feat(getPageContentText): enhance getPageContentText to handle nested block content

- refactor getText function to process block properties and content
- add support for recursive processing of nested block content
- improve null checks and error handling in block processing
- update getBlockContentText to handle block value safely

lib/notion/getPageContentText.js

@@ -3,17 +3,23 @@ import { getTextContent } from 'notion-utils'
 export function getPageContentText(post, pageBlockMap) {
   /**
    * 将对象的指定字段拼接到字符串
-   * @param sourceTextArray
-   * @param targetObj
-   * @param key
+   * @param block
    * @returns string
    */
-  function getText(targetObj) {
-    if (!targetObj) {
+  function getText(block) {
+    const result = []
+    const properties = block.properties
+    if (!properties) {
       return ''
     }
-    const textArray = targetObj['title'] || targetObj['caption']
-    return getTextArray(textArray)
+    const textArray = properties['title'] || properties['caption']
+    result.push(getTextArray(textArray))
+    if (block['content']?.length > 0) {
+      for (const blockContent of block.content) {
+        result.push(getBlockContentText(blockContent))
+      }
+    }
+    return result.join('')
   }
 
   function getTextArray(textArray) {
@@ -38,7 +44,7 @@ export function getPageContentText(post, pageBlockMap) {
   }
 
   function getBlockContentText(id) {
-    const block = pageBlockMap?.block[id].value
+    const block = pageBlockMap?.block[id]?.value
     if (!block) {
       return ''
     }
@@ -51,7 +57,7 @@ export function getPageContentText(post, pageBlockMap) {
         return getTableText(block.content)
       case 'page':
         if (id !== postId) {
-          return getText(block.properties)
+          return getText(block)
         }
         return ''
       case 'breadcrumb':
@@ -59,8 +65,7 @@ export function getPageContentText(post, pageBlockMap) {
         return ''
       case 'quote':
       default:
-        const properties = block?.properties
-        return getText(properties)
+        return getText(block)
     }
   }