uniapp，常用工具函数

/* 处理文件路径 */
export default { //  拨打电话
    callPhone(phone) {
        uni.makePhoneCall({
            phoneNumber: phone //仅为示例
        });
    },
    // 判断对象是否包含空值
    /*
     ** @return flag
     ** @params 目标对象
     */
    paramsValidate(params) {
        let flag = true;
        for (var key in params) {
            if (params[key] != '0' && !params[key]) {
                return false; // 终止程序
            }
        }
        return flag;
    },
    // 日期2023-01-03转几小时前，刚刚文字
    timeToWords(stringTime) {
        if (stringTime) {
            // 获取当前
            var minute = 1000 * 60;
            var hour = minute * 60;
            var day = hour * 24;
            var week = day * 7;
            var month = day * 30;
            var time1 = new Date().getTime(); //当前的时间戳
            var time2 = Date.parse(new Date(stringTime)); //指定时间的时间戳
            var time = time1 - time2;

            var result = null;
            if (time < 0) {
                result = stringTime
            } else if (time / month >= 1) {
                result = parseInt(time / month) + "月前";
            } else if (time / week >= 1) {
                result = parseInt(time / week) + "周前";
            } else if (time / day >= 1) {
                result = parseInt(time / day) + "天前";
            } else if (time / hour >= 1) {
                result = parseInt(time / hour) + "小时前";
            } else if (time / minute >= 1) {
                result = parseInt(time / minute) + "分钟前";
            } else {
                result = "刚刚";
            }
            return result;
        }
    },
    // 判断是否是json格式
    isJSON(str) {
        if (typeof str == "string") {
            try {
                var obj = JSON.parse(str)
                if (typeof obj == "object" && obj) {
                    return true
                } else {
                    return false
                }
            } catch (e) {
                return false
            }
        }
    },
    // 电话号码加密
    phonePas(string, type) {
        if (string) {
            let str = string.substring(3, 7)
            return string.replace(str, '****')
        }
    },
    checkPhone(phone) {
        let check = /^(?:(?:\+|00)86)?1[3-9]\d{9}$/g.test(phone);
        return check
    },
    // 身份证校验
    checkIdNumber(idNum) {
        let c = /^\d{6}(18|19|20)\d{2}(0\d|10|11|12)([0-2]\d|30|31)\d{3}[\dXx]$/g.test(idNum);
        return c
    },
    // 字符串截取,str，需要截取的字符串，num需要从第几位截取,endStr-结尾的字符串
    substr(str, num, endStr) {
        return `${str.substring(0,num)}${endStr}`
    },
    // 判断空对象
    isEmpty(obj) {
        return Object.keys(obj).length === 0
    },
    // 年月日转为日期格式
    // 日期转换
    formatYMD(data, format = '-') {
        if (data) {
            let time1 = data.split(' ')
            let time = time1[0].replace('年', '-').replace('月', '-').replace('日', ' ')
            let arr = time.split('-')
            let y = arr[0]
            let m = arr[1] < 10 ? `0${arr[1]}` : arr[1]
            let r = arr[2] < 10 ? `0${arr[2]}` : arr[2]
            // 没有秒自动补全秒
            if (time1[1].split(':').length < 3) {
                return `${y}${format}${m}${format}${r}${time1[1]?time1[1]+':00':''}`
            }
            return `${y}${format}${m}${format}${r}${time1[1]?time1[1]:''}`
        } else {
            return null
        }
    },
    // 日期格式转年月日
    formatToYMD(data) {
        if (data) {
            let time1 = data.split(' ')
            let time = time1[0].replace('-', '年').replace('-', '月')
            let arr = time1[0].split('-')
            let y = arr[0]
            let m = arr[1] < 10 ? `${arr[1].split('0')[1]}` : arr[1]
            let enr = arr[2]
            let r = enr.split('0')[0] ? enr.split('0')[0] : enr.split('0')[1]
            return `${y}年${m}月${r}日 ${time1[1]?time1[1]:''}`
        } else {
            return null
        }
    },
    // 日期格式化
    formatDate: function(dateA, format = 'yyyy-MM-dd HH:mm:ss', splitType = "-") {
        console.log('dateA', dateA)
        const dateB = new Date(dateA).toJSON();
        const date = new Date(+new Date(dateB) + 8 * 3600 * 1000).toISOString().replace(/T/g, ' ').replace(
            /\.[\d]{3}Z/, '')
        let arr = date.split(" ")
        let dates
        switch (format) {
            case 'yyyy-MM-dd HH:mm:ss':
                dates = date
                break
            case 'yyyy-MM-dd':
                // dates = arr[0]
                dates = arr[0].replace('-', splitType).replace('-', splitType)
                break
            case 'HH:mm:ss':
                dates = arr[1]
                break
            case 'yyyy-MM-dd HH:mm':
                let arr2 = []
                arr2.push(date.split(":")[0])
                arr2.push(date.split(":")[1])
                dates = arr2.join(":")
                break
            case 'MM-dd':
                let newArr = arr[0].split('-')
                let result = []
                if (newArr.length === 3) {
                    newArr[1] < 10 ? newArr[1] = newArr[1].split('0')[1] : newArr[1]
                    newArr[2] < 10 ? newArr[2] = newArr[2].split('0')[1] : newArr[2]
                    result.push(newArr[1])
                    result.push(newArr[2])
                    dates = result.join(splitType)
                }
                break
            case 'HH:mm':
                let newArr2 = arr[1].split(':')
                let arr3 = []
                arr3.push(newArr2[0])
                arr3.push(newArr2[1])
                dates = arr3.join(':')
                break
        }
        return dates
    },
    // 获取当前月的最后一天
    getLastDay(year, month) {
        const isLeapYear = ((year % 4) == 0) && ((year % 100) != 0) || ((year % 400) == 0)
        const maxDays = [1, 3, 5, 7, 8, 10, 12]
        const middleDays = [4, 6, 9, 11]
        month = Number(month)
        if (month == 2) {
            if (isLeapYear) {
                return 29
            } else {
                return 28
            }
        } else if (maxDays.includes(month)) {
            return 31
        } else if (middleDays.includes(month)) {
            return 30
        }
    },
    // 删除对象属性值为空的属性,obj-传入的对象
    removeProperty(obj) {
        Object.keys(obj).forEach((item) => {
            if (obj[item] === '' || obj[item] === undefined || obj[item] === null || obj[item] === 'null') {
                Reflect.deleteProperty(obj,item)
            }
        })
        return obj
    },
    // base64转path
    base64ToPath(base64) {
        return new Promise(function(resolve, reject) {
            if (typeof window === 'object' && 'document' in window) {
                base64 = base64.split(',')
                var type = base64[0].match(/:(.*?);/)[1]
                var str = atob(base64[1])
                var n = str.length
                var array = new Uint8Array(n)
                while (n--) {
                    array[n] = str.charCodeAt(n)
                }
                return resolve((window.URL || window.webkitURL).createObjectURL(new Blob([array], {
                    type: type
                })))
            }
            var extName = base64.match(/data\:\S+\/(\S+);/)
            if (extName) {
                extName = extName[1]
            } else {
                reject(new Error('base64 error'))
            }
            var fileName = Date.now() + '.' + extName
            if (typeof plus === 'object') {
                var bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
                bitmap.loadBase64Data(base64, function() {
                    var filePath = '_doc/uniapp_temp/' + fileName
                    bitmap.save(filePath, {}, function() {
                        bitmap.clear()
                        resolve(filePath)
                    }, function(error) {
                        bitmap.clear()
                        reject(error)
                    })
                }, function(error) {
                    bitmap.clear()
                    reject(error)
                })
                return
            }
            if (typeof wx === 'object' && wx.canIUse('getFileSystemManager')) {
                var filePath = wx.env.USER_DATA_PATH + '/' + fileName
                wx.getFileSystemManager().writeFile({
                    filePath: filePath,
                    data: base64.replace(/^data:\S+\/\S+;base64,/, ''),
                    encoding: 'base64',
                    success: function() {
                        resolve(filePath)
                    },
                    fail: function(error) {
                        reject(error)
                    }
                })
                return
            }
            reject(new Error('not support'))
        })
    }

}

function getLocalFilePath(path) {
    if (path.indexOf('_www') === 0 || path.indexOf('_doc') === 0 || path.indexOf('_documents') === 0 || path.indexOf(
            '_downloads') === 0) {
        return path
    }
    if (path.indexOf('file://') === 0) {
        return path
    }
    if (path.indexOf('/storage/emulated/0/') === 0) {
        return path
    }
    if (path.indexOf('/') === 0) {
        var localFilePath = plus.io.convertAbsoluteFileSystem(path)
        if (localFilePath !== path) {
            return localFilePath
        } else {
            path = path.substr(1)
        }
    }
    return '_www/' + path
}

/* base64转文件路径 */
export function base64ToPath(base64) {
    return new Promise(function(resolve, reject) {
        if (typeof window === 'object' && 'document' in window) {
            base64 = base64.split(',')
            var type = base64[0].match(/:(.*?);/)[1]
            var str = atob(base64[1])
            var n = str.length
            var array = new Uint8Array(n)
            while (n--) {
                array[n] = str.charCodeAt(n)
            }
            return resolve((window.URL || window.webkitURL).createObjectURL(new Blob([array], {
                type: type
            })))
        }
        var extName = base64.match(/data\:\S+\/(\S+);/)
        if (extName) {
            extName = extName[1]
        } else {
            reject(new Error('base64 error'))
        }
        var fileName = Date.now() + '.' + extName
        if (typeof plus === 'object') {
            var bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
            bitmap.loadBase64Data(base64, function() {
                var filePath = '_doc/uniapp_temp/' + fileName
                bitmap.save(filePath, {}, function() {
                    bitmap.clear()
                    resolve(filePath)
                }, function(error) {
                    bitmap.clear()
                    reject(error)
                })
            }, function(error) {
                bitmap.clear()
                reject(error)
            })
            return
        }
        if (typeof wx === 'object' && wx.canIUse('getFileSystemManager')) {
            var filePath = wx.env.USER_DATA_PATH + '/' + fileName
            wx.getFileSystemManager().writeFile({
                filePath: filePath,
                data: base64.replace(/^data:\S+\/\S+;base64,/, ''),
                encoding: 'base64',
                success: function() {
                    resolve(filePath)
                },
                fail: function(error) {
                    reject(error)
                }
            })
            return
        }
        reject(new Error('not support'))
    })
}