export interface UserInvite {
  id: string;
  email: string;
  status: 'pending' | 'accepted' | 'expired' | 'cancelled';
  
  // Permissions to be applied
  assignments: {
    immediate?: {
      role?: string;
      department?: string;
      permissions?: string[];
    };
    conditional?: {
      ifEmailDomain?: string;
      thenAssign?: {
        role?: string;
        permissions?: string[];
      };
    };
    deferred?: {
      role?: string;
      permissions?: string[];
      requiresApproval?: boolean;
      approvedBy?: string;
      approvedAt?: Date;
    };
  };
  
  // Metadata
  invitedBy: string;
  invitedAt: Date;
  expiresAt: Date;
  acceptedAt?: Date;
  
  // Custom data
  metadata?: Record<string, any>;
}

export interface InviteUserOptions {
  email: string;
  role?: string;
  department?: string;
  permissions?: string[];
  sendEmail?: boolean;
  expiresIn?: string;
  immediate?: InviteAssignment;
  conditional?: ConditionalAssignment;
  deferred?: DeferredAssignment;
  metadata?: Record<string, any>;
}

export interface InviteAssignment {
  role?: string;
  department?: string;
  permissions?: string[];
}

export interface ConditionalAssignment {
  ifEmailDomain?: string;
  thenAssign?: InviteAssignment;
}

export interface DeferredAssignment extends InviteAssignment {
  requiresApproval?: boolean;
}

export interface InviteTemplate {
  id: string;
  name: string;
  description?: string;
  assignments: InviteUserOptions;
  createdBy: string;
  createdAt: Date;
}

export interface BulkInviteResult {
  successful: string[];
  failed: Array<{
    email: string;
    error: string;
  }>;
}

export interface InvitePreview {
  fromRole: string[];
  fromDepartment: string[];
  explicit: string[];
  total: string[];
}