Move the pullTranslations script into the codebase as kotlin.

build-logic/tools/src/main/java/org/signal/buildtools/SmartlingClient.kt

@@ -9,6 +9,7 @@ import okhttp3.Request
 import okhttp3.RequestBody.Companion.asRequestBody
 import okhttp3.RequestBody.Companion.toRequestBody
 import java.io.File
+import java.util.concurrent.TimeUnit
 
 /**
  * Client for interacting with the Smartling translation API.
@@ -19,7 +20,12 @@ class SmartlingClient(
   private val projectId: String
 ) {
 
-  private val client = OkHttpClient()
+  private val client = OkHttpClient.Builder()
+    .connectTimeout(30, TimeUnit.SECONDS)
+    .readTimeout(30, TimeUnit.SECONDS)
+    .writeTimeout(30, TimeUnit.SECONDS)
+    .build()
+
   private val jsonParser = JsonSlurper()
 
   /**
@@ -82,5 +88,52 @@ class SmartlingClient(
     return responseBody
   }
 
+  /**
+   * Gets the list of locales that have translations for a given file.
+   */
+  @Suppress("UNCHECKED_CAST")
+  fun getLocales(authToken: String, fileUri: String): List<String> {
+    val request = Request.Builder()
+      .url("https://api.smartling.com/files-api/v2/projects/$projectId/file/status?fileUri=$fileUri")
+      .header("Authorization", "Bearer $authToken")
+      .get()
+      .build()
+
+    val response = client.newCall(request).execute()
+    val responseBody = response.body.string()
+
+    if (!response.isSuccessful) {
+      throw SmartlingException("Failed to get locales with code ${response.code}: $responseBody")
+    }
+
+    val json = jsonParser.parseText(responseBody) as Map<String, Any>
+    val responseObj = json["response"] as? Map<String, Any>
+    val data = responseObj?.get("data") as? Map<String, Any>
+    val items = data?.get("items") as? List<Map<String, Any>>
+
+    return items?.mapNotNull { it["localeId"] as? String }
+      ?: throw SmartlingException("Failed to extract locales from response: $responseBody")
+  }
+
+  /**
+   * Downloads the translated file for a specific locale.
+   */
+  fun downloadFile(authToken: String, fileUri: String, locale: String): String {
+    val request = Request.Builder()
+      .url("https://api.smartling.com/files-api/v2/projects/$projectId/locales/$locale/file?fileUri=$fileUri")
+      .header("Authorization", "Bearer $authToken")
+      .get()
+      .build()
+
+    val response = client.newCall(request).execute()
+    val responseBody = response.body.string()
+
+    if (!response.isSuccessful) {
+      throw SmartlingException("Failed to download file for locale $locale with code ${response.code}: $responseBody")
+    }
+
+    return responseBody
+  }
+
   class SmartlingException(message: String) : RuntimeException(message)
 }