migrated from redux to recoil

frontend/src/atoms/downloadTemplate.ts

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+import { atom } from 'recoil'
+
+export const downloadTemplateState = atom({
+  key: 'downloadTemplateState',
+  default: localStorage.getItem('lastDownloadTemplate') ?? '',
+  effects: [
+    ({ onSet }) => onSet(e => localStorage.setItem('lastDownloadTemplate', e))
+  ]
+})

frontend/src/atoms/downloads.ts

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+import { atom } from 'recoil'
+import { RPCResult } from '../types'
+
+export const activeDownloadsState = atom<RPCResult[] | undefined>({
+  key: 'activeDownloadsState',
+  default: undefined
+})

frontend/src/atoms/format.ts

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+import { atom } from 'recoil'
+import { DLMetadata } from '../types'
+
+export const selectedFormatState = atom<Partial<DLMetadata>>({
+  key: 'selectedFormatState',
+  default: {},
+})

frontend/src/atoms/i18n.ts

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+import { selector } from 'recoil'
+import I18nBuilder from '../lib/intl'
+import { languageState } from './settings'
+
+export const i18nBuilderState = selector({
+  key: 'i18nBuilderState',
+  get: ({ get }) => new I18nBuilder(get(languageState)),
+  dangerouslyAllowMutability: true,
+})

frontend/src/atoms/rpc.ts

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+import { selector } from 'recoil'
+import { RPCClient } from '../lib/rpcClient'
+import { rpcHTTPEndpoint, rpcWebSocketEndpoint } from './settings'
+
+export const rpcClientState = selector({
+  key: 'rpcClientState',
+  get: ({ get }) =>
+    new RPCClient(get(rpcHTTPEndpoint), get(rpcWebSocketEndpoint)),
+  set: ({ get }) =>
+    new RPCClient(get(rpcHTTPEndpoint), get(rpcWebSocketEndpoint)),
+  dangerouslyAllowMutability: true,
+})

frontend/src/atoms/settings.ts

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+import { atom, selector } from 'recoil'
+
+export type Language =
+  | 'english'
+  | 'chinese'
+  | 'russian'
+  | 'italian'
+  | 'spanish'
+  | 'korean'
+  | 'japanese'
+  | 'catalan'
+  | 'ukrainian'
+  | 'polish'
+
+export const languages = [
+  'english',
+  'chinese',
+  'russian',
+  'italian',
+  'spanish',
+  'korean',
+  'japanese',
+  'catalan',
+  'ukrainian',
+  'polish',
+] as const
+
+export type Theme = 'light' | 'dark'
+
+export interface SettingsState {
+  serverAddr: string
+  serverPort: number
+  language: Language
+  theme: Theme
+  cliArgs: string
+  formatSelection: boolean
+  fileRenaming: boolean
+  pathOverriding: boolean
+  enableCustomArgs: boolean
+  listView: boolean
+}
+
+export const languageState = atom<Language>({
+  key: 'languageState',
+  default: localStorage.getItem('language') as Language ?? 'english',
+  effects: [
+    ({ onSet }) =>
+      onSet(l => localStorage.setItem('language', l.toString()))
+  ]
+})
+
+export const themeState = atom<Theme>({
+  key: 'themeStateState',
+  default: localStorage.getItem('theme') as Theme ?? 'system',
+  effects: [
+    ({ onSet }) =>
+      onSet(l => localStorage.setItem('theme', l.toString()))
+  ]
+})
+
+export const serverAddressState = atom<string>({
+  key: 'serverAddressState',
+  default: localStorage.getItem('server-addr') ?? window.location.hostname,
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('server-addr', a.toString()))
+  ]
+})
+
+export const serverPortState = atom<number>({
+  key: 'serverPortState',
+  default: Number(localStorage.getItem('server-port')) ??
+    Number(window.location.port),
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('server-port', a.toString()))
+  ]
+})
+
+export const latestCliArgumentsState = atom<string>({
+  key: 'latestCliArgumentsState',
+  default: localStorage.getItem('cli-args') ?? '',
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('cli-args', a.toString()))
+  ]
+})
+
+export const formatSelectionState = atom({
+  key: 'formatSelectionState',
+  default: localStorage.getItem('format-selection') === "true",
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('format-selection', a.toString()))
+  ]
+})
+
+export const fileRenamingState = atom({
+  key: 'fileRenamingState',
+  default: localStorage.getItem('file-renaming') === "true",
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('file-renaming', a.toString()))
+  ]
+})
+
+export const pathOverridingState = atom({
+  key: 'pathOverridingState',
+  default: localStorage.getItem('path-overriding') === "true",
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('path-overriding', a.toString()))
+  ]
+})
+
+export const enableCustomArgsState = atom({
+  key: 'enableCustomArgsState',
+  default: localStorage.getItem('enable-custom-args') === "true",
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('enable-custom-args', a.toString()))
+  ]
+})
+
+export const listViewState = atom({
+  key: 'listViewState',
+  default: localStorage.getItem('listview') === "true",
+  effects: [
+    ({ onSet }) =>
+      onSet(a => localStorage.setItem('listview', a.toString()))
+  ]
+})
+
+export const serverAddressAndPortState = selector({
+  key: 'serverAddressAndPortState',
+  get: ({ get }) => `${get(serverAddressState)}:${get(serverPortState)}`
+})
+
+export const serverURL = selector({
+  key: 'serverURL',
+  get: ({ get }) =>
+    `${window.location.protocol}//${get(serverAddressState)}:${get(serverPortState)}`
+})
+
+export const rpcWebSocketEndpoint = selector({
+  key: 'rpcWebSocketEndpoint',
+  get: ({ get }) => {
+    const proto = window.location.protocol === 'https:' ? 'wss:' : 'ws:'
+    return `${proto}//${get(serverAddressAndPortState)}/rpc/ws`
+  }
+})
+
+export const rpcHTTPEndpoint = selector({
+  key: 'rpcHTTPEndpoint',
+  get: ({ get }) => {
+    const proto = window.location.protocol
+    return `${proto}//${get(serverAddressAndPortState)}/rpc/http`
+  }
+})
+
+export const settingsState = selector<SettingsState>({
+  key: 'settingsState',
+  get: ({ get }) => ({
+    serverAddr: get(serverAddressState),
+    serverPort: get(serverPortState),
+    language: get(languageState),
+    theme: get(themeState),
+    cliArgs: get(latestCliArgumentsState),
+    formatSelection: get(formatSelectionState),
+    fileRenaming: get(fileRenamingState),
+    pathOverriding: get(pathOverridingState),
+    enableCustomArgs: get(enableCustomArgsState),
+    listView: get(listViewState),
+  })
+})

frontend/src/atoms/status.ts

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+import { atom, selector } from 'recoil'
+
+type StatusState = {
+  connected: boolean,
+  updated: boolean,
+  downloading: boolean,
+  freeSpace: number,
+}
+
+
+export const connectedState = atom({
+  key: 'connectedState',
+  default: false
+})
+
+export const updatedBinaryState = atom({
+  key: 'updatedBinaryState',
+  default: false
+})
+
+export const isDownloadingState = atom({
+  key: 'isDownloadingState',
+  default: false
+})
+
+export const freeSpaceBytesState = atom({
+  key: 'freeSpaceBytesState',
+  default: 0
+})
+
+export const statusState = selector<StatusState>({
+  key: 'statusState',
+  get: ({ get }) => ({
+    connected: get(connectedState),
+    updated: get(updatedBinaryState),
+    downloading: get(isDownloadingState),
+    freeSpace: get(freeSpaceBytesState),
+  })
+})

frontend/src/atoms/toast.ts

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+import { AlertColor } from '@mui/material'
+import { atom } from 'recoil'
+
+type Toast = {
+  open: boolean,
+  message: string
+  autoClose: boolean
+  createdAt: number,
+  severity?: AlertColor
+}
+
+export const toastListState = atom<Toast[]>({
+  key: 'toastListState',
+  default: [],
+})