package com.farriver.bwf.common.utilities;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

public class DateTimeUtils {

    private static final Logger logger = LoggerFactory.getLogger(DateTimeUtils.class);

    public static Date parseDate(String dateStr, DateFormat dateFormat) {
        Date date = null;
        try {
            date = dateFormat.parse(dateStr);
        } catch (Exception e) {

        }
        return date;
    }

    public static String dateToString(Date date, String dateFormat) {
        String dateStr = null;
        try {
            SimpleDateFormat format = new SimpleDateFormat(dateFormat);
            dateStr = format.format(date);
        } catch (Exception e) {

        }
        return dateStr;
    }

    public static Date parseDate(String dateStr, String dateFormat) {
        Date date = null;
        try {
            SimpleDateFormat format = new SimpleDateFormat(dateFormat);
            date = format.parse(dateStr);
        } catch (Exception e) {

        }
        return date;
    }

    public static Map<String, Date> getWorkDayDuration(Date date) {
        Map<String, Date> map = new HashMap<>();
        Date from = null;
        Date to = null;

        try {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.set(Calendar.HOUR_OF_DAY, 8);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);

            from = calendar.getTime();

            calendar.setTime(date);
            calendar.set(Calendar.HOUR_OF_DAY, 17);
            calendar.set(Calendar.MINUTE, 00);
            calendar.set(Calendar.SECOND, 00);
            calendar.set(Calendar.MILLISECOND, 999);

            to = calendar.getTime();

        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }

        map.put("from", from);
        map.put("to", to);

        return map;
    }

    public static Map<String, Date> getDayDuration(Date date) {
        Map<String, Date> map = new HashMap<>();
        Date from = null;
        Date to = null;

        try {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.set(Calendar.HOUR_OF_DAY, 0);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);

            from = calendar.getTime();

            calendar.setTime(date);
            calendar.set(Calendar.HOUR_OF_DAY, 23);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);

            to = calendar.getTime();

        } catch (Exception e) {

        }

        map.put("from", from);
        map.put("to", to);

        return map;
    }

    public static Map<String, Date> getMonthDuration(Date date) {
        Map<String, Date> map = new HashMap<>();
        Date from = null;
        Date to = null;

        try {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);

            Calendar c = Calendar.getInstance();
            c.set(Calendar.YEAR, year);
            c.set(Calendar.MONTH, month);
            c.set(Calendar.DAY_OF_MONTH, 1);
            c.set(Calendar.HOUR_OF_DAY, 0);
            c.set(Calendar.MINUTE, 0);
            c.set(Calendar.SECOND, 0);
            c.set(Calendar.MILLISECOND, 0);

            from = c.getTime();

            Calendar c2 = Calendar.getInstance();
            c2.set(Calendar.YEAR, year);
            c2.set(Calendar.MONTH, month);
            int lastDate = c2.getActualMaximum(Calendar.DATE);
            c2.set(Calendar.DAY_OF_MONTH, lastDate);
            c2.set(Calendar.HOUR_OF_DAY, 23);
            c2.set(Calendar.MINUTE, 59);
            c2.set(Calendar.SECOND, 59);
            c2.set(Calendar.MILLISECOND, 999);

            to = c2.getTime();
        } catch (Exception e) {

        }

        map.put("from", from);
        map.put("to", to);

        return map;
    }

    public static Map<String, Date> getYearDuration(Date date) {
        Map<String, Date> map = new HashMap<>();
        Date from = null;
        Date to = null;

        try {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);

            Calendar c = Calendar.getInstance();
            c.set(year, 0, 1);
            c.set(Calendar.HOUR_OF_DAY, 0);
            c.set(Calendar.MINUTE, 0);
            c.set(Calendar.SECOND, 0);
            c.set(Calendar.MILLISECOND, 0);

            from = c.getTime();

            Calendar c2 = Calendar.getInstance();
            c2.set(Calendar.YEAR, year + 1);
            c2.set(Calendar.MONTH, 0);
            c2.set(Calendar.DAY_OF_MONTH, 0);
            c2.set(Calendar.DATE, 0);
            c2.set(Calendar.HOUR_OF_DAY, 23);
            c2.set(Calendar.MINUTE, 59);
            c2.set(Calendar.SECOND, 59);
            c2.set(Calendar.MILLISECOND, 999);

            to = c2.getTime();
        } catch (Exception e) {

        }

        map.put("from", from);
        map.put("to", to);

        return map;
    }

    public static Integer getRemainingDay(Date from, Date to) {
        if (from == null || to == null) {
            return null;
        }
        try {
            var duration = to.getTime() - from.getTime();

            return (int) Math.ceil((double) duration / 24 / 60 / 60 / 1000);
        } catch (Exception ignored) {

        }

        return null;
    }
}