107 lines
3.4 KiB
JavaScript
Executable File
107 lines
3.4 KiB
JavaScript
Executable File
const EMPTY32BYTES = String('').padStart(64, '0');
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self.addEventListener('install', (event) => {
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event.waitUntil(self.skipWaiting()); // Activate worker immediately
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});
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self.addEventListener('activate', (event) => {
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event.waitUntil(self.clients.claim()); // Become available to all pages
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});
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// Event listener for messages from clients
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self.addEventListener('message', async (event) => {
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const data = event.data;
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console.log(data);
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if (data.type === 'SCAN') {
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try {
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const myProcessesId = data.payload;
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if (myProcessesId && myProcessesId.length != 0) {
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const toDownload = await scanMissingData(myProcessesId);
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if (toDownload.length != 0) {
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console.log('Sending TO_DOWNLOAD message');
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event.source.postMessage({ type: 'TO_DOWNLOAD', data: toDownload});
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}
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} else {
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event.source.postMessage({ status: 'error', message: 'Empty lists' });
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}
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} catch (error) {
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event.source.postMessage({ status: 'error', message: error.message });
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}
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} else if (data.type === 'ADD_OBJECT') {
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try {
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const { storeName, object, key } = data.payload;
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const db = await openDatabase();
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const tx = db.transaction(storeName, 'readwrite');
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const store = tx.objectStore(storeName);
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if (key) {
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await store.put(object, key);
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} else {
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await store.put(object);
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}
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event.ports[0].postMessage({ status: 'success', message: '' });
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} catch (error) {
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event.ports[0].postMessage({ status: 'error', message: error.message });
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}
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} else if (data.type === 'BATCH_WRITING') {
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const { storeName, objects } = data.payload;
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const db = await openDatabase();
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const tx = db.transaction(storeName, 'readwrite');
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const store = tx.objectStore(storeName);
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for (const { key, object } of objects) {
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if (key) {
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await store.put(object, key);
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} else {
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await store.put(object);
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}
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}
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await tx.done;
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}
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});
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async function scanMissingData(processesToScan) {
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console.log('Scanning for missing data...');
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const myProcesses = await getProcesses(processesToScan);
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let toDownload = new Set();
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// Iterate on each process
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if (myProcesses && myProcesses.length != 0) {
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for (const process of myProcesses) {
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// Iterate on states
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const firstState = process.states[0];
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const processId = firstState.commited_in;
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for (const state of process.states) {
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if (state.state_id === EMPTY32BYTES) continue;
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// iterate on pcd_commitment
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for (const [field, hash] of Object.entries(state.pcd_commitment)) {
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// Skip public fields
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if (state.public_data[field] !== undefined || field === 'roles') continue;
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// Check if we have the data in db
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const existingData = await getBlob(hash);
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if (!existingData) {
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toDownload.add(hash);
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// We also add an entry in diff, in case it doesn't already exist
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await addDiff(processId, state.state_id, hash, state.roles, field);
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} else {
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// We remove it if we have it in the set
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if (toDownload.delete(hash)) {
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console.log(`Removing ${hash} from the set`);
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}
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}
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}
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}
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}
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}
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console.log('[Service Worker] Scan complete:', { toDownload: toDownload.size, diffsToCreate: diffsToCreate.length });
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return {
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toDownload: Array.from(toDownload),
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diffsToCreate: diffsToCreate
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};
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}
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