export function now() {
    var d = new Date();
    var year = d.getFullYear();
    var month = change(d.getMonth() + 1);
    var day = change(d.getDate());
    var hour = change(d.getHours());
    var minute = change(d.getMinutes());
    var second = change(d.getSeconds());
    function change(t) {
        if (t < 10) {
            return '0' + t;
        } else {
            return t;
        }
    }
    return year + '-' + month + '-' + day + ' ' + hour + ':' + minute + ':' + second;
}

export function timeFormat(usedTime) {
    let hour = 0; let minute = 0; let second = 0; let sumTime = usedTime;
    if (sumTime) {
        if (sumTime >= 3600) {
            hour = Math.floor(sumTime / 3600) % 24;
            sumTime = (sumTime % 3600);
        }
        if (sumTime >= 60) {
            minute = Math.floor(sumTime / 60);
            sumTime = sumTime % 60;
        }
        second = Math.floor(sumTime);
    }
    function getTimeStr(val) {
        return val < 10 ? '0' + val : val;
    }
    return getTimeStr(hour) + ':' + getTimeStr(minute) + ':' + getTimeStr(second);
}

// 时分秒转为时间戳

export function toTimeStamp(time) {
    let s = 0;
    let hour = time.split(':')[0];
    let min = time.split(':')[1];
    let sec = time.split(':')[2];
    s = Number(hour * 3600) + Number(min * 60) + Number(sec);
    return s;
}

// 时间戳的只转为时分秒

export function formatDuring(mss) {
    let hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    let minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));
    let seconds = (mss % (1000 * 60)) / 1000;
    hours = hours < 10 ? ('0' + hours) : hours;
    minutes = minutes < 10 ? ('0' + minutes) : minutes;
    seconds = seconds < 10 ? ('0' + seconds) : seconds;
    return hours + ":" + minutes + ":" + seconds;
}

export function prefixIntrger(num, length) {
    return (Array(length).join('0') + num).slice(-length);
}