export type ProposalStatus = 'Draft' | 'InReview' | 'Approved' | 'Sent' | 'Revised';
// Fix: WEB-M4 — align with API enum (ProposalSystem.Domain.Entities.ServiceCategory includes 'Other')
export type ServiceCategory = 'HVAC' | 'Plumbing' | 'Electrical' | 'General' | 'Renovation' | 'Other';
export type Priority = 'Standard' | 'Urgent' | 'Emergency';
export type LineItemSource = 'AI' | 'Vendor' | 'Manual' | 'Historical';
export type PricingMode = 'UnitPrice' | 'TotalPrice' | 'Both';
export type UserRole = 'Dispatcher' | 'Admin' | 'SysAdmin';

export interface Proposal {
  id: string;
  proposalNumber: string;
  workOrderNumber: string;
  customerName: string;
  customerAddress: string;
  scopeOfWork: string;
  refinedScope: string | null;
  serviceCategory: ServiceCategory;
  priority: Priority;
  status: ProposalStatus;
  totalBidAmount: number;
  vendorTotalCost: number | null;
  notes: string;
  submittedById: string;
  submittedAt: string;
  assignedAdminId: string | null;
  approvedById: string | null;
  approvedAt: string | null;
  sentAt: string | null;
  currentRevision: number;
  parentProposalId: string | null;
  createdAt: string;
  updatedAt: string;
}

export interface LineItem {
  id: string;
  proposalId: string;
  description: string;
  quantity: number;
  unit: string;
  unitPrice: number | null;
  totalPrice: number;
  pricingMode: PricingMode;
  sortOrder: number;
  source: LineItemSource;
  createdAt: string;
  updatedAt: string;
}

export interface CreateProposalRequest {
  workOrderNumber: string;
  customerName: string;
  customerAddress: string;
  scopeOfWork: string;
  serviceCategory: ServiceCategory;
  priority: Priority;
  notes?: string;
}

export interface UpdateLineItemsRequest {
  lineItems: Omit<LineItem, 'id' | 'proposalId' | 'createdAt' | 'updatedAt'>[];
}

export interface Customer {
  id: string;
  name: string;
  addresses: string[];
  contactEmail: string | null;
  createdAt: string;
}

export interface CreateCustomerRequest {
  name: string;
  addresses?: string[];
  contactEmail?: string;
}

export interface UpdateCustomerRequest {
  name?: string;
  addresses?: string[];
  contactEmail?: string | null;
}

export interface PagedResponse<T> {
  items: T[];
  totalCount: number;
  page: number;
  pageSize: number;
}

// PR5: Pricing Library types
export interface PricingLibraryItem {
  id: string;
  title: string;
  description: string | null;
  serviceCategory: ServiceCategory;
  unit: string | null;
  unitPrice: number | null;
  keywords: string | null;
  source: string;
  createdAt: string;
  updatedAt: string;
}

export interface CreatePricingLibraryItemRequest {
  title: string;
  description?: string;
  serviceCategory: ServiceCategory;
  unit?: string;
  unitPrice?: number;
  keywords?: string;
  source?: string;
}

export interface UpdatePricingLibraryItemRequest {
  title?: string;
  description?: string;
  serviceCategory?: ServiceCategory;
  unit?: string;
  unitPrice?: number;
  keywords?: string;
}