syncthing-hooks/index.js
2020-03-18 20:01:47 +02:00

63 lines
1.8 KiB
JavaScript

const { fetchNewEvents } = require('./api');
const { collectHooks } = require('./hooks');
require('dotenv').config();
const state = {
seenIds: null,
mostRecentEventForFolder: null,
};
const getMostRecentEvents = (events, monitoredFolders) => {
const mostRecentEventForFolder = events
.filter(x => x.data && x.data.folder)
.filter(x => monitoredFolders.has(x.data.folder))
.reduce(
(acc, x) => {
const date = new Date(x.time);
const existingDate = acc[x.data.folder];
acc[x.data.folder] =
existingDate && existingDate > date ? existingDate : date;
return acc;
},
state.mostRecentEventForFolder
? { ...state.mostRecentEventForFolder }
: {}
);
state.mostRecentEventForFolder = mostRecentEventForFolder;
return mostRecentEventForFolder;
};
const convertRecentEventDatesToDelta = () => {
const now = new Date().getTime();
return Object.entries(state.mostRecentEventForFolder)
.map(([folder, date]) => [folder, now - date.getTime()])
.reduce((acc, [path, delta]) => {
acc[path] = delta;
return acc;
}, {});
};
setInterval(async () => {
const { events, seenIds } = await fetchNewEvents(state.seenIds);
const hooks = await collectHooks();
const monitoredFolders = new Set(hooks.map(x => x.folder));
const deltaForFolders =
getMostRecentEvents(events, monitoredFolders) &&
convertRecentEventDatesToDelta();
hooks
.filter(x => deltaForFolders[x.folder])
.forEach(hook => {
const timeToWait = hook.time - deltaForFolders[hook.folder];
console.log(timeToWait);
if (timeToWait < 0) {
delete state.mostRecentEventForFolder[hook.folder];
console.log('running hook', hook);
}
});
console.warn(deltaForFolders);
state.seenIds = seenIds;
}, 2000);