feat(Ad): Add price per square meter for real estates ads

Fixes #385

src/app/ad/ad.ts

@@ -136,6 +136,14 @@ export class Ad {
     return this.props?.price?.[0].toString() || '?';
   }
 
+  private getPricePerSquareMeter() {
+    const price = this.props.price[0];
+    const square = this.props.attributes.find((attr) => attr.key === 'square');
+    const squarePrice = Number(square.value);
+    const pricePerSquareMeter = price / squarePrice;
+    return pricePerSquareMeter.toFixed(0);
+  }
+
   private getName() {
     return `${this.props.location.zipcode} - ${this.props.list_id} - ${this.props.subject} - ${this.getPrice()} euros`;
   }
@@ -164,6 +172,10 @@ export class Ad {
     }
   }
 
+  private get isRealEstateSale(): boolean {
+    return this.props.category_name === 'Ventes immobilières';
+  }
+
   private printAttributes(): void {
     // Title
     this.pdf.printText({
@@ -183,6 +195,13 @@ export class Ad {
         });
       }
     });
+
+    if (this.isRealEstateSale) {
+      this.pdf.printText({
+        text: `Prix au m² : ${this.getPricePerSquareMeter()} €/m²`,
+        size: FONT_SIZES.small,
+      });
+    }
   }
 
   private buildDescription(): void {