{% extends "base.html" %}
{% block content %}
<div x-data="ceoDashboard()" x-init="init()">
    <div class="mb-6">
        <h1 class="text-2xl font-bold text-gray-900">Executive Dashboard</h1>
        <p class="text-gray-500 mt-1">Read-only strategic overview</p>
    </div>

    <!-- Executive KPI Cards -->
    <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-8">
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Open Tickets</p>
            <p class="text-3xl font-bold text-gray-900 mt-1" x-text="kpi.openTickets || 0"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Critical (Urgent)</p>
            <p class="text-3xl font-bold text-red-600 mt-1" x-text="kpi.criticalCount || 0"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">SLA Compliance</p>
            <p class="text-3xl font-bold mt-1" :class="kpi.slaCompliance >= 90 ? 'text-green-600' : kpi.slaCompliance >= 70 ? 'text-yellow-600' : 'text-red-600'" x-text="(kpi.slaCompliance || 0) + '%'"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Avg Resolution</p>
            <p class="text-3xl font-bold text-gray-900 mt-1" x-text="kpi.avgResolutionTime || '—'"></p>
        </div>
    </div>

    <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-8">
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Avg Response</p>
            <p class="text-2xl font-bold text-gray-900 mt-1" x-text="kpi.avgResponseTime || '—'"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Reopened This Week</p>
            <p class="text-2xl font-bold text-orange-600 mt-1" x-text="kpi.reopenedThisWeek || 0"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Total Tickets</p>
            <p class="text-2xl font-bold text-gray-900 mt-1" x-text="kpi.totalTickets || 0"></p>
        </div>
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-4">
            <p class="text-xs text-gray-500 font-medium uppercase tracking-wide">Completion Rate</p>
            <p class="text-2xl font-bold mt-1" :class="kpi.completionRate >= 70 ? 'text-green-600' : 'text-yellow-600'" x-text="(kpi.completionRate || 0) + '%'"></p>
        </div>
    </div>

    <!-- Charts Row -->
    <div class="grid grid-cols-1 lg:grid-cols-2 gap-6 mb-8">
        <!-- Complaints by Property (Simple Bar) -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
            <h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wide mb-4">Complaints by Property</h3>
            <div class="flex items-end space-x-6 h-40 px-2">
                <div class="flex-1 flex flex-col items-center">
                    <span class="text-lg font-bold text-denya-600" x-text="charts.byProperty?.east || 0"></span>
                    <div class="w-full bg-denya-200 rounded-t-lg mt-1 transition-all" :style="'height: ' + Math.max((charts.byProperty?.east || 0) / Math.max(charts.byProperty?.max || 1, 1) * 120, 8) + 'px'" style="height: 8px;"></div>
                    <span class="text-xs text-gray-500 mt-2">East</span>
                </div>
                <div class="flex-1 flex flex-col items-center">
                    <span class="text-lg font-bold text-denya-600" x-text="charts.byProperty?.west || 0"></span>
                    <div class="w-full bg-denya-400 rounded-t-lg mt-1 transition-all" :style="'height: ' + Math.max((charts.byProperty?.west || 0) / Math.max(charts.byProperty?.max || 1, 1) * 120, 8) + 'px'" style="height: 8px;"></div>
                    <span class="text-xs text-gray-500 mt-2">West</span>
                </div>
            </div>
        </div>

        <!-- Complaints by Category -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
            <h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wide mb-4">Complaints by Category</h3>
            <div class="space-y-2 max-h-64 overflow-y-auto">
                <template x-for="item in charts.byCategory" :key="item.name">
                    <div class="flex items-center space-x-2">
                        <span class="text-xs text-gray-600 w-20 truncate" x-text="item.name"></span>
                        <div class="flex-1 bg-gray-100 rounded-full h-4 overflow-hidden">
                            <div class="h-full rounded-full transition-all" :style="'width: ' + (item.count / Math.max(charts.byCategoryMax, 1) * 100) + '%'" :class="item.color || 'bg-denya-500'"></div>
                        </div>
                        <span class="text-xs font-medium text-gray-600 w-8 text-right" x-text="item.count"></span>
                    </div>
                </template>
                <div x-show="!charts.byCategory?.length" class="text-gray-400 text-sm py-6 text-center">No data yet</div>
            </div>
        </div>
    </div>

    <div class="grid grid-cols-1 lg:grid-cols-2 gap-6 mb-8">
        <!-- Priority Distribution -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
            <h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wide mb-4">Tickets by Priority</h3>
            <div class="space-y-3">
                <div class="flex items-center justify-between">
                    <span class="text-sm font-medium text-red-600">🔴 Urgent</span>
                    <span class="text-2xl font-bold" x-text="charts.byPriority?.urgent || 0"></span>
                </div>
                <div class="flex items-center justify-between">
                    <span class="text-sm font-medium text-orange-600">🟠 High</span>
                    <span class="text-2xl font-bold" x-text="charts.byPriority?.high || 0"></span>
                </div>
                <div class="flex items-center justify-between">
                    <span class="text-sm font-medium text-yellow-600">🟡 Medium</span>
                    <span class="text-2xl font-bold" x-text="charts.byPriority?.medium || 0"></span>
                </div>
                <div class="flex items-center justify-between">
                    <span class="text-sm font-medium text-green-600">🟢 Low</span>
                    <span class="text-2xl font-bold" x-text="charts.byPriority?.low || 0"></span>
                </div>
            </div>
        </div>

        <!-- Monthly Trends (Simple) -->
        <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
            <h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wide mb-4">Monthly Trends</h3>
            <div class="flex items-end space-x-1 h-40 overflow-x-auto pb-2">
                <template x-for="(item, idx) in charts.monthlyTrend" :key="idx">
                    <div class="flex-1 flex flex-col items-center min-w-[30px]">
                        <span class="text-xs font-medium text-gray-600 mb-1" x-text="item.count"></span>
                        <div class="w-full bg-denya-300 rounded-t transition-all" :style="'height: ' + Math.max(item.count / Math.max(charts.monthlyMax || 1, 1) * 100, 4) + 'px'"></div>
                        <span class="text-xs text-gray-400 mt-1" x-text="item.month"></span>
                    </div>
                </template>
                <div x-show="!charts.monthlyTrend?.length" class="text-gray-400 text-sm py-6 text-center w-full">No data yet</div>
            </div>
        </div>
    </div>

    <!-- Risk Indicators -->
    <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5 mb-8">
        <h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wide mb-4">Risk Indicators</h3>
        <div class="grid grid-cols-2 md:grid-cols-4 gap-4">
            <div class="p-3 rounded-lg" :class="indicators.openEmergencies > 0 ? 'bg-red-50 border border-red-200' : 'bg-green-50 border border-green-200'">
                <div class="flex items-center space-x-2">
                    <div class="w-3 h-3 rounded-full" :class="indicators.openEmergencies > 0 ? 'bg-red-500 animate-pulse' : 'bg-green-500'"></div>
                    <span class="text-xs font-medium">Open Emergencies</span>
                </div>
                <p class="text-lg font-bold mt-1" x-text="indicators.openEmergencies || 0"></p>
            </div>
            <div class="p-3 rounded-lg" :class="indicators.reopenedThisWeek > 0 ? 'bg-orange-50 border border-orange-200' : 'bg-green-50 border border-green-200'">
                <div class="flex items-center space-x-2">
                    <div class="w-3 h-3 rounded-full" :class="indicators.reopenedThisWeek > 0 ? 'bg-orange-500' : 'bg-green-500'"></div>
                    <span class="text-xs font-medium">Reopened This Week</span>
                </div>
                <p class="text-lg font-bold mt-1" x-text="indicators.reopenedThisWeek || 0"></p>
            </div>
            <div class="p-3 rounded-lg" :class="indicators.overdueJobs > 0 ? 'bg-red-50 border border-red-200' : 'bg-green-50 border border-green-200'">
                <div class="flex items-center space-x-2">
                    <div class="w-3 h-3 rounded-full" :class="indicators.overdueJobs > 0 ? 'bg-red-500' : 'bg-green-500'"></div>
                    <span class="text-xs font-medium">Overdue (Past SLA)</span>
                </div>
                <p class="text-lg font-bold mt-1" x-text="indicators.overdueJobs || 0"></p>
            </div>
            <div class="p-3 rounded-lg" :class="indicators.pendingVerification > 0 ? 'bg-yellow-50 border border-yellow-200' : 'bg-green-50 border border-green-200'">
                <div class="flex items-center space-x-2">
                    <div class="w-3 h-3 rounded-full" :class="indicators.pendingVerification > 0 ? 'bg-yellow-500' : 'bg-green-500'"></div>
                    <span class="text-xs font-medium">Pending Verification</span>
                </div>
                <p class="text-lg font-bold mt-1" x-text="indicators.pendingVerification || 0"></p>
            </div>
        </div>
    </div>
</div>

<script>
    function ceoDashboard() {
        return {
            kpi: {},
            charts: { byProperty: {}, byCategory: [], byPriority: {}, monthlyTrend: [], byCategoryMax: 1, monthlyMax: 1 },
            indicators: {},

            async init() {
                await this.loadData();
            },

            async loadData() {
                try {
                    const allData = await app().apiGet('/api/tickets?page_size=500');
                    if (!allData?.items) return;
                    const all = allData.items;
                    const total = allData.total || all.length;

                    // Basic KPIs
                    const open = all.filter(t => !['Closed', 'Completed'].includes(t.status));
                    const closed = all.filter(t => ['Closed', 'Completed'].includes(t.status));
                    const urgent = all.filter(t => t.priority === 'urgent');
                    const withSLA = all.filter(t => t.sla_deadline);
                    const slaMet = withSLA.filter(t => new Date(t.sla_deadline) > new Date() || ['Closed', 'Completed'].includes(t.status));

                    // Monthly restored
                    const oneWeekAgo = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000);
                    const reopenedThisWeek = all.filter(t => t.status === 'Reopened' && new Date(t.updated_at) >= oneWeekAgo).length;

                    this.kpi = {
                        openTickets: open.length,
                        criticalCount: urgent.length,
                        slaCompliance: withSLA.length ? Math.round((slaMet.length / withSLA.length) * 100) : 100,
                        avgResolutionTime: this.calcAvgResolution(all),
                        avgResponseTime: this.calcAvgResponse(all),
                        reopenedThisWeek,
                        totalTickets: total,
                        completionRate: total ? Math.round((closed.length / total) * 100) : 0,
                    };

                    // Chart data
                    const byPriority = { urgent: 0, high: 0, medium: 0, low: 0 };
                    open.forEach(t => { if (t.priority) byPriority[t.priority]++; });
                    this.charts.byPriority = byPriority;

                    // Monthly trends (last 6 months)
                    const months = {};
                    const monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
                    all.forEach(t => {
                        const d = new Date(t.created_at);
                        const key = `${d.getFullYear()}-${d.getMonth()}`;
                        months[key] = (months[key] || 0) + 1;
                    });
                    const sortedMonths = Object.keys(months).sort().slice(-6);
                    this.charts.monthlyTrend = sortedMonths.map(k => {
                        const [y, m] = k.split('-').map(Number);
                        return { month: monthNames[m], count: months[k] };
                    });
                    this.charts.monthlyMax = Math.max(...this.charts.monthlyTrend.map(m => m.count), 1);

                    // By property — load units once and compute from ticket data
                    const propData = { east: 0, west: 0 };
                    try {
                        const units = await app().apiGet('/api/tickets/units');
                        if (units && units.length > 0) {
                            const unitPropertyMap = {};
                            units.forEach(u => { unitPropertyMap[u.id] = u.property; });
                            all.forEach(t => {
                                if (t.unit_id && unitPropertyMap[t.unit_id]) {
                                    const p = unitPropertyMap[t.unit_id].toLowerCase();
                                    if (p === 'east') propData.east++;
                                    else if (p === 'west') propData.west++;
                                }
                            });
                        }
                    } catch (e) { console.error('Property stats error', e); }
                    this.charts.byProperty = { east: propData.east, west: propData.west, max: Math.max(propData.east, propData.west, 1) };

                    // By category — use categories endpoint
                    try {
                        const cats = await app().apiGet('/api/tickets/categories/flat');
                        const catCounts = {};
                        all.forEach(t => {
                            if (t.category_id) {
                                const cat = cats?.find(c => c.id === t.category_id);
                                const name = cat ? cat.name : `Cat #${t.category_id}`;
                                catCounts[name] = (catCounts[name] || 0) + 1;
                            }
                        });
                        const colors = ['bg-blue-500', 'bg-green-500', 'bg-yellow-500', 'bg-red-500', 'bg-purple-500', 'bg-pink-500', 'bg-indigo-500', 'bg-teal-500'];
                        this.charts.byCategory = Object.entries(catCounts)
                            .sort((a, b) => b[1] - a[1])
                            .slice(0, 10)
                            .map(([name, count], i) => ({ name, count, color: colors[i % colors.length] }));
                        this.charts.byCategoryMax = Math.max(...this.charts.byCategory.map(c => c.count), 1);
                    } catch (e) { console.error('Category stats error', e); }

                    // Risk indicators
                    this.indicators = {
                        openEmergencies: urgent.filter(t => !['Closed', 'Completed'].includes(t.status)).length,
                        reopenedThisWeek,
                        overdueJobs: open.filter(t => t.sla_deadline && new Date(t.sla_deadline) < new Date()).length,
                        pendingVerification: all.filter(t => ['Completed', 'On-Field Verification'].includes(t.status)).length,
                    };

                } catch (e) { console.error('CEO data load error', e); }
            },

            calcAvgResponse(all) {
                const open = all.filter(t => !['Closed', 'Completed'].includes(t.status));
                if (!open.length) return '—';
                const avgHrs = open.reduce((sum, t) => sum + Math.min((new Date() - new Date(t.created_at)) / (1000 * 60 * 60), 168), 0) / open.length;
                if (avgHrs < 1) return `${Math.round(avgHrs * 60)}m`;
                return `${Math.round(avgHrs)}h`;
            },

            calcAvgResolution(all) {
                const closed = all.filter(t => ['Closed', 'Completed'].includes(t.status) && t.created_at && t.updated_at);
                if (!closed.length) return '—';
                const avgHrs = closed.reduce((sum, t) => {
                    const diff = (new Date(t.updated_at) - new Date(t.created_at)) / (1000 * 60 * 60);
                    return sum + diff;
                }, 0) / closed.length;
                if (avgHrs < 1) return `${Math.round(avgHrs * 60)}m`;
                return `${Math.round(avgHrs)}h`;
            }
        }
    }
</script>
{% endblock %}