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tasks.js
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const Schedule = require('node-schedule');
const User = require('./models/User');
const Package = require('./models/Package');
const QueryApi = require('./queryapi');
const FirebaseApi = require('./firebaseapi');
async function queryUsers(users) {
return new Promise(async (resolve, reject) => {
for (let i = 0; i < users.length; i++) {
let target = users[i].deviceToken;
let subscribes = users[i].subscribes;
for (let j = 0; j < subscribes.length; j++) {
let id = subscribes[j];
let com = null;
if (id.indexOf('+') !== -1) {
com = id.substr(id.indexOf('+') + 1);
id = id.substr(0, id.indexOf('+'));
}
let history = (await Package.find({id: id}).exec())[0];
let result = await QueryApi.queryPackage(id, com);
if (result.statusCode == 200) {
console.log(`Push user: ${target}, package id: ${id}, data: ${JSON.stringify(result)}`);
if (history) {
result._id = history._id;
}
if (!history || (history && result.data.length > history.data.length)) {
FirebaseApi.pushPackage(target, result)
}
if (history) {
history.data = result.data;
history.state = result.state;
history.isChecked = result.isChecked;
history.save()
} else if (result !== null) {
result.save()
}
} else {
console.log(`Package id: ${id} error, ignore it.`);
}
}
}
resolve(true)
})
}
function findUserAndQueryAll() {
User.find(function (err, res) {
if (err) {
console.log('Cannot read user db. ' + err.message);
} else {
console.log(`Start check ${res.length} user(s). Package counts: ${
res.map(item => item.subscribes.length).reduce((t, next) => `${t}, ${next}`)
}`);
if (res && res instanceof Array) {
queryUsers(res);
}
}
})
}
function scheduleQueryTask() {
let rule = new Schedule.RecurrenceRule();
rule.minute = [0, 10, 20, 30, 40, 50];
Schedule.scheduleJob(rule, findUserAndQueryAll);
}
exports.scheduleQueryTask = scheduleQueryTask;
exports.findUserAndQueryAll = findUserAndQueryAll;
exports.queryUsers = queryUsers;