[TEST] add data sync

src/preload.js

@@ -16,6 +16,13 @@ let openWithCb = null
 ipcRenderer.on('openwith:file', (e, openPath) => {
   if (openWithCb) openWithCb(openPath)
 })
+
+// LAN sync progress: same single-slot rule as the import counter, only one
+// sync can run at a time anyway.
+let lanSyncProgressCb = null
+ipcRenderer.on('lansync:progress', (e, data) => {
+  if (lanSyncProgressCb) lanSyncProgressCb(data)
+})
 const fs = require('fs')
 const path = require('path')
 
@@ -77,5 +84,16 @@ contextBridge.exposeInMainWorld('plwl', {
   onImportProgress: cb => {
     importProgressCb = cb
   },
-  onGamesChanged: cb => ipcRenderer.on('games:changed', () => cb())
+  onGamesChanged: cb => ipcRenderer.on('games:changed', () => cb()),
+  lansyncGet: () => ipcRenderer.invoke('lansync:get'),
+  lansyncDevices: () => ipcRenderer.invoke('lansync:devices'),
+  lansyncRerollDeviceId: () => ipcRenderer.invoke('lansync:rerollDeviceId'),
+  lansyncRerollSyncCode: () => ipcRenderer.invoke('lansync:rerollSyncCode'),
+  lansyncForget: id => ipcRenderer.invoke('lansync:forget', id),
+  lansyncSync: payload => ipcRenderer.invoke('lansync:sync', payload),
+  onLanSyncDevices: cb => ipcRenderer.on('lansync:devices', (e, data) => cb(data)),
+  onLanSyncProgress: cb => {
+    lanSyncProgressCb = cb
+  },
+  onLanSyncApplied: cb => ipcRenderer.on('lansync:applied', (e, data) => cb(data))
 })