from google.cloud import storage
# from oauth2client.service_account import ServiceAccountCredentials
import os
import firebase_admin
from firebase_admin import credentials
from firebase_admin import db
import datetime

def upload_file_to_storage(uid, field_id, date, source_file_name, destination_file_name, expire_minutes=15):
    """
    Uploads a field's file to the storage bucket.

    :param uid:
    :param field_id:
    :param date:
    :param source_file_name: full path
    :param destination_file_name: just the final file name with extension if present
    :param expire_minutes: (OPTIONAL; defaults to 15 minutes)
    :return: storage_url
    """
    try:
        cred = credentials.Certificate('servicekey.json')
        firebase_admin.initialize_app(cred, {'databaseURL': 'https://farmbase-b2f7e-31c0c.firebaseio.com/'})
    except:
        print('initialized')

    source_url = source_file_name
    storage_client = storage.Client.from_service_account_json('servicekey.json')
    bucket_name = 'farmbase-b2f7e.appspot.com'
    destination_blob_name = 'PaidMonitoredFields/'+uid+'/'+field_id+'/'+date+'/' + destination_file_name
    bucket = storage_client.get_bucket(bucket_name)
    blob = bucket.blob(destination_blob_name)
    storage_url = 'https://farmonaut.com/Images/data_not_found.jpg'
    try:
        blob.upload_from_filename(source_url)
        storage_url = blob.generate_signed_url(version="v4",expiration = datetime.timedelta(minutes=expire_minutes), method="GET")
    except:
        print('not there')
    return storage_url