refactor(ocr): improve type safety and config handling in useOcrProvider

- Replace dynamic provider lookup with type-safe registry pattern
- Add separate config management for each provider type
- Remove unused imports and simplify provider fallback logic

src/renderer/src/hooks/ocr/useOcrProvider.ts

@@ -1,35 +1,106 @@
+import { usePreference } from '@data/hooks/usePreference'
 import { loggerService } from '@logger'
-import { updateOcrProviderConfig } from '@renderer/store/ocr'
-import type { OcrProviderConfig } from '@renderer/types'
+import type {
+  BuiltinOcrProviderId,
+  OcrOvConfig,
+  OcrOvProvider,
+  OcrPpocrConfig,
+  OcrPpocrProvider,
+  OcrSystemConfig,
+  OcrSystemProvider,
+  OcrTesseractConfig,
+  OcrTesseractProvider
+} from '@renderer/types'
 import { BUILTIN_OCR_PROVIDERS_MAP } from '@shared/config/ocr'
-import { useTranslation } from 'react-i18next'
-import { useDispatch } from 'react-redux'
-
-import { useOcrProviders } from './useOcrProviders'
+import { merge } from 'lodash'
+import { useCallback, useMemo } from 'react'
 
 const logger = loggerService.withContext('useOcrProvider')
 
-export const useOcrProvider = (id: string) => {
-  const { t } = useTranslation()
-  const dispatch = useDispatch()
-  const { providers } = useOcrProviders()
-  let provider = providers.find((p) => p.id === id)
+const PROVIDER_REGISTRY = {
+  ovocr: null as unknown as OcrOvProvider,
+  paddleocr: null as unknown as OcrPpocrProvider,
+  system: null as unknown as OcrSystemProvider,
+  tesseract: null as unknown as OcrTesseractProvider
+}
 
-  // safely fallback
-  if (!provider) {
-    logger.error(`Ocr Provider ${id} not found`)
-    logger.warn(`Fallback to tesseract`)
-    window.toast.error(t('ocr.error.provider.not_found'))
-    window.toast.warning(t('ocr.warning.provider.fallback', { name: 'Tesseract' }))
-    provider = BUILTIN_OCR_PROVIDERS_MAP.tesseract
-  }
+const CONFIG_REGISTRY = {
+  ovocr: null as unknown as OcrOvConfig,
+  paddleocr: null as unknown as OcrPpocrConfig,
+  system: null as unknown as OcrSystemConfig,
+  tesseract: null as unknown as OcrTesseractConfig
+} as const
 
-  const updateConfig = (update: Partial<OcrProviderConfig>) => {
-    dispatch(updateOcrProviderConfig({ id: provider.id, update }))
-  }
+type ProviderMap = typeof PROVIDER_REGISTRY
+
+type ConfigMap = typeof CONFIG_REGISTRY
+
+type TProvider<T extends BuiltinOcrProviderId> = ProviderMap[T]
+
+type TConfig<T extends BuiltinOcrProviderId> = ConfigMap[T]
+
+type UseOcrProviderReturn<T extends BuiltinOcrProviderId> = {
+  provider: TProvider<T>
+  config: TConfig<T>
+  updateConfig: (update: Partial<TConfig<T>>) => void
+}
+
+export const useOcrProvider = <T extends BuiltinOcrProviderId>(id: T): UseOcrProviderReturn<T> => {
+  const provider = useMemo(() => {
+    switch (id) {
+      case 'ovocr':
+        return BUILTIN_OCR_PROVIDERS_MAP.ovocr
+      case 'paddleocr':
+        return BUILTIN_OCR_PROVIDERS_MAP.paddleocr
+      case 'system':
+        return BUILTIN_OCR_PROVIDERS_MAP.system
+      case 'tesseract':
+        return BUILTIN_OCR_PROVIDERS_MAP.tesseract
+    }
+  }, [id])
+  const [ovConfig, setOvConfig] = usePreference('ocr.provider.config.ovocr')
+  const [ppConfig, setPpConfig] = usePreference('ocr.provider.config.paddleocr')
+  const [sysConfig, setSysConfig] = usePreference('ocr.provider.config.system')
+  const [tesConfig, setTesConfig] = usePreference('ocr.provider.config.tesseract')
+
+  const config = useMemo(() => {
+    switch (id) {
+      case 'ovocr':
+        return ovConfig
+      case 'paddleocr':
+        return ppConfig
+      case 'system':
+        return sysConfig
+      case 'tesseract':
+        return tesConfig
+    }
+  }, [id, ovConfig, ppConfig, sysConfig, tesConfig])
+
+  const updateConfig = useCallback(
+    (update: Partial<TConfig<T>>) => {
+      switch (id) {
+        case 'ovocr':
+          setOvConfig(merge({}, ovConfig, update))
+          break
+        case 'paddleocr':
+          setPpConfig(merge({}, ppConfig, update))
+          break
+        case 'system':
+          setSysConfig(merge({}, sysConfig, update))
+          break
+        case 'tesseract':
+          setTesConfig(merge({}, tesConfig, update))
+          break
+        default:
+          logger.warn(`Unsupported OCR provider id: ${id}`)
+      }
+    },
+    [id, ovConfig, ppConfig, setOvConfig, setPpConfig, setSysConfig, setTesConfig, sysConfig, tesConfig]
+  )
 
   return {
     provider,
+    config,
     updateConfig
-  }
+  } as UseOcrProviderReturn<T>
 }

src/renderer/src/hooks/ocr/useOcrProviders.ts

@@ -1,13 +1,10 @@
 import { useQuery } from '@data/hooks/useDataApi'
-import { loggerService } from '@logger'
 import { getBuiltinOcrProviderLabel } from '@renderer/i18n/label'
 import type { OcrProvider } from '@renderer/types'
 import { isBuiltinOcrProvider } from '@renderer/types'
 import { BUILTIN_OCR_PROVIDERS } from '@shared/config/ocr'
 import { useMemo } from 'react'
 
-const logger = loggerService.withContext('useOcrProviders')
-
 export const useOcrProviders = () => {
   const { data: validProviderIds, loading, error } = useQuery('/ocr/providers')
   const providers = useMemo(