package io.gitlab.jfronny.libjf.config;

import io.gitlab.jfronny.libjf.Libjf;
import net.fabricmc.loader.api.FabricLoader;

import java.lang.reflect.Field;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.*;

public class Config {
    public Class<?> configClass;
    public String translationPrefix;
    public Path path;
    public final List<EntryInfo> entries = new ArrayList<>();
    
    public Config(String modid, Class<?> config) {
        translationPrefix = modid + ".jfconfig.";
        path = FabricLoader.getInstance().getConfigDir().resolve(modid + ".json");
        configClass = config;

        for (Field field : config.getFields()) {
            EntryInfo info = new EntryInfo();

            info.field = field;
            entries.add(info);

            try { info.defaultValue = field.get(null); }
            catch (IllegalAccessException ignored) {}
        }

        try { Libjf.GSON.fromJson(Files.newBufferedReader(path), config); }
        catch (Exception e) { write(); }

        for (EntryInfo info : entries) {
            try {
                info.value = info.field.get(null);
            }
            catch (IllegalAccessException ignored) {}
        }
    }

    public void write() {
        try {
            if (!Files.exists(path)) Files.createFile(path);
            Files.write(path, Libjf.GSON.toJson(configClass.getDeclaredConstructor().newInstance()).getBytes());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}