feat: 增加博客评论模块

src/utils/blog/blogUtil.ts

@@ -1,5 +1,5 @@
 import { ElMessage } from 'element-plus'
-import { IBasicBlog, IBlog } from '@/types/blog.ts'
+import { IBasicBlog, IBlog, IBlogComment, IBlogNestedComment } from '@/types/blog.ts'
 import dayjs from 'dayjs'
 
 /**
@@ -172,3 +172,24 @@ export const getBasicBlog = (blog: IBlog): IBasicBlog => {
   }
 }
 
+// 扁平化数据转两层嵌套结构
+export function flattenToTwoLevel(comments: IBlogComment[]): IBlogNestedComment[] {
+  // 创建评论映射表，快速查找评论
+  const commentMap = new Map<number, IBlogComment>()
+  comments.forEach((comment) => commentMap.set(comment.id, comment))
+
+  // 结果数组
+  const result: IBlogNestedComment[] = []
+
+  // 遍历所有评论，构建两层结构
+  comments.forEach((comment) => {
+    if (comment.parentId === 0) {
+      // 顶层评论
+      const replies = comments.filter((reply) => reply.parentId === comment.id)
+      result.push({ comment, replies })
+    }
+  })
+
+  return result
+}
+