bookStore

# Use JSON for storage

import json

bookStore = {}
file = "store.json"

def readFromStore():
    with open( file, "r" ) as f:
        global bookStore
        bookStore = json.loads(f.read())
        print( bookStore )

def saveToStore():
    with open( file, "w" ) as f:
        global bookStore
        f.write(json.dumps(bookStore))

def updateStore( name, data ):
    global bookStore
    bookStore[ name ] = data
    # Save the data
    saveToStore();

# Let's read from store before starting
readFromStore()

while (1):
    print("\n")
    print("\tPadmalaya Book Store")
    print("\tA reliable one")
    print("1. A for append")
    print("2. D for delete")
    print("3. U for update")
    print("4. R for read")
    x = input("Your choice: ")
    name = input("Book name: ")
    if x == "A":
        # Input everything else here
        updateStore( name, { "cost": c, "edition": e, "price": p, "publisher": pub  } )
    elif x == "R":
        if name in bookStore:
            print("Book name: ", name, "\n Book Details: ", bookStore[ name ] )
        else:
            print("The given book doesn't exist")
    else:
        print("Goodbye!")
        break


# Example of store.json
"""
{
    "H. C. Verma": {
        "cost": 390,
        "edition": 1,
        "publisher": "Balaji"
    },
    "Book 2": {
        "cost": 390,
        "edition": 1,
        "publisher": "Balaji"
    }
}
"""