import boto3
from botocore.exceptions import ClientError
import os.path

# Arguments
folder_to_sync = './test/data'
bucket_target = 'my-bucket'

# Create connection
s3 = boto3.client('s3', use_ssl=False, endpoint_url="http://172.17.0.2:9000", aws_access_key_id="minio", aws_secret_access_key="miniokey")

# Check bucket
try:
    s3.head_bucket(Bucket=bucket_target)
except ClientError as e:
    s3.create_bucket(Bucket=bucket_target)

# Get file list
# Source : https://stackoverflow.com/questions/3207219/how-do-i-list-all-files-of-a-directory
local_file_list = os.listdir(folder_to_sync)
bucket_file_list = [obj['Key'] for obj in s3.list_objects(Bucket=bucket_target)['Contents']]

# Upload
print("Uploading new files ...")
for file_name in local_file_list:
    print(file_name, end=' ')

    file_path = folder_to_sync + '/' + file_name

    if file_name in bucket_file_list:
        # Todo : compare modification dates
        print('(Not updated)')
    elif os.path.isfile(file_path):
        res = s3.upload_file(file_path, bucket_target, file_name)
        print('(New file)')
    else:
        print('(Skipped)')

print("Done")

# Delete files
print("Deleting removed files ...")
for file_name in bucket_file_list:
    print(file_name, end=' ')

    if file_name in local_file_list:
        print('(Still present)')
    else:
        s3.delete_object(Bucket=bucket_target, Key=file_name)
        print('(Deleted)')

print("Done")