// frontend/dashboard/src/api/services/salesApi.ts
/**
 * Sales data API service
 */

import { ApiClient } from '../base/apiClient';
import {
  SalesRecord,
  CreateSalesRequest,
  ApiResponse,
} from '../../types/api';

export interface SalesQuery {
  start_date?: string;
  end_date?: string;
  product_name?: string;
  limit?: number;
  offset?: number;
}

export class SalesApi {
  constructor(private client: ApiClient) {}

  async getSales(query: SalesQuery = {}): Promise<SalesRecord[]> {
    return this.client.get<SalesRecord[]>('/data/sales', {
      params: query,
    });
  }

  async createSalesRecord(salesData: CreateSalesRequest): Promise<SalesRecord> {
    return this.client.post<SalesRecord>('/data/sales', salesData);
  }

  async updateSalesRecord(id: string, updates: Partial<CreateSalesRequest>): Promise<SalesRecord> {
    return this.client.patch<SalesRecord>(`/data/sales/${id}`, updates);
  }

  async deleteSalesRecord(id: string): Promise<void> {
    return this.client.delete(`/data/sales/${id}`);
  }

  async bulkCreateSales(salesData: CreateSalesRequest[]): Promise<SalesRecord[]> {
    return this.client.post<SalesRecord[]>('/data/sales/bulk', salesData);
  }

  async uploadSalesFile(
    file: File,
    onProgress?: (progress: number) => void
  ): Promise<{ imported: number; errors: any[] }> {
    return this.client.uploadFile('/data/sales/upload', file, onProgress);
  }

  async getSalesAnalytics(
    startDate: string,
    endDate: string
  ): Promise<{
    totalRevenue: number;
    totalQuantity: number;
    topProducts: Array<{ product_name: string; quantity: number; revenue: number }>;
    dailyTrends: Array<{ date: string; quantity: number; revenue: number }>;
  }> {
    return this.client.get('/data/sales/analytics', {
      params: { start_date: startDate, end_date: endDate },
    });
  }

  async getProductList(): Promise<string[]> {
    return this.client.get<string[]>('/data/sales/products');
  }
}