package noppes.npcs;

import noppes.npcs.config.ConfigDebug;
import noppes.npcs.constants.EnumScriptType;

import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
import java.util.WeakHashMap;
import java.util.concurrent.TimeUnit;
import java.util.logging.*;

public class LogWriter {
    private final static String name = "CustomNPCs";
    private final static Logger logger = Logger.getLogger(name);

    private final static WeakHashMap<UUID, NPCStamp> InitCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> TickCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> InteractCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> DialogCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> DamagedCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> KilledCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> AttackCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> TargetCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> CollideCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> KillsCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> DialogCloseCacheMap = new WeakHashMap<UUID, NPCStamp>();
    private final static WeakHashMap<UUID, NPCStamp> TimerCacheMap = new WeakHashMap<UUID, NPCStamp>();

    private final static SimpleDateFormat dateformat = new SimpleDateFormat("HH:mm:ss");
    private static Handler handler;

    static {
        try {
            File dir = new File("logs");
            if (!dir.exists())
                dir.mkdir();
            File file = new File(dir, name + "-latest.log");
            File lock = new File(dir, name + "-latest.log.lck");
            File file1 = new File(dir, name + "-1.log");
            File file2 = new File(dir, name + "-2.log");
            File file3 = new File(dir, name + "-3.log");

            if (lock.exists())
                lock.delete();

            if (file3.exists())
                file3.delete();
            if (file2.exists())
                file2.renameTo(file3);
            if (file1.exists())
                file1.renameTo(file2);
            if (file.exists())
                file.renameTo(file1);

            handler = new StreamHandler(new FileOutputStream(file), new Formatter() {
                @Override
                public String format(LogRecord record) {
                    String line = "";
                    if (record.getLevel() != NPCLogLevel.CNPCLog) {
                        StackTraceElement element = Thread.currentThread().getStackTrace()[8];
                        line = "[" + element.getClassName() + ":" + element.getLineNumber() + "] ";
                    }
                    String time = "[" + dateformat.format(new Date(record.getMillis())) + "][" + record.getLevel() + "]" + line;
                    if (record.getThrown() != null) {
                        StringWriter sw = new StringWriter();
                        PrintWriter pw = new PrintWriter(sw);
                        record.getThrown().printStackTrace(pw);
                        return time + sw.toString();
                    }
                    return time + record.getMessage() + System.getProperty("line.separator");
                }
            });
            handler.setLevel(Level.ALL);
            logger.addHandler(handler);
            logger.setUseParentHandlers(false);
            Handler consoleHandler = new ConsoleHandler();
            consoleHandler.setFormatter(handler.getFormatter());
            consoleHandler.setLevel(Level.FINEST);
            logger.addHandler(consoleHandler);
            logger.setLevel(Level.ALL);
            info(new Date().toString());
        } catch (SecurityException e) {

            e.printStackTrace();
        } catch (IOException e) {

            e.printStackTrace();
        }
    }

    public static void postScriptLog(UUID npcUUID, EnumScriptType type, String message) {
        switch (type) {
            case INIT:
                if (!CustomNpcs.InitIgnore) {
                    scriptLogCalculator(InitCacheMap, npcUUID, message);
                }
                break;
            case TICK:
                if (!CustomNpcs.TickIgnore) {
                    scriptLogCalculator(TickCacheMap, npcUUID, message);
                }
                break;
            case INTERACT:
                if (!CustomNpcs.InteractIgnore) {
                    scriptLogCalculator(InteractCacheMap, npcUUID, message);
                }
                break;
            case DIALOG:
                if (!CustomNpcs.DialogIgnore) {
                    scriptLogCalculator(DialogCacheMap, npcUUID, message);
                }
                break;
            case DAMAGED:
                if (!CustomNpcs.DamagedIgnore) {
                    scriptLogCalculator(DamagedCacheMap, npcUUID, message);
                }
                break;
            case KILLED:
                if (!CustomNpcs.KilledIgnore) {
                    scriptLogCalculator(KilledCacheMap, npcUUID, message);
                }
                break;
            case ATTACK:
                if (!CustomNpcs.AttackIgnore) {
                    scriptLogCalculator(AttackCacheMap, npcUUID, message);
                }
                break;
            case TARGET:
                if (!CustomNpcs.TargetIgnore) {
                    scriptLogCalculator(TargetCacheMap, npcUUID, message);
                }
                break;
            case COLLIDE:
                if (!CustomNpcs.CollideIgnore) {
                    scriptLogCalculator(CollideCacheMap, npcUUID, message);
                }
                break;
            case KILLS:
                if (!CustomNpcs.KillsIgnore) {
                    scriptLogCalculator(KillsCacheMap, npcUUID, message);
                }
            case DIALOG_CLOSE:
                if (!CustomNpcs.DialogCloseIgnore) {
                    scriptLogCalculator(DialogCloseCacheMap, npcUUID, message);
                }
                break;
            case TIMER:
                if (!CustomNpcs.TimerIgnore) {
                    scriptLogCalculator(TimerCacheMap, npcUUID, message);
                }
                break;
            default:
                break;
        }
    }

    public static void scriptLogCalculator(WeakHashMap<UUID, NPCStamp> map, UUID npcUUID, String message) {
        if (map.containsKey(npcUUID)) {
            NPCStamp stamp = map.get(npcUUID);
            long secondsSinceFirst = TimeUnit.MILLISECONDS.toSeconds(new Date().getTime() - stamp.makeDate.getTime());
            long millisecSinceLast = TimeUnit.MILLISECONDS.toMillis(stamp.recentDate.getTime() - stamp.makeDate.getTime());

            double frequency = (float) ConfigDebug.ScriptFrequency / 60;
            // Reset Log if 2 Minutes Pass
            if (secondsSinceFirst > 120) {
                LogWriter.script(message);
                stamp.counter = 1;
                stamp.makeDate = new Date();
                stamp.recentDate = new Date();
            }
            // ALWAYS Log the First 3 of Event
            else if (secondsSinceFirst < 10 && stamp.counter < 3) {
                LogWriter.script(message);
                stamp.recentDate = new Date();
            }
            // IF event occurs to QUICKLY Ignore.
            else if (millisecSinceLast < ConfigDebug.ScriptIgnoreTime) {
                stamp.recentDate = new Date();
            } else if (secondsSinceFirst > 10 && (double) stamp.counter / secondsSinceFirst > frequency) {
                // WARN
                LogWriter.script("[SPAM]:" + message);
                stamp.counter = 0;
                stamp.recentDate = new Date();
            }
            stamp.counter++;
        } else {
            map.put(npcUUID, new NPCStamp());
            LogWriter.script(message);
        }
    }

    public static void script(Object msg) {
        logger.log(NPCLogLevel.CNPCLog, msg.toString());
        handler.flush();
    }

    public static void info(Object msg) {
        logger.log(Level.INFO, msg.toString());
        handler.flush();
    }

    public static void error(Object msg) {
        logger.log(Level.SEVERE, msg.toString());
        handler.flush();
    }

    public static void error(Object msg, Exception e) {
        logger.log(Level.SEVERE, msg.toString());
        logger.log(Level.SEVERE, e.getMessage(), e);
        handler.flush();
    }

    public static void except(Exception e) {
        logger.log(Level.SEVERE, e.getMessage(), e);
        handler.flush();
    }
}

class NPCStamp {
    public Date makeDate = new Date();
    public Date recentDate = new Date();
    public int counter = 1;
};