/**
 * Health Alert Display Object
 *
 * Provides formatting and display logic for health alerts.
 * This display object isolates UI-specific formatting from business logic.
 */

export class HealthAlertDisplay {
  static formatSeverity(type: 'critical' | 'warning' | 'info'): string {
    const severities: Record<string, string> = {
      critical: 'Critical',
      warning: 'Warning',
      info: 'Info',
    };
    return severities[type] || 'Info';
  }

  static formatSeverityColor(type: 'critical' | 'warning' | 'info'): string {
    const colors: Record<string, string> = {
      critical: '#ef4444', // red-500
      warning: '#f59e0b', // amber-500
      info: '#3b82f6', // blue-500
    };
    return colors[type] || '#3b82f6';
  }

  static formatTimestamp(timestamp: string): string {
    const date = new Date(timestamp);
    return date.toLocaleString('en-US', {
      year: 'numeric',
      month: 'short',
      day: 'numeric',
      hour: '2-digit',
      minute: '2-digit',
      second: '2-digit',
    });
  }

  static formatRelativeTime(timestamp: string): string {
    const now = new Date();
    const date = new Date(timestamp);
    const diffMs = now.getTime() - date.getTime();
    const diffMins = Math.floor(diffMs / 60000);
    const diffHours = Math.floor(diffMs / 3600000);
    const diffDays = Math.floor(diffMs / 86400000);

    if (diffMins < 1) return 'Just now';
    if (diffMins < 60) return `${diffMins}m ago`;
    if (diffHours < 24) return `${diffHours}h ago`;
    if (diffDays < 7) return `${diffDays}d ago`;
    return `${Math.floor(diffDays / 7)}w ago`;
  }
}