uup

app/types/auth.ts

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+import type { User } from "@prisma/client";
+
+// Authentication levels
+export const AUTH_LEVELS = {
+  SUPERADMIN: 1,
+  ADMIN: 2,
+  USER: 3,
+} as const;
+
+export type AuthLevel = typeof AUTH_LEVELS[keyof typeof AUTH_LEVELS];
+
+// User status types
+export const USER_STATUS = {
+  ACTIVE: "active",
+  INACTIVE: "inactive",
+} as const;
+
+export type UserStatus = typeof USER_STATUS[keyof typeof USER_STATUS];
+
+// Authentication form data types
+export interface SignInFormData {
+  usernameOrEmail: string;
+  password: string;
+  redirectTo?: string;
+}
+
+export interface SignUpFormData {
+  name: string;
+  username: string;
+  email: string;
+  password: string;
+  confirmPassword: string;
+}
+
+// User data without sensitive information
+export type SafeUser = Omit<User, "password">;
+
+// Authentication error types
+export interface AuthError {
+  field?: string;
+  message: string;
+}
+
+// Authentication result types
+export interface AuthResult {
+  success: boolean;
+  user?: SafeUser;
+  errors?: AuthError[];
+}
+
+// Session data type
+export interface SessionData {
+  userId: number;
+}
+
+// Route protection types
+export interface RouteProtectionOptions {
+  requiredAuthLevel?: AuthLevel;
+  allowInactive?: boolean;
+  redirectTo?: string;
+}

app/types/database.ts

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+import type { User, Customer, Vehicle, MaintenanceVisit, MaintenanceType, Expense, Income, CarDataset, Settings } from '@prisma/client';
+
+// Re-export Prisma types for easier imports
+export type {
+  User,
+  Customer,
+  Vehicle,
+  MaintenanceVisit,
+  MaintenanceType,
+  Expense,
+  Income,
+  CarDataset,
+  Settings,
+} from '@prisma/client';
+
+// Extended types with relationships
+export type UserWithoutPassword = Omit<User, 'password'>;
+
+export type CustomerWithVehicles = Customer & {
+  vehicles: Vehicle[];
+  maintenanceVisits: (MaintenanceVisit & {
+    vehicle: {
+      id: number;
+      plateNumber: string;
+      manufacturer: string;
+      model: string;
+      year: number;
+    };
+  })[];
+};
+
+export type VehicleWithOwner = Vehicle & {
+  owner: Customer;
+};
+
+export type VehicleWithRelations = Vehicle & {
+  owner: Customer;
+  maintenanceVisits: MaintenanceVisit[];
+};
+
+// Maintenance job interface for JSON field
+export interface MaintenanceJob {
+  typeId: number;
+  job: string;
+  cost: number;
+  notes?: string;
+}
+
+export type MaintenanceVisitWithRelations = MaintenanceVisit & {
+  vehicle: Vehicle;
+  customer: Customer;
+  income: Income[];
+  // maintenanceJobs will be parsed from JSON string
+};
+
+export type IncomeWithVisit = Income & {
+  maintenanceVisit: MaintenanceVisit;
+};
+
+// Enums for form validation and type safety
+export const UserStatus = {
+  ACTIVE: 'active',
+  INACTIVE: 'inactive',
+} as const;
+
+export const AuthLevel = {
+  SUPERADMIN: 1,
+  ADMIN: 2,
+  USER: 3,
+} as const;
+
+export const TransmissionType = {
+  AUTOMATIC: 'Automatic',
+  MANUAL: 'Manual',
+} as const;
+
+export const FuelType = {
+  GASOLINE: 'Gasoline',
+  DIESEL: 'Diesel',
+  HYBRID: 'Hybrid',
+  MILD_HYBRID: 'Mild Hybrid',
+  ELECTRIC: 'Electric',
+} as const;
+
+export const UseType = {
+  PERSONAL: 'personal',
+  TAXI: 'taxi',
+  APPS: 'apps',
+  LOADING: 'loading',
+  TRAVEL: 'travel',
+} as const;
+
+export const PaymentStatus = {
+  PENDING: 'pending',
+  PAID: 'paid',
+  PARTIAL: 'partial',
+  CANCELLED: 'cancelled',
+} as const;
+
+// Form data types for validation
+export interface CreateUserData {
+  name: string;
+  username: string;
+  email: string;
+  password: string;
+  authLevel: number;
+  status?: string;
+}
+
+export interface UpdateUserData {
+  name?: string;
+  username?: string;
+  email?: string;
+  password?: string;
+  authLevel?: number;
+  status?: string;
+}
+
+export interface CreateCustomerData {
+  name: string;
+  phone?: string;
+  email?: string;
+  address?: string;
+}
+
+export interface UpdateCustomerData {
+  name?: string;
+  phone?: string;
+  email?: string;
+  address?: string;
+}
+
+export interface CreateVehicleData {
+  plateNumber: string;
+  bodyType: string;
+  manufacturer: string;
+  model: string;
+  trim?: string;
+  year: number;
+  transmission: string;
+  fuel: string;
+  cylinders?: number;
+  engineDisplacement?: number;
+  useType: string;
+  ownerId: number;
+}
+
+export interface UpdateVehicleData {
+  plateNumber?: string;
+  bodyType?: string;
+  manufacturer?: string;
+  model?: string;
+  trim?: string;
+  year?: number;
+  transmission?: string;
+  fuel?: string;
+  cylinders?: number;
+  engineDisplacement?: number;
+  useType?: string;
+  ownerId?: number;
+  lastVisitDate?: Date;
+  suggestedNextVisitDate?: Date;
+}
+
+export interface CreateMaintenanceTypeData {
+  name: string;
+  description?: string;
+  isActive?: boolean;
+}
+
+export interface UpdateMaintenanceTypeData {
+  name?: string;
+  description?: string;
+  isActive?: boolean;
+}
+
+export interface CreateMaintenanceVisitData {
+  vehicleId: number;
+  customerId: number;
+  maintenanceJobs: MaintenanceJob[];
+  description: string;
+  cost: number;
+  paymentStatus?: string;
+  kilometers: number;
+  visitDate?: Date;
+  nextVisitDelay: number;
+}
+
+export interface UpdateMaintenanceVisitData {
+  vehicleId?: number;
+  customerId?: number;
+  maintenanceJobs?: MaintenanceJob[];
+  description?: string;
+  cost?: number;
+  paymentStatus?: string;
+  kilometers?: number;
+  visitDate?: Date;
+  nextVisitDelay?: number;
+}
+
+export interface CreateExpenseData {
+  description: string;
+  category: string;
+  amount: number;
+  expenseDate?: Date;
+}
+
+export interface UpdateExpenseData {
+  description?: string;
+  category?: string;
+  amount?: number;
+  expenseDate?: Date;
+}
+
+export interface CreateIncomeData {
+  maintenanceVisitId: number;
+  amount: number;
+  incomeDate?: Date;
+}
+
+export interface CreateCarDatasetData {
+  manufacturer: string;
+  model: string;
+  bodyType: string;
+  isActive?: boolean;
+}
+
+export interface UpdateCarDatasetData {
+  manufacturer?: string;
+  model?: string;
+  bodyType?: string;
+  isActive?: boolean;
+}
+
+// Utility types for API responses
+export interface ApiResponse<T = any> {
+  success: boolean;
+  data?: T;
+  error?: {
+    code: string;
+    message: string;
+    details?: any;
+  };
+}
+
+export interface PaginatedResponse<T = any> {
+  data: T[];
+  pagination: {
+    page: number;
+    limit: number;
+    total: number;
+    totalPages: number;
+  };
+}
+
+// Search and filter types
+export interface SearchParams {
+  query?: string;
+  page?: number;
+  limit?: number;
+  sortBy?: string;
+  sortOrder?: 'asc' | 'desc';
+}
+
+export interface CustomerSearchParams extends SearchParams {
+  status?: string;
+}
+
+export interface VehicleSearchParams extends SearchParams {
+  manufacturer?: string;
+  year?: number;
+  useType?: string;
+  ownerId?: number;
+}
+
+export interface MaintenanceVisitSearchParams extends SearchParams {
+  vehicleId?: number;
+  customerId?: number;
+  dateFrom?: Date;
+  dateTo?: Date;
+  paymentStatus?: string;
+}
+
+export interface FinancialSearchParams extends SearchParams {
+  category?: string;
+  dateFrom?: Date;
+  dateTo?: Date;
+  amountMin?: number;
+  amountMax?: number;
+}