feat: add GSTIN fields in core

buzz/api/__init__.py

@@ -332,6 +332,9 @@ def process_booking(
 	payment_proof: str | None = None,
 	is_offline: bool = False,
 	offline_payment_method: str | None = None,
+	invoice_requested: bool = False,
+	tax_id: str | None = None,
+	billing_address: str | None = None,
 ) -> dict:
 	event_doc = frappe.get_cached_doc("Buzz Event", event)
 	if not event_doc.is_published:
@@ -378,6 +381,11 @@ def process_booking(
 	booking.coupon_code = coupon_code
 	booking.user = booking_user
 
+	if event_doc.apply_tax and invoice_requested:
+		booking.invoice_requested = 1
+		booking.tax_id = tax_id
+		booking.billing_address = billing_address
+
 	if utm_parameters:
 		for utm_param in utm_parameters:
 			booking.append(

buzz/ticketing/doctype/event_booking/event_booking.json

@@ -32,6 +32,11 @@
   "currency",
   "coupon_code",
   "discount_amount",
+  "billing_details_section",
+  "invoice_requested",
+  "tax_id",
+  "column_break_billing",
+  "billing_address",
   "section_break_sdfp",
   "amended_from",
   "marketing_tab",
@@ -176,6 +181,28 @@
    "options": "currency",
    "read_only": 1
   },
+  {
+   "fieldname": "billing_details_section",
+   "fieldtype": "Section Break",
+   "label": "Billing Details"
+  },
+  {
+   "depends_on": "eval:doc.invoice_requested==1",
+   "fieldname": "tax_id",
+   "fieldtype": "Data",
+   "label": "Tax ID"
+  },
+  {
+   "fieldname": "column_break_billing",
+   "fieldtype": "Column Break"
+  },
+  {
+   "depends_on": "eval:doc.invoice_requested==1",
+   "fieldname": "billing_address",
+   "fieldtype": "Small Text",
+   "label": "Billing Address",
+   "mandatory_depends_on": "eval:doc.invoice_requested==1"
+  },
   {
    "fieldname": "section_break_status",
    "fieldtype": "Section Break",
@@ -224,6 +251,12 @@
    "fieldtype": "Data",
    "label": "Offline Payment Method",
    "read_only": 1
+  },
+  {
+   "default": "0",
+   "fieldname": "invoice_requested",
+   "fieldtype": "Check",
+   "label": "Invoice Requested"
   }
  ],
  "grid_page_length": 50,
@@ -239,7 +272,7 @@
    "link_fieldname": "reference_docname"
   }
  ],
- "modified": "2026-02-05 09:10:22.542973",
+ "modified": "2026-05-03 07:18:23.131237",
  "modified_by": "Administrator",
  "module": "Ticketing",
  "name": "Event Booking",

buzz/ticketing/doctype/event_booking/event_booking.py

@@ -26,15 +26,20 @@ class EventBooking(Document):
 		additional_fields: DF.Table[AdditionalField]
 		amended_from: DF.Link | None
 		attendees: DF.Table[EventBookingAttendee]
+		billing_address: DF.SmallText | None
 		coupon_code: DF.Link | None
 		currency: DF.Link
 		discount_amount: DF.Currency
 		event: DF.Link
+		invoice_requested: DF.Check
 		naming_series: DF.Literal["B.###"]
 		net_amount: DF.Currency
+		offline_payment_method: DF.Data | None
+		payment_method: DF.Data | None
 		payment_status: DF.Literal["Unpaid", "Paid", "Verification Pending"]
 		status: DF.Literal["Confirmed", "Approval Pending", "Approved", "Rejected"]
 		tax_amount: DF.Currency
+		tax_id: DF.Data | None
 		tax_label: DF.Data | None
 		tax_percentage: DF.Percent
 		total_amount: DF.Currency

dashboard/components.d.ts

@@ -12,6 +12,7 @@ declare module 'vue' {
     AttendeeFormControl: typeof import('./src/components/AttendeeFormControl.vue')['default']
     BackButton: typeof import('./src/components/common/BackButton.vue')['default']
     BaseCustomEventForm: typeof import('./src/components/BaseCustomEventForm.vue')['default']
+    BillingDetails: typeof import('./src/components/BillingDetails.vue')['default']
     BookingEventInfo: typeof import('./src/components/BookingEventInfo.vue')['default']
     BookingFinancialSummary: typeof import('./src/components/BookingFinancialSummary.vue')['default']
     BookingForm: typeof import('./src/components/BookingForm.vue')['default']

dashboard/src/components/BillingDetails.vue

@@ -0,0 +1,67 @@
+<template>
+	<div
+		class="bg-surface-white border border-outline-gray-3 rounded-xl p-4 md:p-6 mb-6 shadow-sm"
+	>
+		<h3 class="text-base font-medium text-ink-gray-8 border-b pb-2 mb-4">
+			{{ __("Billing Details") }}
+		</h3>
+		<div class="flex flex-col gap-4">
+			<FormControl
+				type="checkbox"
+				:model-value="invoiceRequested"
+				@update:model-value="$emit('update:invoiceRequested', $event)"
+				:label="__('Do you need an invoice?')"
+			/>
+			<template v-if="invoiceRequested">
+				<FormControl
+					:model-value="taxId"
+					@update:model-value="$emit('update:taxId', $event)"
+					type="text"
+					:label="taxIdLabel"
+					:placeholder="__('Enter {0}', [taxIdLabel])"
+				/>
+				<div class="space-y-1.5">
+					<label class="text-xs text-ink-gray-5 block">
+						{{ __("Billing Address") }}
+						<span class="text-ink-red-4">*</span>
+					</label>
+					<Textarea
+						:model-value="billingAddress"
+						@update:model-value="$emit('update:billingAddress', $event)"
+						:placeholder="__('Enter billing address')"
+						:required="true"
+						variant="outline"
+					/>
+				</div>
+			</template>
+		</div>
+	</div>
+</template>
+
+<script setup>
+import { computed } from "vue";
+import { FormControl, Textarea } from "frappe-ui";
+
+const props = defineProps({
+	invoiceRequested: {
+		type: Boolean,
+		default: false,
+	},
+	taxId: {
+		type: String,
+		default: "",
+	},
+	billingAddress: {
+		type: String,
+		default: "",
+	},
+	taxLabel: {
+		type: String,
+		default: "Tax",
+	},
+});
+
+defineEmits(["update:invoiceRequested", "update:taxId", "update:billingAddress"]);
+
+const taxIdLabel = computed(() => __(props.taxLabel));
+</script>

dashboard/src/components/BookingForm.vue

@@ -171,6 +171,14 @@
 						/>
 					</div>
 
+					<BillingDetails
+						v-if="shouldApplyTax"
+						v-model:invoice-requested="invoiceRequested"
+						v-model:tax-id="taxId"
+						v-model:billing-address="billingAddress"
+						:tax-label="taxLabel"
+					/>
+
 					<AttendeeFormControl
 						v-for="(attendee, index) in attendees"
 						:key="attendee.id"
@@ -401,6 +409,7 @@ import { useLoginDialog } from "@/composables/useLoginDialog";
 import { userResource } from "@/data/user";
 import { formatCurrency, formatPriceOrFree } from "@/utils/currency";
 import { clearBookingCache } from "@/utils/index";
+import BillingDetails from "@/components/BillingDetails.vue";
 import { FormControl, createResource, toast } from "frappe-ui";
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from "vue";
 import { useRoute, useRouter } from "vue-router";
@@ -488,6 +497,9 @@ const {
 	guestLastName,
 	guestEmail,
 	guestPhone,
+	invoiceRequested,
+	taxId,
+	billingAddress,
 } = useBookingFormStorage(props.eventRoute);
 
 const guestFullName = computed(() => `${guestFirstName.value} ${guestLastName.value}`.trim());
@@ -1170,6 +1182,9 @@ async function submit() {
 		guest_email: props.isGuestMode ? guestEmail.value.trim() : null,
 		guest_full_name: props.isGuestMode ? guestFullName.value.trim() : null,
 		guest_phone: props.isGuestMode && isPhoneOtp.value ? guestPhone.value.trim() : null,
+		invoice_requested: invoiceRequested.value,
+		tax_id: invoiceRequested.value ? taxId.value?.trim() : null,
+		billing_address: invoiceRequested.value ? billingAddress.value?.trim() : null,
 	};
 
 	if (props.isGuestMode) {

dashboard/src/composables/useBookingFormStorage.ts

@@ -26,6 +26,10 @@ export function useBookingFormStorage(eventRoute: string) {
 	const guestEmail = useStorage(`${storageKeyPrefix}-guest-email`, "")
 	const guestPhone = useStorage(`${storageKeyPrefix}-guest-phone`, "")
 
+	const invoiceRequested = useStorage(`${storageKeyPrefix}-invoice-requested`, false)
+	const taxId = useStorage(`${storageKeyPrefix}-tax-id`, "")
+	const billingAddress = useStorage(`${storageKeyPrefix}-billing-address`, "")
+
 	/**
 	 * Clear all stored booking form data
 	 * This should be called when payment is successful
@@ -38,6 +42,9 @@ export function useBookingFormStorage(eventRoute: string) {
 		guestLastName.value = ""
 		guestEmail.value = ""
 		guestPhone.value = ""
+		invoiceRequested.value = false
+		taxId.value = ""
+		billingAddress.value = ""
 	}
 
 	/**
@@ -58,6 +65,9 @@ export function useBookingFormStorage(eventRoute: string) {
 		guestLastName,
 		guestEmail,
 		guestPhone,
+		invoiceRequested,
+		taxId,
+		billingAddress,
 		clearStoredData,
 		hasStoredData,
 	}