#import statements
import boto3
import sys

#boto3 client definition
s3 = boto3.client('s3')

#create sentinel loop
userIn = ''
print('Welcome to Bucket Accessor. Please enter the letter associated with what you want to do.')
while userIn != 'g':
    print(' Enter a to create a buckets \n Enter b to put object in bucket \n Enter c to delete object in bucket \n Enter d to delete a bucket \n Enter e to copy between buckets \n Enter f to download from bucket \n Enter g to exit')
    userIn = input("Enter input: ")
    
    #create bucket
    if userIn == 'a':
        userIn1 = input('Enter name of bucket: ')
        bucket_name = userIn1
        s3.create_bucket(Bucket=bucket_name)
        
    #put object in bucket    
    elif userIn == 'b':
        userIn1 = str(input('Enter name of bucket: '))
        userIn2 = str(input('Enter name of file: '))
        response = s3.upload_file(Filename=userIn2,Bucket=userIn1,Key = userIn2)
    
    #delete object in bucket
    elif userIn == 'c':
        userIn1 = str(input('Enter name of bucket: '))
        userIn2 = str(input('Enter name of file: '))
        s3.delete_object(Bucket = userIn1, Key = userIn2)
    
    #delete bucket
    elif userIn == 'd':
        userIn1 = input('Enter name of bucket to delete: ')
        s3 = boto3.resource('s3')
        bucket = s3.Bucket(userIn1)
        bucket.delete()
        
    #copy from bucket to bucket
    elif userIn == 'e':
        userIn1 = str(input('Enter name of bucket to copy from: '))
        userIn2 = str(input('Enter name of file: '))
        userIn5 = str(input('Enter name of next bucket: '))
        s3 = boto3.resource('s3')
        copy_source = {
        'Bucket': userIn1,
        'Key': userIn2
        }
        s3.meta.client.copy(copy_source, userIn5, Key = userIn2)
    
    #download from file
    elif userIn == 'f':
        userIn1 = str(input('Enter name of bucket: '))
        userIn2 = str(input('Enter name of file: '))
        userIn3 = input('Enter a new name of file: ')
        s3.download_file(userIn1 , userIn2, userIn3)
    
    #exit program enter g