feat: migrate commerce (#106)

Author: Shinigami92

src/commerce.ts

@@ -0,0 +1,151 @@
+import type { Faker } from '.';
+
+export class Commerce {
+  constructor(private readonly faker: Faker) {
+    // Bind `this` so namespaced is working correctly
+    for (const name of Object.getOwnPropertyNames(Commerce.prototype)) {
+      if (name === 'constructor' || typeof this[name] !== 'function') {
+        continue;
+      }
+      this[name] = this[name].bind(this);
+    }
+  }
+
+  /**
+   * color
+   *
+   * @method faker.commerce.color
+   */
+  color(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.color
+    );
+  }
+
+  /**
+   * department
+   *
+   * @method faker.commerce.department
+   */
+  department(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.department
+    );
+  }
+
+  /**
+   * productName
+   *
+   * @method faker.commerce.productName
+   */
+  productName(): string {
+    return (
+      this.faker.commerce.productAdjective() +
+      ' ' +
+      this.faker.commerce.productMaterial() +
+      ' ' +
+      this.faker.commerce.product()
+    );
+  }
+
+  /**
+   * price
+   *
+   * @method faker.commerce.price
+   * @param min
+   * @param max
+   * @param dec
+   * @param symbol
+   */
+  price(
+    min: number = 1,
+    max: number = 1000,
+    dec: number = 2,
+    symbol: string = ''
+  ): string {
+    if (min < 0 || max < 0) {
+      return symbol + 0.0;
+    }
+
+    const randValue = this.faker.datatype.number({ max: max, min: min });
+
+    return (
+      symbol +
+      (Math.round(randValue * Math.pow(10, dec)) / Math.pow(10, dec)).toFixed(
+        dec
+      )
+    );
+  }
+
+  // TODO @Shinigami92 2022-01-12: unimplemented member functions
+
+  /*
+    categories (num) {
+        var categories = [];
+
+        do {
+            var category = this.faker.random.arrayElement(this.faker.definitions.commerce.department);
+            if(categories.indexOf(category) === -1) {
+                categories.push(category);
+            }
+        } while(categories.length < num);
+
+        return categories;
+    };
+
+    */
+  /*
+    mergeCategories (categories) {
+        var separator = this.faker.definitions.separator || " &";
+        // TODO: find undefined here
+        categories = categories || this.faker.definitions.commerce.categories;
+        var commaSeparated = categories.slice(0, -1).join(', ');
+
+        return [commaSeparated, categories[categories.length - 1]].join(separator + " ");
+    };
+    */
+
+  /**
+   * productAdjective
+   *
+   * @method faker.commerce.productAdjective
+   */
+  productAdjective(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.product_name.adjective
+    );
+  }
+
+  /**
+   * productMaterial
+   *
+   * @method faker.commerce.productMaterial
+   */
+  productMaterial(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.product_name.material
+    );
+  }
+
+  /**
+   * product
+   *
+   * @method faker.commerce.product
+   */
+  product(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.product_name.product
+    );
+  }
+
+  /**
+   * productDescription
+   *
+   * @method faker.commerce.productDescription
+   */
+  productDescription(): string {
+    return this.faker.random.arrayElement(
+      this.faker.definitions.commerce.product_description
+    );
+  }
+}

src/index.ts

@@ -1,4 +1,5 @@
 import { Animal } from './animal';
+import { Commerce } from './commerce';
 import { Database } from './database';
 import { Datatype } from './datatype';
 import { _Date } from './date';
@@ -176,7 +177,7 @@ export class Faker {
 
   readonly address = new (require('./address'))(this);
   readonly animal: Animal = new Animal(this);
-  readonly commerce = new (require('./commerce'))(this);
+  readonly commerce: Commerce = new Commerce(this);
   readonly company = new (require('./company'))(this);
   readonly database: Database = new Database(this);
   readonly date: _Date = new _Date(this);