wip

packages/domain/value-objects/CheckoutPrice.ts

@@ -0,0 +1,49 @@
+export class CheckoutPrice {
+  private constructor(private readonly amountUsd: number) {
+    if (amountUsd < 0) {
+      throw new Error('Price cannot be negative');
+    }
+    if (amountUsd > 10000) {
+      throw new Error('Price exceeds maximum of $10,000');
+    }
+  }
+
+  static fromString(priceStr: string): CheckoutPrice {
+    const trimmed = priceStr.trim();
+    
+    if (!trimmed.startsWith('$')) {
+      throw new Error('Invalid price format: missing dollar sign');
+    }
+
+    const dollarSignCount = (trimmed.match(/\$/g) || []).length;
+    if (dollarSignCount > 1) {
+      throw new Error('Invalid price format: multiple dollar signs');
+    }
+
+    const numericPart = trimmed.substring(1).replace(/,/g, '');
+    
+    if (numericPart === '') {
+      throw new Error('Invalid price format: no numeric value');
+    }
+
+    const amount = parseFloat(numericPart);
+    
+    if (isNaN(amount)) {
+      throw new Error('Invalid price format: not a valid number');
+    }
+
+    return new CheckoutPrice(amount);
+  }
+
+  toDisplayString(): string {
+    return `$${this.amountUsd.toFixed(2)}`;
+  }
+
+  getAmount(): number {
+    return this.amountUsd;
+  }
+
+  isZero(): boolean {
+    return this.amountUsd < 0.001;
+  }
+}