From e2d0a20b45b00d4ed6df3660254697771768da35 Mon Sep 17 00:00:00 2001
From: Jalil Arfaoui <jalil@arfaoui.net>
Date: Tue, 17 Feb 2026 00:16:21 +0100
Subject: [PATCH] =?UTF-8?q?feat:=20v=C3=A9rifier=20que=20la=20page=20Wikip?=
 =?UTF-8?q?edia=20existe=20et=20est=20une=20biographie?=
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Appel à l'API MediaWiki pour valider que la page existe et possède la
catégorie « Wikipédia:Article biographique ». Interface WikipediaValidator
dans domain/services (port hexagonal), implémentation dans infra/.
---
 .../create-public-figure-with-statement.ts    |  2 +
 domain/services/wikipedia-validator.ts        |  8 ++++
 infra/wikipedia/wikipedia-validator.ts        | 46 +++++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 domain/services/wikipedia-validator.ts
 create mode 100644 infra/wikipedia/wikipedia-validator.ts

diff --git a/app/actions/create-public-figure-with-statement.ts b/app/actions/create-public-figure-with-statement.ts
index 3d8c056..ba5817a 100644
--- a/app/actions/create-public-figure-with-statement.ts
+++ b/app/actions/create-public-figure-with-statement.ts
@@ -11,6 +11,7 @@ import {
   createPublicFigureWithStatementUseCase,
   FieldErrors,
 } from '../../domain/use-cases/create-public-figure-with-statement'
+import { createWikipediaValidator } from '../../infra/wikipedia/wikipedia-validator'
 import { getAuthenticatedContributor } from './get-authenticated-contributor'
 
 export type ActionResult =
@@ -41,6 +42,7 @@ export async function createPublicFigureWithStatementAction(
     subjectRepo: createSubjectRepository(supabase),
     publicFigureRepo: createPublicFigureRepository(supabase),
     reputationRepo: createReputationRepository(supabase),
+    wikipediaValidator: createWikipediaValidator(),
   })
 
   if (Either.isLeft(result)) {
diff --git a/domain/services/wikipedia-validator.ts b/domain/services/wikipedia-validator.ts
new file mode 100644
index 0000000..580bba9
--- /dev/null
+++ b/domain/services/wikipedia-validator.ts
@@ -0,0 +1,8 @@
+export interface WikipediaValidationResult {
+  exists: boolean
+  isBiography: boolean
+}
+
+export interface WikipediaValidator {
+  validatePage(url: string): Promise<WikipediaValidationResult>
+}
diff --git a/infra/wikipedia/wikipedia-validator.ts b/infra/wikipedia/wikipedia-validator.ts
new file mode 100644
index 0000000..c2cde8e
--- /dev/null
+++ b/infra/wikipedia/wikipedia-validator.ts
@@ -0,0 +1,46 @@
+import {
+  WikipediaValidator,
+  WikipediaValidationResult,
+} from '../../domain/services/wikipedia-validator'
+
+const BIOGRAPHY_CATEGORY = 'Catégorie:Wikipédia:Article biographique'
+
+function extractLangAndTitle(url: string): { lang: string; title: string } | null {
+  const match = url.match(/^https:\/\/(fr|en)\.wikipedia\.org\/wiki\/(.+)$/)
+  if (!match) return null
+  return { lang: match[1], title: match[2] }
+}
+
+export function createWikipediaValidator(): WikipediaValidator {
+  return {
+    async validatePage(url: string): Promise<WikipediaValidationResult> {
+      const parsed = extractLangAndTitle(url)
+      if (!parsed) return { exists: false, isBiography: false }
+
+      const apiUrl =
+        `https://${parsed.lang}.wikipedia.org/w/api.php` +
+        `?action=query&format=json&prop=categories&titles=${encodeURIComponent(parsed.title)}&cllimit=50`
+
+      const response = await fetch(apiUrl, {
+        headers: { 'User-Agent': 'Debats.co/1.0 (https://debats.co)' },
+      })
+
+      if (!response.ok) return { exists: false, isBiography: false }
+
+      const data = await response.json()
+      const pages = data.query?.pages
+      if (!pages) return { exists: false, isBiography: false }
+
+      const page = Object.values(pages)[0] as { missing?: string; categories?: { title: string }[] }
+
+      if ('missing' in page) {
+        return { exists: false, isBiography: false }
+      }
+
+      const categories = page.categories ?? []
+      const isBiography = categories.some((c) => c.title === BIOGRAPHY_CATEGORY)
+
+      return { exists: true, isBiography }
+    },
+  }
+}