import api from './axios-instance';
import { API_ENDPOINTS } from '@shared/constants/api-endpoints';
import type { BaseEntity } from '@shared/types/entities.types';
import type { ApiResponse, PaginatedResponse, PaginationParams } from '@shared/types/api.types';

// ============================================================================
// Interfaces
// ============================================================================

export interface SalesOrderLine {
  id?: string;
  productId: string;
  productName?: string;
  quantity: number;
  unitPrice: number;
  discount?: number;
  taxIds?: string[];
  subtotal?: number;
}

export interface SalesOrder extends BaseEntity {
  name: string;
  partnerId: string;
  partnerName?: string;
  dateOrder: string;
  dateDelivery?: string;
  status: 'draft' | 'confirmed' | 'done' | 'cancelled';
  pricelistId?: string;
  paymentTermId?: string;
  warehouseId?: string;
  lines: SalesOrderLine[];
  amountUntaxed: number;
  amountTax: number;
  amountTotal: number;
  notes?: string;
  tenantId: string;
}

export interface Quotation extends BaseEntity {
  name: string;
  partnerId: string;
  partnerName?: string;
  dateQuotation: string;
  dateExpiry?: string;
  status: 'draft' | 'sent' | 'confirmed' | 'cancelled' | 'expired';
  pricelistId?: string;
  paymentTermId?: string;
  lines: SalesOrderLine[];
  amountUntaxed: number;
  amountTax: number;
  amountTotal: number;
  notes?: string;
  tenantId: string;
}

// ============================================================================
// DTOs
// ============================================================================

export interface CreateSalesOrderDto {
  partnerId: string;
  dateOrder?: string;
  dateDelivery?: string;
  pricelistId?: string;
  paymentTermId?: string;
  warehouseId?: string;
  lines: Omit<SalesOrderLine, 'id' | 'productName' | 'subtotal'>[];
  notes?: string;
}

export interface UpdateSalesOrderDto {
  partnerId?: string;
  dateOrder?: string;
  dateDelivery?: string;
  pricelistId?: string;
  paymentTermId?: string;
  warehouseId?: string;
  lines?: Omit<SalesOrderLine, 'productName' | 'subtotal'>[];
  notes?: string;
}

export interface CreateQuotationDto {
  partnerId: string;
  dateQuotation?: string;
  dateExpiry?: string;
  pricelistId?: string;
  paymentTermId?: string;
  lines: Omit<SalesOrderLine, 'id' | 'productName' | 'subtotal'>[];
  notes?: string;
}

export interface UpdateQuotationDto {
  partnerId?: string;
  dateQuotation?: string;
  dateExpiry?: string;
  pricelistId?: string;
  paymentTermId?: string;
  lines?: Omit<SalesOrderLine, 'productName' | 'subtotal'>[];
  notes?: string;
}

// ============================================================================
// Filters
// ============================================================================

export interface SalesOrderFilters extends PaginationParams {
  partnerId?: string;
  status?: SalesOrder['status'];
  dateFrom?: string;
  dateTo?: string;
}

export interface QuotationFilters extends PaginationParams {
  partnerId?: string;
  status?: Quotation['status'];
  dateFrom?: string;
  dateTo?: string;
}

// ============================================================================
// API Client
// ============================================================================

export const salesApi = {
  // Orders
  getOrders: async (filters?: SalesOrderFilters): Promise<PaginatedResponse<SalesOrder>> => {
    const response = await api.get<PaginatedResponse<SalesOrder>>(
      API_ENDPOINTS.SALES.ORDERS,
      { params: filters }
    );
    return response.data;
  },

  getOrderById: async (id: string): Promise<SalesOrder> => {
    const response = await api.get<ApiResponse<SalesOrder>>(
      `${API_ENDPOINTS.SALES.ORDERS}/${id}`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Orden de venta no encontrada');
    }
    return response.data.data;
  },

  createOrder: async (data: CreateSalesOrderDto): Promise<SalesOrder> => {
    const response = await api.post<ApiResponse<SalesOrder>>(
      API_ENDPOINTS.SALES.ORDERS,
      data
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al crear orden de venta');
    }
    return response.data.data;
  },

  updateOrder: async (id: string, data: UpdateSalesOrderDto): Promise<SalesOrder> => {
    const response = await api.patch<ApiResponse<SalesOrder>>(
      `${API_ENDPOINTS.SALES.ORDERS}/${id}`,
      data
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al actualizar orden de venta');
    }
    return response.data.data;
  },

  confirmOrder: async (id: string): Promise<SalesOrder> => {
    const response = await api.post<ApiResponse<SalesOrder>>(
      `${API_ENDPOINTS.SALES.ORDERS}/${id}/confirm`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al confirmar orden de venta');
    }
    return response.data.data;
  },

  cancelOrder: async (id: string): Promise<SalesOrder> => {
    const response = await api.post<ApiResponse<SalesOrder>>(
      `${API_ENDPOINTS.SALES.ORDERS}/${id}/cancel`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al cancelar orden de venta');
    }
    return response.data.data;
  },

  deleteOrder: async (id: string): Promise<void> => {
    const response = await api.delete<ApiResponse>(
      `${API_ENDPOINTS.SALES.ORDERS}/${id}`
    );
    if (!response.data.success) {
      throw new Error(response.data.error || 'Error al eliminar orden de venta');
    }
  },

  // Quotations
  getQuotations: async (filters?: QuotationFilters): Promise<PaginatedResponse<Quotation>> => {
    const response = await api.get<PaginatedResponse<Quotation>>(
      API_ENDPOINTS.SALES.QUOTATIONS,
      { params: filters }
    );
    return response.data;
  },

  getQuotationById: async (id: string): Promise<Quotation> => {
    const response = await api.get<ApiResponse<Quotation>>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Cotizacion no encontrada');
    }
    return response.data.data;
  },

  createQuotation: async (data: CreateQuotationDto): Promise<Quotation> => {
    const response = await api.post<ApiResponse<Quotation>>(
      API_ENDPOINTS.SALES.QUOTATIONS,
      data
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al crear cotizacion');
    }
    return response.data.data;
  },

  updateQuotation: async (id: string, data: UpdateQuotationDto): Promise<Quotation> => {
    const response = await api.patch<ApiResponse<Quotation>>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}`,
      data
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al actualizar cotizacion');
    }
    return response.data.data;
  },

  confirmQuotation: async (id: string): Promise<SalesOrder> => {
    const response = await api.post<ApiResponse<SalesOrder>>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}/confirm`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al confirmar cotizacion');
    }
    return response.data.data;
  },

  sendQuotation: async (id: string): Promise<Quotation> => {
    const response = await api.post<ApiResponse<Quotation>>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}/send`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al enviar cotizacion');
    }
    return response.data.data;
  },

  cancelQuotation: async (id: string): Promise<Quotation> => {
    const response = await api.post<ApiResponse<Quotation>>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}/cancel`
    );
    if (!response.data.success || !response.data.data) {
      throw new Error(response.data.error || 'Error al cancelar cotizacion');
    }
    return response.data.data;
  },

  deleteQuotation: async (id: string): Promise<void> => {
    const response = await api.delete<ApiResponse>(
      `${API_ENDPOINTS.SALES.QUOTATIONS}/${id}`
    );
    if (!response.data.success) {
      throw new Error(response.data.error || 'Error al eliminar cotizacion');
    }
  },
};