package com.lunhan.xxx.common.serializer.deserializer;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.lunhan.xxx.common.ConstantFactory;
import com.lunhan.xxx.common.util.CalendarUtil;
import com.lunhan.xxx.common.util.NumericUtil;
import com.lunhan.xxx.common.util.StringUtil;

import java.io.IOException;
import java.util.Calendar;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 自定义json反序列化 Calendar 属性
 * @author linliu
 * @date   2020-05-12
 */
public class CQCalendarDeSerializer extends JsonDeserializer<Calendar> {
    @Override
    public Calendar deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
        String value = p.getText();

        if(StringUtil.isMatch(value, ConstantFactory.REGEX_DATE)) {
            return CalendarUtil.fromDateStr(value);
        } else if(StringUtil.isMatch(value, ConstantFactory.REGEX_DATETIME)) {
            return CalendarUtil.fromDateTimeStr(value);
        } else if(StringUtil.isMatch(value, ConstantFactory.REGEX_DATETIME_FULL)) {
            return CalendarUtil.fromDateTimeMSStr(value);
        } else if(StringUtil.isMatch(value, ConstantFactory.REGEX_DATETIME_JAVA)) {
            Pattern pattern = Pattern.compile(ConstantFactory.REGEX_DATETIME_JAVA);
            Matcher matcher = pattern.matcher(value);
            if(matcher.find()) {
                String timestamp = matcher.group("timestamp");
                return CalendarUtil.fromMillis(NumericUtil.tryParseLong(timestamp));
            }
        } else if(StringUtil.isMatch(value, "^[0-9]{13}$")) {
            return CalendarUtil.fromMillis(NumericUtil.tryParseLong(value));
        }
        throw new IOException("can't be deserialize as type “Calendar”, " + value);
    }
}