// API Key management functionality

// Load API keys
async function loadApiKeys() {
    if (!config.isConfigured()) {
        showAlert('Please configure your API settings first.', 'warning');
        return;
    }

    const container = document.getElementById('apiKeysContainer');
    container.innerHTML = '<div class="text-center"><div class="loading-spinner"></div> Loading API keys...</div>';

    try {
        const response = await apiClient.getApiKeys();
        // Handle structured response - extract api_keys array from response object
        const apiKeys = response.api_keys || response;
        displayApiKeys(apiKeys);
    } catch (error) {
        handleApiError(error, 'loading API keys');
        container.innerHTML = '<div class="alert alert-danger">Failed to load API keys</div>';
    }
}

// Display API keys
function displayApiKeys(apiKeys) {
    const container = document.getElementById('apiKeysContainer');
    
    if (!apiKeys || apiKeys.length === 0) {
        container.innerHTML = `
            <div class="text-center py-5">
                <i class="fas fa-key fa-3x text-muted mb-3"></i>
                <h4>No API keys found</h4>
                <p class="text-muted">Create your first API key to get started!</p>
                <button class="btn btn-primary" onclick="showCreateApiKeyModal()">
                    <i class="fas fa-plus me-1"></i>Create API Key
                </button>
            </div>
        `;
        return;
    }

    const apiKeysHtml = `
        <div class="table-responsive">
            <table class="table table-hover">
                <thead>
                    <tr>
                        <th>Name</th>
                        <th>Key</th>
                        <th>Status</th>
                        <th>Created</th>
                        <th>Last Used</th>
                        <th>Actions</th>
                    </tr>
                </thead>
                <tbody>
                    ${apiKeys.map(key => `
                        <tr>
                            <td>
                                <div class="d-flex align-items-center">
                                    <i class="fas fa-key me-2 text-primary"></i>
                                    ${escapeHtml(key.name)}
                                </div>
                            </td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <code class="me-2" id="key-${key.id}">
                                        ${key.key ? key.key.substring(0, 8) + '...' : 'Hidden'}
                                    </code>
                                    <button class="btn btn-sm btn-outline-secondary" 
                                            onclick="copyApiKey('${key.key || ''}')"
                                            title="Copy to clipboard">
                                        <i class="fas fa-copy"></i>
                                    </button>
                                </div>
                            </td>
                            <td>
                                <span class="badge ${key.is_active ? 'bg-success' : 'bg-danger'}">
                                    ${key.is_active ? 'Active' : 'Inactive'}
                                </span>
                            </td>
                            <td class="text-muted small">${formatDate(key.created_at)}</td>
                            <td class="text-muted small">
                                ${key.last_used_at ? formatDate(key.last_used_at) : 'Never'}
                            </td>
                            <td>
                                <div class="btn-group" role="group">
                                    <button class="btn btn-sm btn-outline-primary" onclick="viewApiKey('${key.id}')">
                                        <i class="fas fa-eye"></i>
                                    </button>
                                    <button class="btn btn-sm btn-outline-danger" onclick="deleteApiKey('${key.id}')">
                                        <i class="fas fa-trash"></i>
                                    </button>
                                </div>
                            </td>
                        </tr>
                    `).join('')}
                </tbody>
            </table>
        </div>
    `;

    container.innerHTML = apiKeysHtml;
}

// Show create API key modal
function showCreateApiKeyModal() {
    const modalBody = `
        <form id="createApiKeyForm">
            <div class="mb-3">
                <label for="apiKeyName" class="form-label">API Key Name *</label>
                <input type="text" class="form-control" id="apiKeyName" required
                       placeholder="e.g., Mobile App, Integration Service">
                <div class="form-text">Choose a descriptive name to identify this API key</div>
            </div>
            <div class="mb-3">
                <label for="apiKeyDescription" class="form-label">Description</label>
                <textarea class="form-control" id="apiKeyDescription" rows="3" 
                          placeholder="Describe what this API key will be used for..."></textarea>
            </div>
            <div class="alert alert-info">
                <i class="fas fa-info-circle me-2"></i>
                <strong>Important:</strong> The API key will only be shown once after creation. 
                Make sure to copy and store it securely.
            </div>
        </form>
    `;

    const modalFooter = `
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
        <button type="button" class="btn btn-primary" onclick="createApiKey()">
            <i class="fas fa-plus me-1"></i>Create API Key
        </button>
    `;

    const modal = createModal('createApiKeyModal', 'Create New API Key', modalBody, modalFooter);
    
    // Handle form submission
    document.getElementById('createApiKeyForm').addEventListener('submit', (e) => {
        e.preventDefault();
        createApiKey();
    });
    
    modal.show();
    
    // Focus on name field
    setTimeout(() => document.getElementById('apiKeyName').focus(), 100);
}

// Create API key
async function createApiKey() {
    const name = document.getElementById('apiKeyName').value.trim();
    const description = document.getElementById('apiKeyDescription').value.trim();
    
    if (!name) {
        showAlert('API key name is required', 'danger');
        return;
    }
    
    const createButton = document.querySelector('#createApiKeyModal .btn-primary');
    setLoadingState(createButton);
    
    try {
        const result = await apiClient.createApiKey({
            name,
            description
        });
        
        // Close the create modal
        bootstrap.Modal.getInstance(document.getElementById('createApiKeyModal')).hide();
        removeModal('createApiKeyModal');
        
        // Show the new API key
        showNewApiKeyModal(result);
        
        // Refresh the list
        loadApiKeys();
        
    } catch (error) {
        handleApiError(error, 'creating API key');
    } finally {
        setLoadingState(createButton, false);
    }
}

// Show new API key modal
function showNewApiKeyModal(apiKeyData) {
    const modalBody = `
        <div class="alert alert-success">
            <i class="fas fa-check-circle me-2"></i>
            <strong>API Key Created Successfully!</strong>
        </div>
        
        <div class="mb-4">
            <label class="form-label"><strong>API Key Name:</strong></label>
            <p>${escapeHtml(apiKeyData.name)}</p>
        </div>
        
        <div class="mb-4">
            <label class="form-label"><strong>API Key:</strong></label>
            <div class="input-group">
                <input type="text" class="form-control" id="newApiKeyValue" 
                       value="${apiKeyData.key}" readonly>
                <button class="btn btn-outline-secondary" onclick="copyApiKey('${apiKeyData.key}')">
                    <i class="fas fa-copy"></i> Copy
                </button>
            </div>
        </div>
        
        <div class="alert alert-warning">
            <i class="fas fa-exclamation-triangle me-2"></i>
            <strong>Important:</strong> This is the only time you'll see this API key. 
            Make sure to copy and store it securely before closing this dialog.
        </div>
    `;

    const modalFooter = `
        <button type="button" class="btn btn-primary" data-bs-dismiss="modal" onclick="copyApiKey('${apiKeyData.key}')">
            <i class="fas fa-copy me-1"></i>Copy & Close
        </button>
    `;

    const modal = createModal('newApiKeyModal', 'New API Key Created', modalBody, modalFooter);
    modal.show();
    
    // Auto-select the API key text
    setTimeout(() => {
        const input = document.getElementById('newApiKeyValue');
        input.select();
        input.focus();
    }, 100);
}

// Copy API key to clipboard
async function copyApiKey(key) {
    if (!key) {
        showAlert('No API key to copy', 'warning');
        return;
    }
    
    try {
        await copyToClipboard(key);
    } catch (error) {
        // Fallback for older browsers
        const textArea = document.createElement('textarea');
        textArea.value = key;
        document.body.appendChild(textArea);
        textArea.select();
        document.execCommand('copy');
        document.body.removeChild(textArea);
        showAlert('API key copied to clipboard!', 'success');
    }
}

// View API key details
async function viewApiKey(keyId) {
    try {
        const response = await apiClient.getApiKeys();
        // Handle structured response - extract api_keys array from response object
        const apiKeys = response.api_keys || response;
        const apiKey = apiKeys.find(k => k.id === keyId);
        
        if (!apiKey) {
            showAlert('API key not found', 'danger');
            return;
        }
        
        const modalBody = `
            <div class="row">
                <div class="col-12">
                    <h5><i class="fas fa-key me-2"></i>${escapeHtml(apiKey.name)}</h5>
                    <p class="text-muted">${escapeHtml(apiKey.description || 'No description')}</p>
                    <hr>
                    <div class="row">
                        <div class="col-md-6">
                            <h6>Key Information</h6>
                            <p><strong>Created:</strong> ${formatDate(apiKey.created_at)}</p>
                            <p><strong>Last Used:</strong> ${apiKey.last_used_at ? formatDate(apiKey.last_used_at) : 'Never'}</p>
                            <p><strong>ID:</strong> <code>${apiKey.id}</code></p>
                        </div>
                        <div class="col-md-6">
                            <h6>Status & Security</h6>
                            <p><strong>Status:</strong> 
                                <span class="badge ${apiKey.is_active ? 'bg-success' : 'bg-danger'}">
                                    ${apiKey.is_active ? 'Active' : 'Inactive'}
                                </span>
                            </p>
                            <p><strong>Key Preview:</strong> <code>${apiKey.key ? apiKey.key.substring(0, 8) + '...' : 'Hidden'}</code></p>
                        </div>
                    </div>
                    
                    ${apiKey.last_used_at ? `
                        <div class="mt-3">
                            <h6>Usage Statistics</h6>
                            <div class="alert alert-info">
                                <i class="fas fa-chart-line me-2"></i>
                                This API key was last used on ${formatDate(apiKey.last_used_at)}
                            </div>
                        </div>
                    ` : `
                        <div class="mt-3">
                            <div class="alert alert-warning">
                                <i class="fas fa-exclamation-triangle me-2"></i>
                                This API key has never been used
                            </div>
                        </div>
                    `}
                </div>
            </div>
        `;
        
        const modalFooter = `
            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
            <button type="button" class="btn btn-danger" onclick="deleteApiKey('${keyId}')">
                <i class="fas fa-trash me-1"></i>Delete Key
            </button>
        `;
        
        const modal = createModal('viewApiKeyModal', 'API Key Details', modalBody, modalFooter);
        modal.show();
        
    } catch (error) {
        handleApiError(error, 'loading API key details');
    }
}

// Delete API key
function deleteApiKey(keyId) {
    confirmAction('Are you sure you want to delete this API key? This action cannot be undone and will immediately revoke access for any applications using this key.', async () => {
        try {
            await apiClient.deleteApiKey(keyId);
            showAlert('API key deleted successfully!', 'success');
            loadApiKeys();
            
            // Close any open modals
            const modals = ['viewApiKeyModal', 'newApiKeyModal'];
            modals.forEach(modalId => {
                const modalElement = document.getElementById(modalId);
                if (modalElement) {
                    bootstrap.Modal.getInstance(modalElement)?.hide();
                    removeModal(modalId);
                }
            });
            
        } catch (error) {
            handleApiError(error, 'deleting API key');
        }
    });
}

// Generate API key usage report
function generateUsageReport() {
    showAlert('Usage report functionality would be implemented here', 'info');
}

// Bulk operations for API keys
function bulkDeleteApiKeys() {
    showAlert('Bulk operations functionality would be implemented here', 'info');
}