package com.wgtgt.fanshe;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;

public class FanShe {
public static final String ONE_EMPTY="\t";
public static final String TWO_EMPTY="\t\t";
	/**
	 * @param args 程序入口,
	 */
	public static void main(String[] args) {
//		find("com.wgtgt.fanshe.FanShe");
		find("com.wgtgt.bean.Book");
	}
	public static void find(String className){
		StringBuilder begin=new StringBuilder();
		begin.append("package test;");
		begin.append("\n");
		begin.append("public class ");
		begin.append("Test");
		begin.append("{");
		begin.append("\n");
		begin.append("	public static void main(String[] args){");
		//begin.append("\n");
		System.out.println(begin);
		Class clazz = null;
		try {
			clazz = Class.forName(className);
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		Method[]methods=clazz.getMethods();
		for (Method method : methods) {
//			System.out.println(method.getName());
//			System.out.println(method.getDeclaringClass());
//			System.out.println(method.getGenericExceptionTypes());
////			Type[]types=method.getGenericParameterTypes();
////			for (Type type : types) {
////				System.out.println("type="+type);
////			}
//			System.out.println(method.getGenericReturnType());
//			System.out.println(method.getModifiers());
//			System.out.println(method.toGenericString());
			//break;
			System.out.println(TWO_EMPTY+"//==================");
//			String className2=method.getDeclaringClass().getSimpleName();
			String className3=className.substring(className.lastIndexOf(".")+1);

			String methodName=method.getName();
			String str=null;
			String resultYuanShi=method.getReturnType().getName();
			String result=null;
			String returnName=format(method.getName());
			String sum=null;
			String printStr=null;
			boolean isVoid=false;
			if("void".equals(resultYuanShi)){
				result="";
				isVoid=true;
			}else{
				result=cast2(resultYuanShi)+" "+returnName+"=";
				printStr=TWO_EMPTY+"System.out.println(\""+returnName+"=\"+"+returnName+");";
			}
			if(isStaticMethod(method)){
				str=className3+"."+methodName+"("+paramList(method)+");";
			}else{
				str=getFirstLittle(className3)+"."+methodName+"("+paramList(method)+");";
			}
			if(isVoid){
				sum=TWO_EMPTY+result+str;
			}else{
				sum=TWO_EMPTY+result+str+"\n"+printStr;
			}
			System.out.println(sum);
		}
		String end="\t}\n}";
		System.out.println(end);
	}
	private static String format(String name) {
		if(name.startsWith("get")){
			return getFirstLittle(name.substring(3));
		}
		return name;
	}
	private static String paramList(Method method) {
		StringBuilder sb=new StringBuilder();
		Type[]types=method.getGenericParameterTypes();
		for (Type type : types) {
			sb.append(cast(type));
			sb.append(",");
		}
		if(types.length>0){
			sb.deleteCharAt(sb.length()-1);
		}
		return sb.toString();
	}
	private static String cast(Type type) {
		String typeName=type.toString();
		if("int".equals(typeName)){
			return "123";
		}else if("long".equals(typeName)){
			return "123";
		}else if("byte".equals(typeName)){
			return "123";
		}else if("double".equals(typeName)){
			return "123.25";
		}else if("boolean".equals(typeName)){
			return "false";
		}else if("char".equals(typeName)){
			return "'a'";
		}else if("short".equals(typeName)){
			return "123";
		}else if("float".equals(typeName)){
			return "123.25";

		}else if("class java.lang.String".equals(typeName)){
			return "\"abc\"";
		}else if("class [Ljava.lang.String;".equals(typeName)){
			return "new String[]{\"abc\",\"eee\"}";
		}else if("class java.util.Date".equals(typeName)){
			return "new java.util.Date();";
		}else if("interface java.util.List".equals(typeName)){
			return "list";
		}else if("class java.util.ArrayList".equals(typeName)){
			return "list";
		}else if("interface java.util.Map".equals(typeName)){
			return "map";
		}else if("class java.util.HashMap".equals(typeName)){
			return "map";
		}else if("".equals(typeName)){
			return "";
		}else if("class java.lang.Object".equals(typeName)){
			return "\"abc\"";
		}else{
			return "null";
			//System.err.print(typeName);
		}
		//return null;
	}
	private static String cast2(String typeName) {
		//String typeName=type.toString();
		if("void".equals(typeName)){
			return "";
		}else if("int".equals(typeName)){
			return "int";
		}else if("long".equals(typeName)){
			return "long";
		}else if("byte".equals(typeName)){
			return "byte";
		}else if("double".equals(typeName)){
			return "double";
		}else if("boolean".equals(typeName)){
			return "boolean";
		}else if("char".equals(typeName)){
			return "char";
		}else if("short".equals(typeName)){
			return "short";
		}else if("float".equals(typeName)){
			return "float";

		}else if("java.lang.String".equals(typeName)){
			return "String";
		}else if("[Ljava.lang.String;".equals(typeName)){
			return "String[]";
		}else if("class java.util.Date".equals(typeName)){
			return "java.util.Date";
		}else if("interface java.util.List".equals(typeName)){
			return "list";
		}else if("class java.util.ArrayList".equals(typeName)){
			return "ArrayList";
		}else if("interface java.util.Map".equals(typeName)){
			return "map";
		}else if("class java.util.HashMap".equals(typeName)){
			return "HashMap";
		}else if("".equals(typeName)){
			return "";
		}else if("java.lang.Object".equals(typeName)){
			return "Object";
		}else{
			return "Object";
			//System.err.print(typeName);
		}
		//return null;
	}
	private static boolean isStaticMethod(Method method) {
		return Modifier.isStatic(method.getModifiers());
	}

	private static String getFirstLittle(String str) {
		return str.substring(0,1).toLowerCase()+str.substring(1);
	}

}