Release version

src/main/java/com/kasetoatz/dacl/DumbassConfig.java

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+package com.kasetoatz.dacl;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.kasetoatz.dacl.options.AbstractInputOption;
+import com.kasetoatz.dacl.options.AbstractOption;
+import com.kasetoatz.dacl.ui.ConfigScreen;
+import net.fabricmc.loader.api.FabricLoader;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.text.Text;
+import net.minecraft.util.crash.CrashException;
+import net.minecraft.util.crash.CrashReport;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+
+public class DumbassConfig
+{
+    public static int TEXT_LEFT = 20;
+    public static int TEXT_WIDTH = 200;
+    public static int TEXT_HEIGHT = 40;
+    public static int OPTION_RIGHT = 100;
+    public static int OPTION_WIDTH = 80;
+    public static int OPTION_HEIGHT = 40;
+    public static int ENTRY_HEIGHT = 50;
+    public static int DONE_BUTTON_WIDTH = 200;
+    public static int BOOLEAN_TRUE_COLOR = 0x00FF00;
+    public static int BOOLEAN_FALSE_COLOR = 0xFF0000;
+    public static int VALID_INPUT_COLOR = 0xFFFFFFFF;
+    public static int INVALID_INPUT_COLOR = 0xFFFF0000;
+    public static int BACKGROUND_COLOR_1 = 0x50555555;
+    public static int BACKGROUND_COLOR_2 = 0x50333333;
+
+    private final ArrayList<AbstractOption<?>> options = new ArrayList<>();
+    private ConfigScreen ui;
+    private final Path file;
+    private final Gson gson = new GsonBuilder().setPrettyPrinting().create();
+
+    private DumbassConfig(String filename)
+    {
+        this.file = FabricLoader.getInstance().getConfigDir().resolve(filename.endsWith(".json") ? filename : filename + ".json");
+    }
+
+    public Screen getUI(Screen parent)
+    {
+        this.ui.setParent(parent);
+        return this.ui;
+    }
+
+    private void load()
+    {
+        if (!Files.exists(this.file))
+        {
+            this.save();
+            return;
+        }
+        try
+        {
+            String json = Files.readString(this.file);
+            JsonObject data = this.gson.fromJson(json, JsonObject.class);
+            for (AbstractOption<?> option : this.options)
+            {
+                if (data.has(option.getKey()))
+                {
+                    JsonElement value = data.get(option.getKey());
+                    if (option instanceof AbstractInputOption<?> inputOption && !inputOption.isValid(value))
+                    {
+                        option.reset();
+                        continue;
+                    }
+                    option.fromJson(data.get(option.getKey()));
+                }
+            }
+            this.save();
+        }
+        catch (IOException exc)
+        {
+            throw new CrashException(CrashReport.create(exc, "Loading config file."));
+        }
+    }
+
+    public void save()
+    {
+        try
+        {
+            JsonObject data = new JsonObject();
+            for (AbstractOption<?> option : this.options)
+            {
+                data.add(option.getKey(), this.gson.toJsonTree(option.getValue()));
+            }
+            Files.writeString(this.file, this.gson.toJson(data));
+        }
+        catch (IOException exc)
+        {
+            throw new CrashException(CrashReport.create(exc, "Saving config file."));
+        }
+    }
+
+    public static Builder builder(Text uiTitle, String filename)
+    {
+        return new Builder(uiTitle, filename);
+    }
+
+    public static class Builder
+    {
+        private final DumbassConfig config;
+        private final Text uiTitle;
+
+        private Builder(Text uiTitle, String filename)
+        {
+            this.config = new DumbassConfig(filename);
+            this.uiTitle = uiTitle;
+        }
+
+        public Builder withOption(AbstractOption<?> option)
+        {
+            this.config.options.add(option);
+            return this;
+        }
+
+        public DumbassConfig build()
+        {
+            this.config.load();
+            this.config.ui = new ConfigScreen(uiTitle, this.config.options);
+            this.config.ui.setSaveCallback(this.config::save);
+            return this.config;
+        }
+    }
+}