fix: add required email and country fields to checkout

- Add email field (required) for order confirmation
- Add phone field in contact info section
- Add country dropdown with regional options
- Add validation for email format and required fields
- Add checkoutEmailUpdate mutation call before completing
- Use selected country instead of hardcoded RS
- Add translations for new fields (EN, SR, DE, FR)

src/app/[locale]/checkout/page.tsx

@@ -14,6 +14,7 @@ import {
   CHECKOUT_SHIPPING_ADDRESS_UPDATE,
   CHECKOUT_BILLING_ADDRESS_UPDATE,
   CHECKOUT_COMPLETE,
+  CHECKOUT_EMAIL_UPDATE,
 } from "@/lib/saleor/mutations/Checkout";
 import type { Checkout } from "@/types/saleor";
 
@@ -38,6 +39,13 @@ interface CheckoutCompleteResponse {
   };
 }
 
+interface EmailUpdateResponse {
+  checkoutEmailUpdate?: {
+    checkout?: Checkout;
+    errors?: Array<{ message: string }>;
+  };
+}
+
 interface AddressForm {
   firstName: string;
   lastName: string;
@@ -45,7 +53,9 @@ interface AddressForm {
   streetAddress2: string;
   city: string;
   postalCode: string;
+  country: string;
   phone: string;
+  email: string;
 }
 
 export default function CheckoutPage() {
@@ -66,7 +76,9 @@ export default function CheckoutPage() {
     streetAddress2: "",
     city: "",
     postalCode: "",
+    country: "RS",
     phone: "",
+    email: "",
   });
   const [billingAddress, setBillingAddress] = useState<AddressForm>({
     firstName: "",
@@ -75,7 +87,9 @@ export default function CheckoutPage() {
     streetAddress2: "",
     city: "",
     postalCode: "",
+    country: "RS",
     phone: "",
+    email: "",
   });
 
   const lines = getLines();
@@ -89,7 +103,7 @@ export default function CheckoutPage() {
 
   const handleShippingChange = (field: keyof AddressForm, value: string) => {
     setShippingAddress((prev) => ({ ...prev, [field]: value }));
-    if (sameAsShipping) {
+    if (sameAsShipping && field !== "email") {
       setBillingAddress((prev) => ({ ...prev, [field]: value }));
     }
   };
@@ -98,6 +112,10 @@ export default function CheckoutPage() {
     setBillingAddress((prev) => ({ ...prev, [field]: value }));
   };
 
+  const handleEmailChange = (value: string) => {
+    setShippingAddress((prev) => ({ ...prev, email: value }));
+  };
+
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
 
@@ -106,17 +124,45 @@ export default function CheckoutPage() {
       return;
     }
 
+    if (!shippingAddress.email || !shippingAddress.email.includes("@")) {
+      setError(t("errorEmailRequired"));
+      return;
+    }
+
+    if (!shippingAddress.firstName || !shippingAddress.lastName || !shippingAddress.streetAddress1 || !shippingAddress.city || !shippingAddress.postalCode || !shippingAddress.phone) {
+      setError(t("errorFieldsRequired"));
+      return;
+    }
+
     setIsLoading(true);
     setError(null);
 
     try {
+      const emailResult = await saleorClient.mutate<EmailUpdateResponse>({
+        mutation: CHECKOUT_EMAIL_UPDATE,
+        variables: {
+          checkoutId: checkout.id,
+          email: shippingAddress.email,
+        },
+      });
+
+      if (emailResult.data?.checkoutEmailUpdate?.errors && emailResult.data.checkoutEmailUpdate.errors.length > 0) {
+        throw new Error(emailResult.data.checkoutEmailUpdate.errors[0].message);
+      }
+
       const shippingResult = await saleorClient.mutate<ShippingAddressUpdateResponse>({
         mutation: CHECKOUT_SHIPPING_ADDRESS_UPDATE,
         variables: {
           checkoutId: checkout.id,
           shippingAddress: {
-            ...shippingAddress,
+            firstName: shippingAddress.firstName,
-            country: "RS",
+            lastName: shippingAddress.lastName,
+            streetAddress1: shippingAddress.streetAddress1,
+            streetAddress2: shippingAddress.streetAddress2,
+            city: shippingAddress.city,
+            postalCode: shippingAddress.postalCode,
+            country: shippingAddress.country,
+            phone: shippingAddress.phone,
           },
         },
       });
@@ -130,8 +176,14 @@ export default function CheckoutPage() {
         variables: {
           checkoutId: checkout.id,
           billingAddress: {
-            ...billingAddress,
+            firstName: billingAddress.firstName,
-            country: "RS",
+            lastName: billingAddress.lastName,
+            streetAddress1: billingAddress.streetAddress1,
+            streetAddress2: billingAddress.streetAddress2,
+            city: billingAddress.city,
+            postalCode: billingAddress.postalCode,
+            country: billingAddress.country,
+            phone: billingAddress.phone,
           },
         },
       });
@@ -227,6 +279,36 @@ export default function CheckoutPage() {
             <div className="grid grid-cols-1 lg:grid-cols-2 gap-12">
               <div>
                 <form onSubmit={handleSubmit} className="space-y-6">
+                  <div className="border-b border-border pb-6">
+                    <h2 className="text-xl font-serif mb-4">{t("contactInfo")}</h2>
+                    <div className="grid grid-cols-1 gap-4">
+                      <div>
+                        <label className="block text-sm font-medium mb-1">{t("email")}</label>
+                        <input
+                          type="email"
+                          required
+                          value={shippingAddress.email}
+                          onChange={(e) => handleEmailChange(e.target.value)}
+                          className="w-full border border-border px-4 py-2 rounded"
+                          placeholder="email@example.com"
+                        />
+                        <p className="text-xs text-foreground-muted mt-1">{t("emailRequired")}</p>
+                      </div>
+                      <div>
+                        <label className="block text-sm font-medium mb-1">{t("phone")}</label>
+                        <input
+                          type="tel"
+                          required
+                          value={shippingAddress.phone}
+                          onChange={(e) => handleShippingChange("phone", e.target.value)}
+                          className="w-full border border-border px-4 py-2 rounded"
+                          placeholder="+381..."
+                        />
+                        <p className="text-xs text-foreground-muted mt-1">{t("phoneRequired")}</p>
+                      </div>
+                    </div>
+                  </div>
+
                   <div className="border-b border-border pb-6">
                     <h2 className="text-xl font-serif mb-4">{t("shippingAddress")}</h2>
                     <div className="grid grid-cols-2 gap-4">
@@ -250,6 +332,35 @@ export default function CheckoutPage() {
                           className="w-full border border-border px-4 py-2 rounded"
                         />
                       </div>
+                      <div className="col-span-2">
+                        <label className="block text-sm font-medium mb-1">{t("country")}</label>
+                        <select
+                          required
+                          value={shippingAddress.country}
+                          onChange={(e) => handleShippingChange("country", e.target.value)}
+                          className="w-full border border-border px-4 py-2 rounded"
+                        >
+                          <option value="RS">Serbia (Srbija)</option>
+                          <option value="BA">Bosnia and Herzegovina</option>
+                          <option value="ME">Montenegro</option>
+                          <option value="HR">Croatia</option>
+                          <option value="SI">Slovenia</option>
+                          <option value="MK">North Macedonia</option>
+                          <option value="AL">Albania</option>
+                          <option value="XK">Kosovo</option>
+                          <option value="BG">Bulgaria</option>
+                          <option value="RO">Romania</option>
+                          <option value="HU">Hungary</option>
+                          <option value="DE">Germany</option>
+                          <option value="AT">Austria</option>
+                          <option value="CH">Switzerland</option>
+                          <option value="FR">France</option>
+                          <option value="GB">United Kingdom</option>
+                          <option value="US">United States</option>
+                          <option value="CA">Canada</option>
+                          <option value="AU">Australia</option>
+                        </select>
+                      </div>
                       <div className="col-span-2">
                         <label className="block text-sm font-medium mb-1">{t("streetAddress")}</label>
                         <input
@@ -289,16 +400,6 @@ export default function CheckoutPage() {
                           className="w-full border border-border px-4 py-2 rounded"
                         />
                       </div>
-                      <div className="col-span-2">
-                        <label className="block text-sm font-medium mb-1">{t("phone")}</label>
-                        <input
-                          type="tel"
-                          required
-                          value={shippingAddress.phone}
-                          onChange={(e) => handleShippingChange("phone", e.target.value)}
-                          className="w-full border border-border px-4 py-2 rounded"
-                        />
-                      </div>
                     </div>
                   </div>
 

src/i18n/messages/de.json

@@ -340,7 +340,12 @@
   },
   "Checkout": {
     "checkout": "Kasse",
+    "contactInfo": "Kontaktinformationen",
+    "email": "E-Mail",
+    "emailRequired": "Erforderlich für Bestellbestätigung",
+    "phoneRequired": "Erforderlich für Lieferkoordination",
     "shippingAddress": "Lieferadresse",
+    "country": "Land",
     "firstName": "Vorname",
     "lastName": "Nachname",
     "streetAddress": "Straße und Nummer",
@@ -364,6 +369,8 @@
     "yourCartEmpty": "Ihr Warenkorb ist leer",
     "continueShopping": "Weiter einkaufen",
     "errorNoCheckout": "Keine aktive Kasse. Bitte versuchen Sie es erneut.",
+    "errorEmailRequired": "Bitte geben Sie eine gültige E-Mail-Adresse ein.",
+    "errorFieldsRequired": "Bitte füllen Sie alle erforderlichen Felder aus.",
     "errorOccurred": "Ein Fehler ist during des Checkouts aufgetreten.",
     "errorCreatingOrder": "Bestellung konnte nicht erstellt werden.",
     "orderConfirmed": "Bestellung bestätigt!",

src/i18n/messages/en.json

@@ -386,7 +386,12 @@
   },
   "Checkout": {
     "checkout": "Checkout",
+    "contactInfo": "Contact Information",
+    "email": "Email",
+    "emailRequired": "Required for order confirmation",
+    "phoneRequired": "Required for delivery coordination",
     "shippingAddress": "Shipping Address",
+    "country": "Country",
     "firstName": "First Name",
     "lastName": "Last Name",
     "streetAddress": "Street Address",
@@ -410,6 +415,8 @@
     "yourCartEmpty": "Your cart is empty",
     "continueShopping": "Continue Shopping",
     "errorNoCheckout": "No active checkout. Please try again.",
+    "errorEmailRequired": "Please enter a valid email address.",
+    "errorFieldsRequired": "Please fill in all required fields.",
     "errorOccurred": "An error occurred during checkout.",
     "errorCreatingOrder": "Failed to create order.",
     "orderConfirmed": "Order Confirmed!",

src/i18n/messages/fr.json

@@ -340,7 +340,12 @@
   },
   "Checkout": {
     "checkout": "Commande",
+    "contactInfo": "Coordonnées",
+    "email": "E-mail",
+    "emailRequired": "Requis pour la confirmation de commande",
+    "phoneRequired": "Requis pour la coordination de livraison",
     "shippingAddress": "Adresse de Livraison",
+    "country": "Pays",
     "firstName": "Prénom",
     "lastName": "Nom",
     "streetAddress": "Rue et Numéro",
@@ -364,6 +369,8 @@
     "yourCartEmpty": "Votre panier est vide",
     "continueShopping": "Continuer les Achats",
     "errorNoCheckout": "Pas de paiement actif. Veuillez réessayer.",
+    "errorEmailRequired": "Veuillez entrer une adresse e-mail valide.",
+    "errorFieldsRequired": "Veuillez remplir tous les champs obligatoires.",
     "errorOccurred": "Une erreur s'est produite lors du paiement.",
     "errorCreatingOrder": "Échec de la création de la commande.",
     "orderConfirmed": "Commande Confirmée!",

src/i18n/messages/sr.json

@@ -386,7 +386,12 @@
   },
   "Checkout": {
     "checkout": "Kupovina",
+    "contactInfo": "Kontakt informacije",
+    "email": "Email",
+    "emailRequired": "Potrebno za potvrdu narudžbine",
+    "phoneRequired": "Potrebno za koordinaciju dostave",
     "shippingAddress": "Adresa za dostavu",
+    "country": "Država",
     "firstName": "Ime",
     "lastName": "Prezime",
     "streetAddress": "Ulica i broj",
@@ -410,6 +415,8 @@
     "yourCartEmpty": "Vaša korpa je prazna",
     "continueShopping": "Nastavi kupovinu",
     "errorNoCheckout": "Nema aktivne korpe. Molimo pokušajte ponovo.",
+    "errorEmailRequired": "Molimo unesite validnu email adresu.",
+    "errorFieldsRequired": "Molimo popunite sva obavezna polja.",
     "errorOccurred": "Došlo je do greške prilikom kupovine.",
     "errorCreatingOrder": "Neuspešno kreiranje narudžbine.",
     "orderConfirmed": "Narudžbina potvrđena!",