feat: basic browsing (#1)

src/main/services/storage.service.ts

@@ -0,0 +1,85 @@
+import { TConfig, TRelayGroup, TThemeSetting } from '@common/types'
+import { app, ipcMain } from 'electron'
+import { existsSync, readFileSync, writeFileSync } from 'fs'
+import path from 'path'
+
+export class StorageService {
+  private storage: Storage
+
+  constructor() {
+    this.storage = new Storage()
+  }
+
+  init() {
+    ipcMain.handle('storage:getRelayGroups', () => this.getRelayGroups())
+    ipcMain.handle('storage:setRelayGroups', (_, relayGroups: TRelayGroup[]) =>
+      this.setRelayGroups(relayGroups)
+    )
+  }
+
+  getRelayGroups(): TRelayGroup[] {
+    return (
+      this.storage.get('relayGroups') ?? [
+        {
+          groupName: 'Global',
+          relayUrls: [
+            'wss://relay.damus.io/',
+            'wss://nos.lol/',
+            'wss://nostr.mom/',
+            'wss://relay.primal.net/'
+          ],
+          isActive: true
+        }
+      ]
+    )
+  }
+
+  setRelayGroups(relayGroups: TRelayGroup[]) {
+    this.storage.set('relayGroups', relayGroups)
+  }
+
+  getTheme() {
+    return this.storage.get('theme') ?? 'system'
+  }
+
+  setTheme(theme: TThemeSetting) {
+    this.storage.set('theme', theme)
+  }
+}
+
+class Storage {
+  private path: string
+  private config: TConfig
+  private writeTimer: NodeJS.Timeout | null = null
+
+  constructor() {
+    this.path = path.join(app.getPath('userData'), 'config.json')
+    this.checkConfigFile(this.path)
+    const json = readFileSync(this.path, 'utf-8')
+    this.config = JSON.parse(json)
+  }
+
+  get<K extends keyof TConfig, V extends TConfig[K]>(key: K): V | undefined {
+    return this.config[key] as V
+  }
+
+  set<K extends keyof TConfig>(key: K, value: TConfig[K]) {
+    this.config[key] = value
+    if (this.writeTimer) return
+
+    this.writeTimer = setTimeout(() => {
+      this.writeTimer = null
+      writeFileSync(this.path, JSON.stringify(this.config))
+    }, 1000)
+  }
+
+  private checkConfigFile(path: string) {
+    try {
+      if (!existsSync(path)) {
+        writeFileSync(path, '{}')
+      }
+    } catch (err) {
+      console.error(err)
+    }
+  }
+}