package love.distributedrebirth.bassboonyd;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

import love.distributedrebirth.bassboonyd.info.BãßBȍőnAuthor注;

@BãßBȍőnAuthor注(name = "للَّٰهِilLצسُو", copyright = "©Δ∞ 仙上主天")
public class BãßBȍőnSpiderʸᴰ {
	
	private final Map<Class<?>, SpiderSilk> spiderWeb = new HashMap<>();
	
	protected BãßBȍőnSpiderʸᴰ() {
	}
	
	public boolean hasEggType(Class<?> eggType) {
		return spiderWeb.containsKey(eggType);
	}
	
	public SpiderSilk silkRoad(Class<?> eggType) {
		SpiderSilk silkRoad = spiderWeb.get(eggType);
		if (silkRoad == null) {
			throw new IllegalStateException("No silk road found for type: "+eggType);
		}
		return silkRoad;
	}
	
	public void registrateEgg(Class<?> eggType, SpiderSilk spiderSilk) {
		if (spiderWeb.containsKey(eggType)) {
			throw new IllegalStateException("Can't registate class twice: "+eggType);
		}
		spiderWeb.put(eggType, spiderSilk);
	}
	
	public void registrateEgg(Class<?> eggType, Method m) {
		registrateEgg(eggType, createSenseWire(m));
	}
	
	public SpiderSilk createSenseWire(Method m) {
		boolean valid = false;
		Class<?>[] para = m.getParameterTypes();
		if (para.length == 0) {
			valid = true;
		}
		if (para.length == 1 && BãßBȍőn.class.isAssignableFrom(para[0])) {
			valid = true;
		}
		if (para.length == 2 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1])) {
			valid = true;
		}
		if (para.length == 3 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1]) && String.class.isAssignableFrom(para[2])) {
			valid = true;
		}
		if (!valid) {
			throw new IllegalStateException("Unknown method parameters on: "+m.getDeclaringClass().getSimpleName()+"."+m.toGenericString());
		}
		return new SpiderSilk() {
			
			@Override
			public Object senseWire(Object boon, String name, String description) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {
				Class<?>[] para = m.getParameterTypes();
				if (para.length == 0) {
					return m.invoke(null);
				}
				if (para.length == 1 && BãßBȍőn.class.isAssignableFrom(para[0])) {
					return m.invoke(null, boon);
				}
				if (para.length == 2 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1])) {
					return m.invoke(null, boon, name);
				}
				if (para.length == 3 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1]) && String.class.isAssignableFrom(para[2])) {
					return m.invoke(null, boon, name, description);
				}
				throw new IllegalStateException("Unknown method parameters on: "+m.getDeclaringClass().getSimpleName()+"."+m.toGenericString());
			}

			@Override
			public boolean isNamed() {
				Class<?>[] para = m.getParameterTypes();
				if (para.length == 2 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1])) {
					return true;
				}
				if (para.length == 3 && BãßBȍőn.class.isAssignableFrom(para[0]) && String.class.isAssignableFrom(para[1]) && String.class.isAssignableFrom(para[2])) {
					return true;
				}
				return false;
			}
		};
	}
	
	public interface SpiderSilk {
		
		boolean isNamed();
		
		Object senseWire(Object boon, String name, String description) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException;
	}
}