From 4c7a74c6c8a89e58e137982edd1f6a12c798262a Mon Sep 17 00:00:00 2001
From: shinya <kobayashi_shinya@outlook.com>
Date: Mon, 7 Apr 2025 01:17:25 +0800
Subject: [PATCH] feat: giscus i18n

---
 src/components/Comments/Giscus.astro | 20 ++++++++++++++++----
 src/i18n/config.ts                   |  9 +++++++++
 src/types/index.d.ts                 |  1 -
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/src/components/Comments/Giscus.astro b/src/components/Comments/Giscus.astro
index 8212d73..ed3b9cf 100644
--- a/src/components/Comments/Giscus.astro
+++ b/src/components/Comments/Giscus.astro
@@ -1,6 +1,19 @@
 ---
-import { themeConfig } from "@/config";
+import { defaultLocale, themeConfig } from '@/config'
+import { giscusLocaleMap } from '@/i18n/config'
 
+// Get the language code of Giscus
+function getGiscusLang(currentPath: string, defaultLocale: string): string {
+  // Extract language code from path
+  const pathLang = Object.keys(giscusLocaleMap).find(code =>
+    currentPath.startsWith(`/${code}/`),
+  )
+  // Return found path language or default language
+  const lang = pathLang || defaultLocale
+  return giscusLocaleMap[lang as keyof typeof giscusLocaleMap]
+}
+
+const giscusLang = getGiscusLang(Astro.url.pathname, defaultLocale)
 const {
   repo = "",
   repoID = "",
@@ -8,7 +21,6 @@ const {
   categoryID = "",
   mapping = "pathname",
   inputPosition = "top",
-  lang = "zh-CN",
   loading = "lazy",
 } = themeConfig.comment?.giscus ?? {};
 ---
@@ -24,7 +36,7 @@ const {
     categoryID,
     mapping,
     inputPosition,
-    lang,
+    giscusLang,
     loading,
   }}
 >
@@ -53,7 +65,7 @@ const {
     script.setAttribute("data-theme", theme);
     script.setAttribute("data-emit-metadata", "0");
     script.setAttribute("data-input-position", inputPosition);
-    script.setAttribute("data-lang", lang);
+    script.setAttribute("data-lang", giscusLang);
     script.setAttribute("data-loading", loading);
     script.crossOrigin = "anonymous";
     script.async = true;
diff --git a/src/i18n/config.ts b/src/i18n/config.ts
index eed7232..6ef713e 100644
--- a/src/i18n/config.ts
+++ b/src/i18n/config.ts
@@ -19,5 +19,14 @@ export const walineLocaleMap: Record<string, string> = {
   'ru': 'ru-RU',
 }
 
+export const giscusLocaleMap: Record<string, string> = {
+  'zh': 'zh-CN',
+  'zh-tw': 'zh-TW',
+  'ja': 'ja',
+  'en': 'en',
+  'es': 'es',
+  'ru': 'ru',
+}
+
 // Supported Languages
 export const supportedLangs = Object.keys(langMap).flat()
diff --git a/src/types/index.d.ts b/src/types/index.d.ts
index 5f736b0..1af097e 100644
--- a/src/types/index.d.ts
+++ b/src/types/index.d.ts
@@ -53,7 +53,6 @@ export interface ThemeConfig {
       categoryID: string
       mapping: 'pathname' | 'url' | 'title'
       inputPosition: 'top' | 'bottom'
-      lang: Exclude<typeof supportedLangs[number], 'zh-CN'>,
       loading: 'lazy' | 'embed'
     }
   }