chore: add language option to action.yml and use it in createPrompt.ts

action.yml

@@ -11,6 +11,10 @@ inputs:
     description: "OpenAI API model."
     required: false
     default: "gpt-4"
+  language:
+    description: "Natural language for the code review comments."
+    required: false
+    default: "english"
   exclude:
     description: "Glob patterns to exclude files from the diff analysis"
     required: false

src/createPrompt.ts

@@ -1,4 +1,5 @@
 import {Chunk, File} from "parse-diff";
+import * as core from "@actions/core";
 
 export interface PRDetails {
   owner: string;
@@ -8,11 +9,13 @@ export interface PRDetails {
   description: string;
 }
 
+const language: string = core.getInput("language");
+
 export function createPrompt(file: File, chunk: Chunk, prDetails: PRDetails): string {
   return `Your task is to review pull requests. Instructions:
 - Provide the response in following JSON format:  {"reviews": [{"lineNumber":  <line_number>, "reviewComment": "<review comment>"}]}
 - Do not give positive comments or compliments.
-- Provide review in Korean language.
+- Provide review in ${language} language.
 - Provide comments and suggestions ONLY if there is something to improve, otherwise "reviews" should be an empty array.
 - Write the comment in GitHub Markdown format.
 - Use the given description only for the overall context and only comment the code.