实现博客评论

tone-page-web/app/(with-header-footer)/blog/[id]/components/BlogCommentTool.tsx

@@ -4,29 +4,69 @@ import { Button } from "@/components/ui/button";
 import { Textarea } from "@/components/ui/textarea";
 import { BlogApi } from "@/lib/api";
 import { BlogComment } from "@/lib/types/blogComment";
-import { Send } from "lucide-react";
-import { useState } from "react";
+import { Send, Undo2 } from "lucide-react";
+import { useEffect, useRef, useState } from "react";
 import { toast } from "sonner";
 
-export function BlogCommentTool({ blogId, onInsertComment }: { blogId: string, onInsertComment: (b: BlogComment) => void }) {
+interface BlogCommentToolProps {
+    blogId: string;
+    onInsertComment: (b: BlogComment) => void;
+    replayTarget: BlogComment | null;
+    handleClearReplayTarget: () => void;
+}
 
+export function BlogCommentTool({ blogId, onInsertComment, replayTarget, handleClearReplayTarget }: BlogCommentToolProps) {
     const [comment, setComment] = useState('');
+    const textareaRef = useRef<HTMLTextAreaElement>(null);
+
+    useEffect(() => {
+        if (replayTarget && textareaRef.current) {
+            textareaRef.current.focus();
+            textareaRef.current.scrollIntoView({
+                behavior: 'smooth',
+                block: 'center',
+                inline: 'start'
+            })
+        }
+    }, [replayTarget]);
+
     const submit = async () => {
         if (comment.trim().length === 0) return;
-        const res = await BlogApi.createComment(blogId, comment);
+        const res = await BlogApi.createComment(blogId, comment, replayTarget ? replayTarget.id : undefined);
         if (res) {
             toast.success('发布成功');
             setComment('');
             onInsertComment(res);
+            handleClearReplayTarget();
         }
     }
 
+    const getPlaceHolderText = () => {
+        if (!replayTarget) return '评论';
+
+        let replayComment = replayTarget.content.trim();
+        if (replayComment.length > 8) {
+            replayComment = replayComment.slice(0, 8) + '...';
+        }
+
+        const replayUser = replayTarget.user ? replayTarget.user.nickname : '匿名';
+
+        return `回复 ${replayUser} 的 ${replayComment}`;
+    }
+
     return (
         <div className="my-3 flex items-end gap-2">
-            <Textarea placeholder="评论" onChange={v => setComment(v.target.value)} value={comment} />
+            <Textarea
+                ref={textareaRef}
+                placeholder={getPlaceHolderText()}
+                onChange={v => setComment(v.target.value)}
+                value={comment} />
             <Button variant='outline' size='icon' onClick={() => submit()} disabled={comment.trim().length === 0}>
                 <Send />
             </Button>
+            {replayTarget && <Button variant='outline' size='icon' onClick={() => handleClearReplayTarget()}>
+                <Undo2 />
+            </Button>}
         </div>
     )
-}
+}

tone-page-web/app/(with-header-footer)/blog/[id]/components/BlogComments.tsx

@@ -2,6 +2,7 @@ import useSWR from "swr";
 import { BlogCommentTool } from "./BlogCommentTool";
 import { BlogApi } from "@/lib/api";
 import { BlogComment } from "@/lib/types/blogComment";
+import { useState } from "react";
 
 export function BlogComments({ blogId }: { blogId: string }) {
     const { data, isLoading, error, mutate } = useSWR(
@@ -19,34 +20,42 @@ export function BlogComments({ blogId }: { blogId: string }) {
         )
     }
 
+
+    const [replayTarget, setReplayTarget] = useState<BlogComment | null>(null);
+
     return (
         data && <div className="" >
             <h1 className="px-2 border-l-4 border-zinc-300">评论 {data.length}</h1>
-            <BlogCommentTool blogId={blogId} onInsertComment={insertComment} />
-            <div className="flex flex-col gap-3">
+            <BlogCommentTool
+                blogId={blogId}
+                onInsertComment={insertComment}
+                replayTarget={replayTarget}
+                handleClearReplayTarget={() => setReplayTarget(null)}
+            />
+            <div className="flex flex-col">
                 {
                     data.filter(d => !d.parentId)
-                        .map(d => (
-                            <div key={d.id}>
+                        .map((d, dIndex) => (
+                            <div key={d.id} className="border-b border-zinc-300 py-2 last:border-none">
                                 <h1 className="text-zinc-500">{d.user ? d.user.nickname : '匿名'}</h1>
-                                <div>{d.content}</div>
+                                <div className="whitespace-pre-wrap break-all">{d.content}</div>
                                 <div className="text-xs text-zinc-500 flex gap-2">
                                     <p>{new Date(d.createdAt).toLocaleString()}</p>
                                     <p>未知</p>
-                                    <p className="text-zinc-900 cursor-pointer">回复</p>
+                                    <p className="text-zinc-900 cursor-pointer" onClick={() => setReplayTarget(d)}>回复</p>
                                 </div>
                                 {
                                     data.filter(c => c.parentId === d.id).length > 0 && (
-                                        <div className="flex flex-col gap-3 ml-5 my-1">
+                                        <div className="flex flex-col ml-5 my-1">
                                             {
                                                 data.filter(c => c.parentId === d.id).map(c => (
-                                                    <div key={c.id}>
+                                                    <div key={c.id} className="border-b border-zinc-300 py-1 last:border-none">
                                                         <h1 className="text-zinc-500">{c.user ? c.user.nickname : '匿名'}</h1>
-                                                        <div>{c.content}</div>
-                                                        <p className="text-xs text-zinc-500 flex gap-2">
+                                                        <div className="whitespace-pre-wrap break-all">{c.content}</div>
+                                                        <div className="text-xs text-zinc-500 flex gap-2">
                                                             <p>{new Date().toLocaleString()}</p>
                                                             <p>未知</p>
-                                                        </p>
+                                                        </div>
                                                     </div>
                                                 ))
                                             }

tone-page-web/lib/api/blog/createComment.ts

@@ -1,9 +1,12 @@
 import { BlogComment } from "@/lib/types/blogComment";
 import fetcher from "../fetcher";
 
-export async function createComment(blogId: string, content: string) {
+export async function createComment(blogId: string, content: string, parentId?: string) {
     return fetcher<BlogComment>(`/api/blog/${blogId}/comment`, {
         method: 'POST',
-        body: JSON.stringify({ content }),
+        body: JSON.stringify({
+            content,
+            parentId: parentId || null,
+        }),
     });
 }