From 75f26f4ed9011e9dd12f5b49b26b94f8f4dacac1 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Fri, 15 Jan 2021 00:42:54 +0800
Subject: Version 1.4.0: supports reintroducing llama item duplication. Add
 configuration file.

---
 .../keuin/ohmyvanillamc/OhMyVanillaMinecraft.java  | 60 ++++++++++++++++++++--
 1 file changed, 56 insertions(+), 4 deletions(-)

(limited to 'src/main/java/com/keuin/ohmyvanillamc/OhMyVanillaMinecraft.java')

diff --git a/src/main/java/com/keuin/ohmyvanillamc/OhMyVanillaMinecraft.java b/src/main/java/com/keuin/ohmyvanillamc/OhMyVanillaMinecraft.java
index a3d5c90..f76321a 100644
--- a/src/main/java/com/keuin/ohmyvanillamc/OhMyVanillaMinecraft.java
+++ b/src/main/java/com/keuin/ohmyvanillamc/OhMyVanillaMinecraft.java
@@ -1,15 +1,31 @@
 package com.keuin.ohmyvanillamc;
 
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonIOException;
 import net.fabricmc.api.ModInitializer;
 import net.minecraft.server.network.EntityTrackerEntry;
 
+import java.io.*;
 import java.lang.reflect.Field;
+import java.nio.charset.StandardCharsets;
+import java.util.logging.Logger;
 
 public class OhMyVanillaMinecraft implements ModInitializer {
 
-	public static boolean disableFishSchooling = true;
-	public static boolean disablePhantomSpawning = false;
-	public static boolean disableWanderingTraderSpawning = false;
+	private static final Logger LOGGER = Logger.getLogger("OhMyVanillaMinecraft");
+
+	private static OmvmConfiguration configuration = null;
+	private static final OmvmConfiguration defaultConfiguration = new OmvmConfiguration(
+			false,
+			false,
+			false,
+			false
+	);
+
+	public static OmvmConfiguration getConfiguration() {
+		return configuration != null ? configuration : defaultConfiguration;
+	}
 
 	private static void disableEntityTrackerEntrySpamming() {
 		try {
@@ -35,7 +51,43 @@ public class OhMyVanillaMinecraft implements ModInitializer {
 		// However, some things (like resources) may still be uninitialized.
 		// Proceed with mild caution.
 
-		System.out.println("OhMyVanillaMinecraft is loading...");
+		LOGGER.info("Loading configuration...");
+
+		// load configuration
+
+		final String fileName = "omvm.json";
+		final File file = new File(fileName);
+		if (!file.exists()) {
+			LOGGER.info("Configuration file does not exist! Use default configuration.");
+			try (FileOutputStream fileOutputStream = new FileOutputStream(file)) {
+				final String jsonString = (new GsonBuilder().setPrettyPrinting().create()).toJson(defaultConfiguration);
+				try (OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream)) {
+					outputStreamWriter.write(jsonString);
+				}
+			} catch (FileNotFoundException e) {
+				LOGGER.severe("Cannot write default configuration to file `" + fileName + "`: " + e);
+			} catch (IOException e) {
+				LOGGER.severe("Failed to write default configuration to file `" + fileName + "`: " + e);
+			}
+		} else {
+			try (FileInputStream fileInputStream = new FileInputStream(file)) {
+				try (InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, StandardCharsets.UTF_8)) {
+					try (BufferedReader reader = new BufferedReader(inputStreamReader)) {
+						configuration = (new Gson()).fromJson(reader, OmvmConfiguration.class);
+					}
+				}
+			} catch (IOException e) {
+				LOGGER.severe("Failed to read config file `" + fileName + "`: " + e);
+			} catch (JsonIOException e) {
+				LOGGER.severe("Failed to decode config json file `" + fileName + "`: " + e);
+			}
+		}
+
+		if (configuration == null) {
+			configuration = defaultConfiguration;
+		}
+
+		LOGGER.info("Configuration: \n==========\n" + configuration + "\n==========");
 
 	}
 }
-- 
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