/**
 * Policy Table Helper Functions
 * 
 * Utilities for formatting, sorting, and generating links for policy data.
 */

import type { PolicySettingRow } from '@/lib/types/policy-table';

/**
 * Generate Intune Portal URL for a policy based on its type and ID
 * @param policyType The type of policy (e.g., 'deviceConfiguration')
 * @param graphPolicyId The Microsoft Graph policy ID
 * @returns Intune Portal URL or null if URL construction fails
 */
export function getIntunePortalLink(
  policyType: string,
  graphPolicyId: string
): string | null {
  if (!graphPolicyId) {
    return null;
  }

  const baseUrl = 'https://intune.microsoft.com';

  // Map policy types to Intune portal paths
  const policyTypeUrls: Record<string, string> = {
    // Device Configuration
    deviceConfiguration: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/DeviceConfigProfilesMenu/~/properties/policyId/${graphPolicyId}`,
    
    // Compliance Policies
    compliancePolicy: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/DeviceCompliancePoliciesMenu/~/properties/policyId/${graphPolicyId}`,
    
    // Device Management Scripts
    deviceManagementScript: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/DeviceManagementScriptsMenu/~/properties/scriptId/${graphPolicyId}`,
    
    // Windows Update for Business
    windowsUpdateForBusiness: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/UpdateRingsMenu/~/properties/policyId/${graphPolicyId}`,
    
    // iOS Update Configuration
    iosUpdateConfiguration: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/iOSUpdateConfigurationsMenu/~/properties/policyId/${graphPolicyId}`,
    
    // Settings Catalog
    settingsCatalog: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/ConfigurationPolicyMenu/~/properties/policyId/${graphPolicyId}`,
    
    // Endpoint Protection
    endpointProtection: `${baseUrl}/#view/Microsoft_Intune_Workflows/SecurityBaselinesSummaryMenu/~/properties/templateId/${graphPolicyId}`,
    
    // macOS Extensions
    macOSExtensionsConfiguration: `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/DeviceConfigProfilesMenu/~/properties/policyId/${graphPolicyId}`,
  };

  // Check if we have a known URL pattern
  if (policyType in policyTypeUrls) {
    return policyTypeUrls[policyType];
  }

  // Fallback: Generic device settings URL
  return `${baseUrl}/#view/Microsoft_Intune_DeviceSettings/DeviceSettingsMenu`;
}

/**
 * Format policy type for display (convert camelCase to Title Case)
 * @param policyType Policy type in camelCase (e.g., 'deviceConfiguration')
 * @returns Formatted title (e.g., 'Device Configuration')
 */
export function formatPolicyType(policyType: string): string {
  // Insert spaces before capital letters
  const withSpaces = policyType.replace(/([A-Z])/g, ' $1');
  
  // Capitalize first letter and trim
  return withSpaces.charAt(0).toUpperCase() + withSpaces.slice(1).trim();
}

/**
 * Truncate long text with ellipsis
 * @param text Text to truncate
 * @param maxLength Maximum length before truncation
 * @returns Truncated text with ellipsis if needed
 */
export function truncateText(text: string, maxLength: number = 100): string {
  if (text.length <= maxLength) {
    return text;
  }
  return text.substring(0, maxLength) + '...';
}

/**
 * Format date for display (relative or absolute)
 * @param date Date to format
 * @param relative Whether to show relative time (e.g., "2 hours ago")
 * @returns Formatted date string
 */
export function formatDate(date: Date | string, relative: boolean = false): string {
  const dateObj = typeof date === 'string' ? new Date(date) : date;
  
  if (relative) {
    const now = new Date();
    const diffMs = now.getTime() - dateObj.getTime();
    const diffMins = Math.floor(diffMs / 60000);
    
    if (diffMins < 1) return 'just now';
    if (diffMins < 60) return `${diffMins} min${diffMins > 1 ? 's' : ''} ago`;
    
    const diffHours = Math.floor(diffMins / 60);
    if (diffHours < 24) return `${diffHours} hour${diffHours > 1 ? 's' : ''} ago`;
    
    const diffDays = Math.floor(diffHours / 24);
    if (diffDays < 7) return `${diffDays} day${diffDays > 1 ? 's' : ''} ago`;
    
    const diffWeeks = Math.floor(diffDays / 7);
    return `${diffWeeks} week${diffWeeks > 1 ? 's' : ''} ago`;
  }
  
  return dateObj.toLocaleString();
}