From ee07d592870c06a1eb4114a314c5baf087dbc56b Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Wed, 5 Aug 2026 10:09:23 +0100
Subject: [PATCH 1/7] Stash for context switch

---
 .../plugins/engine/i18n/translations/cy.json  |  6 ++++
 .../engine/i18n/translations/en-GB.json       |  6 ++++
 .../engine/models/unavailable-view-model.ts   | 29 ++++++++++++++++---
 .../plugins/engine/unavailable-response.ts    |  6 +++-
 .../plugins/engine/views/unavailable.html     |  4 +--
 5 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/src/server/plugins/engine/i18n/translations/cy.json b/src/server/plugins/engine/i18n/translations/cy.json
index d518b5151..c0f8b1830 100644
--- a/src/server/plugins/engine/i18n/translations/cy.json
+++ b/src/server/plugins/engine/i18n/translations/cy.json
@@ -155,6 +155,12 @@
       "bannerForce": "Rhagolwg o ffurflen [[previewMode]] yw hon. Peidiwch â rhoi gwybodaeth bersonol.",
       "bannerText": "Dyma ragolwg o dudalen ffurflen [[previewMode]] rydych chi'n ei golygu.",
       "previousPages": "Mae'n dibynnu ar atebion o dudalennau cynharach yn y ffurflen. Yn y fersiwn fyw, bydd angen i ddefnyddwyr gwblhau'r cwestiynau hynny yn gyntaf."
+    },
+
+    "formUnavailable": {
+      "title": "Mae'n ddrwg gennyf, nid yw'r ffurflen hon ar gael",
+      "subHeading": "Nid yw '[[formTitle]]' ar gael mwyach.",
+      "contactDetailsHeading": "Manylion cyswllt ar gyfer [[organisationName]]"
     }
   },
 
diff --git a/src/server/plugins/engine/i18n/translations/en-GB.json b/src/server/plugins/engine/i18n/translations/en-GB.json
index 1615ae794..101b88450 100644
--- a/src/server/plugins/engine/i18n/translations/en-GB.json
+++ b/src/server/plugins/engine/i18n/translations/en-GB.json
@@ -139,6 +139,12 @@
       "bannerForce": "This is a preview of a [[previewMode]] form. Do not enter personal information.",
       "bannerText": "This is a preview of a [[previewMode]] form page you are editing.",
       "previousPages": "It depends on answers from earlier pages in the form. In the live version, users will need to complete those questions first."
+    },
+
+    "formUnavailable": {
+      "title": "Sorry, this form is unavailable",
+      "subHeading": "'[[formTitle]]' is no longer available.",
+      "contactDetailsHeading": "Contact details for [[organisationName]]"
     }
   },
 
diff --git a/src/server/plugins/engine/models/unavailable-view-model.ts b/src/server/plugins/engine/models/unavailable-view-model.ts
index f69d477b9..6d68d8a77 100644
--- a/src/server/plugins/engine/models/unavailable-view-model.ts
+++ b/src/server/plugins/engine/models/unavailable-view-model.ts
@@ -1,19 +1,40 @@
-import { type FormMetadata, type FormMetadataContact } from '@defra/forms-model'
+import {
+  type FormDefinition,
+  type FormMetadata,
+  type FormMetadataContact
+} from '@defra/forms-model'
+
+import { t } from '~/src/server/plugins/engine/i18n/index.js'
+import { getAvailableLanguages } from '~/src/server/plugins/engine/i18n/languages.js'
 
 export interface UnavailableViewModel {
   pageTitle: string
   formTitle: string
   organisationName: string
   contact?: FormMetadataContact
+  t: (
+    key: string,
+    language: string,
+    options?: Record<string, unknown>
+  ) => string
+  language: string
+  languages: { code: string; name: string }[]
 }
 
 export function unavailableViewModel(
-  metadata: FormMetadata
+  metadata: FormMetadata,
+  language: string
 ): UnavailableViewModel {
   return {
-    pageTitle: 'Sorry, this form is unavailable',
+    pageTitle: t('pages.formUnavailable.title', language),
     formTitle: metadata.title,
     organisationName: metadata.organisation,
-    contact: metadata.contact
+    contact: metadata.contact,
+    t,
+    language,
+    // Always get Welsh and English
+    languages: getAvailableLanguages({
+      metadata: { translations: { cy: {} } }
+    } as unknown as FormDefinition)
   }
 }
diff --git a/src/server/plugins/engine/unavailable-response.ts b/src/server/plugins/engine/unavailable-response.ts
index 768924b79..d4b59eacc 100644
--- a/src/server/plugins/engine/unavailable-response.ts
+++ b/src/server/plugins/engine/unavailable-response.ts
@@ -2,6 +2,8 @@ import { type Request, type ResponseToolkit, type Server } from '@hapi/hapi'
 
 import { isOfflineBoom } from '~/src/server/plugins/engine/form-availability.js'
 import { unavailableViewModel } from '~/src/server/plugins/engine/models/unavailable-view-model.js'
+import { type AnyFormRequest } from '~/src/server/plugins/engine/types.js'
+import { resolveLanguage } from '~/src/server/utils/utils.js'
 
 /**
  * Registers a server-wide onPreResponse extension that intercepts the offline
@@ -19,8 +21,10 @@ export function registerUnavailableResponse(server: Server) {
 
     const { metadata } = response.data
 
+    const language = resolveLanguage(request as unknown as AnyFormRequest)
+
     return h
-      .view('unavailable', unavailableViewModel(metadata))
+      .view('unavailable', unavailableViewModel(metadata, language))
       .header('Cache-Control', 'no-store, no-cache, must-revalidate')
       .header('X-Robots-Tag', 'noindex, nofollow')
       .code(200)
diff --git a/src/server/plugins/engine/views/unavailable.html b/src/server/plugins/engine/views/unavailable.html
index 6d61a5ff8..b0d512bcf 100644
--- a/src/server/plugins/engine/views/unavailable.html
+++ b/src/server/plugins/engine/views/unavailable.html
@@ -3,9 +3,7 @@
 {% block content %}
   <div class="govuk-grid-row">
     <div class="govuk-grid-column-two-thirds">
-      <h1 class="govuk-heading-l">Sorry, this form is unavailable</h1>
-      <p class="govuk-body">'{{ formTitle }}' is no longer available.</p>
-      <h2 class="govuk-heading-m">Contact details for {{ organisationName }}</h2>
+      <h1 class="govuk-heading-l">{{ t('pages.formUnavailable.title', language) }}</h1>
 
       {% if contact.phone %}
         <h3 class="govuk-heading-s">Telephone</h3>

From 2f6831aca602e9e266063b94ff1a3515336bc14a Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Wed, 5 Aug 2026 11:01:30 +0100
Subject: [PATCH 2/7] Stash for context switch2

---
 src/server/plugins/engine/form-availability.ts             | 6 ++++--
 src/server/plugins/engine/form-context.ts                  | 6 ++++--
 src/server/plugins/engine/models/unavailable-view-model.ts | 4 ++++
 src/server/plugins/engine/unavailable-response.ts          | 4 ++--
 4 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/server/plugins/engine/form-availability.ts b/src/server/plugins/engine/form-availability.ts
index de140534e..6bcb1f67a 100644
--- a/src/server/plugins/engine/form-availability.ts
+++ b/src/server/plugins/engine/form-availability.ts
@@ -1,9 +1,10 @@
-import { FormStatus, type FormMetadata } from '@defra/forms-model'
+import { FormStatus, type FormDefinition, type FormMetadata } from '@defra/forms-model'
 import Boom from '@hapi/boom'
 
 export interface OfflineBoomData {
   offline: true
   metadata: FormMetadata
+  definition: FormDefinition | undefined
 }
 
 /**
@@ -13,6 +14,7 @@ export interface OfflineBoomData {
  */
 export function assertFormAvailable(
   metadata: FormMetadata,
+  definition: FormDefinition | undefined,
   formState: FormStatus,
   isPreview: boolean
 ): void {
@@ -21,7 +23,7 @@ export function assertFormAvailable(
     formState === FormStatus.Live &&
     !isPreview
   ) {
-    const data: OfflineBoomData = { offline: true, metadata }
+    const data: OfflineBoomData = { offline: true, metadata, definition }
     throw Boom.boomify(new Error(`Form ${metadata.slug} is offline`), {
       statusCode: 503,
       data
diff --git a/src/server/plugins/engine/form-context.ts b/src/server/plugins/engine/form-context.ts
index 304cf252d..5af70f920 100644
--- a/src/server/plugins/engine/form-context.ts
+++ b/src/server/plugins/engine/form-context.ts
@@ -56,13 +56,14 @@ export async function getFormModel(
   const formState = resolveState(state)
 
   const metadata = await formsService.getFormMetadata(slug)
-  assertFormAvailable(metadata, formState, isPreview)
 
   const definition = await formsService.getFormDefinition(
     metadata.id,
     formState
   )
 
+  assertFormAvailable(metadata, definition, formState, isPreview)
+
   if (!definition) {
     throw Boom.notFound(
       `No definition found for form metadata ${metadata.id} (${slug}) ${state}`
@@ -145,7 +146,6 @@ export async function resolveFormModel(
   const metadata = await formsService.getFormMetadata(slug)
   const formState = resolveState(state)
   const isPreview = options.isPreview ?? isPreviewState(state, options)
-  assertFormAvailable(metadata, formState, isPreview)
   const stateMetadata = metadata[formState]
 
   if (!stateMetadata) {
@@ -199,6 +199,8 @@ export async function resolveFormModel(
     cache.set(cacheKey, entry)
   }
 
+  assertFormAvailable(metadata, entry.model.def, formState, isPreview)
+
   return entry.model
 }
 
diff --git a/src/server/plugins/engine/models/unavailable-view-model.ts b/src/server/plugins/engine/models/unavailable-view-model.ts
index 6d68d8a77..d3c3b7ecb 100644
--- a/src/server/plugins/engine/models/unavailable-view-model.ts
+++ b/src/server/plugins/engine/models/unavailable-view-model.ts
@@ -23,8 +23,12 @@ export interface UnavailableViewModel {
 
 export function unavailableViewModel(
   metadata: FormMetadata,
+  definition: FormDefinition | undefined,
   language: string
 ): UnavailableViewModel {
+  const formTranslations = definition
+    ? definition.metadata.translations[language]
+    : {}
   return {
     pageTitle: t('pages.formUnavailable.title', language),
     formTitle: metadata.title,
diff --git a/src/server/plugins/engine/unavailable-response.ts b/src/server/plugins/engine/unavailable-response.ts
index d4b59eacc..5e9fd57a3 100644
--- a/src/server/plugins/engine/unavailable-response.ts
+++ b/src/server/plugins/engine/unavailable-response.ts
@@ -19,12 +19,12 @@ export function registerUnavailableResponse(server: Server) {
       return h.continue
     }
 
-    const { metadata } = response.data
+    const { metadata, definition } = response.data
 
     const language = resolveLanguage(request as unknown as AnyFormRequest)
 
     return h
-      .view('unavailable', unavailableViewModel(metadata, language))
+      .view('unavailable', unavailableViewModel(metadata, definition, language))
       .header('Cache-Control', 'no-store, no-cache, must-revalidate')
       .header('X-Robots-Tag', 'noindex, nofollow')
       .code(200)

From 5ebf1e5b70f6103408e459eb5e0d9ce0e3e21d01 Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Wed, 5 Aug 2026 12:46:31 +0100
Subject: [PATCH 3/7] Stash for rebase

---
 .../plugins/engine/i18n/translations/cy.json  |  6 ++++-
 .../engine/i18n/translations/en-GB.json       |  6 ++++-
 .../engine/models/unavailable-view-model.ts   | 23 +++++++++----------
 .../FileUploadPageController.ts               |  1 +
 .../plugins/engine/views/unavailable.html     |  4 +++-
 5 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/src/server/plugins/engine/i18n/translations/cy.json b/src/server/plugins/engine/i18n/translations/cy.json
index 7c47fbdcf..b4f38d9de 100644
--- a/src/server/plugins/engine/i18n/translations/cy.json
+++ b/src/server/plugins/engine/i18n/translations/cy.json
@@ -160,7 +160,11 @@
     "formUnavailable": {
       "title": "Mae'n ddrwg gennyf, nid yw'r ffurflen hon ar gael",
       "subHeading": "Nid yw '[[formTitle]]' ar gael mwyach.",
-      "contactDetailsHeading": "Manylion cyswllt ar gyfer [[organisationName]]"
+      "contactDetailsHeading": "Manylion cyswllt ar gyfer [[organisationName]]",
+      "telephone": "Ffôn",
+      "callCharges": "Dysgwch am gostau galwadau",
+      "email": "E-bost",
+      "onlineContactForm": "Ffurflen gyswllt ar-lein"
     }
   },
 
diff --git a/src/server/plugins/engine/i18n/translations/en-GB.json b/src/server/plugins/engine/i18n/translations/en-GB.json
index 625b1efab..3cc300a56 100644
--- a/src/server/plugins/engine/i18n/translations/en-GB.json
+++ b/src/server/plugins/engine/i18n/translations/en-GB.json
@@ -144,7 +144,11 @@
     "formUnavailable": {
       "title": "Sorry, this form is unavailable",
       "subHeading": "'[[formTitle]]' is no longer available.",
-      "contactDetailsHeading": "Contact details for [[organisationName]]"
+      "contactDetailsHeading": "Contact details for [[organisationName]]",
+      "telephone": "Telephone",
+      "callCharges": "Find out about call charges",
+      "email": "Email",
+      "onlineContactForm": "Online contact form"
     }
   },
 
diff --git a/src/server/plugins/engine/models/unavailable-view-model.ts b/src/server/plugins/engine/models/unavailable-view-model.ts
index d3c3b7ecb..893415b28 100644
--- a/src/server/plugins/engine/models/unavailable-view-model.ts
+++ b/src/server/plugins/engine/models/unavailable-view-model.ts
@@ -4,7 +4,7 @@ import {
   type FormMetadataContact
 } from '@defra/forms-model'
 
-import { t } from '~/src/server/plugins/engine/i18n/index.js'
+import { createFormTranslator } from '~/src/server/plugins/engine/i18n/createFormTranslator.js'
 import { getAvailableLanguages } from '~/src/server/plugins/engine/i18n/languages.js'
 
 export interface UnavailableViewModel {
@@ -12,29 +12,28 @@ export interface UnavailableViewModel {
   formTitle: string
   organisationName: string
   contact?: FormMetadataContact
-  t: (
-    key: string,
-    language: string,
-    options?: Record<string, unknown>
-  ) => string
+  t: (key: string, options?: Record<string, unknown>) => string
   language: string
   languages: { code: string; name: string }[]
 }
 
+function getTranslation(t: (key: string, options?: Record<string, unknown>) => string, key: string, fallback: string) {
+
+}
+
 export function unavailableViewModel(
   metadata: FormMetadata,
   definition: FormDefinition | undefined,
   language: string
 ): UnavailableViewModel {
-  const formTranslations = definition
-    ? definition.metadata.translations[language]
-    : {}
+  const translator = createFormTranslator(metadata, definition, language)
+  const { t } = translator
   return {
-    pageTitle: t('pages.formUnavailable.title', language),
-    formTitle: metadata.title,
+    pageTitle: t('pages.formUnavailable.title'),
+    formTitle: t('form.title') ?? metadata.title,
     organisationName: metadata.organisation,
     contact: metadata.contact,
-    t,
+    t: translator.t,
     language,
     // Always get Welsh and English
     languages: getAvailableLanguages({
diff --git a/src/server/plugins/engine/pageControllers/FileUploadPageController.ts b/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
index dc730130e..ed3d98821 100644
--- a/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
+++ b/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
@@ -286,6 +286,7 @@ export class FileUploadPageController extends QuestionPageController {
       uploadingLabel: t('components.fileUploadField.uploading')
     }
 
+    console.log('formComponent.model', formComponent.model)
     const index = components.indexOf(formComponent)
 
     const proxyUrl = getProxyUrlForLocalDevelopment(upload?.uploadUrl)
diff --git a/src/server/plugins/engine/views/unavailable.html b/src/server/plugins/engine/views/unavailable.html
index b0d512bcf..e773ffb42 100644
--- a/src/server/plugins/engine/views/unavailable.html
+++ b/src/server/plugins/engine/views/unavailable.html
@@ -3,7 +3,9 @@
 {% block content %}
   <div class="govuk-grid-row">
     <div class="govuk-grid-column-two-thirds">
-      <h1 class="govuk-heading-l">{{ t('pages.formUnavailable.title', language) }}</h1>
+      <h1 class="govuk-heading-l">{{ t('pages.formUnavailable.title') }}</h1>
+      <p class="govuk-body">{{ t('pages.formUnavailable.subHeading', { formTitle: formTitle }) }}</p>
+      <h2 class="govuk-heading-m">{{ t('pages.formUnavailable.contactDetailsHeading', { organisationName: organisationName }) }}</h2>
 
       {% if contact.phone %}
         <h3 class="govuk-heading-s">Telephone</h3>

From 66abc2371797a43dfa9f65c68b28270aa7d7ea73 Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Wed, 5 Aug 2026 13:41:56 +0100
Subject: [PATCH 4/7] Final translation elements

---
 .../plugins/engine/form-availability.test.ts  |  5 +++
 .../plugins/engine/form-availability.ts       |  6 ++-
 .../models/unavailable-view-model.test.ts     | 33 +++++++++++-----
 .../engine/models/unavailable-view-model.ts   | 13 +++----
 .../FileUploadPageController.ts               |  1 -
 .../engine/unavailable-response.test.ts       | 38 +++++++++++++++----
 .../plugins/engine/views/unavailable.html     | 19 ++++++----
 7 files changed, 79 insertions(+), 36 deletions(-)

diff --git a/src/server/plugins/engine/form-availability.test.ts b/src/server/plugins/engine/form-availability.test.ts
index 341c76275..10f52e2d5 100644
--- a/src/server/plugins/engine/form-availability.test.ts
+++ b/src/server/plugins/engine/form-availability.test.ts
@@ -13,6 +13,7 @@ describe('form-availability', () => {
       expect(() =>
         assertFormAvailable(
           { ...metadata, offline: false },
+          undefined,
           FormStatus.Live,
           false
         )
@@ -20,6 +21,7 @@ describe('form-availability', () => {
       expect(() =>
         assertFormAvailable(
           { ...metadata, offline: undefined },
+          undefined,
           FormStatus.Live,
           false
         )
@@ -30,6 +32,7 @@ describe('form-availability', () => {
       expect(() =>
         assertFormAvailable(
           { ...metadata, offline: false },
+          undefined,
           FormStatus.Draft,
           true
         )
@@ -37,6 +40,7 @@ describe('form-availability', () => {
       expect(() =>
         assertFormAvailable(
           { ...metadata, offline: undefined },
+          undefined,
           FormStatus.Live,
           true
         )
@@ -47,6 +51,7 @@ describe('form-availability', () => {
       expect(() =>
         assertFormAvailable(
           { ...metadata, offline: true },
+          undefined,
           FormStatus.Live,
           false
         )
diff --git a/src/server/plugins/engine/form-availability.ts b/src/server/plugins/engine/form-availability.ts
index 6bcb1f67a..d040fa6ea 100644
--- a/src/server/plugins/engine/form-availability.ts
+++ b/src/server/plugins/engine/form-availability.ts
@@ -1,4 +1,8 @@
-import { FormStatus, type FormDefinition, type FormMetadata } from '@defra/forms-model'
+import {
+  FormStatus,
+  type FormDefinition,
+  type FormMetadata
+} from '@defra/forms-model'
 import Boom from '@hapi/boom'
 
 export interface OfflineBoomData {
diff --git a/src/server/plugins/engine/models/unavailable-view-model.test.ts b/src/server/plugins/engine/models/unavailable-view-model.test.ts
index bc8f2ad80..2f7d9b909 100644
--- a/src/server/plugins/engine/models/unavailable-view-model.test.ts
+++ b/src/server/plugins/engine/models/unavailable-view-model.test.ts
@@ -1,24 +1,37 @@
-import { type FormMetadata } from '@defra/forms-model'
-
+import { CY, EN_GB } from '~/src/server/constants.js'
 import { unavailableViewModel } from '~/src/server/plugins/engine/models/unavailable-view-model.js'
 import { metadata } from '~/test/fixtures/form.js'
 
 describe('unavailableViewModel', () => {
   it('should return the correct view model with basic metadata', () => {
-    const result = unavailableViewModel(metadata)
+    const result = unavailableViewModel(metadata, undefined, EN_GB)
     expect(result).toEqual({
       pageTitle: 'Sorry, this form is unavailable',
       formTitle: 'Test form',
+      language: 'en-GB',
+      languages: [
+        { code: 'en-GB', name: 'English' },
+        { code: 'cy', name: 'Cymraeg' }
+      ],
       organisationName: 'Defra',
-      phoneLines: undefined
+      contact: undefined,
+      context: expect.any(Object)
     })
   })
 
-  it('should strip the organisation suffix if present', () => {
-    const result = unavailableViewModel({
-      ...metadata,
-      organisation: 'Rural Payments Agency - RPA'
-    } as FormMetadata)
-    expect(result.organisationName).toBe('Rural Payments Agency - RPA')
+  it('should handle Welsh', () => {
+    const result = unavailableViewModel(metadata, undefined, CY)
+    expect(result).toEqual({
+      pageTitle: "Mae'n ddrwg gennyf, nid yw'r ffurflen hon ar gael",
+      formTitle: 'Test form',
+      language: 'cy',
+      languages: [
+        { code: 'en-GB', name: 'English' },
+        { code: 'cy', name: 'Cymraeg' }
+      ],
+      organisationName: 'Defra',
+      contact: undefined,
+      context: expect.any(Object)
+    })
   })
 })
diff --git a/src/server/plugins/engine/models/unavailable-view-model.ts b/src/server/plugins/engine/models/unavailable-view-model.ts
index 893415b28..b79643b48 100644
--- a/src/server/plugins/engine/models/unavailable-view-model.ts
+++ b/src/server/plugins/engine/models/unavailable-view-model.ts
@@ -6,34 +6,31 @@ import {
 
 import { createFormTranslator } from '~/src/server/plugins/engine/i18n/createFormTranslator.js'
 import { getAvailableLanguages } from '~/src/server/plugins/engine/i18n/languages.js'
+import { type Translator } from '~/src/server/plugins/engine/types/index.js'
 
 export interface UnavailableViewModel {
   pageTitle: string
   formTitle: string
   organisationName: string
   contact?: FormMetadataContact
-  t: (key: string, options?: Record<string, unknown>) => string
+  context: { translator: Translator }
   language: string
   languages: { code: string; name: string }[]
 }
 
-function getTranslation(t: (key: string, options?: Record<string, unknown>) => string, key: string, fallback: string) {
-
-}
-
 export function unavailableViewModel(
   metadata: FormMetadata,
   definition: FormDefinition | undefined,
   language: string
 ): UnavailableViewModel {
   const translator = createFormTranslator(metadata, definition, language)
-  const { t } = translator
+  const { t, tForm } = translator
   return {
     pageTitle: t('pages.formUnavailable.title'),
-    formTitle: t('form.title') ?? metadata.title,
+    formTitle: tForm('title') || metadata.title,
     organisationName: metadata.organisation,
     contact: metadata.contact,
-    t: translator.t,
+    context: { translator },
     language,
     // Always get Welsh and English
     languages: getAvailableLanguages({
diff --git a/src/server/plugins/engine/pageControllers/FileUploadPageController.ts b/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
index 2c548e605..57db13145 100644
--- a/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
+++ b/src/server/plugins/engine/pageControllers/FileUploadPageController.ts
@@ -294,7 +294,6 @@ export class FileUploadPageController extends QuestionPageController {
       noFileChosenText: t('components.fileUploadField.noFileChosen')
     }
 
-    console.log('formComponent.model', formComponent.model)
     const index = components.indexOf(formComponent)
 
     const proxyUrl = getProxyUrlForLocalDevelopment(upload?.uploadUrl)
diff --git a/src/server/plugins/engine/unavailable-response.test.ts b/src/server/plugins/engine/unavailable-response.test.ts
index d5aca4118..7dc3e116a 100644
--- a/src/server/plugins/engine/unavailable-response.test.ts
+++ b/src/server/plugins/engine/unavailable-response.test.ts
@@ -6,7 +6,9 @@ import {
   type Server
 } from '@hapi/hapi'
 
+import { EN_GB } from '~/src/server/constants.js'
 import * as availability from '~/src/server/plugins/engine/form-availability.js'
+import { type Translator } from '~/src/server/plugins/engine/i18n/types.js'
 import * as viewModel from '~/src/server/plugins/engine/models/unavailable-view-model.js'
 import { registerUnavailableResponse } from '~/src/server/plugins/engine/unavailable-response.js'
 import { metadata } from '~/test/fixtures/form.js'
@@ -56,7 +58,14 @@ describe('registerUnavailableResponse', () => {
       statusCode: 503,
       data: offlineData
     })
-    const mockRequest = { response: mockResponse } as Request
+    const mockRequest = {
+      response: mockResponse,
+      server: {
+        plugins: {
+          'forms-engine-plugin': {}
+        }
+      }
+    } as Request
 
     const mockViewResponse = {
       header: jest.fn().mockReturnThis(),
@@ -75,18 +84,31 @@ describe('registerUnavailableResponse', () => {
       .mockReturnValue({
         pageTitle: 'Unavailable',
         formTitle: 'Test',
-        organisationName: 'Defra'
+        organisationName: 'Defra',
+        language: EN_GB,
+        languages: [
+          { code: 'en-GB', name: 'English' },
+          { code: 'cy', name: 'Cymraeg' }
+        ],
+        context: { translator: {} as unknown as Translator }
       })
 
     const result = await extensionHandler(mockRequest, mockH)
 
     expect(availability.isOfflineBoom).toHaveBeenCalledWith(mockResponse)
-    expect(viewModel.unavailableViewModel).toHaveBeenCalledWith(metadata)
-    expect(mockH.view).toHaveBeenCalledWith('unavailable', {
-      pageTitle: 'Unavailable',
-      formTitle: 'Test',
-      organisationName: 'Defra'
-    })
+    expect(viewModel.unavailableViewModel).toHaveBeenCalledWith(
+      metadata,
+      undefined,
+      'en-GB'
+    )
+    expect(mockH.view).toHaveBeenCalledWith(
+      'unavailable',
+      expect.objectContaining({
+        pageTitle: 'Unavailable',
+        formTitle: 'Test',
+        organisationName: 'Defra'
+      })
+    )
     expect(mockViewResponse.header).toHaveBeenCalledWith(
       'Cache-Control',
       'no-store, no-cache, must-revalidate'
diff --git a/src/server/plugins/engine/views/unavailable.html b/src/server/plugins/engine/views/unavailable.html
index e773ffb42..4ce14a5a6 100644
--- a/src/server/plugins/engine/views/unavailable.html
+++ b/src/server/plugins/engine/views/unavailable.html
@@ -1,5 +1,8 @@
 {% extends baseLayoutPath %}
 
+{% set t = context.translator.t %}
+{% set tForm = context.translator.tForm %}
+
 {% block content %}
   <div class="govuk-grid-row">
     <div class="govuk-grid-column-two-thirds">
@@ -8,25 +11,25 @@ <h1 class="govuk-heading-l">{{ t('pages.formUnavailable.title') }}</h1>
       <h2 class="govuk-heading-m">{{ t('pages.formUnavailable.contactDetailsHeading', { organisationName: organisationName }) }}</h2>
 
       {% if contact.phone %}
-        <h3 class="govuk-heading-s">Telephone</h3>
+        <h3 class="govuk-heading-s">{{ t('pages.formUnavailable.telephone') }}</h3>
         <div class="app-prose-scope">
-          {{ contact.phone | markdown(3) | safe }}
+          {{ tForm('contact.phone') | markdown(3) | safe }}
         </div>
-        <p class="govuk-body"><a href="https://www.gov.uk/call-charges" class="govuk-link govuk-link--no-visited-state">Find out about call charges</a></p>
+        <p class="govuk-body"><a href="https://www.gov.uk/call-charges" class="govuk-link govuk-link--no-visited-state">{{ t('pages.formUnavailable.callCharges') }}</a></p>
       {% endif %}
 
       {% if contact.email %}
-        <h3 class="govuk-heading-s">Email</h3>
+        <h3 class="govuk-heading-s">{{ t('pages.formUnavailable.email') }}</h3>
         <ul class="govuk-list">
-          <li><a class="govuk-link govuk-link--no-visited-state" href="mailto:{{ contact.email.address }}">{{ contact.email.address }}</a></li>
-          <li>{{ contact.email.responseTime }}</li>
+          <li><a class="govuk-link govuk-link--no-visited-state" href="mailto:{{ tForm('contact.email.address') }}">{{ tForm('contact.email.address') }}</a></li>
+          <li>{{ tForm('contact.email.responseTime') }}</li>
         </ul>
       {% endif %}
 
       {% if contact.online %}
-        <h3 class="govuk-heading-s">Online contact form</h3>
+        <h3 class="govuk-heading-s">{{ t('pages.formUnavailable.onlineContactForm') }}</h3>
         <ul class="govuk-list">
-          <li><a class="govuk-link govuk-link--no-visited-state" href="{{ contact.online.url }}">{{ contact.online.text }}</a></li>
+          <li><a class="govuk-link govuk-link--no-visited-state" href="{{ tForm('contact.online.url') }}">{{ tForm('contact.online.text') }}</a></li>
         </ul>
       {% endif %}
     </div>

From 5ff54d1c986bf19c1aea4f2a693322d3995c77bb Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Wed, 5 Aug 2026 16:59:22 +0100
Subject: [PATCH 5/7] Fixes location instructions when no JS

---
 src/server/plugins/engine/components/LocationFieldBase.ts | 4 +++-
 .../plugins/engine/components/LocationFieldHelpers.ts     | 8 +++++++-
 src/server/plugins/engine/i18n/types.ts                   | 1 +
 .../engine/views/components/_location-field-base.html     | 2 +-
 4 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/server/plugins/engine/components/LocationFieldBase.ts b/src/server/plugins/engine/components/LocationFieldBase.ts
index 34a9905a4..22480c3b5 100644
--- a/src/server/plugins/engine/components/LocationFieldBase.ts
+++ b/src/server/plugins/engine/components/LocationFieldBase.ts
@@ -125,9 +125,11 @@ export abstract class LocationFieldBase extends FormComponent {
     const viewModel = super.getViewModel(context)
 
     if (this.instructionText) {
+      const { tComponent } = context.translator
       return {
         ...viewModel,
-        instructionText: this.instructionText
+        instructionText:
+          tComponent(this.def, 'instructionText') || this.instructionText
       }
     }
 
diff --git a/src/server/plugins/engine/components/LocationFieldHelpers.ts b/src/server/plugins/engine/components/LocationFieldHelpers.ts
index 92b1d8de6..14431d9bc 100644
--- a/src/server/plugins/engine/components/LocationFieldHelpers.ts
+++ b/src/server/plugins/engine/components/LocationFieldHelpers.ts
@@ -198,9 +198,15 @@ export function getLocationFieldViewModel(
   }
 
   if (component.options.instructionText) {
+    const { t, tComponent } = context.translator
+
     return {
       ...result,
-      instructionText: component.options.instructionText
+      instructionSummary: t('components.locationFieldBase.howToFind'),
+      instructionText:
+        tComponent(component.def, 'instructionText') ||
+        component.options.instructionText,
+      t
     }
   }
 
diff --git a/src/server/plugins/engine/i18n/types.ts b/src/server/plugins/engine/i18n/types.ts
index f9aaf3cfb..89efed627 100644
--- a/src/server/plugins/engine/i18n/types.ts
+++ b/src/server/plugins/engine/i18n/types.ts
@@ -24,6 +24,7 @@ export type FormDefinitionTranslations = Record<
         shortDescription: string
         errorDescription: string
         paymentDescription: string
+        instructionText: string
       }>
     >
     sections: Record<string, Partial<Pick<Section, 'title'>>>
diff --git a/src/server/plugins/engine/views/components/_location-field-base.html b/src/server/plugins/engine/views/components/_location-field-base.html
index 59c2f040d..cc600194e 100644
--- a/src/server/plugins/engine/views/components/_location-field-base.html
+++ b/src/server/plugins/engine/views/components/_location-field-base.html
@@ -61,7 +61,7 @@
   {% set detailsHtml %}
     {% if component.model.instructionText %}
       {{ govukDetails({
-        summaryText: t('components.locationFieldBase.howToFind'),
+        summaryText: component.model.instructionSummary,
         html: component.model.instructionText | markdown | safe,
         classes: "govuk-!-margin-top-3"
       }) }}

From 479f13d81f56afe54f6aa9526d2b983b41721a22 Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Fri, 7 Aug 2026 13:09:53 +0100
Subject: [PATCH 6/7] Removed unnecessary fallback

---
 src/server/plugins/engine/components/LocationFieldHelpers.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/server/plugins/engine/components/LocationFieldHelpers.ts b/src/server/plugins/engine/components/LocationFieldHelpers.ts
index 14431d9bc..3d66cdf29 100644
--- a/src/server/plugins/engine/components/LocationFieldHelpers.ts
+++ b/src/server/plugins/engine/components/LocationFieldHelpers.ts
@@ -203,9 +203,7 @@ export function getLocationFieldViewModel(
     return {
       ...result,
       instructionSummary: t('components.locationFieldBase.howToFind'),
-      instructionText:
-        tComponent(component.def, 'instructionText') ||
-        component.options.instructionText,
+      instructionText: tComponent(component.def, 'instructionText'),
       t
     }
   }

From bbc3cab35aef5d67f7d9ecf3d4a18e7e2e330027 Mon Sep 17 00:00:00 2001
From: Jez Barnsley <jbarnsley.github@gmail.com>
Date: Fri, 7 Aug 2026 13:28:37 +0100
Subject: [PATCH 7/7] Reinstated fallback

---
 src/server/plugins/engine/components/LocationFieldHelpers.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/server/plugins/engine/components/LocationFieldHelpers.ts b/src/server/plugins/engine/components/LocationFieldHelpers.ts
index 3d66cdf29..14431d9bc 100644
--- a/src/server/plugins/engine/components/LocationFieldHelpers.ts
+++ b/src/server/plugins/engine/components/LocationFieldHelpers.ts
@@ -203,7 +203,9 @@ export function getLocationFieldViewModel(
     return {
       ...result,
       instructionSummary: t('components.locationFieldBase.howToFind'),
-      instructionText: tComponent(component.def, 'instructionText'),
+      instructionText:
+        tComponent(component.def, 'instructionText') ||
+        component.options.instructionText,
       t
     }
   }