{% extends 'base.html' %}
{% load static %}

{% block title %}Nodes - Inveterate{% endblock %}

{% block content %}
<div x-data="nodeList()" x-init="init()">
    <div class="mb-8 flex justify-between items-center">
        <div>
            <h1 class="text-3xl font-bold text-gray-900">Proxmox Nodes</h1>
            <p class="mt-2 text-gray-600">Manage your Proxmox nodes</p>
        </div>
        <a href="/admin/inveterate/node/add/" class="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-md text-sm font-medium">
            + Add Node
        </a>
    </div>

    <!-- Loading State -->
    <div x-show="loading" class="flex justify-center py-12">
        <div class="spinner"></div>
    </div>

    <!-- Nodes Grid -->
    <div x-show="!loading" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
        <template x-for="node in nodes" :key="node.id">
            <div class="bg-white rounded-lg shadow-md p-6 card-hover">
                <div class="flex justify-between items-start mb-4">
                    <div>
                        <h3 class="text-lg font-semibold text-gray-900" x-text="node.name"></h3>
                        <p class="text-sm text-gray-500" x-text="`Cluster: ${node.cluster_name || 'N/A'}`"></p>
                    </div>
                    <span x-show="nodeStatus[node.id]"
                          :class="`px-2 py-1 rounded text-xs font-semibold ${nodeStatus[node.id]?.online ? 'bg-green-100 text-green-800' : 'bg-red-100 text-red-800'}`"
                          x-text="nodeStatus[node.id]?.online ? 'Online' : 'Offline'"></span>
                </div>

                <!-- Node Resources -->
                <div class="space-y-3 mb-4">
                    <div>
                        <div class="flex justify-between text-sm mb-1">
                            <span class="text-gray-600">CPU:</span>
                            <span class="font-medium" x-text="nodeStatus[node.id]?.cpu ? `${(nodeStatus[node.id].cpu * 100).toFixed(1)}%` : 'N/A'"></span>
                        </div>
                        <div x-show="nodeStatus[node.id]?.cpu" class="resource-bar">
                            <div class="resource-bar-fill"
                                 :class="getResourceClass(nodeStatus[node.id].cpu * 100)"
                                 :style="`width: ${nodeStatus[node.id].cpu * 100}%`"></div>
                        </div>
                    </div>

                    <div>
                        <div class="flex justify-between text-sm mb-1">
                            <span class="text-gray-600">Memory:</span>
                            <span class="font-medium" x-text="nodeStatus[node.id]?.memory ? `${(nodeStatus[node.id].memory.usage * 100).toFixed(1)}%` : 'N/A'"></span>
                        </div>
                        <div x-show="nodeStatus[node.id]?.memory" class="resource-bar">
                            <div class="resource-bar-fill"
                                 :class="getResourceClass(nodeStatus[node.id].memory?.usage * 100)"
                                 :style="`width: ${nodeStatus[node.id].memory?.usage * 100}%`"></div>
                        </div>
                    </div>

                    <div class="flex justify-between text-sm">
                        <span class="text-gray-600">Uptime:</span>
                        <span class="font-medium" x-text="nodeStatus[node.id]?.uptime || 'N/A'"></span>
                    </div>
                </div>

                <div class="flex space-x-2">
                    <button @click="refreshNodeStatus(node.id)"
                            class="flex-1 bg-blue-600 hover:bg-blue-700 text-white py-2 px-4 rounded-md text-sm font-medium">
                        Refresh
                    </button>
                    <a :href="`/admin/inveterate/node/${node.id}/change/`"
                       class="bg-gray-600 hover:bg-gray-700 text-white py-2 px-4 rounded-md text-sm font-medium">
                        Edit
                    </a>
                </div>
            </div>
        </template>
    </div>

    <!-- Empty State -->
    <div x-show="!loading && nodes.length === 0" class="text-center py-12 bg-white rounded-lg shadow-md">
        <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 3v2m6-2v2M9 19v2m6-2v2M5 9H3m2 6H3m18-6h-2m2 6h-2M7 19h10a2 2 0 002-2V7a2 2 0 00-2-2H7a2 2 0 00-2 2v10a2 2 0 002 2zM9 9h6v6H9V9z"/>
        </svg>
        <h3 class="mt-2 text-sm font-medium text-gray-900">No nodes configured</h3>
        <p class="mt-1 text-sm text-gray-500">Add nodes from your Proxmox clusters.</p>
        <div class="mt-6">
            <a href="/admin/inveterate/node/add/" class="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-md text-sm font-medium">
                + Add Node
            </a>
        </div>
    </div>
</div>

<script>
function nodeList() {
    return {
        nodes: [],
        nodeStatus: {},
        loading: true,

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

        async loadNodes() {
            try {
                const response = await api.getNodes();
                this.nodes = response.results || response;
                // Load status for each node
                this.nodes.forEach(node => {
                    this.loadNodeStatus(node.id);
                });
            } catch (error) {
                showError('Failed to load nodes: ' + error.message);
            } finally {
                this.loading = false;
            }
        },

        async loadNodeStatus(nodeId) {
            try {
                const status = await api.getNodeStatus(nodeId);
                this.nodeStatus[nodeId] = status;
            } catch (error) {
                console.error(`Failed to load node ${nodeId} status:`, error);
                this.nodeStatus[nodeId] = { online: false };
            }
        },

        async refreshNodeStatus(nodeId) {
            await this.loadNodeStatus(nodeId);
            showSuccess('Status refreshed');
        },

        getResourceClass(percentage) {
            if (percentage > 80) return 'high';
            if (percentage > 60) return 'medium';
            return 'low';
        }
    }
}
</script>
{% endblock %}