{% extends "admin/base_site.html" %}
{% load static %}

{% block title %}爬虫状态 - {{ site_title|default:_('Django site admin') }}{% endblock %}

{% block extrastyle %}
    <style>
        .status-card {
            background: white;
            border: 1px solid #ddd;
            border-radius: 8px;
            padding: 20px;
            margin: 20px 0;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .status-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }

        .status-title {
            font-size: 24px;
            font-weight: bold;
            color: #333;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .stat-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
        }

        .stat-number {
            font-size: 32px;
            font-weight: bold;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            opacity: 0.9;
        }

        .nodes-section, .batches-section {
            margin-top: 30px;
        }

        .section-title {
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 15px;
            color: #333;
        }

        .node-item, .batch-item {
            background: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 6px;
            padding: 15px;
            margin-bottom: 10px;
        }

        .node-header, .batch-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }

        .node-name, .batch-id {
            font-weight: bold;
            color: #333;
        }

        .node-status, .batch-status {
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: bold;
        }

        .status-active {
            background: #d4edda;
            color: #155724;
        }

        .status-running {
            background: #fff3cd;
            color: #856404;
        }

        .status-completed {
            background: #d1ecf1;
            color: #0c5460;
        }

        .status-failed {
            background: #f8d7da;
            color: #721c24;
        }

        .node-details, .batch-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 10px;
            font-size: 14px;
        }

        .detail-item {
            display: flex;
            justify-content: space-between;
        }

        .detail-label {
            color: #666;
        }

        .detail-value {
            font-weight: bold;
            color: #333;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: #e9ecef;
            border-radius: 4px;
            overflow: hidden;
            margin-top: 10px;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #28a745, #20c997);
            transition: width 0.3s ease;
        }

        .refresh-btn {
            background: #007bff;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }

        .refresh-btn:hover {
            background: #0056b3;
        }

        .no-data {
            text-align: center;
            color: #666;
            padding: 40px;
            font-style: italic;
        }
    </style>
{% endblock %}

{% block content %}
    <div class="status-card">
        <div class="status-header">
            <h1 class="status-title">爬虫状态监控</h1>
            <button class="refresh-btn" onclick="location.reload()">刷新</button>
        </div>

        <!-- 统计卡片 -->
        <div class="stats-grid">
            <div class="stat-card">
                <div class="stat-number">{{ task_stats.total_nodes }}</div>
                <div class="stat-label">活跃节点</div>
            </div>
            <div class="stat-card">
                <div class="stat-number">{{ task_stats.active_tasks }}</div>
                <div class="stat-label">运行中任务</div>
            </div>
            <div class="stat-card">
                <div class="stat-number">{{ task_stats.total_batches }}</div>
                <div class="stat-label">总批次</div>
            </div>
            <div class="stat-card">
                <div class="stat-number">{{ nodes|length }}</div>
                <div class="stat-label">在线节点</div>
            </div>
        </div>

        <!-- 节点状态 -->
        <div class="nodes-section">
            <h2 class="section-title">爬虫节点状态</h2>
            {% if nodes %}
                {% for node in nodes %}
                    <div class="node-item">
                        <div class="node-header">
                            <span class="node-name">{{ node.node_id }}</span>
                            <span class="node-status status-active">{{ node.status }}</span>
                        </div>
                        <div class="node-details">
                            <div class="detail-item">
                                <span class="detail-label">活跃任务:</span>
                                <span class="detail-value">{{ node.active_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">完成任务:</span>
                                <span class="detail-value">{{ node.completed_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">失败任务:</span>
                                <span class="detail-value">{{ node.failed_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">最后心跳:</span>
                                <span class="detail-value">
                            {% if node.last_heartbeat %}
                                {{ node.last_heartbeat|date:"H:i:s" }}
                            {% else %}
                                未知
                            {% endif %}
                        </span>
                            </div>
                        </div>
                    </div>
                {% endfor %}
            {% else %}
                <div class="no-data">
                    暂无活跃的爬虫节点
                </div>
            {% endif %}
        </div>

        <!-- 批次状态 -->
        <div class="batches-section">
            <h2 class="section-title">最近批次</h2>
            {% if batches %}
                {% for batch in batches %}
                    <div class="batch-item">
                        <div class="batch-header">
                            <span class="batch-id">{{ batch.batch_id }}</span>
                            <span class="batch-status status-{{ batch.status }}">
                        {% if batch.status == 'running' %}
                            运行中
                        {% elif batch.status == 'completed' %}
                            已完成
                        {% elif batch.status == 'failed' %}
                            失败
                        {% else %}
                            {{ batch.status }}
                        {% endif %}
                    </span>
                        </div>
                        <div class="batch-details">
                            <div class="detail-item">
                                <span class="detail-label">总任务:</span>
                                <span class="detail-value">{{ batch.total_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">已完成:</span>
                                <span class="detail-value">{{ batch.completed_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">失败:</span>
                                <span class="detail-value">{{ batch.failed_tasks }}</span>
                            </div>
                            <div class="detail-item">
                                <span class="detail-label">进度:</span>
                                <span class="detail-value">{{ batch.progress|floatformat:1 }}%</span>
                            </div>
                        </div>
                        {% if batch.status == 'running' %}
                            <div class="progress-bar">
                                <div class="progress-fill" style="width: {{ batch.progress }}%"></div>
                            </div>
                        {% endif %}
                    </div>
                {% endfor %}
            {% else %}
                <div class="no-data">
                    暂无批次记录
                </div>
            {% endif %}
        </div>
    </div>

    <script>
        // 自动刷新页面
        setTimeout(function () {
            location.reload();
        }, 30000); // 30秒刷新一次
    </script>
{% endblock %}