Add tag function in CreatePostPage

client/src/components/NextUIFormikTagInput.tsx

@@ -0,0 +1,74 @@
+import { Input } from "@nextui-org/react";
+import { useField } from "formik";
+import { useState } from "react";
+import { EyeIcon, EyeSlashIcon } from "../icons";
+
+interface NextUIFormikTagInputProps {
+    label: string;
+    name: string;
+    type: string;
+    placeholder: string;
+    labelPlacement?: "inside" | "outside";
+    startContent?: JSX.Element;
+    readOnly?: boolean;
+    setFieldValue?: (field: string, value: any, shouldValidate?: boolean) => void;
+    value?: string;
+    onChange?: (e: React.ChangeEvent<HTMLInputElement>) => void; // Allow onChange prop
+}
+
+const NextUIFormikTagInput = ({
+    label,
+    startContent,
+    readOnly = false,
+    setFieldValue,
+    value,
+    onChange,
+    ...props
+}: NextUIFormikTagInputProps) => {
+    // Use Formik's useField hook to get field props and meta information
+    const [field, meta] = useField(props.name);
+    const [inputType, setInputType] = useState(props.type);
+
+    // Handle changes in the input field
+    const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        const { value } = e.target;
+        field.onChange(e);
+        if (setFieldValue) {
+            setFieldValue(props.name, value);
+        }
+        if (onChange) {
+            onChange(e); // Call the passed onChange handler
+          }
+    };
+
+    return (
+        <Input
+            {...field}
+            {...props}
+            label={label}
+            type={inputType}
+            isInvalid={meta.touched && !!meta.error}
+            errorMessage={meta.touched && meta.error ? meta.error : ""}
+            startContent={startContent}
+            endContent={
+                props.type === "password" ? (
+                    <>
+                        <button
+                            type="button"
+                            onClick={() => {
+                                setInputType(inputType === "text" ? "password" : "text");
+                            }}
+                        >
+                            {inputType === "password" ? <EyeSlashIcon /> : <EyeIcon />}
+                        </button>
+                    </>
+                ) : null
+            }
+            readOnly={readOnly}
+            onChange={handleChange}
+            value={value} // Ensure the value from Formik is applied to the input
+        />
+    );
+};
+
+export default NextUIFormikTagInput;

client/src/components/TagInput.tsx

@@ -0,0 +1,78 @@
+import React, { useState } from "react";
+import { Button, input } from "@nextui-org/react";
+import NextUIFormikTagInput from "./NextUIFormikTagInput";
+
+type TagInputProps = {
+    tags: string[];
+    setTags: React.Dispatch<React.SetStateAction<string[]>>;
+};
+
+const TagInput: React.FC<TagInputProps> = ({ tags, setTags }) => {
+    const [inputTag, setInputTag] = useState("");
+    const [error, setError] = useState<string | null>(null);
+
+    // Handle input change and dynamic duplicate check
+    const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        const newTag = e.target.value.trim();
+        setInputTag(newTag);
+
+        // Dynamic duplicate check
+        if (tags.some(tag => tag.toLowerCase() === newTag.toLowerCase())) {
+            setError("Tag already added.");
+        } else {
+            setError(null);
+        }
+    };
+
+    const handleAddTag = () => {
+        if (error) {
+            return; // Prevent adding if there's an error
+        }
+
+        if (inputTag.trim() !== "") {
+            setTags([...tags, inputTag.trim()]);
+            setInputTag(""); // Clear input field  
+        }
+    };
+
+    const handleRemoveTag = (index: number) => {
+        setTags(tags.filter((_, i) => i !== index));
+    };
+
+    return (
+        <div>
+            <div>
+                <NextUIFormikTagInput
+                    label="Tags (Optional)"
+                    name="tagInput" // This name should be unique and not conflict with other form fields
+                    type="text"
+                    placeholder="Enter tags"
+                    labelPlacement="inside"
+                    value={inputTag}
+                    onChange={handleInputChange} // Use the dynamic check handler
+                />
+                {error && <div className="text-red-500 mt-2">{error}</div>}
+                <Button onPress={handleAddTag} disabled={!!error}>Add</Button>
+            </div>
+            <div className="flex gap-2 flex-wrap mt-4">
+                {tags.map((tag, index) => (
+                    <div
+                        key={index}
+                        className="flex items-center gap-1 bg-gray-200 p-2 rounded"
+                    >
+                        <span>{tag}</span>
+                        <button
+                            type="button"
+                            onClick={() => handleRemoveTag(index)}
+                            className="ml-2 text-red-500"
+                        >
+                            X
+                        </button>
+                    </div>
+                ))}
+            </div>
+        </div>
+    );
+};
+
+export default TagInput;

client/src/pages/CreatePostPage.tsx

@@ -10,6 +10,7 @@ import { ArrowUTurnLeftIcon } from "../icons";
 import { useEffect, useState } from "react";
 import { retrieveUserInformation } from "../security/users";
 import InsertPostImage from "../components/InsertPostImage";
+import TagInput from "../components/TagInput";
 
 const validationSchema = Yup.object({
   title: Yup.string()
@@ -37,6 +38,7 @@ function CreatePostPage() {
   const navigate = useNavigate();
   const [userId, setUserId] = useState(null);
   // Add state for image selection
+  const [tags, setTags] = useState<string[]>([]);
 
   const initialValues = {
     title: "",
@@ -69,7 +71,8 @@ function CreatePostPage() {
       if (values.postImage) {
         formData.append("postImage", values.postImage);
       }
-      formData.append("tags", values.tags);
+      // formData.append("tags", values.tags);
+      formData.append("tags", tags.join(","));
       formData.append("userId", userId || ""); // Ensure userId is appended to formData
 
       console.log("Submitting formData:", formData);
@@ -83,6 +86,7 @@ function CreatePostPage() {
       if (response.status === 200) {
         console.log("Post created successfully:", response.data);
         resetForm(); // Clear form after successful submit
+        setTags([]);
         setFieldValue("postImage", null);
         navigate(-1);
       } else {
@@ -136,13 +140,7 @@ function CreatePostPage() {
                 />
               </div>
               <div>
-                <NextUIFormikInput
-                  label="Tags (Optional)"
-                  name="tags"
-                  type="text"
-                  placeholder="Enter tags"
-                  labelPlacement="inside"
-                />
+                <TagInput tags={tags} setTags={setTags} />
               </div>
               <div className="text-sm">
                 <div className="flex flex-row gap-10">