feat: add image preview and upload animation to AddProductTab

src/components/dashboard/tabs/AddProductTab.tsx

@@ -1,9 +1,33 @@
-import React from 'react';
+import React, { useState } from 'react';
 import { useSeller } from '../../../context/SellerContext';
 
 export default function AddProductTab() {
   const { setDashTab } = useSeller();
   
+  const [imagePreview, setImagePreview] = useState<string | null>(null);
+  const [isSubmitting, setIsSubmitting] = useState(false);
+
+  const handleImageChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (file) {
+      const reader = new FileReader();
+      reader.onloadend = () => {
+        setImagePreview(reader.result as string);
+      };
+      reader.readAsDataURL(file);
+    }
+  };
+
+  const handleSubmit = (e: React.FormEvent) => {
+    e.preventDefault();
+    setIsSubmitting(true);
+    // Simulate API call and progress
+    setTimeout(() => {
+      setIsSubmitting(false);
+      setDashTab('products');
+    }, 1500); // 1.5 seconds animation
+  };
+
   return (
     <div>
       <div className="is-flex is-align-items-center mb-5">
@@ -18,7 +42,7 @@ export default function AddProductTab() {
       </div>
 
       <div className="box" style={{ borderTop: '4px solid var(--bulma-primary)' }}>
-        <form onSubmit={(e) => { e.preventDefault(); setDashTab('products'); }}>
+        <form onSubmit={handleSubmit}>
           <div className="columns is-multiline">
             
             {/* Left Column: Basic Info */}
@@ -69,18 +93,32 @@ export default function AddProductTab() {
                 <label className="label has-text-grey-dark">Product Image</label>
                 <div className="control">
                   <div className="file is-boxed is-fullwidth">
-                    <label className="file-label is-flex-direction-column is-align-items-center">
+                    <label className="file-label is-flex-direction-column is-align-items-center" style={{ width: '100%' }}>
-                      <input className="file-input" type="file" name="resume" accept="image/*" />
+                      <input className="file-input" type="file" accept="image/*" onChange={handleImageChange} required={!imagePreview} />
-                      <span className="file-cta is-flex is-flex-direction-column is-align-items-center py-5 has-background-white" style={{ border: '1px solid var(--bulma-primary)' }}>
+                      <span 
+                        className="file-cta is-flex is-flex-direction-column is-align-items-center py-5 has-background-white" 
+                        style={{ border: '1px solid var(--bulma-primary)', width: '100%', overflow: 'hidden' }}
+                      >
+                        {imagePreview ? (
+                          <img src={imagePreview} alt="Preview" style={{ maxHeight: '150px', objectFit: 'contain' }} />
+                        ) : (
+                          <>
                             <span className="file-icon mb-2 has-text-primary">
                               <span className="material-symbols-outlined is-size-3">upload</span>
                             </span>
                             <span className="file-label has-text-primary">
                               Choose an image…
                             </span>
+                          </>
+                        )}
                       </span>
                     </label>
                   </div>
+                  {imagePreview && (
+                    <p className="help has-text-centered mt-2 is-size-7">
+                      <a onClick={() => setImagePreview(null)} className="has-text-danger">Remove image</a>
+                    </p>
+                  )}
                 </div>
               </div>
 
@@ -103,8 +141,20 @@ export default function AddProductTab() {
           </div>
 
           <div className="is-flex is-justify-content-flex-end mt-5">
-            <button type="button" className="button is-light mr-3" onClick={() => setDashTab('products')}>Cancel</button>
+            <button 
-            <button type="submit" className="button is-primary is-outlined">Publish Product</button>
+              type="button" 
+              className="button is-light mr-3" 
+              onClick={() => setDashTab('products')}
+              disabled={isSubmitting}
+            >
+              Cancel
+            </button>
+            <button 
+              type="submit" 
+              className={`button is-primary is-outlined ${isSubmitting ? 'is-loading' : ''}`}
+            >
+              Publish Product
+            </button>
           </div>
         </form>
       </div>