feat: parent child retrieval (#12106)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: -LAN- <laipz8200@outlook.com>

web/app/components/datasets/chunk.tsx

@@ -0,0 +1,54 @@
+import type { FC, PropsWithChildren } from 'react'
+import { SelectionMod } from '../base/icons/src/public/knowledge'
+import type { QA } from '@/models/datasets'
+
+export type ChunkLabelProps = {
+  label: string
+  characterCount: number
+}
+
+export const ChunkLabel: FC<ChunkLabelProps> = (props) => {
+  const { label, characterCount } = props
+  return <div className='flex items-center text-text-tertiary text-xs font-medium'>
+    <SelectionMod className='size-[10px]' />
+    <p className='flex gap-2 ml-0.5'><span>
+      {label}
+    </span>
+    <span>
+        ·
+    </span>
+    <span>
+      {`${characterCount} characters`}
+    </span></p>
+  </div>
+}
+
+export type ChunkContainerProps = ChunkLabelProps & PropsWithChildren
+
+export const ChunkContainer: FC<ChunkContainerProps> = (props) => {
+  const { label, characterCount, children } = props
+  return <div className='space-y-2'>
+    <ChunkLabel label={label} characterCount={characterCount} />
+    <div className='text-text-secondary body-md-regular'>
+      {children}
+    </div>
+  </div>
+}
+
+export type QAPreviewProps = {
+  qa: QA
+}
+
+export const QAPreview: FC<QAPreviewProps> = (props) => {
+  const { qa } = props
+  return <div className='flex flex-col gap-y-2'>
+    <div className='flex gap-x-1'>
+      <label className='text-text-tertiary text-[13px] font-medium leading-[20px] shrink-0'>Q</label>
+      <p className='text-text-secondary body-md-regular'>{qa.question}</p>
+    </div>
+    <div className='flex gap-x-1'>
+      <label className='text-text-tertiary text-[13px] font-medium leading-[20px] shrink-0'>A</label>
+      <p className='text-text-secondary body-md-regular'>{qa.answer}</p>
+    </div>
+  </div>
+}