feat(ocr): 添加OCR类型定义文件以支持OCR功能扩展

src/renderer/src/types/ocr.ts

@@ -0,0 +1,63 @@
+import { Model } from '@types'
+
+export const BuiltinOcrProviderIds = {
+  tesseract: 'tesseract'
+} as const
+
+export type BuiltinOcrProviderId = keyof typeof BuiltinOcrProviderIds
+
+export const isBuiltinOcrProviderId = (id: string): id is BuiltinOcrProviderId => {
+  return Object.hasOwn(BuiltinOcrProviderIds, id)
+}
+
+// extensible
+export const OcrProviderCapabilities = {
+  image: 'image'
+} as const
+
+export type OcrProviderCapability = keyof typeof OcrProviderCapabilities
+
+export const isOcrProviderCapability = (cap: string): cap is OcrProviderCapability => {
+  return Object.hasOwn(OcrProviderCapabilities, cap)
+}
+
+export type OcrProviderCapabilityRecord = Record<OcrProviderCapability, boolean>
+
+export type OcrProvider = {
+  id: string
+  name: string
+  capabilities: OcrProviderCapabilityRecord
+  config?: {
+    // for future. Model based ocr, api based ocr. May different api client.
+    api?: {
+      apiKey: string
+      apiHost: string
+      apiVersion?: string
+    }
+    models?: Model[]
+    enabled?: boolean
+  }
+}
+
+export type BuiltinOcrProvider = OcrProvider & {
+  id: BuiltinOcrProviderId
+}
+
+export const isBuiltinOcrProvider = (p: OcrProvider): p is BuiltinOcrProvider => {
+  return isBuiltinOcrProviderId(p.id)
+}
+
+// Not sure compatiable api endpoint exists. May not support custom ocr provider
+export type CustomOcrProvider = OcrProvider & {
+  id: Exclude<string, BuiltinOcrProviderId>
+}
+
+export type ImageOcrProvider = OcrProvider & {
+  capabilities: OcrProviderCapabilityRecord & {
+    [OcrProviderCapabilities.image]: true
+  }
+}
+
+export const isImageOcrProvider = (p: OcrProvider): p is ImageOcrProvider => {
+  return p.capabilities.image
+}