supervision-uniapp/common/util.js

import moment from 'moment'

export function formatTime(time) {
	if (typeof time !== 'number' || time < 0) {
		return time
	}

	var hour = parseInt(time / 3600)
	time = time % 3600
	var minute = parseInt(time / 60)
	time = time % 60
	var second = time

	return ([hour, minute, second]).map(function(n) {
		n = n.toString()
		return n[1] ? n : '0' + n
	}).join(':')
}

export function formatLocation(longitude, latitude) {
	if (typeof longitude === 'string' && typeof latitude === 'string') {
		longitude = parseFloat(longitude)
		latitude = parseFloat(latitude)
	}

	longitude = longitude.toFixed(2)
	latitude = latitude.toFixed(2)

	return {
		longitude: longitude.toString().split('.'),
		latitude: latitude.toString().split('.')
	}
}

export var dateUtils = {
	UNITS: {
		'年': 31557600000,
		'月': 2629800000,
		'天': 86400000,
		'小时': 3600000,
		'分钟': 60000,
		'秒': 1000
	},
	humanize: function(milliseconds) {
		var humanize = '';
		for (var key in this.UNITS) {
			if (milliseconds >= this.UNITS[key]) {
				humanize = Math.floor(milliseconds / this.UNITS[key]) + key + '前';
				break;
			}
		}
		return humanize || '刚刚';
	},
	format: function(dateStr) {
		var date = this.parse(dateStr)
		var diff = Date.now() - date.getTime();
		if (diff < this.UNITS['天']) {
			return this.humanize(diff);
		}
		var _format = function(number) {
			return (number < 10 ? ('0' + number) : number);
		};
		return date.getFullYear() + '/' + _format(date.getMonth() + 1) + '/' + _format(date.getDate()) + '-' +
			_format(date.getHours()) + ':' + _format(date.getMinutes());
	},
	parse: function(str) { //将"yyyy-mm-dd HH:MM:ss"格式的字符串，转化为一个Date对象
		var a = str.split(/[^0-9]/);
		return new Date(a[0], a[1] - 1, a[2], a[3], a[4], a[5]);
	}
};

export function now(format) {
	return moment().format(format)
}

export function getDictLabel(dicts, value) {
	if (!value) {
		return ''
	}
	if (!dicts || !dicts.length) {
		return ''
	}
	const obj = dicts.find(item => item.dictValue === value)
	if (!obj) {
		return ''
	}
	return obj.dictLabel;
}

export function getDictLabelByArray(dicts, value) {
	if (!value) {
		return ''
	}
	if (!dicts || !dicts.length) {
		return ''
	}
	const arr = dicts.filter(item => value.split(',').indexOf(item.dictValue) > -1)
	if (arr.length === 0) {
		return ''
	}
	return arr.map(item => item.dictLabel).join('、');
}

export const formatTimeText = (seconds) => {
    if (!seconds) {
        return ''
    }
	if (seconds < 0) {
		return formatTimeText(-seconds);
	}
    // 秒
    if (seconds < 60) {
        return seconds + '秒'
    }
    // 分钟
    if (seconds < 3600) {
        return `${Math.floor(seconds / 60)}分${seconds % 60}秒`
    }
    // 小时
    if (seconds < 86400) {
        const remainder = seconds % 3600;
        return `${Math.floor(seconds / 3600)}时${parseInt(seconds % 3600 / 60)}分`
    }
    // 天
    const remainder = seconds % 86400;
    return `${Math.floor(seconds / 86400)}天${parseInt(seconds % 86400 / 3600)}时`
}

export const getFileType = (fileName) => {
    if (!fileName || fileName.indexOf('.') === -1) {
		return 'txt';
	}
	const fileSuffix = fileName.substr(fileName.lastIndexOf('.') + 1).toLowerCase();
	const imgSuffix = ['png', 'jpg', 'jpeg', 'gif'];
	if (imgSuffix.indexOf(fileSuffix) > -1) {
		return 'img'
	}
	if (fileSuffix === 'doc' || fileSuffix === 'docx' ) {
		return 'doc'
	}
	if (fileSuffix === 'xls' ||  fileSuffix === 'xlsx' ) {
		return 'xls'
	}
	if (fileSuffix === 'pdf' ) {
		return 'pdf'
	}
	if (fileSuffix === 'mp3') {
		return 'mp3'
	}
	if (fileSuffix === 'mp4') {
		return 'mp4'
	}
	return 'txt';
}