config thingies

1 files changed, 63 insertions, 0 deletions

diff --git a/src/main/java/io/polyfrost/oneconfig/interfaces/Config.java b/src/main/java/io/polyfrost/oneconfig/interfaces/Config.java
new file mode 100644
index 0000000..48abf1c
--- /dev/null
+++ b/src/main/java/io/polyfrost/oneconfig/interfaces/Config.java
@@ -0,0 +1,63 @@
+package io.polyfrost.oneconfig.interfaces;
+
+import com.google.gson.*;
+
+import java.io.*;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+
+public class Config {
+    private final File configFile;
+
+    public Config(File configFile) {
+        this.configFile = configFile;
+        if (configFile.exists())
+            load();
+        else
+            save();
+    }
+
+    Gson gson = new GsonBuilder().excludeFieldsWithModifiers(Modifier.TRANSIENT).setPrettyPrinting()
+            .registerTypeAdapterFactory(OneConfigTypeAdapterFactory.getStaticTypeAdapterFactory()).create();
+
+    public void save() {
+        try (BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(configFile), StandardCharsets.UTF_8))) {
+            writer.write(gson.toJson(this.getClass()));
+        } catch (IOException ignored) {
+        }
+    }
+
+    public void load() {
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(configFile), StandardCharsets.UTF_8))) {
+            processPart(new JsonParser().parse(reader).getAsJsonObject(), this.getClass());
+        } catch (IOException ignored) {
+        }
+    }
+
+    private void processPart(JsonObject json, Class<?> clazz) {
+        for (Map.Entry<String, JsonElement> element : json.entrySet()) {
+            String name = element.getKey();
+            JsonElement value = element.getValue();
+            if (value.isJsonObject()) {
+                for (Class<?> innerClass : clazz.getClasses()) {
+                    if (innerClass.getSimpleName().equals(name)) {
+                        processPart(value.getAsJsonObject(), innerClass);
+                        break;
+                    }
+                }
+            } else {
+                try {
+                    Field field = clazz.getField(name);
+                    TypeAdapter<?> adapter = gson.getAdapter(field.getType());
+                    Object object = adapter.fromJsonTree(value);
+                    field.setAccessible(true);
+                    field.set(null, object);
+                } catch (NoSuchFieldException | IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+}