{% extends "base.html" %}
{% block title %}Backups - SQLite DBaaS{% endblock %}
{% block content %}
<div class="page-header">
    <div>
        <h1 class="page-title">Backups</h1>
        <p class="page-subtitle">Manage database snapshots and remote storage</p>
    </div>
    <a href="/admin/dashboard" class="m3-button m3-button--text">
        <span class="material-symbols-outlined">arrow_back</span>
        Dashboard
    </a>
</div>

<!-- HF Diagnostics -->
<div class="m3-card">
    <div class="m3-card-header">
        <div class="m3-card-icon">
            <span class="material-symbols-outlined">cloud_sync</span>
        </div>
        <div>
            <div class="m3-card-title">HuggingFace Setup</div>
            <div class="m3-card-subtitle">Remote backup configuration</div>
        </div>
    </div>
    
    <div class="diag-list">
        {% for check in hf_diagnosis.checks %}
        <div class="diag-item">
            <div class="diag-status {% if '✅' in check.status %}success{% elif '❌' in check.status %}error{% endif %}">
                <span class="material-symbols-outlined">
                    {% if '✅' in check.status %}check{% elif '❌' in check.status %}close{% else %}info{% endif %}
                </span>
            </div>
            <div class="diag-content">
                <div class="diag-name">{{ check.name }}</div>
                <div class="diag-value">{{ check.value }}</div>
            </div>
        </div>
        {% endfor %}
    </div>
</div>

<!-- Create Backup -->
<div class="m3-card">
    <div class="m3-card-header">
        <div class="m3-card-icon">
            <span class="material-symbols-outlined">add_circle</span>
        </div>
        <div>
            <div class="m3-card-title">Create Backup</div>
            <div class="m3-card-subtitle">Local snapshot or remote upload</div>
        </div>
    </div>
    
    <div class="m3-button-group">
        <form method="POST" action="/admin/backups/create" style="display: inline;">
            <input type="hidden" name="backup_type" value="snapshot">
            <button type="submit" class="m3-button m3-button--outlined">
                <span class="material-symbols-outlined">photo_camera</span>
                Snapshot
            </button>
        </form>
        
        <form method="POST" action="/admin/backups/create" style="display: inline;">
            <input type="hidden" name="backup_type" value="compressed">
            <button type="submit" class="m3-button m3-button--outlined">
                <span class="material-symbols-outlined">compress</span>
                Compressed
            </button>
        </form>
        
        <form method="POST" action="/admin/backups/create" style="display: inline;">
            <input type="hidden" name="backup_type" value="vacuum">
            <button type="submit" class="m3-button m3-button--outlined">
                <span class="material-symbols-outlined">cleaning_services</span>
                VACUUM
            </button>
        </form>
        
        <form method="POST" action="/admin/backups/create" style="display: inline;">
            <input type="hidden" name="backup_type" value="hf_upload">
            <button type="submit" class="m3-button m3-button--filled">
                <span class="material-symbols-outlined">cloud_upload</span>
                Upload to HF
            </button>
        </form>
    </div>
</div>

<!-- Local Snapshots -->
<div class="m3-card">
    <div class="m3-card-header">
        <div class="m3-card-icon">
            <span class="material-symbols-outlined">folder</span>
        </div>
        <div>
            <div class="m3-card-title">Local Snapshots</div>
            <div class="m3-card-subtitle">{{ backups.snapshot_dir }}</div>
        </div>
    </div>
    
    {% if backups.local_snapshots %}
    <div class="m3-table-container">
        <table class="m3-table">
            <thead>
                <tr>
                    <th>Filename</th>
                    <th>Size</th>
                    <th>Modified</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody>
                {% for snapshot in backups.local_snapshots %}
                <tr>
                    <td class="mono">{{ snapshot.name }}</td>
                    <td>{{ snapshot.size_mb }} MB</td>
                    <td>{{ snapshot.modified }}</td>
                    <td>
                        <a href="/admin/backups/download/{{ snapshot.name }}" class="m3-button m3-button--text">
                            <span class="material-symbols-outlined">download</span>
                        </a>
                    </td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
    {% else %}
    <div class="empty-state">
        <span class="material-symbols-outlined empty-icon">folder_off</span>
        <div class="empty-title">No snapshots yet</div>
        <div class="empty-description">Create your first snapshot above</div>
    </div>
    {% endif %}
</div>

<!-- Backup Strategy -->
<div class="m3-card">
    <div class="m3-card-header">
        <div class="m3-card-icon">
            <span class="material-symbols-outlined">layers</span>
        </div>
        <div>
            <div class="m3-card-title">3-Layer Backup Strategy</div>
        </div>
    </div>
    
    <div class="strategy-layers">
        <div class="strategy-layer">
            <div class="layer-number">1</div>
            <div class="layer-content">
                <h4>Litestream — Real-time</h4>
                <p>Automatic replication every second. Max 1s data loss. Local file replica.</p>
            </div>
        </div>
        <div class="strategy-layer">
            <div class="layer-number">2</div>
            <div class="layer-content">
                <h4>Python Backup — On-demand</h4>
                <p>Atomic snapshots using sqlite3.backup(). Gzip compressed. Consistent while DB is in use.</p>
            </div>
        </div>
        <div class="strategy-layer">
            <div class="layer-number">3</div>
            <div class="layer-content">
                <h4>HF Bucket — Persistent</h4>
                <p>Remote storage on HuggingFace. 100GB free. Survives container restarts.</p>
            </div>
        </div>
    </div>
</div>

<!-- Quick API Test -->
<div class="m3-card">
    <div class="m3-card-header">
        <div class="m3-card-icon">
            <span class="material-symbols-outlined">api</span>
        </div>
        <div>
            <div class="m3-card-title">API Endpoints</div>
            <div class="m3-card-subtitle">For programmatic access</div>
        </div>
    </div>
    
    <div class="m3-code-block">GET  /admin/api/diagnostics   - Check HF setup
POST /admin/api/backup/test     - Test backup creation
POST /admin/api/backup/upload   - Upload to HF Bucket</div>
</div>
{% endblock %}