refactor: storage

electron.vite.config.ts

@@ -12,7 +12,8 @@ export default defineConfig({
   renderer: {
     resolve: {
       alias: {
-        '@renderer': resolve('src/renderer/src')
+        '@renderer': resolve('src/renderer/src'),
+        '@common': resolve('src/common')
       }
     },
     plugins: [react()]

src/common/constants.ts

@@ -0,0 +1,4 @@
+export const StorageKey = {
+  THEME_SETTING: 'themeSetting',
+  RELAY_GROUPS: 'relayGroups'
+}

src/common/types.ts

@@ -24,14 +24,13 @@ export type TElectronWindow = {
       isEncryptionAvailable: () => Promise<boolean>
     }
     theme: {
-      onChange: (cb: (theme: TTheme) => void) => void
+      addChangeListener: (listener: (theme: TTheme) => void) => void
+      removeChangeListener: () => void
       current: () => Promise<TTheme>
-      themeSetting: () => Promise<TThemeSetting>
-      set: (themeSetting: TThemeSetting) => Promise<void>
     }
     storage: {
-      getRelayGroups: () => Promise<TRelayGroup[]>
+      getItem: (key: string) => Promise<string>
-      setRelayGroups: (relayGroups: TRelayGroup[]) => Promise<void>
+      setItem: (key: string, value: string) => Promise<void>
     }
     nostr: {
       login: (nsec: string) => Promise<{

src/main/index.ts

@@ -71,7 +71,7 @@ app.whenReady().then(async () => {
   const storageService = new StorageService()
   storageService.init()
 
-  const themeService = new ThemeService(storageService, sendToRenderer)
+  const themeService = new ThemeService(sendToRenderer)
   themeService.init()
 
   const nostrService = new NostrService()

src/main/services/storage.service.ts

@@ -1,42 +1,10 @@
-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[] | null {
-    return this.storage.get('relayGroups') ?? null
-  }
-
-  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 config: Record<string, string> = {}
   private writeTimer: NodeJS.Timeout | null = null
 
   constructor() {
@@ -46,11 +14,20 @@ class Storage {
     this.config = JSON.parse(json)
   }
 
-  get<K extends keyof TConfig, V extends TConfig[K]>(key: K): V | undefined {
+  init() {
-    return this.config[key] as V
+    ipcMain.handle('storage:getItem', (_, key: string) => this.getItem(key))
+    ipcMain.handle('storage:setItem', (_, key: string, value: string) => this.setItem(key, value))
   }
 
-  set<K extends keyof TConfig>(key: K, value: TConfig[K]) {
+  getItem(key: string): string | undefined {
+    const value = this.config[key]
+    // backward compatibility
+    if (value && typeof value !== 'string') return JSON.stringify(value)
+
+    return value
+  }
+
+  setItem(key: string, value: string) {
     this.config[key] = value
     if (this.writeTimer) return
 

src/main/services/theme.service.ts

@@ -1,41 +1,19 @@
-import { TThemeSetting } from '@common/types'
 import { ipcMain, nativeTheme } from 'electron'
 import { TSendToRenderer } from '../types'
-import { StorageService } from './storage.service'
 
 export class ThemeService {
-  private themeSetting: TThemeSetting = 'system'
+  constructor(private sendToRenderer: TSendToRenderer) {}
-
-  constructor(
-    private storageService: StorageService,
-    private sendToRenderer: TSendToRenderer
-  ) {}
 
   init() {
-    this.themeSetting = this.storageService.getTheme()
-
     ipcMain.handle('theme:current', () => this.getCurrentTheme())
-    ipcMain.handle('theme:themeSetting', () => this.themeSetting)
-    ipcMain.handle('theme:set', (_, theme: TThemeSetting) => this.setTheme(theme))
     nativeTheme.on('updated', () => {
-      if (this.themeSetting === 'system') {
       this.sendCurrentThemeToRenderer()
-      }
     })
   }
 
   getCurrentTheme() {
-    if (this.themeSetting === 'system') {
     return nativeTheme.shouldUseDarkColors ? 'dark' : 'light'
   }
-    return this.themeSetting
-  }
-
-  private setTheme(theme: TThemeSetting) {
-    this.themeSetting = theme
-    this.storageService.setTheme(theme)
-    this.sendCurrentThemeToRenderer()
-  }
 
   private sendCurrentThemeToRenderer() {
     this.sendToRenderer('theme:change', this.getCurrentTheme())

src/preload/index.ts

@@ -1,4 +1,4 @@
-import { TDraftEvent, TRelayGroup, TThemeSetting } from '@common/types'
+import { TDraftEvent, TTheme } from '@common/types'
 import { electronAPI } from '@electron-toolkit/preload'
 import { contextBridge, ipcRenderer } from 'electron'
 
@@ -8,19 +8,19 @@ const api = {
     isEncryptionAvailable: () => ipcRenderer.invoke('system:isEncryptionAvailable')
   },
   theme: {
-    onChange: (cb: (theme: 'dark' | 'light') => void) => {
+    addChangeListener: (listener: (theme: TTheme) => void) => {
       ipcRenderer.on('theme:change', (_, theme) => {
-        cb(theme)
+        listener(theme)
       })
     },
-    current: () => ipcRenderer.invoke('theme:current'),
+    removeChangeListener: () => {
-    themeSetting: () => ipcRenderer.invoke('theme:themeSetting'),
+      ipcRenderer.removeAllListeners('theme:change')
-    set: (themeSetting: TThemeSetting) => ipcRenderer.invoke('theme:set', themeSetting)
+    },
+    current: () => ipcRenderer.invoke('theme:current')
   },
   storage: {
-    getRelayGroups: () => ipcRenderer.invoke('storage:getRelayGroups'),
+    getItem: (key: string) => ipcRenderer.invoke('storage:getItem', key),
-    setRelayGroups: (relayGroups: TRelayGroup[]) =>
+    setItem: (key: string, value: string) => ipcRenderer.invoke('storage:setItem', key, value)
-      ipcRenderer.invoke('storage:setRelayGroups', relayGroups)
   },
   nostr: {
     login: (nsec: string) => ipcRenderer.invoke('nostr:login', nsec),

src/renderer/src/providers/ThemeProvider.tsx

@@ -1,5 +1,6 @@
 import { TTheme, TThemeSetting } from '@common/types'
 import { isElectron } from '@renderer/lib/env'
+import storage from '@renderer/services/storage.service'
 import { createContext, useContext, useEffect, useState } from 'react'
 
 type ThemeProviderProps = {
@@ -12,8 +13,10 @@ type ThemeProviderState = {
   setThemeSetting: (themeSetting: TThemeSetting) => Promise<void>
 }
 
-// web only
+async function getSystemTheme() {
-function getSystemTheme() {
+  if (isElectron(window)) {
+    return await window.api.theme.current()
+  }
   return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
 }
 
@@ -27,33 +30,28 @@ export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
 
   useEffect(() => {
     const init = async () => {
-      // electron
+      const themeSetting = await storage.getThemeSetting()
-      if (isElectron(window)) {
-        const [themeSetting, theme] = await Promise.all([
-          window.api.theme.themeSetting(),
-          window.api.theme.current()
-        ])
-        setTheme(theme)
-        setThemeSetting(themeSetting)
-
-        window.api.theme.onChange((theme) => {
-          setTheme(theme)
-        })
-      } else {
-        // web
       if (themeSetting === 'system') {
-          setTheme(getSystemTheme())
+        setTheme(await getSystemTheme())
         return
       }
       setTheme(themeSetting)
     }
-    }
 
     init()
   }, [])
 
   useEffect(() => {
-    if (themeSetting !== 'system' || isElectron(window)) return
+    if (themeSetting !== 'system') return
+
+    if (isElectron(window)) {
+      window.api.theme.addChangeListener((theme) => {
+        setTheme(theme)
+      })
+      return () => {
+        isElectron(window) && window.api.theme.removeChangeListener()
+      }
+    }
 
     const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)')
     const handleChange = (e: MediaQueryListEvent) => {
@@ -80,14 +78,10 @@ export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
   const value = {
     themeSetting: themeSetting,
     setThemeSetting: async (themeSetting: TThemeSetting) => {
-      if (isElectron(window)) {
+      await storage.setThemeSetting(themeSetting)
-        await window.api.theme.set(themeSetting)
-      } else {
-        localStorage.setItem('themeSetting', themeSetting)
-      }
       setThemeSetting(themeSetting)
       if (themeSetting === 'system') {
-        setTheme(getSystemTheme())
+        setTheme(await getSystemTheme())
         return
       }
       setTheme(themeSetting)

src/renderer/src/services/storage.service.ts

@@ -1,4 +1,5 @@
-import { TRelayGroup } from '@common/types'
+import { StorageKey } from '@common/constants'
+import { TRelayGroup, TThemeSetting } from '@common/types'
 import { isElectron } from '@renderer/lib/env'
 
 const DEFAULT_RELAY_GROUPS: TRelayGroup[] = [
@@ -15,21 +16,19 @@ const DEFAULT_RELAY_GROUPS: TRelayGroup[] = [
 ]
 
 class Storage {
-  async getRelayGroups() {
+  async getItem(key: string) {
     if (isElectron(window)) {
-      const relayGroups = await window.api.storage.getRelayGroups()
+      return window.api.storage.getItem(key)
-      return relayGroups ?? DEFAULT_RELAY_GROUPS
     } else {
-      const relayGroupsStr = localStorage.getItem('relayGroups')
+      return localStorage.getItem(key)
-      return relayGroupsStr ? (JSON.parse(relayGroupsStr) as TRelayGroup[]) : DEFAULT_RELAY_GROUPS
     }
   }
 
-  async setRelayGroups(relayGroups: TRelayGroup[]) {
+  async setItem(key: string, value: string) {
     if (isElectron(window)) {
-      return window.api.storage.setRelayGroups(relayGroups)
+      return window.api.storage.setItem(key, value)
     } else {
-      localStorage.setItem('relayGroups', JSON.stringify(relayGroups))
+      return localStorage.setItem(key, value)
     }
   }
 }
@@ -39,6 +38,7 @@ class StorageService {
 
   private initPromise!: Promise<void>
   private relayGroups: TRelayGroup[] = []
+  private themeSetting: TThemeSetting = 'system'
   private storage: Storage = new Storage()
 
   constructor() {
@@ -50,7 +50,10 @@ class StorageService {
   }
 
   async init() {
-    this.relayGroups = await this.storage.getRelayGroups()
+    const relayGroupsStr = await this.storage.getItem(StorageKey.RELAY_GROUPS)
+    this.relayGroups = relayGroupsStr ? JSON.parse(relayGroupsStr) : DEFAULT_RELAY_GROUPS
+    this.themeSetting =
+      ((await this.storage.getItem(StorageKey.THEME_SETTING)) as TThemeSetting) ?? 'system'
   }
 
   async getRelayGroups() {
@@ -60,9 +63,20 @@ class StorageService {
 
   async setRelayGroups(relayGroups: TRelayGroup[]) {
     await this.initPromise
-    await this.storage.setRelayGroups(relayGroups)
+    await this.storage.setItem(StorageKey.RELAY_GROUPS, JSON.stringify(relayGroups))
     this.relayGroups = relayGroups
   }
+
+  async getThemeSetting() {
+    await this.initPromise
+    return this.themeSetting
+  }
+
+  async setThemeSetting(themeSetting: TThemeSetting) {
+    await this.initPromise
+    await this.storage.setItem(StorageKey.THEME_SETTING, themeSetting)
+    this.themeSetting = themeSetting
+  }
 }
 
 const instance = new StorageService()