From 524e7eac8ba7c9078707b17dbe5e84357961f2d6 Mon Sep 17 00:00:00 2001
From: Virgil <virgil@lethean.io>
Date: Wed, 1 Apr 2026 23:34:03 +0000
Subject: [PATCH] feat(validate): localise article validation prompts

Co-Authored-By: Virgil <virgil@lethean.io>
---
 validate.go      | 11 +++++++++++
 validate_test.go | 24 ++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/validate.go b/validate.go
index c7f3bec..ff5aa9e 100644
--- a/validate.go
+++ b/validate.go
@@ -44,6 +44,17 @@ type IrregularResult struct {
 
 // articlePrompt builds a fill-in-the-blank prompt for article prediction.
 func articlePrompt(noun string) string {
+	return articlePromptForLang(currentLangForGrammar(), noun)
+}
+
+func articlePromptForLang(lang, noun string) string {
+	noun = core.Trim(noun)
+	if isFrenchLanguage(lang) {
+		return core.Sprintf(
+			"Complete with the correct article (le/la/l'/les/un/une/des): ___ %s. Answer with just the article:",
+			noun,
+		)
+	}
 	return core.Sprintf(
 		"Complete with the correct article (a/an/the): ___ %s. Answer with just the article:",
 		noun,
diff --git a/validate_test.go b/validate_test.go
index d5b1718..856b3dd 100644
--- a/validate_test.go
+++ b/validate_test.go
@@ -327,6 +327,30 @@ func TestArticlePrompt(t *testing.T) {
 	}
 }
 
+func TestArticlePromptFrenchLocale(t *testing.T) {
+	prev := Default()
+	svc, err := New()
+	if err != nil {
+		t.Fatalf("New() failed: %v", err)
+	}
+	SetDefault(svc)
+	t.Cleanup(func() {
+		SetDefault(prev)
+	})
+
+	if err := SetLanguage("fr"); err != nil {
+		t.Fatalf("SetLanguage(fr) failed: %v", err)
+	}
+
+	prompt := articlePrompt("livre")
+	if !contains(prompt, "livre") {
+		t.Errorf("prompt should contain the noun: %q", prompt)
+	}
+	if !contains(prompt, "le/la/l'/les/un/une/des") {
+		t.Errorf("prompt should mention French article options: %q", prompt)
+	}
+}
+
 func TestIrregularPrompt(t *testing.T) {
 	prompt := irregularPrompt("swim", "past participle")
 	if !contains(prompt, "'swim'") {
-- 
2.45.3