{% extends "base.html" %}

{% block title %}Дашборд — InfoUser Monitor{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
    <h2>Компьютеры</h2>
    <div class="d-flex gap-2">
        <button type="button" class="btn btn-outline-success btn-sm" id="export-csv-btn">
            <i class="bi bi-download"></i> Экспорт CSV
        </button>
        <a href="/notifications" class="btn btn-outline-info btn-sm">
            <i class="bi bi-bell"></i> Уведомления {% if unread_count %}<span class="badge bg-danger">{{ unread_count }}</span>{% endif %}
        </a>
    </div>
</div>

<form id="filter-form" class="row g-2 mb-4 p-3 bg-white rounded shadow-sm" method="get" action="/">
    <div class="col-md-2">
        <select name="status" class="form-select form-select-sm">
            <option value="">Все статусы</option>
            <option value="online" {% if filters.status == 'online' %}selected{% endif %}>Online</option>
            <option value="offline" {% if filters.status == 'offline' %}selected{% endif %}>Offline</option>
        </select>
    </div>
    <div class="col-md-2">
        <input type="text" name="user" class="form-control form-control-sm" placeholder="Пользователь" value="{{ filters.user }}">
    </div>
    <div class="col-md-3">
        <input type="text" name="search" class="form-control form-control-sm" placeholder="Поиск по хосту/IP/OS" value="{{ filters.search }}">
    </div>
    <div class="col-md-2">
        <select name="sort" class="form-select form-select-sm">
            <option value="hostname" {% if filters.sort == 'hostname' %}selected{% endif %}>Сортировка: хост</option>
            <option value="last_seen" {% if filters.sort == 'last_seen' %}selected{% endif %}>Последний чек</option>
            <option value="current_user" {% if filters.sort == 'current_user' %}selected{% endif %}>Пользователь</option>
            <option value="status" {% if filters.sort == 'status' %}selected{% endif %}>Статус</option>
            <option value="current_cpu_percent" {% if filters.sort == 'current_cpu_percent' %}selected{% endif %}>CPU</option>
            <option value="current_ram_percent" {% if filters.sort == 'current_ram_percent' %}selected{% endif %}>RAM</option>
        </select>
    </div>
    <div class="col-md-1">
        <select name="order" class="form-select form-select-sm">
            <option value="asc" {% if filters.order == 'asc' %}selected{% endif %}>Asc</option>
            <option value="desc" {% if filters.order == 'desc' %}selected{% endif %}>Desc</option>
        </select>
    </div>
    <div class="col-md-2">
        <button type="submit" class="btn btn-primary btn-sm w-100">Применить</button>
    </div>
</form>

<table class="table table-hover align-middle" id="computers-table">
    <thead class="table-dark">
        <tr>
            <th>Хост</th>
            <th>Пользователь</th>
            <th>IP</th>
            <th>Статус</th>
            <th>CPU</th>
            <th>RAM</th>
            <th>Swap</th>
            <th>OS</th>
            <th>Последний чек</th>
            <th></th>
        </tr>
    </thead>
        <tbody>
        {% for c in computers %}
        <tr data-id="{{ c.id }}">
            <td><strong>{{ c.hostname }}</strong></td>
            <td>
                {% if c.current_user and ',' in c.current_user %}
                <span class="badge bg-info text-dark" title="{{ c.current_user }}">за ПК работают {{ c.current_user.split(',') | length }} пользователя</span>
                {% else %}
                {{ c.current_user or '-' }}
                {% endif %}
            </td>
            <td>{{ c.current_ip or '-' }}</td>
            <td>
                {% if c.status == 'online' %}
                <span class="badge bg-success">Online</span>
                {% else %}
                <span class="badge bg-secondary">Offline</span>
                {% endif %}
            </td>
            <td>{{ c.current_cpu_percent | round(1) if c.current_cpu_percent is not none else '-' }}%</td>
            <td>
                {% if c.current_ram_used_gb is not none and c.current_ram_total_gb is not none %}
                {{ c.current_ram_used_gb | round(1) }} / {{ c.current_ram_total_gb | round(1) }} GB
                {% else %}
                {{ c.current_ram_percent | round(1) if c.current_ram_percent is not none else '-' }}%
                {% endif %}
            </td>
            <td>{{ c.current_swap_percent | round(1) if c.current_swap_percent is not none else '-' }}%</td>
            <td>{{ c.os_info or '-' }}</td>
            <td class="last-seen">{{ c.last_seen | localtime }}</td>
            <td>
                <a href="/computers/{{ c.id }}" class="btn btn-sm btn-outline-primary">Детали</a>
                {% if user.role == 'admin' %}
                <button class="btn btn-sm btn-outline-danger delete-pc" data-id="{{ c.id }}" data-hostname="{{ c.hostname }}">Удалить</button>
                {% endif %}
            </td>
        </tr>
        {% endfor %}
    </tbody>
</table>

{% if not computers %}
<div class="alert alert-info">Пока нет данных. Установите и запустите агент на клиентских ПК.</div>
{% endif %}
{% endblock %}

{% block scripts %}
<script>
const isAdmin = {{ 'true' if user.role == 'admin' else 'false' }};

function formatCurrentUser(value) {
    if (!value) return '-';
    if (value.includes(',')) {
        const count = value.split(',').length;
        return `<span class="badge bg-info text-dark" title="${escapeHtml(value)}">за ПК работают ${count} пользователя</span>`;
    }
    return escapeHtml(value);
}

function formatServerTime(isoString) {
    if (!isoString) return '-';
    const d = new Date(isoString);
    const parts = new Intl.DateTimeFormat('sv-SE', {
        timeZone: window.SERVER_TIMEZONE,
        year: 'numeric', month: '2-digit', day: '2-digit',
        hour: '2-digit', minute: '2-digit',
        hour12: false,
    }).formatToParts(d);
    const p = {};
    for (const part of parts) {
        if (part.type !== 'literal') p[part.type] = part.value;
    }
    return `${p.year}-${p.month}-${p.day} ${p.hour}:${p.minute}`;
}

function currentQuery() {
    return new URLSearchParams(window.location.search).toString();
}

async function deleteComputer(id, hostname) {
    if (!confirm(`Удалить ПК ${hostname}?`)) return;
    const res = await fetch(`/api/computers/${id}`, {method: 'DELETE', credentials: 'include'});
    if (res.ok) location.reload();
    else if (res.status === 401) location.href = '/login';
    else alert('Ошибка удаления');
}

async function exportCsv() {
    const res = await fetch('/api/computers/export/csv?' + currentQuery(), {credentials: 'include'});
    if (!res.ok) {
        if (res.status === 401) location.href = '/login';
        else alert('Ошибка экспорта');
        return;
    }
    const blob = await res.blob();
    const url = window.URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    const disposition = res.headers.get('content-disposition');
    let filename = 'computers.csv';
    if (disposition) {
        const match = disposition.match(/filename="?([^";]+)"?/);
        if (match) filename = match[1];
    }
    a.download = filename;
    document.body.appendChild(a);
    a.click();
    a.remove();
    window.URL.revokeObjectURL(url);
}

document.getElementById('export-csv-btn').addEventListener('click', exportCsv);

document.querySelectorAll('.delete-pc').forEach(btn => {
    btn.addEventListener('click', () => deleteComputer(btn.dataset.id, btn.dataset.hostname));
});

async function loadDashboard() {
    try {
        const res = await fetch('/api/computers?' + currentQuery(), {credentials: 'include'});
        if (!res.ok) return location.reload();
        const data = await res.json();
        const tbody = document.querySelector('#computers-table tbody');
        tbody.innerHTML = data.map(c => `
            <tr data-id="${c.id}">
                <td><strong>${escapeHtml(c.hostname)}</strong></td>
                <td>${formatCurrentUser(c.current_user)}</td>
                <td>${escapeHtml(c.current_ip || '-')}</td>
                <td>${c.status === 'online' ? '<span class="badge bg-success">Online</span>' : '<span class="badge bg-secondary">Offline</span>'}</td>
                <td>${c.current_cpu_percent != null ? c.current_cpu_percent.toFixed(1) : '-'}%</td>
                <td>${c.current_ram_used_gb != null && c.current_ram_total_gb != null ? `${c.current_ram_used_gb.toFixed(1)} / ${c.current_ram_total_gb.toFixed(1)} GB` : (c.current_ram_percent != null ? c.current_ram_percent.toFixed(1) + '%' : '-')}</td>
                <td>${c.current_swap_percent != null ? c.current_swap_percent.toFixed(1) : '-'}%</td>
                <td>${escapeHtml(c.os_info || '-')}</td>
                <td class="last-seen">${formatServerTime(c.last_seen)}</td>
                <td>
                    <a href="/computers/${c.id}" class="btn btn-sm btn-outline-primary">Детали</a>
                    ${isAdmin ? `<button class="btn btn-sm btn-outline-danger delete-pc" data-id="${c.id}" data-hostname="${escapeHtml(c.hostname)}">Удалить</button>` : ''}
                </td>
            </tr>
        `).join('');
        document.querySelectorAll('.delete-pc').forEach(btn => {
            btn.addEventListener('click', () => deleteComputer(btn.dataset.id, btn.dataset.hostname));
        });
    } catch (e) {
        console.error('Dashboard refresh failed', e);
    }
}
setInterval(loadDashboard, 60000);
</script>
{% endblock %}