Files
homelab_gamevault/statekeeper.py
2025-02-16 21:05:24 +01:00

119 lines
3.4 KiB
Python

import requests
import os
import sqlalchemy
import threading
from db import db, Download
from sqlalchemy import or_, and_
def _bytes_to_mb(size):
return size / (1024*1024)
def add_to_download_queue(url, path):
'''The download is added to the global queue and downloaded eventually'''
#_download(url, path)
thread = threading.Thread(target=_download, args=(url, path))
thread.start()
def add_to_task_queue(task):
'''Add a callback to background execution queue'''
#print("Executing tasks", task)
thread = threading.Thread(target=task)
thread.start()
#task()
def _download(url, path):
response = requests.get(url + "?path=" + path, stream=True)
# Check if the request was successful
if response.status_code == 200:
# Save the file locally
local_filename = os.path.join("./cache", path)
with open(local_filename, 'wb') as f:
for chunk in response.iter_content(chunk_size=8192): # Download in chunks
f.write(chunk)
print(f"File downloaded successfully as {local_filename}")
else:
raise AssertionError("Non-200 Response for:", url, path, response.status_code, response.text)
def log_begin_download(path, local_path, url):
session = db.session()
print("Current path", path)
path_exists = session.query(Download).filter(and_(Download.path==path, Download.finished==False)).first()
if path_exists:
print("DAFUG", path_exists)
print("WTF", path_exists.path)
raise AssertionError("ERROR: {} is already downloading.".format(path))
else:
print("Adding to download log:", path)
session.merge(Download(path=path, size=-1, type="download", local_path=local_path, url=url, finished=False))
session.commit()
db.close_session()
def log_end_download(path):
session = db.session()
obj = session.query(Download).filter(Download.path==path).first()
if not obj:
raise AssertionError("ERROR: {} is not downloading/cannot remove.".format(path))
else:
print("Removing from download log:", path)
obj.finished = True
session.merge(obj)
session.commit()
db.close_session()
def get_download_size(path):
session = db.session()
obj = session.query(Download).filter(Download.path==path).first()
if not obj :
print("Warning: Download-Object does no longe exist in DB. Returning -1")
return -1
elif obj.size != -1:
session.close()
return obj.size
# query size #
r = requests.get(obj.url, params={"path": path, "info": 1})
r.raise_for_status()
size = r.json()["size"]
obj.size = _bytes_to_mb(size)
session.merge(obj)
session.commit()
session.close()
return size
def get_percent_filled(path):
session = db.session()
obj = session.query(Download).filter(Download.path==path, Download.finished==False).first()
size = _bytes_to_mb(os.stat(obj.local_path).st_size)
total_size = get_download_size(obj.path)
session.close()
if total_size == 0:
return 0
return size / total_size * 100
def get_download(path=None):
session = db.session()
if path:
MIN_SIZE_PGBAR_LIMIT = 1024*1024*100 # 100mb
downloads = session.query(Download).filter(Download.size>MIN_SIZE_PGBAR_LIMIT, Download.finished==False).all()
else:
downloads = session.query(Download).filter(Download.finished==False).all()
session.close()
return downloads