package com.munjaon.client.util;

import com.munjaon.client.server.packet.Packet;

import java.io.UnsupportedEncodingException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public final class MessageUtil {
    public static String getDateFormat(String format) {
        return LocalDateTime.now().format(DateTimeFormatter.ofPattern(format));
    }

    /**
     * DateFormat : yyyyMMdd
     * @return
     */
    public static String getDate() {
        return getDateFormat("yyyyMMdd");
    }

    /**
     * DateFormat : yyyyMMddHHmmss
     * @return
     */
    public static String getTime() {
        return getDateFormat("yyyyMMddHHmmss");
    }

    public static String doNumber(String spell){
        StringBuilder phoneNumber = new StringBuilder();
        if (spell == null){
            return phoneNumber.toString();
        }
        spell = spell.trim();
        int spell_Length = spell.length();
        if (spell_Length < 1){
            return phoneNumber.toString();
        }
        for (int i=0; i<spell_Length; i++){
            char eachChar = spell.charAt(i);
            if( 0x30 <= eachChar && eachChar <= 0x39 ){
                phoneNumber.append(eachChar);
            }
        }
        return phoneNumber.toString();
    }

    // 소수점 뒤에 해당하는 자리만큼 자르기
    public static String cutFloatNumber(String srcNum, int digit){
        String headNum = "";
        String tailNum = "";
        String retNum = "";

        if(!(srcNum == null || srcNum.trim().isEmpty())){
            srcNum = srcNum.trim();
            int index = srcNum.indexOf(".");
            // 소수점 위치가 0보다 큰경우만 처리
            if(index > 0){
                headNum = srcNum.substring(0, index);
                tailNum = srcNum.substring((index + 1));

                if (tailNum.isEmpty()) {
                    tailNum = "0";
                }
                if(tailNum.length() > digit){
                    tailNum = tailNum.substring(0, digit);
                }
                retNum = headNum + "." + tailNum;
            }
        }

        return retNum;
    }

    // 수신번호 체크하기
    public static boolean checkPhone(String src) {
        if(src == null || src.trim().length() < 10) {
            return false;
        }

        return src.startsWith("0");
    }
    // 문자열 공백 제거
    public static String trim(String obj) {
        return StringUtil.trim(obj);
    }

    public static boolean isEmptyForMessage(String obj, boolean trimFlag) {
        if (trimFlag)
            return obj == null || obj.trim().isEmpty();
        else
            return obj == null || obj.isEmpty();
    }

    public static boolean isEmptyForMessage(String obj) {
        return isEmptyForMessage(obj, false);
    }

    public static boolean isOverByteForMessage(String obj, int limitCount, boolean trimFlag) throws UnsupportedEncodingException {
        if (isEmptyForMessage(obj, trimFlag)) {
            return true;
        }

        return obj.getBytes(Packet.AGENT_CHARACTER_SET).length > limitCount;
    }

    public static boolean isOverByteForMessage(String obj, int limitCount) throws UnsupportedEncodingException {
        return isOverByteForMessage(obj, limitCount, false);
    }
}