Feat: Render MessageForm with shadcn-ui. #3221 (#5596)

### What problem does this PR solve?

Feat: Render MessageForm with shadcn-ui. #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/form/message-form/index.tsx

@@ -1,85 +1,80 @@
-import { useTranslate } from '@/hooks/common-hooks';
-import { MinusCircleOutlined, PlusOutlined } from '@ant-design/icons';
-import { Button, Form, Input } from 'antd';
-import { IOperatorForm } from '../../interface';
+import { Button } from '@/components/ui/button';
+import {
+  Form,
+  FormControl,
+  FormField,
+  FormItem,
+  FormLabel,
+  FormMessage,
+} from '@/components/ui/form';
+import { Textarea } from '@/components/ui/textarea';
+import { PlusCircle, Trash2 } from 'lucide-react';
+import { useFieldArray } from 'react-hook-form';
+import { useTranslation } from 'react-i18next';
+import { INextOperatorForm } from '../../interface';
 
-import styles from './index.less';
-
-const formItemLayout = {
-  labelCol: {
-    sm: { span: 6 },
-  },
-  wrapperCol: {
-    sm: { span: 18 },
-  },
-};
-
-const formItemLayoutWithOutLabel = {
-  wrapperCol: {
-    sm: { span: 18, offset: 6 },
-  },
-};
-
-const MessageForm = ({ onValuesChange, form }: IOperatorForm) => {
-  const { t } = useTranslate('flow');
+const MessageForm = ({ form }: INextOperatorForm) => {
+  const { t } = useTranslation();
+  const { fields, append, remove } = useFieldArray({
+    name: 'messages',
+    control: form.control,
+  });
 
   return (
-    <Form
-      name="basic"
-      {...formItemLayoutWithOutLabel}
-      onValuesChange={onValuesChange}
-      autoComplete="off"
-      form={form}
-    >
-      <Form.List name="messages">
-        {(fields, { add, remove }, {}) => (
-          <>
+    <Form {...form}>
+      <form
+        className="space-y-6"
+        onSubmit={(e) => {
+          e.preventDefault();
+        }}
+      >
+        <FormItem>
+          <FormLabel>{t('flow.msg')}</FormLabel>
+          <div className="space-y-4">
             {fields.map((field, index) => (
-              <Form.Item
-                {...(index === 0 ? formItemLayout : formItemLayoutWithOutLabel)}
-                label={index === 0 ? t('msg') : ''}
-                required={false}
-                key={field.key}
-              >
-                <Form.Item
-                  {...field}
-                  validateTrigger={['onChange', 'onBlur']}
-                  rules={[
-                    {
-                      required: true,
-                      whitespace: true,
-                      message: t('messageMsg'),
-                    },
-                  ]}
-                  noStyle
-                >
-                  <Input.TextArea
-                    rows={4}
-                    placeholder={t('messagePlaceholder')}
-                    style={{ width: '80%' }}
-                  />
-                </Form.Item>
-                {fields.length > 1 ? (
-                  <MinusCircleOutlined
-                    className={styles.dynamicDeleteButton}
-                    onClick={() => remove(field.name)}
-                  />
-                ) : null}
-              </Form.Item>
+              <div key={field.id} className="flex items-start gap-2">
+                <FormField
+                  control={form.control}
+                  name={`messages.${index}`}
+                  render={({ field }) => (
+                    <FormItem className="flex-1">
+                      <FormControl>
+                        <Textarea
+                          {...field}
+                          placeholder={t('flow.messagePlaceholder')}
+                          rows={5}
+                        />
+                      </FormControl>
+                    </FormItem>
+                  )}
+                />
+                {fields.length > 1 && (
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    type="button"
+                    onClick={() => remove(index)}
+                    className="cursor-pointer text-colors-text-functional-danger"
+                  >
+                    <Trash2 className="h-4 w-4" />
+                  </Button>
+                )}
+              </div>
             ))}
-            <Form.Item>
-              <Button
-                type="dashed"
-                onClick={() => add()}
-                style={{ width: '80%' }}
-                icon={<PlusOutlined />}
-              >
-                {t('addMessage')}
-              </Button>
-            </Form.Item>
-          </>
-        )}
-      </Form.List>
+
+            <Button
+              type="button"
+              variant="outline"
+              onClick={() => append(' ')} // "" will cause the inability to add, refer to: https://github.com/orgs/react-hook-form/discussions/8485#discussioncomment-2961861
+              className="w-full mt-4"
+            >
+              <PlusCircle className="mr-2 h-4 w-4" />
+              {t('flow.addMessage')}
+            </Button>
+          </div>
+          <FormMessage />
+        </FormItem>
+      </form>
     </Form>
   );
 };