Enhance shipping zone functionality in CheckoutPage and market types

- Add 'shipping_zones' property to the Stall interface to support LNbits format.
- Update ShippingZone interface to include optional 'countries' property for better zone coverage representation.
- Modify CheckoutPage.vue to display shipping zone details, including a message for zones that do not require physical shipping.
- Improve user feedback by updating messages related to shipping address requirements based on selected shipping zone.
- Refactor logic to auto-select shipping zones and handle cases where no shipping zones are available, enhancing user experience during checkout.

src/modules/market/types/market.ts

@@ -21,6 +21,7 @@ export interface Stall {
   logo?: string
   categories?: string[]
   shipping?: ShippingZone[]
+  shipping_zones?: ShippingZone[]  // LNbits format
   currency: string
   nostrEventId?: string
 }
@@ -94,6 +95,7 @@ export interface ShippingZone {
   name: string
   cost: number
   currency: string
+  countries?: string[]  // Countries/regions this zone covers
   description?: string
   estimatedDays?: string
   requiresPhysicalShipping?: boolean

src/modules/market/views/CheckoutPage.vue

@@ -110,7 +110,15 @@
               <div class="flex justify-between items-center">
                 <div>
                   <h3 class="font-medium text-foreground">{{ zone.name }}</h3>
-                  <p class="text-sm text-muted-foreground">{{ zone.countries?.join(', ') || 'Available' }}</p>
+                  <p class="text-sm text-muted-foreground">
+                    {{ zone.countries?.join(', ') || 'Available' }}
+                    <span v-if="!zone.requiresPhysicalShipping" class="ml-2 text-blue-600">
+                      • No shipping required
+                    </span>
+                  </p>
+                  <p v-if="zone.description" class="text-xs text-muted-foreground mt-1">
+                    {{ zone.description }}
+                  </p>
                 </div>
                 <div class="text-right">
                   <p class="font-semibold text-foreground">
@@ -123,14 +131,15 @@
           </div>
           
           <div v-else class="text-center py-6">
-            <p class="text-muted-foreground">No shipping zones available</p>
+            <p class="text-muted-foreground">This merchant hasn't configured shipping zones yet.</p>
+            <p class="text-sm text-muted-foreground">Please contact the merchant for shipping information.</p>
           </div>
 
           <!-- Confirm Order Button -->
           <div class="mt-6">
             <Button 
               @click="confirmOrder"
-              :disabled="!selectedShippingZone"
+              :disabled="availableShippingZones.length > 0 && !selectedShippingZone"
               class="w-full"
               size="lg"
             >
@@ -172,14 +181,22 @@
           </div>
 
           <div>
-            <Label for="address">Shipping Address</Label>
+            <Label for="address">
+              {{ selectedShippingZone?.requiresPhysicalShipping !== false ? 'Shipping Address' : 'Contact Address (optional)' }}
+            </Label>
             <Textarea 
               id="address"
               v-model="contactData.address"
-              placeholder="Full shipping address..."
+              :placeholder="selectedShippingZone?.requiresPhysicalShipping !== false 
+                ? 'Full shipping address...' 
+                : 'Contact address (optional)...'"
               rows="3"
             />
-            <p class="text-xs text-muted-foreground mt-1">Required for physical shipping</p>
+            <p class="text-xs text-muted-foreground mt-1">
+              {{ selectedShippingZone?.requiresPhysicalShipping !== false 
+                ? 'Required for physical delivery' 
+                : 'Optional for digital items or pickup' }}
+            </p>
           </div>
 
           <div>
@@ -216,15 +233,16 @@
           <div class="pt-4 border-t border-border">
             <Button 
               @click="placeOrder"
-              :disabled="isPlacingOrder || !contactData.address"
+              :disabled="isPlacingOrder || (selectedShippingZone?.requiresPhysicalShipping !== false && !contactData.address)"
               class="w-full"
               size="lg"
             >
               <span v-if="isPlacingOrder" class="animate-spin mr-2">⚡</span>
               Place Order - {{ formatPrice(orderTotal, checkoutCart.currency) }}
             </Button>
-            <p v-if="!contactData.address" class="text-xs text-destructive mt-2 text-center">
+            <p v-if="selectedShippingZone?.requiresPhysicalShipping !== false && !contactData.address" 
-              Shipping address is required
+               class="text-xs text-destructive mt-2 text-center">
+              Shipping address is required for physical delivery
             </p>
           </div>
         </CardContent>
@@ -308,6 +326,11 @@ const stallName = computed(() => {
   return stall?.name || 'Unknown Stall'
 })
 
+const currentStall = computed(() => {
+  if (!checkoutCart.value) return null
+  return marketStore.stalls.find(s => s.id === checkoutCart.value?.id)
+})
+
 const orderSubtotal = computed(() => {
   if (!checkoutCart.value?.products) return 0
   return checkoutCart.value.products.reduce((total, item) => 
@@ -321,12 +344,36 @@ const orderTotal = computed(() => {
   return subtotal + shipping
 })
 
-// Mock shipping zones (in real app, would come from stall data)
+// Get shipping zones from the current stall
-const availableShippingZones = computed(() => [
+const availableShippingZones = computed(() => {
-  { id: 'local', name: 'Local Delivery', cost: 500, countries: ['Local Area'] },
+  if (!currentStall.value) return []
-  { id: 'national', name: 'National Shipping', cost: 2000, countries: ['Domestic'] },
+  
-  { id: 'international', name: 'International', cost: 5000, countries: ['Worldwide'] }
+  // Check if stall has shipping_zones (LNbits format) or shipping (nostr-market-app format)
-])
+  const zones = currentStall.value.shipping_zones || currentStall.value.shipping || []
+  
+  // Ensure zones have required properties and determine shipping requirements
+  return zones.map(zone => {
+    const zoneName = zone.name || 'Shipping Zone'
+    const lowerName = zoneName.toLowerCase()
+    
+    // Determine if this zone requires physical shipping
+    const requiresPhysicalShipping = zone.requiresPhysicalShipping !== false && 
+      !lowerName.includes('digital') && 
+      !lowerName.includes('pickup') && 
+      !lowerName.includes('download') && 
+      zone.cost > 0 // Free usually means digital or pickup
+    
+    return {
+      id: zone.id || zoneName.toLowerCase().replace(/\s+/g, '-'),
+      name: zoneName,
+      cost: Number(zone.cost) || 0,
+      countries: zone.countries || [],
+      currency: zone.currency || currentStall.value?.currency || 'sats',
+      requiresPhysicalShipping,
+      description: zone.description
+    }
+  })
+})
 
 // Methods
 const selectShippingZone = (zone: any) => {
@@ -334,7 +381,8 @@ const selectShippingZone = (zone: any) => {
 }
 
 const confirmOrder = () => {
-  if (!selectedShippingZone.value) {
+  // Allow proceeding if no shipping zones are available (e.g., for digital goods)
+  if (availableShippingZones.value.length > 0 && !selectedShippingZone.value) {
     error.value = 'Please select a shipping zone'
     return
   }
@@ -342,8 +390,11 @@ const confirmOrder = () => {
 }
 
 const placeOrder = async () => {
-  if (!contactData.value.address) {
+  // Only require shipping address if selected zone requires physical shipping
-    error.value = 'Shipping address is required'
+  const requiresShippingAddress = selectedShippingZone.value?.requiresPhysicalShipping !== false
+  
+  if (requiresShippingAddress && !contactData.value.address) {
+    error.value = 'Shipping address is required for this delivery method'
     return
   }
 
@@ -392,6 +443,12 @@ onMounted(() => {
   if (!cart || cart.id !== stallId.value) {
     error.value = 'No checkout data found for this stall'
   }
+  
+  // Auto-select shipping zone if there's only one
+  if (availableShippingZones.value.length === 1) {
+    selectedShippingZone.value = availableShippingZones.value[0]
+  }
+  
   isLoading.value = false
 })
 </script>