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package com.redstoner.misc.mysql;

import com.redstoner.exceptions.NonSaveableConfigException;
import com.redstoner.misc.Main;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import java.util.Map.Entry;

public class Config {
	private File       file;
	private JSONObject config;
	private JSONParser parser;

	public Config() {
		file = null;
		parser = new JSONParser();
		config = new JSONObject();
	}

	public Config(JSONObject config) {
		this.file = null;
		this.parser = new JSONParser();
		this.config = config;
	}

	private Config(File file) throws IOException, ParseException {
		this.file = file;
		parser = new JSONParser();
		if (file.exists()) {
			config = loadConfig(file);
		} else {
			config = new JSONObject();
		}
	}

	private JSONObject loadConfig(File file) throws IOException, ParseException {
		FileReader reader = new FileReader(file);
		JSONObject object = (JSONObject) parser.parse(reader);
		reader.close();
		return object;
	}

	public static final Config getConfig(String fileName) throws IOException, ParseException {
		return new Config(new File(Main.plugin.getDataFolder(), fileName));
	}

	public static final Config getConfig(File file) throws IOException, ParseException {
		return new Config(file);
	}

	@Override
	public String toString() {
		return config.toJSONString();
	}

	public JSONObject asObject() {
		return config;
	}

	public void save() throws IOException, NonSaveableConfigException {
		if (file == null) {
			throw new NonSaveableConfigException();
		}
		PrintWriter writer = new PrintWriter(file);
		writer.write(config.toJSONString());
		writer.close();
	}

	public void refresh() throws IOException, ParseException, NonSaveableConfigException {
		if (file == null) {
			throw new NonSaveableConfigException();
		}
		loadConfig(file);
	}

	public void setFile(String fileName) {
		file = new File(Main.plugin.getDataFolder(), fileName);
	}

	public void setFile(File file) {
		this.file = file;
	}

	@SuppressWarnings ("unchecked")
	public void put(String key, String value) {
		config.put(key, value);
	}

	@SuppressWarnings ("unchecked")
	public void put(String key, List<String> value) {
		JSONArray array = new JSONArray();
		for (String entry : value) {
			array.add(entry);
		}
		config.put(key, array);
	}

	@SuppressWarnings ("unchecked")
	public void putArray(String key, JSONArray value) {
		config.put(key, value);
	}

	@SuppressWarnings ("unchecked")
	public void put(String key, Map<String, String> value) {
		JSONObject object = new JSONObject();
		for (String valKey : value.keySet()) {
			String valVal = value.get(valKey);
			object.put(valKey, valVal);
		}
		config.put(key, object);
	}

	@SuppressWarnings ("unchecked")
	public void put(String key, JSONObject value) {
		config.put(key, value);
	}

	@SuppressWarnings ("unchecked")
	public void putAll(Map<String, String> entry) {
		for (String key : entry.keySet()) {
			String value = entry.get(key);
			config.put(key, value);
		}
	}

	public String get(String key) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof String) {
				return (String) value;
			}
		}
		return null;
	}

	public boolean containsKey(String key) {
		return config.containsKey(key);
	}

	public String getOrDefault(String key, String defaultValue) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof String) {
				return (String) value;
			}
			return null;
		} else {
			return defaultValue;
		}
	}

	@SuppressWarnings ("unchecked")
	public List<String> getList(String key) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof JSONArray) {
				JSONArray    array  = (JSONArray) value;
				List<String> output = new ArrayList<String>();
				for (String entry : (String[]) array.toArray(new String[0])) {
					output.add(entry);
				}
				return output;
			}
		}
		return null;
	}

	public JSONArray getArray(String key) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof JSONArray) {
				JSONArray array = (JSONArray) value;
				return array;
			}
		}
		return null;
	}

	public Map<String, String> getMap(String key) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof JSONObject) {
				JSONObject object = (JSONObject) value;
				@SuppressWarnings ("unchecked")
				Set<Map.Entry<String, String>> entrySet = object.entrySet();
				Map<String, String> output = new HashMap<String, String>();
				for (Map.Entry<String, String> entry : entrySet) {
					output.put(entry.getKey(), entry.getValue());
				}
				return output;
			}
		}
		return null;
	}

	public JSONObject getObject(String key) {
		if (containsKey(key)) {
			Object value = config.get(key);
			if (value instanceof JSONObject) {
				JSONObject object = (JSONObject) value;
				return object;
			}
		}
		return null;
	}

	public void remove(String key) {
		config.remove(key);
	}

	@SuppressWarnings ("unchecked")
	public Set<Entry<String, String>> getAll() {
		return config.entrySet();
	}
}