From 43ba6fdd8dca34aabc6c7e71e579856cb863a84f Mon Sep 17 00:00:00 2001
From: Shx Guo <int123c@gmail.com>
Date: Mon, 23 Dec 2024 02:17:02 +0800
Subject: [PATCH] Support setting language to GitHub Copilot chat

---
 .../LanguageServer/GitHubCopilotRequest.swift            | 1 +
 .../Services/GitHubCopilotChatService.swift              | 9 ++++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotRequest.swift b/Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotRequest.swift
index 1cbbf546..87219683 100644
--- a/Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotRequest.swift
+++ b/Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotRequest.swift
@@ -376,6 +376,7 @@ enum GitHubCopilotRequest {
 
             var source: GitHubCopilotChatSource? // inline or panel
             var workspaceFolder: String?
+            var userLanguage: String?
         }
 
         let requestBody: RequestBody
diff --git a/Tool/Sources/GitHubCopilotService/Services/GitHubCopilotChatService.swift b/Tool/Sources/GitHubCopilotService/Services/GitHubCopilotChatService.swift
index 459b259a..1534b961 100644
--- a/Tool/Sources/GitHubCopilotService/Services/GitHubCopilotChatService.swift
+++ b/Tool/Sources/GitHubCopilotService/Services/GitHubCopilotChatService.swift
@@ -43,7 +43,14 @@ public final class GitHubCopilotChatService: BuiltinExtensionChatServiceType {
             capabilities: .init(allSkills: false, skills: []),
             doc: doc,
             source: .panel,
-            workspaceFolder: workspace.projectURL.path
+            workspaceFolder: workspace.projectURL.path,
+            userLanguage: {
+                let language = UserDefaults.shared.value(for: \.chatGPTLanguage)
+                if language.isEmpty {
+                    return "Auto Detected"
+                }
+                return language
+            }()
         ))
 
         let stream = AsyncThrowingStream<String, Error> { continuation in