emergency metadata recovery

src/ui/App.tsx

@@ -206,6 +206,7 @@ class App extends React.Component<IProps, IState> {
           // Options menu
           this.state.optionsOpen ? (
             <Options
+              downloadManager={downloadHandler}
               closeFn={() => this.setState({ optionsOpen: !this.state.optionsOpen })}
             />
           ) : null

src/ui/components/menu/Options.tsx

@@ -12,9 +12,12 @@ import * as server from '../../../utils/server'
 
 import './Options.css'
 import BigButton from '../common/BigButton'
+import DownloadHandler from '../../../utils/download'
+import * as meta from '../../../utils/metadata'
 
 interface IProps {
   closeFn: () => void;
+  downloadManager: DownloadHandler;
 }
 
 interface IState {
@@ -62,6 +65,7 @@ export default class Options extends React.Component<IProps, IState> {
     this.toggleGrasscutterWithGame = this.toggleGrasscutterWithGame.bind(this)
     this.setCustomBackground = this.setCustomBackground.bind(this)
     this.toggleEncryption = this.toggleEncryption.bind(this)
+    this.restoreMetadata = this.restoreMetadata.bind(this)
   }
 
   async componentDidMount() {
@@ -190,6 +194,11 @@ export default class Options extends React.Component<IProps, IState> {
     })
   }
 
+  async restoreMetadata() {
+    console.log(this.props)
+    await meta.restoreMetadata(this.props.downloadManager)
+  }
+
   render() {
     return (
       <Menu closeFn={this.props.closeFn} className="Options" heading="Options">
@@ -201,6 +210,16 @@ export default class Options extends React.Component<IProps, IState> {
             <DirInput onChange={this.setGameExecutable} value={this.state?.game_install_path} extensions={['exe']} />
           </div>
         </div>
+        <div className="OptionSection" id="menuOptionsContainermetaDownload">
+          <div className="OptionLabel" id="menuOptionsLabelmetaDownload">
+            <Tr text="options.recover_metadata" />
+          </div>
+          <div className="OptionValue" id="menuOptionsButtonmetaDownload">
+            <BigButton onClick={this.restoreMetadata} id="metaDownload">
+              <Tr text='components.download' />
+            </BigButton>
+          </div>
+        </div>
         {
           this.state.swag && (
             <div className='OptionSection' id="menuOptionsContainerAkebi">

src/utils/metadata.ts

@@ -1,6 +1,7 @@
 import { invoke } from '@tauri-apps/api'
 import { dataDir } from '@tauri-apps/api/path'
 import { getConfig } from './configuration'
+import DownloadHandler from './download'
 import { getGameExecutable, getGameFolder } from './game'
 
 export async function patchMetadata() {
@@ -149,7 +150,11 @@ export async function unpatchGame() {
     path2: await getGameMetadataPath() + '\\global-metadata.dat'
   })
 
-  if (!metaPatched) {
+  const metaExists = await invoke('dir_exists', {
+    path: await getGameMetadataPath() + '\\global-metadata.dat'
+  })
+
+  if (!metaPatched && metaExists) {
     // Game isn't patched
     return true
   }
@@ -177,4 +182,51 @@ export async function getGameMetadataPath() {
 
 export async function getBackupMetadataPath() {
   return await dataDir() + 'cultivation\\metadata'
+}
+
+export async function globalMetadataLink() {
+  const versionAPIUrl = 'https://sdk-os-static.mihoyo.com/hk4e_global/mdk/launcher/api/resource?channel_id=1&key=gcStgarh&launcher_id=10&sub_channel_id=0'
+
+  // Get versions from API
+  const versions = JSON.parse(await invoke('web_get', {
+    url: versionAPIUrl
+  }))
+  
+  if (!versions || versions.retcode !== 0) {
+    console.log('Failed to get versions from API')
+    return null
+  }
+
+  // Get latest version
+  const latest = versions.data.game.latest
+
+  return latest.decompressed_path as string + '/GenshinImpact_Data/Managed/Metadata/global-metadata.dat'
+}
+
+export async function restoreMetadata(manager: DownloadHandler) {
+  const backupExists = await invoke('dir_exists', {
+    path: await getBackupMetadataPath() + '\\global-metadata-unpatched.dat'
+  })
+
+  if (!backupExists) {
+    console.log('No backup found! Replacing with global metadata link')
+
+    const metaLink = await globalMetadataLink()
+
+    if (!metaLink) {
+      console.log('Coudl not get global metadata link!')
+      return false
+    }
+    
+    // Download the file
+    manager.addDownload(metaLink, await getBackupMetadataPath() + '\\global-metadata-unpatched.dat', () => {
+      unpatchGame()
+    })
+  }
+
+  console.log('Restoring backedup metadata')
+
+  await unpatchGame()
+
+  return true
 }