ServerLite/src/main/java/de/npid7/serverlite/Configs/PlayerConfig.java

package de.npid7.serverlite.Configs;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

public class PlayerConfig {
  File file = null;
  int cfg_version = 0;

  public static class PlayerEntry {
    public String status = "";
    public String name = "";
    public PlayerEntry() {}
    public PlayerEntry(String s, String n) {
      status = s;
      name = n;
    }
  }

  HashMap<UUID, PlayerEntry> player_map = new HashMap<>();

  public PlayerConfig(String path) {
    file = new File(path);
    Load();
  }

  public boolean Load() {
    if (!file.exists()) {
      return false;
    }
    try {
      FileReader r = new FileReader(file);
      JsonParser prs = new JsonParser();
      JsonObject js = prs.parse(r).getAsJsonObject();
      r.close();
      int pver = js.get("version").getAsInt();
      if (pver != cfg_version) {
        // Use PVER to not create a complete new config
        file.delete();
        return false;
      }
      player_map.clear();
      // Load Data
      for (Map.Entry<String, JsonElement> e : js.entrySet()) {
        if (e.getKey().equals("version")) {
          continue;
        }
        UUID key = UUID.fromString(e.getKey());
        PlayerEntry pe = new PlayerEntry();
        pe.name = e.getValue().getAsJsonObject().get("name").getAsString();
        pe.status = e.getValue().getAsJsonObject().get("status").getAsString();
        player_map.put(key, pe);
      }
    } catch (IOException e) {
      e.printStackTrace();
      return true;
    }
    return false;
  }

  public boolean Save() {
    JsonObject js = new JsonObject();
    js.addProperty("version", cfg_version);
    for (Map.Entry<UUID, PlayerEntry> e : player_map.entrySet()) {
      JsonObject o = new JsonObject();
      o.addProperty("name", e.getValue().name);
      o.addProperty("status", e.getValue().status);
      js.add(e.getKey().toString(), o);
    }
    try {
      FileWriter w = new FileWriter(file);
      Gson g = new GsonBuilder().setPrettyPrinting().create();
      g.toJson(js, w);
      w.close();
    } catch (IOException e) {
      e.printStackTrace();
      return true;
    }
    return false;
  }

  public PlayerEntry Find(UUID ref) {
    if (player_map.containsKey(ref)) {
      return player_map.get(ref);
    }
    return null;
  }

  public void Add(UUID k, PlayerEntry e) {
    player_map.put(k, e);
  }

  public String getStatus(UUID ref) {
    return this.player_map.get(ref).status;
  }
  public void setStatus(UUID ref, String value) {
    this.player_map.get(ref).status = value;
  }

  public String getName(UUID ref) {
    return this.player_map.get(ref).name;
  }
  public void setName(UUID ref, String value) {
    this.player_map.get(ref).name = value;
  }
}