From 122b3efff21cdacfa23ef747277079c52e3ffe85 Mon Sep 17 00:00:00 2001
From: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>
Date: Wed, 6 May 2026 11:10:43 -0300
Subject: [PATCH 1/2] fix: show envelope documents count reliably on validation

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>
---
 .../validation/EnvelopeValidation.vue         | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/components/validation/EnvelopeValidation.vue b/src/components/validation/EnvelopeValidation.vue
index b36758c538..709f35a671 100644
--- a/src/components/validation/EnvelopeValidation.vue
+++ b/src/components/validation/EnvelopeValidation.vue
@@ -29,10 +29,10 @@
 						{{ documentStatus }}
 					</template>
 				</NcListItem>
-				<NcListItem v-if="document.filesCount" class="extra" compact>
+				<NcListItem v-if="envelopeFilesCount !== null" class="extra" compact>
 					<template #name>
 						<strong>{{ t('libresign', 'Number of documents:') }}</strong>
-						{{ document.filesCount }}
+						{{ envelopeFilesCount }}
 					</template>
 				</NcListItem>
 				<NcListItem v-if="document.signedDate" class="extra" compact>
@@ -161,6 +161,13 @@
 <script setup lang="ts">
 import { n, t } from '@nextcloud/l10n'
 import { generateUrl } from '@nextcloud/router'
+import NcActionButton from '@nextcloud/vue/components/NcActionButton'
+import NcAvatar from '@nextcloud/vue/components/NcAvatar'
+import NcButton from '@nextcloud/vue/components/NcButton'
+import NcIconSvgWrapper from '@nextcloud/vue/components/NcIconSvgWrapper'
+import NcListItem from '@nextcloud/vue/components/NcListItem'
+import NcNoteCard from '@nextcloud/vue/components/NcNoteCard'
+import NcRichText from '@nextcloud/vue/components/NcRichText'
 import { computed, ref, watch } from 'vue'
 
 import {
@@ -215,6 +222,15 @@ const fileOpenState = ref<Record<number, boolean>>({})
 const signerOpenState = ref<Record<number, boolean>>({})
 
 const documentStatus = computed(() => getStatusLabel(props.document.status))
+const envelopeFilesCount = computed(() => {
+	if (typeof props.document.filesCount === 'number') {
+		return props.document.filesCount
+	}
+	if (Array.isArray(props.document.files)) {
+		return props.document.files.length
+	}
+	return null
+})
 
 function resetDisclosureState() {
 	fileOpenState.value = {}
@@ -274,6 +290,7 @@ watch(() => props.document, () => {
 defineExpose({
 	isTouchDevice,
 	documentStatus,
+	envelopeFilesCount,
 	isSignerOpen,
 	isFileOpen,
 	getFileStatusText,

From df6812994d1744edb218b1f82e32d4bde92dbd47 Mon Sep 17 00:00:00 2001
From: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>
Date: Wed, 6 May 2026 11:10:54 -0300
Subject: [PATCH 2/2] test: cover envelope validation multi-file regression

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>
---
 ...envelope-validation-multi-file-bug.spec.ts | 213 ++++++++++++++++++
 .../validation/EnvelopeValidation.spec.ts     |  36 +++
 2 files changed, 249 insertions(+)
 create mode 100644 playwright/e2e/envelope-validation-multi-file-bug.spec.ts

diff --git a/playwright/e2e/envelope-validation-multi-file-bug.spec.ts b/playwright/e2e/envelope-validation-multi-file-bug.spec.ts
new file mode 100644
index 0000000000..f4fbb15842
--- /dev/null
+++ b/playwright/e2e/envelope-validation-multi-file-bug.spec.ts
@@ -0,0 +1,213 @@
+/**
+ * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * Bug reproduction: Validation screen doesn't display data correctly for envelopes with 2+ files
+ */
+
+import { expect, test } from '@playwright/test'
+import type { APIRequestContext, Page } from '@playwright/test'
+import { configureOpenSsl, setAppConfig } from '../support/nc-provisioning'
+import { createMailpitClient, extractSignLink, waitForEmailTo } from '../support/mailpit'
+
+type EnvelopeSigningScenario = {
+	envelopeName: string
+	signerEmail: string
+	signerName: string
+}
+
+type OcsEnvelopeChildSigner = {
+	signRequestId?: number
+	email?: string
+	displayName?: string
+}
+
+type OcsEnvelopeChildFile = {
+	id?: number
+	name?: string
+	signers?: OcsEnvelopeChildSigner[]
+}
+
+type OcsEnvelopeResponse = {
+	uuid?: string
+	files?: OcsEnvelopeChildFile[]
+}
+
+function buildSigningScenario(): EnvelopeSigningScenario {
+	return {
+		envelopeName: `Envelope Validation Bug - ${Date.now()}`,
+		signerEmail: 'signer-validation@libresign.coop',
+		signerName: 'Validation Tester',
+	}
+}
+
+async function requestLibreSignApiAsAdmin(
+	request: APIRequestContext,
+	method: 'POST' | 'PATCH',
+	path: string,
+	body: Record<string, unknown>,
+) {
+	const adminUser = process.env.NEXTCLOUD_ADMIN_USER ?? 'admin'
+	const adminPassword = process.env.NEXTCLOUD_ADMIN_PASSWORD ?? 'admin'
+	const auth = 'Basic ' + Buffer.from(`${adminUser}:${adminPassword}`).toString('base64')
+	const response = await request.fetch(`./ocs/v2.php/apps/libresign/api/v1${path}`, {
+		method,
+		headers: {
+			'OCS-ApiRequest': 'true',
+			Accept: 'application/json',
+			Authorization: auth,
+			'Content-Type': 'application/json',
+		},
+		data: JSON.stringify(body),
+		failOnStatusCode: false,
+	})
+
+	if (!response.ok()) {
+		throw new Error(`LibreSign OCS request failed: ${method} ${path} -> ${response.status()} ${await response.text()}`)
+	}
+
+	return response.json() as Promise<{ ocs: { data: OcsEnvelopeResponse } }>
+}
+
+async function enableEnvelopeScenario(request: APIRequestContext) {
+	await configureOpenSsl(request, 'LibreSign Test', {
+		C: 'BR',
+		OU: ['Organization Unit'],
+		ST: 'Rio de Janeiro',
+		O: 'LibreSign',
+		L: 'Rio de Janeiro',
+	})
+
+	await setAppConfig(request, 'libresign', 'envelope_enabled', '1')
+	await setAppConfig(
+		request,
+		'libresign',
+		'identify_methods',
+		JSON.stringify([
+			{ name: 'account', enabled: false, mandatory: false },
+			{ name: 'email', enabled: true, mandatory: true, signatureMethods: { clickToSign: { enabled: true } }, can_create_account: false },
+		]),
+	)
+}
+
+async function createEnvelopeWithMultipleFiles(
+	request: APIRequestContext,
+	scenario: EnvelopeSigningScenario,
+) {
+	const pdfResponse = await request.get('https://raw.githubusercontent.com/LibreSign/libresign/main/tests/php/fixtures/pdfs/small_valid.pdf', {
+		failOnStatusCode: true,
+	})
+	const pdfBase64 = Buffer.from(await pdfResponse.body()).toString('base64')
+
+	const createResponse = await requestLibreSignApiAsAdmin(request, 'POST', '/request-signature', {
+		name: scenario.envelopeName,
+		files: [
+			{ name: 'document-1.pdf', base64: pdfBase64 },
+			{ name: 'document-2.pdf', base64: pdfBase64 },
+		],
+		signers: [{
+			displayName: scenario.signerName,
+			identifyMethods: [{
+				method: 'email',
+				value: scenario.signerEmail,
+				mandatory: 1,
+			}],
+		}],
+	})
+
+	const envelope = createResponse.ocs.data
+
+	if (!envelope.uuid) {
+		throw new Error('Failed to create envelope with multiple files')
+	}
+
+	// Activate the envelope
+	await requestLibreSignApiAsAdmin(request, 'PATCH', '/request-signature', {
+		uuid: envelope.uuid,
+		status: 1,
+	})
+
+	return envelope
+}
+
+async function waitForSignerInvitationLink(signerEmail: string) {
+	const email = await waitForEmailTo(
+		createMailpitClient(),
+		signerEmail,
+		'LibreSign: There is a file for you to sign',
+	)
+	const signLink = extractSignLink(email.Text)
+	if (!signLink) {
+		throw new Error('Sign link not found in email')
+	}
+	return signLink
+}
+
+async function openInvitationAsExternalSigner(page: Page, signLink: string) {
+	// API setup runs as admin. Clear cookies so the browser behaves like the real external signer.
+	await page.context().clearCookies()
+	await page.goto(signLink)
+}
+
+async function defineClickToSignature(page: Page) {
+	// Wait for click-to-sign button
+	await expect(page.getByRole('button', { name: 'Sign the document.' })).toBeVisible({ timeout: 5_000 })
+}
+
+async function finishSigning(page: Page) {
+	const signButton = page.getByRole('button', { name: 'Sign the document.' })
+	await signButton.scrollIntoViewIfNeeded()
+	await signButton.click()
+	await page.getByRole('button', { name: 'Sign document' }).click()
+}
+
+test('validation screen should display all data correctly for envelope with 2 files', async ({ page }) => {
+	const scenario = buildSigningScenario()
+	const mailpit = createMailpitClient()
+
+	await test.step('Given the system is configured to allow envelope signing via e-mail', async () => {
+		await enableEnvelopeScenario(page.request)
+	})
+
+	await test.step('And an envelope with two files is created', async () => {
+		await mailpit.deleteMessages()
+		await createEnvelopeWithMultipleFiles(page.request, scenario)
+	})
+
+	await test.step('When the external signer opens the invitation link', async () => {
+		const signLink = await waitForSignerInvitationLink(scenario.signerEmail)
+		await openInvitationAsExternalSigner(page, signLink)
+	})
+
+	await test.step('And completes the signing process with click-to-sign', async () => {
+		await defineClickToSignature(page)
+		await finishSigning(page)
+	})
+
+	await test.step('Then the validation screen should display the envelope information correctly', async () => {
+		// Wait for validation page to load
+		await page.waitForURL('**/validation/**')
+
+		// Verify envelope information section is visible
+		await expect(page.getByText('Envelope information')).toBeVisible()
+
+		// Verify envelope name is displayed
+		const envelopeName = page.locator('h2.app-sidebar-header__mainname')
+		await expect(envelopeName).toHaveText(scenario.envelopeName)
+
+		// Verify documents in envelope section exists
+		await expect(page.getByText('Documents in this envelope')).toBeVisible()
+
+		await expect(page.getByText('Number of documents:')).toBeVisible()
+
+		// Get the documents list
+		const documentsList = page.locator('ul.documents-list li.document-item')
+		const documentsCount = await documentsList.count()
+
+		console.log(`Found ${documentsCount} documents in the list`)
+		expect(documentsCount).toBe(2)
+
+		// Success message should be visible
+		await expect(page.getByText('Congratulations you have digitally signed a document using LibreSign')).toBeVisible()
+	})
+})
diff --git a/src/tests/components/validation/EnvelopeValidation.spec.ts b/src/tests/components/validation/EnvelopeValidation.spec.ts
index 292d0819ce..c2acb6feef 100644
--- a/src/tests/components/validation/EnvelopeValidation.spec.ts
+++ b/src/tests/components/validation/EnvelopeValidation.spec.ts
@@ -54,6 +54,7 @@ type ViewerModule = typeof import('../../../utils/viewer.js')
 type EnvelopeValidationVm = {
 	isTouchDevice: boolean
 	documentStatus: string
+	envelopeFilesCount: number | null
 	$nextTick: () => Promise<void>
 	toggleDetail: (signerIndex: number) => void
 	toggleFileDetail: (fileIndex: number) => void
@@ -386,6 +387,41 @@ describe('EnvelopeValidation', () => {
 		})
 	})
 
+	describe('RULE: envelopeFilesCount shows robust documents count', () => {
+		it('keeps 0 as a valid count instead of hiding it', async () => {
+			wrapper = createWrapper({
+				document: {
+					filesCount: 0,
+					files: [],
+				},
+			})
+
+			await wrapper.vm.$nextTick()
+
+			expect(wrapper.vm.envelopeFilesCount).toBe(0)
+			expect(wrapper.text()).toContain('Number of documents:')
+			expect(wrapper.text()).toContain('0')
+		})
+
+		it('falls back to files length when filesCount is missing', async () => {
+			wrapper = createWrapper({
+				document: {
+					filesCount: undefined as unknown as number,
+					files: [
+						{ id: 1, status: '3', name: 'first.pdf' },
+						{ id: 2, status: '1', name: 'second.pdf' },
+					],
+				},
+			})
+
+			await wrapper.vm.$nextTick()
+
+			expect(wrapper.vm.envelopeFilesCount).toBe(2)
+			expect(wrapper.text()).toContain('Number of documents:')
+			expect(wrapper.text()).toContain('2')
+		})
+	})
+
 	describe('RULE: created lifecycle initializes local UI state', () => {
 		it('starts file details collapsed on created', () => {
 			const files: EnvelopeFile[] = [{ id: 1, status: '3' }]