feat(events): promo codes editor in the create/edit event dialog

Collapsible "Promo codes" section: rows of code (upper-cased as typed),
discount %, max uses (blank = unlimited), active switch, remove; per-row
errors from validatePromoRows gate submit alongside the vee-validate form.
extra.promo_codes is always sent explicitly (empty editor = clear); edit
mode prefills from the authenticated record.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ByAwHU4pRnyE58YocQvAas

src/modules/events/components/CreateEventDialog.vue

@@ -26,7 +26,7 @@ import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
 import { Switch } from '@/components/ui/switch'
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from '@/components/ui/collapsible'
-import { Bell, ChevronDown } from 'lucide-vue-next'
+import { Bell, ChevronDown, Tag } from 'lucide-vue-next'
 import { ScrollArea } from '@/components/ui/scroll-area'
 import {
   Select,
@@ -55,6 +55,14 @@ import type { ImageUploadService, UploadedImage } from '@/modules/base/services/
 import type { TicketApiService } from '../services/TicketApiService'
 import type { CreateEventRequest, TicketedEvent } from '../types/ticket'
 import { ALL_CATEGORIES } from '../types/category'
+import PromoCodesEditor from './PromoCodesEditor.vue'
+import {
+  fromWirePromoCodes,
+  hasPromoErrors,
+  toWirePromoCodes,
+  validatePromoRows,
+  type PromoCodeRow,
+} from '../lib/promoCodes'
 
 interface Props {
   open: boolean
@@ -252,6 +260,7 @@ function splitDateTime(value: string | null | undefined): { date: string; time:
 // edit-mode population with start-date side effects mid-setValues.
 const isPopulating = ref(false)
 const notificationsOpen = ref(false)
+const promoOpen = ref(false)
 
 // Auto-mirror end date to start: when the user picks a start date,
 // surface that same date in the end-date picker so a one-day event
@@ -277,6 +286,10 @@ const imageService = injectService<ImageUploadService>(SERVICE_TOKENS.IMAGE_UPLO
 const availableCurrencies = ref<string[]>(['sat'])
 const loadingCurrencies = ref(false)
 const selectedCategories = ref<string[]>([])
+// Promo codes live outside vee-validate like categories: a plain list
+// with its own pure validator (`validatePromoRows`), gating submit below.
+const promoRows = ref<PromoCodeRow[]>([])
+const promoErrors = computed(() => validatePromoRows(promoRows.value))
 
 async function populateFromEvent(event: TicketedEvent) {
   isPopulating.value = true
@@ -301,6 +314,10 @@ async function populateFromEvent(event: TicketedEvent) {
     notification_body: event.extra?.notification_body ?? '',
   })
   selectedCategories.value = [...(event.categories ?? [])]
+  // Codes come only on the organizer-authenticated record (public
+  // responses omit them) — useMyEvents / EventDetailPage hand us that one.
+  promoRows.value = fromWirePromoCodes(event.extra?.promo_codes)
+  promoOpen.value = promoRows.value.length > 0
   if (event.banner) {
     // Re-render the stored banner via its pict-rs file ID. delete_token
     // is intentionally empty: we don't own the original upload's token
@@ -339,11 +356,13 @@ watch(() => props.open, async (isOpen) => {
     }
   } else {
     selectedCategories.value = []
+    promoRows.value = []
+    promoOpen.value = false
   }
 })
 
 const { resetForm, meta } = form
-const isFormValid = computed(() => meta.value.valid)
+const isFormValid = computed(() => meta.value.valid && !hasPromoErrors(promoErrors.value))
 const isLoading = ref(false)
 
 const today = computed(() => format(new Date(), 'yyyy-MM-dd'))
@@ -414,10 +433,11 @@ const onSubmit = form.handleSubmit(async (formValues) => {
     if (formValues.price_per_ticket) eventData.price_per_ticket = formValues.price_per_ticket
     if (selectedCategories.value.length > 0) eventData.categories = selectedCategories.value
 
-    // Notification config goes inside the `extra` envelope. On edit
-    // overlay onto the existing event.extra so unrelated fields the
-    // LNbits admin UI sets (promo_codes, conditional, min_tickets)
-    // survive the round-trip.
+    // Notification config + promo codes go inside the `extra` envelope.
+    // On edit overlay onto the existing event.extra so fields only the
+    // LNbits admin UI sets (conditional, min_tickets) survive the
+    // round-trip. promo_codes is always sent explicitly: what the
+    // organizer sees in the editor is the truth, an empty list clears.
     eventData.extra = {
       ...(props.event?.extra ?? {}),
       payment_methods: formValues.payment_methods,
@@ -425,6 +445,7 @@ const onSubmit = form.handleSubmit(async (formValues) => {
       nostr_notifications: formValues.nostr_notifications,
       notification_subject: formValues.notification_subject,
       notification_body: formValues.notification_body,
+      promo_codes: toWirePromoCodes(promoRows.value),
     }
 
     if (isEditMode.value) {
@@ -455,6 +476,7 @@ const onSubmit = form.handleSubmit(async (formValues) => {
 
     resetForm()
     selectedCategories.value = []
+    promoRows.value = []
     bannerImages.value = []
     emit('update:open', false)
   } catch (error) {
@@ -474,6 +496,7 @@ const handleOpenChange = (open: boolean) => {
   if (!open && !isLoading.value) {
     resetForm()
     selectedCategories.value = []
+    promoRows.value = []
     bannerImages.value = []
   }
   emit('update:open', open)
@@ -854,6 +877,27 @@ const handleOpenChange = (open: boolean) => {
             </CollapsibleContent>
           </Collapsible>
 
+          <!-- Promo codes (collapsible). Percent discounts with an
+               optional redemption cap; the backend hides the list from
+               public responses and enforces active/max_uses at purchase. -->
+          <Collapsible v-model:open="promoOpen">
+            <CollapsibleTrigger as-child>
+              <Button type="button" variant="ghost" size="sm" class="w-full justify-between text-muted-foreground">
+                <span class="flex items-center gap-1.5">
+                  <Tag class="w-4 h-4" />
+                  {{ t('events.create.promo.title') }}
+                  <Badge v-if="promoRows.length > 0" variant="secondary" class="text-[10px] px-1.5">
+                    {{ promoRows.length }}
+                  </Badge>
+                </span>
+                <ChevronDown class="w-4 h-4 transition-transform" :class="{ 'rotate-180': promoOpen }" />
+              </Button>
+            </CollapsibleTrigger>
+            <CollapsibleContent class="pt-2">
+              <PromoCodesEditor v-model="promoRows" :disabled="isLoading" />
+            </CollapsibleContent>
+          </Collapsible>
+
           <!-- Actions. Stack full-width on narrow viewports so a wide
                localized "Submit Event" label can't push the Cancel
                button out of the dialog. Submit reads top-down on

src/modules/events/components/PromoCodesEditor.vue

@@ -0,0 +1,153 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { Button } from '@/components/ui/button'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Switch } from '@/components/ui/switch'
+import { Plus, Trash2 } from 'lucide-vue-next'
+import { normalizePromoCode, validatePromoRows, type PromoCodeRow } from '../lib/promoCodes'
+
+/**
+ * Organizer-side promo code editor: one row per code with percentage,
+ * optional redemption cap and an active switch. Plain `v-model` over a
+ * `PromoCodeRow[]` (the parent keeps it as a ref next to its vee-validate
+ * form, the same way categories are handled); validation is the pure
+ * `validatePromoRows` so the parent can gate submit on the same rules.
+ */
+const props = defineProps<{
+  modelValue: PromoCodeRow[]
+  disabled?: boolean
+}>()
+const emit = defineEmits<{ 'update:modelValue': [rows: PromoCodeRow[]] }>()
+const { t } = useI18n()
+
+const errors = computed(() => validatePromoRows(props.modelValue))
+
+function update(index: number, patch: Partial<PromoCodeRow>) {
+  emit(
+    'update:modelValue',
+    props.modelValue.map((row, i) => (i === index ? { ...row, ...patch } : row)),
+  )
+}
+
+function add() {
+  emit('update:modelValue', [
+    ...props.modelValue,
+    { code: '', discount_percent: null, max_uses: null, active: true },
+  ])
+}
+
+function remove(index: number) {
+  emit('update:modelValue', props.modelValue.filter((_, i) => i !== index))
+}
+
+/** Empty input → null (so "unset" never becomes 0); otherwise a number. */
+function toNumberOrNull(value: string | number): number | null {
+  const str = String(value).trim()
+  if (str === '') return null
+  const n = Number(str)
+  return Number.isFinite(n) ? n : null
+}
+</script>
+
+<template>
+  <div class="space-y-3">
+    <p class="text-xs text-muted-foreground">{{ t('events.create.promo.hint') }}</p>
+
+    <p v-if="modelValue.length === 0" class="text-sm text-muted-foreground">
+      {{ t('events.create.promo.empty') }}
+    </p>
+
+    <div
+      v-for="(row, index) in modelValue"
+      :key="index"
+      class="rounded-md border border-border p-3 space-y-2"
+    >
+      <div class="grid grid-cols-[minmax(0,1fr)_5.5rem_5.5rem] gap-2">
+        <div class="space-y-1">
+          <Label :for="`promo-code-${index}`" class="text-xs">{{ t('events.create.promo.code') }}</Label>
+          <Input
+            :id="`promo-code-${index}`"
+            :model-value="row.code"
+            :placeholder="t('events.create.promo.codePlaceholder')"
+            class="font-mono uppercase"
+            autocapitalize="characters"
+            autocomplete="off"
+            spellcheck="false"
+            :disabled="disabled"
+            @update:model-value="update(index, { code: normalizePromoCode(String($event)) })"
+          />
+          <p v-if="errors[index]?.code" class="text-xs text-destructive">
+            {{ t(errors[index].code!) }}
+          </p>
+        </div>
+        <div class="space-y-1">
+          <Label :for="`promo-pct-${index}`" class="text-xs">{{ t('events.create.promo.discount') }}</Label>
+          <Input
+            :id="`promo-pct-${index}`"
+            type="number"
+            inputmode="numeric"
+            min="1"
+            max="100"
+            step="1"
+            :model-value="row.discount_percent ?? ''"
+            :disabled="disabled"
+            @update:model-value="update(index, { discount_percent: toNumberOrNull($event) })"
+          />
+          <p v-if="errors[index]?.discount_percent" class="text-xs text-destructive">
+            {{ t(errors[index].discount_percent!) }}
+          </p>
+        </div>
+        <div class="space-y-1">
+          <Label :for="`promo-max-${index}`" class="text-xs">{{ t('events.create.promo.maxUses') }}</Label>
+          <Input
+            :id="`promo-max-${index}`"
+            type="number"
+            inputmode="numeric"
+            min="1"
+            step="1"
+            placeholder="∞"
+            :model-value="row.max_uses ?? ''"
+            :disabled="disabled"
+            @update:model-value="update(index, { max_uses: toNumberOrNull($event) })"
+          />
+          <p v-if="errors[index]?.max_uses" class="text-xs text-destructive">
+            {{ t(errors[index].max_uses!) }}
+          </p>
+        </div>
+      </div>
+
+      <div class="flex items-center justify-between gap-2">
+        <div class="flex items-center gap-2">
+          <Switch
+            :id="`promo-active-${index}`"
+            :model-value="row.active"
+            :disabled="disabled"
+            @update:model-value="update(index, { active: Boolean($event) })"
+          />
+          <Label :for="`promo-active-${index}`" class="text-xs">{{ t('events.create.promo.active') }}</Label>
+          <span v-if="(row.used_count ?? 0) > 0" class="text-xs text-muted-foreground">
+            · {{ t('events.create.promo.used', { count: row.used_count }) }}
+          </span>
+        </div>
+        <Button
+          type="button"
+          variant="ghost"
+          size="icon"
+          class="h-8 w-8 text-muted-foreground hover:text-destructive"
+          :disabled="disabled"
+          :aria-label="t('events.create.promo.removeLabel', { code: row.code || '…' })"
+          @click="remove(index)"
+        >
+          <Trash2 class="w-4 h-4" />
+        </Button>
+      </div>
+    </div>
+
+    <Button type="button" variant="outline" size="sm" class="gap-1.5" :disabled="disabled" @click="add">
+      <Plus class="w-4 h-4" />
+      {{ t('events.create.promo.add') }}
+    </Button>
+  </div>
+</template>