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

{% block title %}Backup & Restore{% endblock %}

{% block css %}
<link href="{% static 'assets/plugins/datatables.net-bs5/css/dataTables.bootstrap5.min.css' %}" rel="stylesheet" />
{% endblock %}

{% block content %}
<div id="content" class="app-content">
    <div class="container">
        <ul class="breadcrumb">
            <li class="breadcrumb-item"><a href="{% url 'core:dashboard' %}">Dashboard</a></li>
            <li class="breadcrumb-item active">Backup & Restore</li>
        </ul>
        
        <div class="row align-items-center mb-3">
            <div class="col">
                <h1 class="page-header">Backup & Restore</h1>
                <p class="text-muted">Manage system backups and data recovery operations</p>
            </div>
            <div class="col-auto">
                <button type="button" class="btn btn-primary" onclick="createBackup()">
                    <i class="fa fa-plus me-2"></i>Create Backup
                </button>
            </div>
        </div>
        
        <!-- Backup Status -->
        <div class="row mb-4">
            <div class="col-md-3">
                <div class="card text-center">
                    <div class="card-body">
                        <div class="w-60px h-60px bg-primary bg-opacity-20 d-flex align-items-center justify-content-center rounded-circle mx-auto mb-3">
                            <i class="fa fa-database fa-2x text-primary"></i>
                        </div>
                        <h5>Total Backups</h5>
                        <div class="fs-24px fw-600 text-primary">{{ total_backups }}</div>
                        <div class="text-muted small">All time</div>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="card text-center">
                    <div class="card-body">
                        <div class="w-60px h-60px bg-success bg-opacity-20 d-flex align-items-center justify-content-center rounded-circle mx-auto mb-3">
                            <i class="fa fa-check-circle fa-2x text-success"></i>
                        </div>
                        <h5>Last Backup</h5>
                        <div class="fs-16px fw-600 text-success">{{ last_backup_date|date:"M d, Y" }}</div>
                        <div class="text-muted small">{{ last_backup_time_ago }}</div>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="card text-center">
                    <div class="card-body">
                        <div class="w-60px h-60px bg-info bg-opacity-20 d-flex align-items-center justify-content-center rounded-circle mx-auto mb-3">
                            <i class="fa fa-hdd fa-2x text-info"></i>
                        </div>
                        <h5>Storage Used</h5>
                        <div class="fs-20px fw-600 text-info">{{ total_backup_size }}</div>
                        <div class="text-muted small">{{ available_space }} available</div>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="card text-center">
                    <div class="card-body">
                        <div class="w-60px h-60px bg-warning bg-opacity-20 d-flex align-items-center justify-content-center rounded-circle mx-auto mb-3">
                            <i class="fa fa-clock fa-2x text-warning"></i>
                        </div>
                        <h5>Next Scheduled</h5>
                        <div class="fs-16px fw-600 text-warning">{{ next_backup_date|date:"M d, Y" }}</div>
                        <div class="text-muted small">{{ next_backup_time|date:"g:i A" }}</div>
                    </div>
                </div>
            </div>
        </div>
        
        <!-- Backup Configuration -->
        <div class="row mb-4">
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header">
                        <h4 class="card-title">Backup Configuration</h4>
                    </div>
                    <div class="card-body">
                        <form id="backupConfigForm">
                            {% csrf_token %}
                            
                            <div class="mb-3">
                                <label class="form-label">Automatic Backups</label>
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" name="auto_backup_enabled" 
                                           {% if backup_config.auto_backup_enabled %}checked{% endif %}>
                                    <label class="form-check-label">Enable automatic backups</label>
                                </div>
                            </div>
                            
                            <div class="mb-3">
                                <label class="form-label">Backup Frequency</label>
                                <select name="backup_frequency" class="form-select">
                                    <option value="daily" {% if backup_config.frequency == 'daily' %}selected{% endif %}>Daily</option>
                                    <option value="weekly" {% if backup_config.frequency == 'weekly' %}selected{% endif %}>Weekly</option>
                                    <option value="monthly" {% if backup_config.frequency == 'monthly' %}selected{% endif %}>Monthly</option>
                                </select>
                            </div>
                            
                            <div class="mb-3">
                                <label class="form-label">Backup Time</label>
                                <input type="time" name="backup_time" class="form-control" 
                                       value="{{ backup_config.backup_time|default:'02:00' }}">
                            </div>
                            
                            <div class="mb-3">
                                <label class="form-label">Retention Period</label>
                                <div class="input-group">
                                    <input type="number" name="retention_days" class="form-control" 
                                           value="{{ backup_config.retention_days|default:30 }}" min="7" max="365">
                                    <span class="input-group-text">days</span>
                                </div>
                            </div>
                            
                            <div class="mb-3">
                                <label class="form-label">Backup Types</label>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="include_database" 
                                           {% if backup_config.include_database %}checked{% endif %}>
                                    <label class="form-check-label">Database</label>
                                </div>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="include_media" 
                                           {% if backup_config.include_media %}checked{% endif %}>
                                    <label class="form-check-label">Media files</label>
                                </div>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="include_logs" 
                                           {% if backup_config.include_logs %}checked{% endif %}>
                                    <label class="form-check-label">System logs</label>
                                </div>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="include_config" 
                                           {% if backup_config.include_config %}checked{% endif %}>
                                    <label class="form-check-label">Configuration files</label>
                                </div>
                            </div>
                            
                            <button type="submit" class="btn btn-primary">
                                <i class="fa fa-save me-2"></i>Save Configuration
                            </button>
                        </form>
                    </div>
                </div>
            </div>
            
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header">
                        <h4 class="card-title">Quick Actions</h4>
                    </div>
                    <div class="card-body">
                        <div class="d-grid gap-3">
                            <button type="button" class="btn btn-outline-primary" onclick="createFullBackup()">
                                <i class="fa fa-database me-2"></i>Create Full Backup
                            </button>
                            
                            <button type="button" class="btn btn-outline-info" onclick="createDatabaseBackup()">
                                <i class="fa fa-table me-2"></i>Database Only Backup
                            </button>
                            
                            <button type="button" class="btn btn-outline-success" onclick="testBackupSystem()">
                                <i class="fa fa-check-circle me-2"></i>Test Backup System
                            </button>
                            
                            <button type="button" class="btn btn-outline-warning" onclick="cleanupOldBackups()">
                                <i class="fa fa-trash me-2"></i>Cleanup Old Backups
                            </button>
                            
                            <hr>
                            
                            <div class="mb-3">
                                <label class="form-label">Restore from File</label>
                                <input type="file" class="form-control" id="restoreFile" accept=".sql,.zip,.tar.gz">
                            </div>
                            
                            <button type="button" class="btn btn-outline-danger" onclick="restoreFromFile()">
                                <i class="fa fa-upload me-2"></i>Restore from File
                            </button>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        
        <!-- Backup History -->
        <div class="card">
            <div class="card-header">
                <h4 class="card-title">Backup History</h4>
                <div class="card-toolbar">
                    <button type="button" class="btn btn-outline-secondary btn-sm" onclick="refreshBackupList()">
                        <i class="fa fa-refresh"></i>
                    </button>
                </div>
            </div>
            <div class="card-body">
                <div class="table-responsive">
                    <table class="table table-striped" id="backupHistoryTable">
                        <thead>
                            <tr>
                                <th>Backup Name</th>
                                <th>Type</th>
                                <th>Size</th>
                                <th>Created</th>
                                <th>Status</th>
                                <th>Duration</th>
                                <th>Actions</th>
                            </tr>
                        </thead>
                        <tbody>
                            {% for backup in backups %}
                            <tr>
                                <td>
                                    <div class="fw-bold">{{ backup.name }}</div>
                                    <div class="text-muted small">{{ backup.description|default:"No description" }}</div>
                                </td>
                                <td>
                                    <span class="badge bg-{{ backup.type_color }}">
                                        <i class="fa fa-{{ backup.type_icon }} me-1"></i>{{ backup.get_type_display }}
                                    </span>
                                </td>
                                <td>
                                    <div class="fw-bold">{{ backup.file_size_human }}</div>
                                    {% if backup.compressed_size %}
                                    <div class="text-muted small">{{ backup.compressed_size_human }} compressed</div>
                                    {% endif %}
                                </td>
                                <td>
                                    <div>{{ backup.created_at|date:"M d, Y" }}</div>
                                    <div class="text-muted small">{{ backup.created_at|date:"g:i A" }}</div>
                                </td>
                                <td>
                                    {% if backup.status == 'completed' %}
                                        <span class="badge bg-success">
                                            <i class="fa fa-check me-1"></i>Completed
                                        </span>
                                    {% elif backup.status == 'in_progress' %}
                                        <span class="badge bg-warning">
                                            <i class="fa fa-spinner fa-spin me-1"></i>In Progress
                                        </span>
                                    {% elif backup.status == 'failed' %}
                                        <span class="badge bg-danger">
                                            <i class="fa fa-times me-1"></i>Failed
                                        </span>
                                    {% else %}
                                        <span class="badge bg-secondary">{{ backup.get_status_display }}</span>
                                    {% endif %}
                                </td>
                                <td>
                                    {% if backup.duration %}
                                        {{ backup.duration_human }}
                                    {% else %}
                                        <span class="text-muted">N/A</span>
                                    {% endif %}
                                </td>
                                <td>
                                    <div class="btn-group">
                                        {% if backup.status == 'completed' %}
                                        <button type="button" class="btn btn-outline-primary btn-sm" onclick="downloadBackup('{{ backup.id }}')">
                                            <i class="fa fa-download"></i>
                                        </button>
                                        <button type="button" class="btn btn-outline-success btn-sm" onclick="restoreBackup('{{ backup.id }}')">
                                            <i class="fa fa-undo"></i>
                                        </button>
                                        {% endif %}
                                        <button type="button" class="btn btn-outline-info btn-sm" onclick="viewBackupDetails('{{ backup.id }}')">
                                            <i class="fa fa-eye"></i>
                                        </button>
                                        <button type="button" class="btn btn-outline-danger btn-sm" onclick="deleteBackup('{{ backup.id }}')">
                                            <i class="fa fa-trash"></i>
                                        </button>
                                    </div>
                                </td>
                            </tr>
                            {% endfor %}
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Backup Progress Modal -->
<div class="modal fade" id="backupProgressModal" tabindex="-1" data-bs-backdrop="static">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Backup in Progress</h5>
            </div>
            <div class="modal-body">
                <div class="text-center mb-3">
                    <i class="fa fa-spinner fa-spin fa-3x text-primary"></i>
                </div>
                <div class="progress mb-3">
                    <div class="progress-bar" role="progressbar" style="width: 0%" id="backupProgress"></div>
                </div>
                <div class="text-center">
                    <div id="backupStatus">Initializing backup...</div>
                    <div class="text-muted small" id="backupDetails"></div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Restore Confirmation Modal -->
<div class="modal fade" id="restoreConfirmModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Confirm Restore</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <div class="alert alert-warning">
                    <i class="fa fa-exclamation-triangle me-2"></i>
                    <strong>Warning:</strong> This will overwrite current data with the backup data. This action cannot be undone.
                </div>
                <p>Are you sure you want to restore from this backup?</p>
                <div id="restoreBackupInfo"></div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-danger" id="confirmRestoreBtn">Restore</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block js %}
<script src="{% static 'assets/plugins/datatables.net/js/jquery.dataTables.min.js' %}"></script>
<script src="{% static 'assets/plugins/datatables.net-bs5/js/dataTables.bootstrap5.min.js' %}"></script>

<script>
$(document).ready(function() {
    // Initialize DataTable
    $('#backupHistoryTable').DataTable({
        responsive: true,
        pageLength: 10,
        order: [[3, 'desc']],
        columnDefs: [
            { orderable: false, targets: [6] }
        ]
    });
    
    // Backup configuration form
    $('#backupConfigForm').submit(function(e) {
        e.preventDefault();
        
        var formData = new FormData(this);
        
        $.post('{% url "core:save_backup_config" %}', formData, function(response) {
            if (response.success) {
                toastr.success('Backup configuration saved');
            } else {
                toastr.error('Failed to save configuration: ' + response.error);
            }
        }).fail(function() {
            toastr.error('Failed to save configuration');
        });
    });
});

function createBackup() {
    createFullBackup();
}

function createFullBackup() {
    if (confirm('Create a full system backup? This may take several minutes.')) {
        startBackupProcess('full');
    }
}

function createDatabaseBackup() {
    if (confirm('Create a database backup?')) {
        startBackupProcess('database');
    }
}

function startBackupProcess(type) {
    $('#backupProgressModal').modal('show');
    
    $.post('{% url "core:create_backup" %}', {
        'backup_type': type,
        'csrfmiddlewaretoken': '{{ csrf_token }}'
    }, function(response) {
        if (response.success) {
            monitorBackupProgress(response.backup_id);
        } else {
            $('#backupProgressModal').modal('hide');
            toastr.error('Failed to start backup: ' + response.error);
        }
    }).fail(function() {
        $('#backupProgressModal').modal('hide');
        toastr.error('Failed to start backup');
    });
}

function monitorBackupProgress(backupId) {
    var progressInterval = setInterval(function() {
        $.get('{% url "core:backup_progress" 0 %}'.replace('0', backupId), function(response) {
            $('#backupProgress').css('width', response.progress + '%');
            $('#backupStatus').text(response.status);
            $('#backupDetails').text(response.details);
            
            if (response.completed) {
                clearInterval(progressInterval);
                $('#backupProgressModal').modal('hide');
                
                if (response.success) {
                    toastr.success('Backup completed successfully');
                    refreshBackupList();
                } else {
                    toastr.error('Backup failed: ' + response.error);
                }
            }
        });
    }, 2000);
}

function downloadBackup(backupId) {
    window.location.href = '{% url "core:download_backup" 0 %}'.replace('0', backupId);
}

function restoreBackup(backupId) {
    $.get('{% url "core:backup_detail" 0 %}'.replace('0', backupId), function(backup) {
        $('#restoreBackupInfo').html(`
            <strong>Backup:</strong> ${backup.name}<br>
            <strong>Created:</strong> ${backup.created_at}<br>
            <strong>Size:</strong> ${backup.file_size_human}<br>
            <strong>Type:</strong> ${backup.type}
        `);
        
        $('#confirmRestoreBtn').off('click').on('click', function() {
            performRestore(backupId);
        });
        
        $('#restoreConfirmModal').modal('show');
    });
}

function performRestore(backupId) {
    $('#restoreConfirmModal').modal('hide');
    
    $.post('{% url "core:restore_backup" %}', {
        'backup_id': backupId,
        'csrfmiddlewaretoken': '{{ csrf_token }}'
    }, function(response) {
        if (response.success) {
            toastr.success('Restore completed successfully');
            setTimeout(function() {
                location.reload();
            }, 2000);
        } else {
            toastr.error('Restore failed: ' + response.error);
        }
    }).fail(function() {
        toastr.error('Failed to restore backup');
    });
}

function restoreFromFile() {
    var fileInput = document.getElementById('restoreFile');
    if (!fileInput.files.length) {
        toastr.warning('Please select a backup file first');
        return;
    }
    
    if (confirm('Restore from uploaded file? This will overwrite current data.')) {
        var formData = new FormData();
        formData.append('backup_file', fileInput.files[0]);
        formData.append('csrfmiddlewaretoken', '{{ csrf_token }}');
        
        $.ajax({
            url: '{% url "core:restore_from_file" %}',
            type: 'POST',
            data: formData,
            processData: false,
            contentType: false,
            success: function(response) {
                if (response.success) {
                    toastr.success('Restore completed successfully');
                    setTimeout(function() {
                        location.reload();
                    }, 2000);
                } else {
                    toastr.error('Restore failed: ' + response.error);
                }
            },
            error: function() {
                toastr.error('Failed to restore from file');
            }
        });
    }
}

function viewBackupDetails(backupId) {
    window.open('{% url "core:backup_detail" 0 %}'.replace('0', backupId), '_blank');
}

function deleteBackup(backupId) {
    if (confirm('Delete this backup? This action cannot be undone.')) {
        $.post('{% url "core:delete_backup" %}', {
            'backup_id': backupId,
            'csrfmiddlewaretoken': '{{ csrf_token }}'
        }, function(response) {
            if (response.success) {
                toastr.success('Backup deleted successfully');
                refreshBackupList();
            } else {
                toastr.error('Failed to delete backup: ' + response.error);
            }
        }).fail(function() {
            toastr.error('Failed to delete backup');
        });
    }
}

function testBackupSystem() {
    $.post('{% url "core:test_backup_system" %}', {
        'csrfmiddlewaretoken': '{{ csrf_token }}'
    }, function(response) {
        if (response.success) {
            toastr.success('Backup system test passed');
        } else {
            toastr.error('Backup system test failed: ' + response.error);
        }
    }).fail(function() {
        toastr.error('Failed to test backup system');
    });
}

function cleanupOldBackups() {
    if (confirm('Delete backups older than the retention period?')) {
        $.post('{% url "core:cleanup_old_backups" %}', {
            'csrfmiddlewaretoken': '{{ csrf_token }}'
        }, function(response) {
            if (response.success) {
                toastr.success(`Cleaned up ${response.deleted_count} old backups`);
                refreshBackupList();
            } else {
                toastr.error('Failed to cleanup backups: ' + response.error);
            }
        }).fail(function() {
            toastr.error('Failed to cleanup backups');
        });
    }
}

function refreshBackupList() {
    location.reload();
}
</script>
{% endblock %}