added upload and update avatar methods for AUthor Provider

src/blog/providers/Author.tsx

@@ -95,7 +95,6 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
     }
   };
 
-
   /** 🔹 Auto-load current user if token exists */
   const fetchCurrentUser = async () => {
     if (!token) return;
@@ -113,6 +112,54 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
     }
   };
 
+  /** --------------------------------------------
+   * 🔹 Upload avatar binary → return URL
+   * -------------------------------------------- */
+  const uploadAvatar = async (file: File): Promise<string | null> => {
+    try {
+      const arrayBuffer = await file.arrayBuffer();
+      const binary = new Uint8Array(arrayBuffer);
+
+      const res = await fetch('/media/upload', {
+        method: 'POST',
+        headers: {
+          'Content-Type': file.type,
+          'Content-Disposition': `attachment; filename="${file.name}"`,
+        },
+        body: binary,
+      });
+
+      if (!res.ok) throw new Error('Avatar upload failed');
+
+      const data = await res.json();
+      return data.url; // "/media/uploads/uuid.jpg"
+    } catch (err) {
+      console.error('Failed to upload avatar:', err);
+      return null;
+    }
+  };
+
+  /** --------------------------------------------
+   * 🔹 Full flow: upload avatar → update profile
+   * -------------------------------------------- */
+  const updateAvatar = async (file: File) => {
+    if (!currentUser) return;
+
+    const url = await uploadAvatar(file);
+    if (!url) {
+      setError("Failed to upload avatar");
+      return;
+    }
+
+    // Update the user's avatar
+    const updated = await updateProfile({
+      ...currentUser,
+      avatar: url,
+    });
+
+    return updated;
+  };
+
   /** 🔹 On mount, try to fetch user if token exists */
   useEffect(() => {
     if (token) fetchCurrentUser();
@@ -131,6 +178,8 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
         register,
         refreshAuthors,
         updateProfile,
+        uploadAvatar,
+        updateAvatar,
       }}
     >
       {children}

src/blog/types/contexts.ts

@@ -18,4 +18,6 @@ export interface AuthContextModel {
   logout: () => void;
   refreshAuthors: () => Promise<void>;
   updateProfile: (user: AuthorModel) => Promise<AuthorModel | void>;
+  uploadAvatar: (file: File) => Promise<string | null>;
+  updateAvatar: (file: File) => Promise<AuthorModel | undefined>;
 }