package InOutStream;
import java.util.* ;
import java.io.* ;

class codeCount {
	private static int count ; //統(tǒng)計總行數(shù)
	private static int countCPP ;//CPP
	private static int countJAVA ;//java
	private static int countPY ;//python
	private String path ; //用于接收用戶輸入保存代碼的文件夾的路徑
	private int reading(String path) throws Exception { //該函數(shù)用來統(tǒng)計一個代碼文件的行數(shù)
		FileReader reader = new FileReader(path) ;
		BufferedReader buffer = new BufferedReader(reader) ;
		int count = 0 ;
		while(buffer.readLine()!=null) {
			count ++ ;
		}
		buffer.close() ;
		reader.close() ;
		return count ;
	}
	private void caculate(String nowpath) throws Exception{//計數(shù)函數(shù)
		File nowfile = new File(nowpath) ;
		if (nowfile.isFile()) {
			if (nowpath.endsWith(".cpp")) {
				int sum = reading(nowpath) ;
				countCPP += sum ;
				count += sum ;
			}
			else if (nowpath.endsWith(".py")) {
				int sum = reading(nowpath) ;
				countPY += sum ;
				count += sum ;
			}
			else if (nowpath.endsWith(".java")) {
				int sum = reading(nowpath) ;
				countJAVA += sum ;
				count += sum ;
			}
			else {
				System.out.println(nowpath.substring(nowpath.indexOf("."))+":該類型文件不屬于代碼文件或該代碼文件統(tǒng)計功能正在開發(fā)中，敬請期待！");
			}
		}
		else { //如果這個路徑表示的是一個文件夾，則執(zhí)行遞歸操作
			String []filesset = nowfile.list() ;
			for (String i:filesset ) {
				String newpath = nowpath + nowfile.separator + i ;//合成路徑
				caculate(newpath) ;
			}
		}
	}
	public codeCount(String src) {
		path = src ;
	}
	public static int getLinesCPP() {
		return countCPP ;
	}
	public static int getLinesJAVA() {
		return countJAVA ;
	}
	public static int getLinesPY() {
		return countPY ;
	}
	public static int getLines() {
		return count ;
	}
	public void caculator() throws Exception { //外界包裝
		this.caculate(path) ;
	}
	public String toString() { //重寫toString方法
		return "統(tǒng)計結(jié)果如下:\n" +
				"cpp行數(shù)：\n"+countCPP +
				"\njava行數(shù)：\n"+countJAVA +
				"\npython行數(shù)：\n"+countPY ;
	}
}

public class Count{
	public static void main(String []args) throws Exception {
		Scanner cin = new Scanner(System.in) ;
		System.out.println("請輸入地址：");
		String path = cin.next() ;
		codeCount machine = new codeCount(path) ;
		machine.caculator(); 
		System.out.println(machine.toString());
		cin.close();
	}
}