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Fix scheduling of data fetch, do it daily at 7am instead of every 24h after launching the server.

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This commit is contained in:
Mario Zechner 2023-06-01 14:59:02 +02:00
parent 8c202de9a6
commit 1fec42bfe1
1 changed files with 53 additions and 31 deletions
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84
index.js
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@ -2,44 +2,66 @@ const fs = require("fs");
const analysis = require("./analysis");
function copyItemsToSite(dataDir) {
fs.copyFileSync(`${dataDir}/latest-canonical.json`, `site/latest-canonical.json`);
const items = JSON.parse(fs.readFileSync(`${dataDir}/latest-canonical.json`));
for (const store of analysis.STORE_KEYS) {
const storeItems = items.filter(item => item.store === store);
fs.writeFileSync(`site/latest-canonical.${store}.compressed.json`, JSON.stringify(analysis.compress(storeItems)));
}
fs.copyFileSync(`${dataDir}/latest-canonical.json`, `site/latest-canonical.json`);
const items = JSON.parse(fs.readFileSync(`${dataDir}/latest-canonical.json`));
for (const store of analysis.STORE_KEYS) {
const storeItems = items.filter(item => item.store === store);
fs.writeFileSync(`site/latest-canonical.${store}.compressed.json`, JSON.stringify(analysis.compress(storeItems)));
}
}
function scheduleFunction(hour, minute, second, func) {
const now = new Date();
const scheduledTime = new Date();
scheduledTime.setHours(hour);
scheduledTime.setMinutes(minute);
scheduledTime.setSeconds(second);
if (now > scheduledTime) {
scheduledTime.setDate(scheduledTime.getDate() + 1);
}
const delay = scheduledTime.getTime() - now.getTime();
console.log("Scheduling next function call: " + scheduledTime.toString());
setTimeout(async () => {
await func();
scheduleFunction(hour, minute, second, func);
}, delay);
}
(async () => {
const dataDir = 'data';
const dataDir = 'data';
if (!fs.existsSync(dataDir)) {
fs.mkdirSync(dataDir)
}
if (!fs.existsSync(dataDir)) {
fs.mkdirSync(dataDir)
}
if (fs.existsSync(`${dataDir}/latest-canonical.json`)) {
copyItemsToSite(dataDir);
analysis.updateData(dataDir, (_newItems) => {
copyItemsToSite(dataDir);
if (fs.existsSync(`${dataDir}/latest-canonical.json`)) {
copyItemsToSite(dataDir);
analysis.updateData(dataDir, (_newItems) => {
copyItemsToSite(dataDir);
});
} else {
await analysis.updateData(dataDir)
copyItemsToSite(dataDir);
}
scheduleFunction(7, 0, 0, async () => {
items = await analysis.updateData(dataDir)
copyItemsToSite(dataDir);
});
} else {
await analysis.updateData(dataDir)
copyItemsToSite(dataDir);
}
setInterval(async () => {
items = await analysis.updateData(dataDir)
copyItemsToSite(dataDir);
}, 1000 * 60 * 60 * 24);
const express = require('express')
const compression = require('compression');
const app = express()
const port = process?.argv?.[2] ?? 3000
const express = require('express')
const compression = require('compression');
const app = express()
const port = process?.argv?.[2] ?? 3000
app.use(compression());
app.use(express.static('site'));
app.use(compression());
app.use(express.static('site'));
app.listen(port, () => {
console.log(`Example app listening on port ${port}`)
})
app.listen(port, () => {
console.log(`Example app listening on port ${port}`)
})
})();