feat(hiboutik): add Hiboutik API client, repositories and DTOs

src/hiboutik/brand.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { HiboutikClient } from './hiboutik.client';
+import { BrandHiboutikDto } from '../models/hiboutikDTO/brand.hiboutik.dto';
+
+/** Reads brands from the Hiboutik API. */
+@Injectable()
+export class BrandHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  async getBrands(): Promise<BrandHiboutikDto[]> {
+    return this.hiboutikClient.getAllPages<BrandHiboutikDto>('/brands', {
+      order_by: 'brand_id',
+      sort: 'ASC',
+    });
+  }
+}

src/hiboutik/category.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { CategoryHiboutikDto } from '../models/hiboutikDTO/category.hiboutik.dto';
+import { HiboutikClient } from './hiboutik.client';
+
+/** Reads categories from the Hiboutik API. */
+@Injectable()
+export class CategoryHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  /** Sorted by parent id, which does not guarantee that a parent comes before its children. */
+  async getCategories(): Promise<CategoryHiboutikDto[]> {
+    return this.hiboutikClient.getAllPages<CategoryHiboutikDto>('/categories', {
+      order_by: 'category_id_parent',
+      sort: 'ASC',
+    });
+  }
+}

src/hiboutik/customer.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { HiboutikClient } from './hiboutik.client';
+import { CustomerHiboutikDto, FullCustomerHiboutikDto } from '../models/hiboutikDTO/customer.hiboutik.dto';
+
+/** Reads customers from the Hiboutik API. */
+@Injectable()
+export class CustomerHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  /** Customer summaries only: use {@link getCustomerById} for addresses and sales. */
+  async getCustomers(): Promise<CustomerHiboutikDto[]> {
+    return this.hiboutikClient.getAllPages<CustomerHiboutikDto>('/customers');
+  }
+
+  /**
+   * Full customer, with its addresses and sales (Hiboutik answers with a one-element array).
+   * @throws if the customer does not exist.
+   */
+  async getCustomerById(id: number): Promise<FullCustomerHiboutikDto> {
+    const data = await this.hiboutikClient.get<FullCustomerHiboutikDto[]>('/customer/' + String(id));
+    const customer = data[0];
+    if (!customer) throw new Error(`Hiboutik customer ${id} not found`);
+    return customer;
+  }
+}

src/hiboutik/hiboutik.client.ts

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+import { Injectable } from '@nestjs/common';
+import { HttpService } from '@nestjs/axios';
+import { ConfigService } from '@nestjs/config';
+import { firstValueFrom } from 'rxjs';
+
+/** Results per page of every paginated Hiboutik endpoint (see "Results per page" in the API docs). */
+const HIBOUTIK_PAGE_SIZE = 250;
+
+/** Low-level HTTP client for the Hiboutik REST API: base URL and Basic auth credentials come from the environment. */
+@Injectable()
+export class HiboutikClient {
+  private readonly baseUrl: string;
+  private readonly authHeader: string;
+
+  constructor(
+    private readonly httpService: HttpService,
+    private readonly configService: ConfigService,
+  ) {
+    const username = this.configService.get<string>('HIBOUTIK_USERNAME') ?? '';
+    const password = this.configService.get<string>('HIBOUTIK_PASSWORD') ?? '';
+    this.authHeader = `Basic ${Buffer.from(`${username}:${password}`).toString('base64')}`;
+    this.baseUrl = this.configService.get<string>('HIBOUTIK_BASE_URL') ?? '';
+  }
+
+  /** GET on a Hiboutik path (relative to `HIBOUTIK_BASE_URL`), returns the response body. */
+  async get<T>(path: string, params?: Record<string, unknown>): Promise<T> {
+    const response = await firstValueFrom(
+      this.httpService.get<T>(`${this.baseUrl}${path}`, {
+        headers: { Authorization: this.authHeader },
+        params,
+      }),
+    );
+    return response.data;
+  }
+
+  /**
+   * Fetches every page of a paginated endpoint (`p` param, starting at 1) and concatenates the results.
+   * Only for paginated endpoints: on a non-paginated one, a full first page would loop forever on the same results.
+   */
+  async getAllPages<T>(path: string, baseParams: Record<string, unknown> = {}): Promise<T[]> {
+    const results: T[] = [];
+    let page = 1;
+
+    while (true) {
+      const pageData = await this.get<T[]>(path, { ...baseParams, p: page });
+      if (!pageData || pageData.length === 0) break;
+      results.push(...pageData);
+      // A page smaller than the page size is the last one: no need to request an empty page
+      if (pageData.length < HIBOUTIK_PAGE_SIZE) break;
+      page++;
+    }
+
+    return results;
+  }
+}

src/hiboutik/product.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { HiboutikClient } from './hiboutik.client';
+import { ProductHiboutikDto } from '../models/hiboutikDTO/product.hiboutik.dto';
+
+/** Reads products from the Hiboutik API. */
+@Injectable()
+export class ProductHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  /** All products, archived ones included, with their sizes and per-size rules. */
+  async getProducts(): Promise<ProductHiboutikDto[]> {
+    return this.hiboutikClient.getAllPages<ProductHiboutikDto>('/products', {
+      order_by: 'product_id',
+      sort: 'ASC',
+    });
+  }
+}

src/hiboutik/stock.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { HiboutikClient } from './hiboutik.client';
+import { StockHiboutikDto } from '../models/hiboutikDTO/stock.hiboutik.dto';
+
+/** Reads available stocks from the Hiboutik API. */
+@Injectable()
+export class StockHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  /** Stock of every product and size, all warehouses combined. Not paginated. */
+  async getStocks(): Promise<StockHiboutikDto[]> {
+    const stocks = await this.hiboutikClient.get<StockHiboutikDto[]>('/stock_available/all_wh', {});
+    // Hiboutik may return ids as strings: normalize them so strict comparisons work downstream
+    return stocks.map((stock) => ({
+      ...stock,
+      product_id: Number(stock.product_id),
+      product_size: Number(stock.product_size),
+    }));
+  }
+}

src/hiboutik/supplier.hiboutik.repository.ts

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+import { Injectable } from '@nestjs/common';
+import { HiboutikClient } from './hiboutik.client';
+import { SupplierHiboutikDto } from '../models/hiboutikDTO/supplier.hiboutik.dto';
+
+/** Reads suppliers from the Hiboutik API. */
+@Injectable()
+export class SupplierHiboutikRepository {
+  constructor(private readonly hiboutikClient: HiboutikClient) {}
+
+  /** `/suppliers` is not paginated: everything comes in one call. */
+  async getSuppliers(): Promise<SupplierHiboutikDto[]> {
+    return this.hiboutikClient.get<SupplierHiboutikDto[]>('/suppliers', {
+      order_by: 'supplier_id',
+      sort: 'ASC',
+    });
+  }
+}

src/models/hiboutikDTO/brand.hiboutik.dto.ts

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+/** Brand as returned by Hiboutik `GET /brands`. */
+export interface BrandHiboutikDto {
+  brand_id: number;
+  brand_name: string;
+  /** 1 = enabled, 0 = disabled. */
+  brand_enabled: number;
+}

src/models/hiboutikDTO/category.hiboutik.dto.ts

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+/** Category as returned by Hiboutik `GET /categories`. */
+export interface CategoryHiboutikDto {
+  category_id: number;
+  category_name: string;
+  /** Id of the parent category, 0 for a root category. */
+  category_id_parent: number;
+  /** Enabled in the POS: 1 = yes, 0 = no. */
+  category_enabled: number;
+  /** Displayed on the website: 1 = yes, 0 = no. */
+  category_enabled_www: number;
+  /** Display order among its siblings. */
+  category_position: number;
+  category_bck_color: string;
+  category_color: string;
+  category_desc: string;
+  accounting_account: string;
+  category_ref_ext: string;
+}

src/models/hiboutikDTO/customer.hiboutik.dto.ts

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+/** Customer summary as returned by Hiboutik `GET /customers` (no addresses nor sales). */
+export interface CustomerHiboutikDto {
+  customers_id: number;
+  last_name: string;
+  first_name: string;
+  company: string;
+  email: string;
+  phone: string;
+  vat: string;
+  country: string;
+  /** "YYYY-MM-DD", "0000-00-00" when unknown. */
+  date_of_birth: string;
+  customers_code: string;
+  loyalty_points: number;
+  intial_loyalty_points: number;
+  validity: string;
+  prepaid_purchases: string;
+  store_credit: string;
+  turnover: string;
+  orders: number;
+  customer_ref_ext: string;
+  last_order_date: string;
+  /** Local time, "YYYY-MM-DD HH:mm:ss". */
+  updated_at: string;
+}
+
+/** Full customer as returned by Hiboutik `GET /customer/:customers_id`, with its addresses and sales. */
+export interface FullCustomerHiboutikDto extends CustomerHiboutikDto {
+  gender: number;
+  comments: string;
+  customers_id_referrer: number;
+  customers_misc: string;
+  accounting_account: string;
+  addresses: CustomerAddressHiboutikDto[];
+  sales: CustomerSaleHiboutikDto[];
+  tags: unknown[];
+  customers_referee: unknown[];
+}
+
+/** Address of a customer, embedded in {@link FullCustomerHiboutikDto}. Name and phone can differ from the customer's. */
+export interface CustomerAddressHiboutikDto {
+  address_id: number;
+  gender: string;
+  first_name: string;
+  last_name: string;
+  creation_date: string;
+  email: string;
+  phone: string;
+  company: string;
+  address: string;
+  zip_code: string;
+  city: string;
+  state: string;
+  country: string;
+  customers_id: number;
+  display: number;
+  editable: number;
+  /** 1 for the customer's default address. */
+  default: number;
+  other: string;
+}
+
+/** Sale header embedded in {@link FullCustomerHiboutikDto}: no sale lines, they come from `GET /sales/:sale_id`. */
+export interface CustomerSaleHiboutikDto {
+  sale_id: number;
+  created_at: string;
+  completed_at: string;
+  date_z: number;
+  store_id: number;
+  vendor_id: number;
+  unique_sale_id: string;
+  customer_id: number;
+  currency: string;
+  /** Decimal as a string. */
+  total: string;
+  points: number;
+  billing_address: number;
+  shipping_address: number;
+}

src/models/hiboutikDTO/product.hiboutik.dto.ts

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+/** Product as returned by Hiboutik `GET /products` (archived products included). */
+export interface ProductHiboutikDto {
+  product_id: number;
+  /** Product name. */
+  product_model: string;
+  /** Empty string when the product has no barcode. */
+  product_barcode: string;
+  /** Brand id, 0 when none. */
+  product_brand: number;
+  /** Supplier id, 0 when none. */
+  product_supplier: number;
+  /** Decimal as a string, e.g. "13.99". */
+  product_price: string;
+  /** "0.00" when the product has no discount. */
+  product_discount_price: string;
+  product_supply_price: string;
+  /** Category id, 0 when none. */
+  product_category: number;
+  /** Displayed on the website: 1 = yes, 0 = no. */
+  product_display_www: number;
+  /** Archived: 1 = yes, 0 = no. */
+  product_arch: number;
+  products_desc: string;
+  /** Local time, "YYYY-MM-DD HH:mm:ss". */
+  updated_at: string;
+  /** Per-size overrides of the product's price, discount and barcode. */
+  product_specific_rules: ProductSpecificRulesHiboutikDto[];
+  /** Sizes of the product; missing or empty for a product without sizes. */
+  product_size_details?: ProductSizeDetailsHiboutikDto[];
+}
+
+/** Override of a product's values for one size. Prices are "0.00" (or missing) when not overridden. */
+export interface ProductSpecificRulesHiboutikDto {
+  size_id: number;
+  barcode: string;
+  product_price?: string;
+  product_discount_price?: string;
+}
+
+/** One size of a product (e.g. "S", "M"). */
+export interface ProductSizeDetailsHiboutikDto {
+  size_id: number;
+  size_name: string;
+  /** Empty string when the size has no barcode. */
+  barcode: string;
+}

src/models/hiboutikDTO/stock.hiboutik.dto.ts

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+/** Available stock of one product size, as returned by Hiboutik `GET /stock_available/all_wh` (all warehouses). */
+export interface StockHiboutikDto {
+  product_id: number;
+  /** Size id, 0 for a product without sizes. */
+  product_size: number;
+  /** Decimal as a string, e.g. "3". Stays at 0 while stock management is disabled in Hiboutik. */
+  stock_available: string;
+  product_barcode: string;
+  product_supplier_reference: string;
+}

src/models/hiboutikDTO/supplier.hiboutik.dto.ts

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+/** Supplier as returned by Hiboutik `GET /suppliers`. */
+export interface SupplierHiboutikDto {
+  supplier_id: number;
+  supplier_name: string;
+  /** 1 = enabled, 0 = disabled. */
+  supplier_enabled: number;
+}