Administrator login

1. Add employee

1.1. List all Employee

1.2. Create Employee with their role

1.3. Change their password

2. List Bill produced by Saleman

2.1. List all + list today bill purchased

2.2. View detail of that bill

2.3. View Month Pie Chart of trending purchased item

3. Inventory

3.1. See all the item based on Category

3.2. Change Store Price

3.3. Change Items status

4. Add Category + Item(Import new items for store)

4.1. Add Category name

4.2. Add Item

4.3. Add Supplier

5. List Bill imported goods

5.1. List all + list today bill imported

5.2. View detail of that bill

5.3. View Month Pie Chart of trending imported item