package net.cratemuncher.bukpy;

import org.bukkit.Bukkit;
import org.bukkit.event.Event;
import org.bukkit.event.EventException;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.plugin.EventExecutor;
import org.python.core.PyFunction;
import org.python.core.PyString;
import org.python.util.PythonInterpreter;

import java.util.ArrayList;
import java.util.HashMap;

public class PyScript implements Listener, EventExecutor {
    BukPy plugin = null;
    PyFunction onEnable = null;
    PyFunction onDisable = null;
    HashMap<Class<? extends Event>, Boolean> hasRegisteredEvent = null;
    HashMap<Class<? extends Event>, ArrayList<PyFunction>> events = null;

    public PyScript(String file, BukPy plugin) {
        events = new HashMap<Class<? extends Event>, ArrayList<PyFunction>>();
        hasRegisteredEvent = new HashMap<Class<? extends Event>, Boolean>();
        this.plugin = plugin;
        PythonInterpreter interp = new PythonInterpreter();
        interp.set("script", this);
        interp.execfile(file);
    }

    public PyFunction enable(PyFunction func) {
        onEnable = func;
        return func;
    }

    public PyFunction disable(PyFunction func) {
        onDisable = func;
        return func;
    }

    public PyFunction event(PyFunction func, Class<? extends Event> eventType, EventPriority priority) {
        registerEvent(func, eventType, priority);
        return func;
    }

    public PyFunction event(PyFunction func) {
        System.out.println("Hi!"); //THIS WORKS!
        return func;
    }

    public PyFunction event(PyFunction func, PyString eventType, PyString priorityName) { //THIS DOES NOT
        Class<? extends Event> clazz = Utils.getEventByName(eventType.asString());
        EventPriority priority = EventPriority.valueOf(priorityName.asString().toUpperCase());
        if (priority == null) {
            throw new IllegalArgumentException("Could not find an event priority of " + priorityName.asString() + "! Try lowest, low, medium, high, highest or monitor!");
        }
        registerEvent(func, clazz, priority);
        return func;
    }

    @Override
    public void execute(Listener listener, Event event) throws EventException {
        ArrayList<PyFunction> eventList = events.get(event.getClass());
        for (PyFunction eventFunc : eventList) {
            eventFunc._jcall(new Object[] {event});
        }
    }

    private void registerEvent(PyFunction func, Class<? extends Event> eventType, EventPriority priority) {
        if (!events.containsKey(eventType)) {
            events.put(eventType, new ArrayList<PyFunction>());
        }
        ArrayList<PyFunction> eventList = events.get(eventType);
        eventList.add(func);
        events.put(eventType, new ArrayList<PyFunction>());
        if (!hasRegisteredEvent.containsKey(eventType) || !hasRegisteredEvent.get(eventType)) {
            Bukkit.getPluginManager().registerEvent(eventType, this, priority, this, this.plugin);
        }
    }
}