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'use strict';
exports.main = async (event, context) => {
/**
* 检测升级 使用说明
* 上传包:
* 1. 根据传参,先检测传参是否完整,appid appVersion wgtVersion 必传
* 2. 先从数据库取出所有该平台(从上下文读取平台信息,默认 Andriod)的所有线上发行更新
* 3. 再从所有线上发行更新中取出版本最大的一版。如果可以,尽量先检测wgt的线上发行版更新
* 4. 使用上步取出的版本包的版本号 和传参 appVersion、wgtVersion 来检测是否有更新,必须同时大于这两项,否则返回暂无更新
* 5. 如果库中 wgt包 版本大于传参 appVersion,但是不满足 min_uni_version < appVersion,则不会使用wgt更新,会接着判断库中 app包version 是否大于 appVersion
*/
let {
appid,
appVersion,
wgtVersion,
} = event;
const platform_Android = 'Android';
const platform_iOS = 'iOS';
const package_app = 'native_app';
const package_wgt = 'wgt';
const app_version_db_name = 'opendb-app-versions'
let platform = platform_Android;
// 云函数URL化请求
if (event.headers) {
let body;
try {
if (event.httpMethod.toLocaleLowerCase() === 'get') {
body = event.queryStringParameters;
} else {
body = JSON.parse(event.body);
}
} catch (e) {
return {
code: 500,
msg: '请求错误'
};
}
appid = body.appid;
appVersion = body.appVersion;
wgtVersion = body.wgtVersion;
platform = /iPhone|iPad/.test(event.headers) ? platform_iOS : platform_Android;
} else if (context.OS) {
platform = context.OS === 'android'
? platform_Android
: context.OS === 'ios'
? platform_iOS
: platform_Android;
}
if (appid && appVersion && wgtVersion && platform) {
const collection = uniCloud.database().collection(app_version_db_name);
const record = await collection.where({
appid,
platform,
stable_publish: true
})
.orderBy('create_date', 'desc')
.get();
if (record && record.data && record.data.length > 0) {
const appVersionInDb = record.data.find(item => item.type === package_app) || {};
const wgtVersionInDb = record.data.find(item => item.type === package_wgt) || {};
const hasAppPackage = !!Object.keys(appVersionInDb).length;
const hasWgtPackage = !!Object.keys(wgtVersionInDb).length;
// 取两个版本中版本号最大的包,版本一样,使用wgt包
let stablePublishDb = hasAppPackage
? hasWgtPackage
? compare(wgtVersionInDb.version, appVersionInDb.version) >= 0
? wgtVersionInDb
: appVersionInDb
: appVersionInDb
: wgtVersionInDb;
const {
version,
min_uni_version
} = stablePublishDb;
// 库中的version必须满足同时大于appVersion和wgtVersion才行,因为上次更新可能是wgt更新
const appUpdate = compare(version, appVersion) === 1; // app包可用更新
const wgtUpdate = compare(version, wgtVersion) === 1; // wgt包可用更新
if (Object.keys(stablePublishDb).length && appUpdate && wgtUpdate) {
// 判断是否可用wgt更新
if (min_uni_version && compare(min_uni_version, appVersion) < 1) {
return {
code: 101,
message: 'wgt更新',
...stablePublishDb
};
} else if (hasAppPackage && compare(appVersionInDb.version, appVersion) === 1) {
return {
code: 102,
message: '整包更新',
...appVersionInDb
};
}
}
return {
code: 0,
message: '当前版本已经是最新的,不需要更新'
};
}
return {
code: -101,
message: '暂无更新或检查appid是否填写正确'
};
}
return {
code: -102,
message: '请检查传参是否填写正确'
};
};
/**
* 对比版本号,如需要,请自行修改判断规则
* 支持比对 ("3.0.0.0.0.1.0.1", "3.0.0.0.0.1") ("3.0.0.1", "3.0") ("3.1.1", "3.1.1.1") 之类的
* @param {Object} v1
* @param {Object} v2
* v1 > v2 return 1
* v1 < v2 return -1
* v1 == v2 return 0
*/
function compare(v1 = '0', v2 = '0') {
v1 = String(v1).split('.')
v2 = String(v2).split('.')
const minVersionLens = Math.min(v1.length, v2.length);
let result = 0;
for (let i = 0; i < minVersionLens; i++) {
const curV1 = Number(v1[i])
const curV2 = Number(v2[i])
if (curV1 > curV2) {
result = 1
break;
} else if(curV1 < curV2) {
result = -1
break;
}
}
if (result === 0 && (v1.length !== v2.length)) {
const v1BiggerThenv2 = v1.length > v2.length;
const maxLensVersion = v1BiggerThenv2 ? v1 : v2;
for (let i = minVersionLens; i < maxLensVersion.length; i++) {
const curVersion = Number(maxLensVersion[i])
if (curVersion > 0) {
v1BiggerThenv2 ? result = 1 : result = -1
break;
}
}
}
return result;
}