🛒 Next.js E-Commerce Platform

A full-featured e-commerce platform built with Next.js, allowing users to sign up as buyers, sellers, or both.
Sellers can list products, manage inventory, and view sales, while buyers can browse, purchase, review items, and track orders.

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🚀 Features

✅ User Authentication

• Email/password registration & login
• OAuth (Google, Facebook) integration
• Role system (buyer/seller/both)

✅ Seller Features

• Create, edit, and manage product listings
• Upload multiple product images
• Track inventory and sales
• View order history

✅ Buyer Features

• Browse and search products
• Add to cart and checkout
• Leave reviews and ratings
• Wishlist functionality

✅ Core Functionality

• Responsive design (mobile-friendly)
• Secure payment processing (Stripe / PayPal)
• Order tracking
• Admin dashboard

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🗄 Database Schema

User Table

Field	Type	Constraints
_id	ObjectId	Primary Key
username	String	NOT NULL
email	String	UNIQUE, NOT NULL
password	String	NULLABLE
phone_number	String	NULLABLE
avatar_url	String	NULLABLE
bio	String	NULLABLE
created_at	DateTime	DEFAULT current timestamp
updated_at	DateTime	AUTO UPDATE on modification
social_link_id	ObjectId	Foreign Key → SocialLink._id

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SocialLink Table

Field	Type	Constraints
_id	ObjectId	Primary Key
created_at	DateTime	DEFAULT current timestamp
updated_at	DateTime	AUTO UPDATE
facebook	String	NULLABLE
instagram	String	NULLABLE
twitter	String	NULLABLE
telegram	String	NULLABLE

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Product Table

Field	Type	Constraints
_id	ObjectId	Primary Key
created_at	DateTime	DEFAULT current timestamp
updated_at	DateTime	AUTO UPDATE
creator_id	ObjectId	Foreign Key → Users._id
description	String	NOT NULL
price	Number	NOT NULL
images	[String]	Array of image URLs
stock	Number	Default: 0
category	String	NOT NULL
rating	Number(0-5)	Default: 0
reviewsCount	Number	Default: 0

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ProductReview Table

Field	Type	Constraints
_id	ObjectId	Primary Key
created_at	DateTime	DEFAULT current timestamp
updated_at	DateTime	AUTO UPDATE
reviewer_id	ObjectId	Foreign Key → Users._id
content	String	NOT NULL
like	Number	Default: 0

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🛠 Tech Stack

• Frontend: Next.js, Tailwind CSS
• Backend: Next.js API Routes
• Database: MongoDB (with Mongoose)
• Authentication: NextAuth.js
• Payments: Stripe / PayPal

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⚡ Installation & Setup

1. Clone the repo

   git clone https://github.com/luchzin/e-commerce.git
   cd nextjs-ecommerce