map(function (e) { return '<div class="pe"><span class="ev ' + e.c + '"></span><div>' + (e.time ? '<span class="tt">' + esc(e.time) + '</span>' : '') + '<b>' + esc(e.t) + '</b></div></div>'; }).join('')
            : '<div class="empty">Nessun appuntamento.</div>';
        return '<h4>' + head + '</h4>' + body;
    }
    function weekPop(m) {
        var items = [];
        for (var i = 0; i < 7; i++) { var d = addD(m, i); evOf(d).forEach(function (e) { items.push({ d: d, e: e }); }); }
        var body = items.length
            ? items.slice(0, 6).map(function (o) { return '<div class="pe"><span class="ev ' + o.e.c + '"></span><div><span class="tt">' + WDa[mi(o.d)] + ' ' + o.d.getDate() + '</span><b>' + esc(o.e.t) + '</b></div></div>'; }).join('')
            : '<div class="empty">Nessun appuntamento.</div>';
        if (items.length > 6) body += '<div class="empty" style="margin-top:6px">+' + (items.length - 6) + ' altri…</div>';
        return '<h4>' + weekLabel(m) + '</h4>' + body;
    }
    function openCal() { window.location.href = 'calendario.html'; }

    var dayOffset = 0, weekOffset = 0;
    function renderDaily() {
        var center = addD(TODAY, dayOffset);
        var wrap = document.getElementById('daystrip'); if (!wrap) return; wrap.innerHTML = '';
        for (var i = -6; i <= 6; i++) {
            (function (d) {
                var cell = document.createElement('div');
                cell.className = 'daycell' + (mi(d) >= 5 ? ' weekend' : '') + (same(d, TODAY) ? ' today' : '');
                cell.innerHTML = '<div class="wd">' + WDa[mi(d)] + '</div><div class="dn">' + d.getDate() + '</div><div class="mo">' + MO[d.getMonth()] + '</div><div class="dots">' + dots(evOf(d)) + '</div>';
                cell.addEventListener('mouseenter', function () { showPop(cell, dayPop(d)); });
                cell.addEventListener('mouseleave', hidePop);
                cell.addEventListener('click', openCal);
                wrap.appendChild(cell);
            })(addD(center, i));
        }
    }
    function renderWeekly() {
        var curMon = monday(TODAY);
        var centerMon = addD(curMon, weekOffset * 7);
        var wrap = document.getElementById('weekstrip'); if (!wrap) return; wrap.innerHTML = '';
        for (var w = -1; w <= 1; w++) {
            (function (m) {
                var isCur = same(m, curMon);
                var diff = Math.round((m - curMon) / (7 * DAY));
                var tag = diff === 0 ? 'Settimana in corso' : diff === -1 ? 'Settimana precedente' : diff === 1 ? 'Settimana successiva' : diff < 0 ? (-diff) + ' settimane fa' : 'Tra ' + diff + ' settimane';
                var block = document.createElement('div');
                block.className = 'weekblock' + (isCur ? ' current' : '');
                var minis = '';
                for (var i = 0; i < 7; i++) { var d = addD(m, i); minis += '<div class="mini' + (mi(d) >= 5 ? ' weekend' : '') + (same(d, TODAY) ? ' today' : '') + '"><div class="mi-wd">' + WDi[mi(d)] + '</div><div class="mi-dn">' + d.getDate() + '</div><div class="mi-ev">' + dots(evOf(d)) + '</div></div>'; }
                block.innerHTML = '<div class="wl"><b>' + weekLabel(m) + '</b><span>' + tag + '</span></div><div class="week7">' + minis + '</div>';
                block.addEventListener('mouseenter', function () { showPop(block, weekPop(m)); });
                block.addEventListener('mouseleave', hidePop);
                block.addEventListener('click', openCal);
                wrap.appendChild(block);
            })(addD(centerMon, w * 7));
        }
    }
    function wireCalControls() {
        var map = [['d-prev', function () { dayOffset--; renderDaily(); }], ['d-next', function () { dayOffset++; renderDaily(); }],
                   ['d-today', function () { dayOffset = 0; renderDaily(); }], ['w-prev', function () { weekOffset--; renderWeekly(); }],
                   ['w-next', function () { weekOffset++; renderWeekly(); }], ['w-today', function () { weekOffset = 0; renderWeekly(); }]];
        map.forEach(function (p) { var el = document.getElementById(p[0]); if (el) el.onclick = p[1]; });
    }

    // ── Stato cella generico (loading/empty/error) ──────────────────────────
    function setLoading(id) { var el = document.getElementById(id); if (el) el.innerHTML = '<div class="v3-loading"><span class="v3-spin"></span>Caricamento…</div>'; }
    function setEmpty(id, title, sub, icon) { var el = document.getElementById(id); if (el) el.innerHTML = '<div class="v3-empty"><i data-lucide="' + (icon || 'inbox') + '" class="ic"></i><b>' + esc(title) + '</b><span>' + esc(sub || '') + '</span></div>'; refreshIcons(); }
    function setError(id, msg) { var el = document.getElementById(id); if (el) el.innerHTML = '<div class="v3-error"><i data-lucide="alert-triangle" class="ic"></i><b>Errore di caricamento</b><span>' + esc(msg || 'Riprova tra poco.') + '</span></div>'; refreshIcons(); }
    function refreshIcons() { if (window.lucide && lucide.createIcons) { try { lucide.createIcons(); } catch (e) {} } }

    // ── Mappa categoria → colore badge (coerente col mockup) ────────────────
    function catColor(cat) {
        var c = String(cat || '').toLowerCase();
        if (/incid/.test(c)) return 'red';
        if (/formaz|training/.test(c)) return 'green';
        if (/govern|riesame|board|direzion/.test(c)) return 'blue';
        if (/control|rischi|risk|audit/.test(c)) return 'amber';
        return 'gray';
    }

    // ── 1) Stat cards (3) — dati reali da overview + compliance-score ───────
    async function loadStats() {
        var elGap = document.getElementById('stat-gap');
        var elTrain = document.getElementById('stat-training');
        var elRisk = document.getElementById('stat-risk');
        try {
            var ov = await api.getDashboardOverview();
            var d = (ov && ov.success && ov.data) ? ov.data : {};

            // Formazione: % completata (overview.training {total, completed})
            var tTot = d.training ? (parseInt(d.training.total) || 0) : 0;
            var tDone = d.training ? (parseInt(d.training.completed) || 0) : 0;
            var tPct = tTot > 0 ? Math.round((tDone / tTot) * 100) : 0;
            if (elTrain) {
                elTrain.querySelector('.val').textContent = tTot > 0 ? (tPct + '%') : '0%';
                elTrain.querySelector('.sub').textContent = tTot > 0 ? (tDone + ' di ' + tTot + ' completati') : 'Nessun corso assegnato';
            }

            // Rischi valutati: total rischi (overview.risks.total) + % implementazione misure
            var riskTotal = d.risks ? (parseInt(d.risks.total) || 0) : 0;
            // compliance-score per la percentuale "valutati/implementati"
            var pct = 0;
            try {
                var sc = await api.getComplianceScore();
                if (sc && sc.success && sc.data) {
                    pct = (sc.data.avg_implementation && sc.data.avg_implementation > 0) ? Math.round(sc.data.avg_implementation) : Math.round(sc.data.score || 0);
                }
            } catch (e) {}
            if (elRisk) {
                elRisk.querySelector('.val').textContent = pct + '%';
                elRisk.querySelector('.sub').textContent = riskTotal > 0 ? ('su ' + riskTotal + ' del registro rischi') : 'Registro rischi vuoto';
                var barI = elRisk.querySelector('.bar > i'); if (barI) barI.style.width = Math.max(0, Math.min(100, pct)) + '%';
            }

            // GAP analysis: numero assessment in corso (overview non sempre lo espone → usa list)
            if (elGap) { fillGapCard(elGap); }
        } catch (e) {
            if (elGap) { elGap.querySelector('.val').textContent = '—'; elGap.querySelector('.sub').textContent = 'Dati non disponibili'; }
            if (elTrain) { elTrain.querySelector('.val').textContent = '—'; elTrain.querySelector('.sub').textContent = 'Dati non disponibili'; }
            if (elRisk) { elRisk.querySelector('.val').textContent = '—'; elRisk.querySelector('.sub').textContent = 'Dati non disponibili'; }
        }
    }

    async function fillGapCard(elGap) {
        try {
            var r = await api.listAssessments();
            var list = (r && r.success && Array.isArray(r.data)) ? r.data : (r && Array.isArray(r.data && r.data.items) ? r.data.items : []);
            if (!Array.isArray(list)) list = [];
            var inProgress = list.filter(function (a) { var s = String(a.status || '').toLowerCase(); return s && s !== 'completed' && s !== 'completato'; }).length;
            elGap.querySelector('.val').textContent = list.length ? String(inProgress) : '0';
            elGap.querySelector('.sub').textContent = list.length ? ('su ' + list.length + ' assessment') : 'Nessun assessment';
        } catch (e) {
            elGap.querySelector('.val').textContent = '—';
            elGap.querySelector('.sub').textContent = 'Dati non disponibili';
        }
    }

    // ── 2) Scadenze (prossimi 10 giorni) — dati reali ───────────────────────
    async function loadDeadlines() {
        setLoading('sca-list');
        try {
            var r = await api.getUpcomingDeadlines();
            var list = (r && r.success && Array.isArray(r.data)) ? r.data : [];
            // alimenta i monitor calendario con eventi reali
            list.forEach(function (dl) {
                var when = dl.due_date || dl.date || dl.deadline;
                pushEvent(when, dl.title || dl.description || 'Scadenza', catColor(dl.category || dl.type), '');
            });
            renderDaily(); renderWeekly();

            var hint = document.getElementById('sca-hint');
            if (hint) hint.textContent = list.length + (list.length === 1 ? ' in agenda' : ' in agenda');

            if (!list.length) { setEmpty('sca-list', 'Nessuna scadenza imminente', 'Le prossime scadenze appariranno qui.', 'calendar-check'); return; }

            var html = list.slice(0, 10).map(function (dl) {
                var d = new Date(dl.due_date || dl.date || dl.deadline);
                var day = isNaN(d.getTime()) ? '—' : d.getDate();
                var mon = isNaN(d.getTime()) ? '' : MO[d.getMonth()].charAt(0).toUpperCase() + MO[d.getMonth()].slice(1);
                var cat = dl.category || dl.type || '';
                var who = dl.owner || dl.assignee || dl.responsible || '';
                return '<div class="sca"><div class="dpill"><b>' + day + '</b><span>' + esc(mon) + '</span></div>' +
                    '<div class="body"><b>' + esc(dl.title || dl.description || 'Scadenza') + '</b>' +
                    '<div class="meta">' + (cat ? '<span class="badge-t ' + catColor(cat) + '">' + esc(cat) + '</span>' : '') +
                    (who ? '<span class="who">' + esc(who) + '</span>' : '') + '</div></div></div>';
            }).join('');
            document.getElementById('sca-list').innerHTML = html;
        } catch (e) {
            setError('sca-list');
        }
    }

    // ── 3) Attività aperte — dati reali da recent-activity ──────────────────
    async function loadActivities() {
        setLoading('act-scroll');
        try {
            var r = await api.getRecentActivity();
            var list = (r && r.success && Array.isArray(r.data)) ? r.data : [];
            // alimenta i monitor con eventi reali (data attività)
            list.forEach(function (a) {
                var when = a.created_at || a.timestamp || a.date;
                pushEvent(when, a.description || a.message || a.action || 'Attività', catColor(a.category || a.type || a.entity_type), '');
            });
            renderDaily(); renderWeekly();

            if (!list.length) { setEmpty('act-scroll', 'Nessuna attività recente', 'Le attività appariranno qui.', 'activity'); return; }

            var html = list.slice(0, 30).map(function (a) {
                var title = a.description || a.message || a.action || 'Attività';
                var who = a.user_name || a.actor || a.user || '';
                var when = a.created_at || a.timestamp || a.date;
                var ago = (typeof timeAgo === 'function' && when) ? timeAgo(when) : '';
                var st = a.status || a.entity_type || a.type || '';
                var stColor = catColor(st);
                return '<div class="act"><div class="body"><b>' + esc(title) + '</b>' +
                    '<div class="meta">' + (who ? '<span class="who">' + esc(who) + '</span>' : '') +
                    (ago ? '<span class="who">· ' + esc(ago) + '</span>' : '') + '</div></div>' +
                    (st ? '<span class="badge-t ' + stColor + '">' + esc(st) + '</span>' : '') + '</div>';
            }).join('');
            document.getElementById('act-scroll').innerHTML = html;
        } catch (e) {
            setError('act-scroll');
        }
    }

    // ── 4) Anagrafica aziendale — dati reali da organizations/current ───────
    var ENTITY_LABEL = { essential: 'Soggetto essenziale', important: 'Soggetto importante', not_applicable: 'Fuori ambito', voluntary: 'Adesione volontaria' };
    function initials(name) {
        return String(name || '').trim().split(/\s+/).map(function (w) { return w[0]; }).filter(Boolean).slice(0, 2).join('').toUpperCase() || '—';
    }
    async function loadAnag() {
        var card = document.getElementById('anag-card'); if (!card) return;
        try {
            var r = await api.getCurrentOrg();
            if (!r || !r.success || !r.data) { setEmpty('anag-card', 'Nessuna organizzazione', 'Completa l’onboarding per visualizzare l’anagrafica.', 'building-2'); return; }
            var o = r.data;
            var nis = ENTITY_LABEL[o.entity_type] || (o.entity_type ? esc(o.entity_type) : 'Da classificare');
            var fields = [
                ['Settore', o.sector || o.nis2_sector || '—'],
                ['Partita IVA', o.vat_number || '—'],
                ['Sede legale', [o.city, o.country].filter(Boolean).join(', ') || o.legal_address || '—'],
                ['Dipendenti', (o.employee_count != null && o.employee_count !== '') ? o.employee_count : '—'],
                ['Codice fiscale', o.fiscal_code || '—'],
                ['Classificazione NIS2', nis]
            ];
            var grid = fields.map(function (f) { return '<div class="f"><span>' + esc(f[0]) + '</span><b>' + esc(f[1]) + '</b></div>'; }).join('');
            card.innerHTML =
                '<div class="anag"><div class="anag-logo">' + esc(initials(o.name)) + '</div>' +
                '<div class="info"><div class="nm"><h3>' + esc(o.name || 'Organizzazione') + '</h3>' +
                '<span class="badge-nis">' + nis + '</span></div>' +
                '<div class="anag-grid">' + grid + '</div></div></div>';
        } catch (e) {
            setError('anag-card');
        }
    }

    // ── 5) Documenti istituzionali — nessun endpoint reale → stato vuoto onesto
    function loadDocs() {
        var card = document.getElementById('doc-card'); if (!card) return;
        setEmpty('doc-card', 'Documenti istituzionali', 'Gestisci Mission, Vision ed Etica nelle Impostazioni.', 'file-text');
    }

    // ── Init pubblico (chiamato dall'init pagina dopo checkAuth/loadSidebar) ─
    function initDashboard() {
        wireCalControls();
        renderDaily(); renderWeekly();          // render iniziale (eventi reali arriveranno e ri-renderizzano)
        loadStats();
        loadDeadlines();
        loadActivities();
        loadAnag();
        loadDocs();
    }

    window.initDashboard = initDashboard;
})();