Product Data Model, Repository Contract, and Service APIs

export type ProductId = string;

export interface Product {
  id: ProductId;
  code: string;
  description: string;
  unit: string;
  price: number;
  category: string;
}

export interface ProductRepository {
  search(query: string, category?: string, page?: number, limit?: number): Promise<{ products: Product[], total: number }>;
  save(product: Product): Promise<void>;
  update(product: Product): Promise<void>;
  delete(id: ProductId): Promise<void>;
  saveAll(products: Product[]): Promise<void>;
}

export class SearchProducts {
  constructor(private readonly repository: ProductRepository) {}

  async execute(query: string, category?: string, page: number = 1, limit: number = 10) {
    return this.repository.search(query, category, page, limit);
  }
}

export class ExcelService {
  static parseExcel(file: File): Promise<Product[]>;
  static exportToExcel(products: Product[], fileName: string = 'productos.xlsx'): void;
}

@import "tailwindcss";

@theme {
  --font-sans: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --color-primary: #004a99;       /* Main brand blue */
  --color-accent: #f07d00;        /* Amber accent (AI search, warnings) */
  --color-app-bg: #f4f7f9;        /* App background */
  --color-surface: #ffffff;       /* Card/panel surface */
  --color-text-main: #1a1c1e;     /* Primary text */
  --color-text-muted: #64748b;    /* Secondary text */
  --color-border-subtle: #e2e8f0; /* Borders */
  --color-success: #10b981;       /* Success green */
}