From 1fff00f79acf30dc40ec68b1953f49736b93156b Mon Sep 17 00:00:00 2001
From: "Josiah (Gaming32) Glosson" <soujournme@gmail.com>
Date: Fri, 15 Apr 2022 09:10:02 -0500
Subject: [PATCH] Notify users that they need a JDK to import sorts

---
 .vscode/settings.json                         |  9 ++++-
 .../io/github/arrayv/main/SortAnalyzer.java   | 34 ++++++++++++++++++-
 .../io/github/arrayv/prompts/SortPrompt.java  |  5 ++-
 3 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index 5085bc9f..215bcb13 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,5 +1,12 @@
 {
     "java.configuration.updateBuildConfiguration": "interactive",
     "java.checkstyle.configuration": "${workspaceFolder}/checkstyle.xml",
-    "java.checkstyle.version": "9.3"
+    "java.checkstyle.version": "9.3",
+    "java.completion.filteredTypes": [
+        "com.sun.*",
+        "sun.*",
+        "jdk.*",
+        "org.graalvm.*",
+        "io.micrometer.shaded.*"
+    ]
 }
diff --git a/src/main/java/io/github/arrayv/main/SortAnalyzer.java b/src/main/java/io/github/arrayv/main/SortAnalyzer.java
index 01a6e5b6..c1549292 100644
--- a/src/main/java/io/github/arrayv/main/SortAnalyzer.java
+++ b/src/main/java/io/github/arrayv/main/SortAnalyzer.java
@@ -1,5 +1,6 @@
 package io.github.arrayv.main;
 
+import java.awt.Desktop;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
@@ -7,6 +8,8 @@
 import java.io.OutputStream;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.net.URLConnection;
@@ -513,6 +516,32 @@ private static String performImportReplacements(String source) {
         return source;
     }
 
+    public static JavaCompiler tryGetJavaCompiler() {
+        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+        if (compiler == null) {
+            if (
+                JOptionPane.showOptionDialog(
+                    null,
+                    "You must install a JDK on your system in order to import sorts.\n" +
+                        "Would you like to download one now?",
+                    "Import Sort",
+                    JOptionPane.YES_NO_OPTION,
+                    JOptionPane.ERROR_MESSAGE,
+                    null, null, null
+                ) == JOptionPane.YES_OPTION
+            ) {
+                try {
+                    Desktop.getDesktop().browse(new URI("https://adoptium.net/temurin/releases"));
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                } catch (URISyntaxException e) {
+                    throw new Error(e);
+                }
+            }
+        }
+        return compiler;
+    }
+
     public boolean importSort(File file, boolean showConfirmation) {
         // SLightly modified from https://stackoverflow.com/a/40772073/8840278
         // Pattern packagePattern = Pattern.compile("package (([a-zA-Z]{1}[a-zA-Z\\d_]*\\.)*[a-zA-Z][a-zA-Z\\d_]*);");
@@ -541,7 +570,10 @@ public boolean importSort(File file, boolean showConfirmation) {
         CACHE_DIR.mkdirs();
         final Path CACHE_PATH = CACHE_DIR.toPath();
 
-        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+        JavaCompiler compiler = tryGetJavaCompiler();
+        if (compiler == null) {
+            return false;
+        }
         StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
         Iterable<? extends JavaFileObject> jFiles = fileManager.getJavaFileObjects(file);
         int success;
diff --git a/src/main/java/io/github/arrayv/prompts/SortPrompt.java b/src/main/java/io/github/arrayv/prompts/SortPrompt.java
index 3f946384..48412af8 100644
--- a/src/main/java/io/github/arrayv/prompts/SortPrompt.java
+++ b/src/main/java/io/github/arrayv/prompts/SortPrompt.java
@@ -340,7 +340,10 @@ private void jButton1ActionPerformed() {//GEN-FIRST:event_jButton1ActionPerforme
     private void jButton2ActionPerformed() {//GEN-FIRST:event_jButton1ActionPerformed
         new Thread("ImportSort") {
             @Override
-            public void run(){
+            public void run() {
+                if (SortAnalyzer.tryGetJavaCompiler() == null) {
+                    return;
+                }
                 File f = new ImportSortDialog().getFile();
                 if (f == null) {
                     return;