Indroduce wait flag, update docs

README.md

@@ -187,10 +187,11 @@ if dl.completed:
   else:
       print('Hash is invalid')
 ```
-An example of using Pypdl object with `allow_reuse` set to `True` and custom logger:
+An example of using Pypdl object to get size of the files with `allow_reuse` set to `True` and custom logger:
 
 ```py
 import logging
+import time
 from pypdl import Pypdl
 
 urls = [
@@ -204,12 +205,27 @@ urls = [
 # create a custom logger
 logger = logging.getLogger('custom')
 
+size = []
+
 # create a pypdl object
 dl = Pypdl(allow_reuse=True, logger=logger)
 
 for url in urls:
-    dl.start(url, block=True)
+    dl.start(url, block=False)
+
+    # waiting for the size and other preliminary data to be retrived
+    while dl.wait:
+        time.sleep(0.1)
+
+    # get the size of the file and add it to size list
+    size.append(dl.size)
+
+    # do something 
+
+    while not dl.completed:
+        print(dl.progress)
 
+print(size)
 # shutdown the downloader, this is essential when allow_reuse is enabled
 dl.shutdown()
 
@@ -313,6 +329,8 @@ The `Pypdl` class represents a file downloader that can download a file from a g
 - `remaining`: The amount of data remaining to be downloaded, in bytes.
 - `failed`: A flag that indicates if the download failed.
 - `completed`: A flag that indicates if the download is complete.
+- `wait`: A flag indicating whether preliminary information (e.g., file size) has been retrieved.
+- `logger`: The logger object used for logging messages.
 
 #### Methods
 
@@ -379,6 +397,7 @@ The `PypdlFactory` class manages multiple instances of the `Pypdl` downloader. I
 - `completed`: A list of tuples where each tuple contains the URL of the download and the result of the download.
 - `failed`: A list of URLs for which the download failed.
 - `remaining`: A list of remaining download tasks.
+- `logger`: The logger object used for logging messages.
 
 #### Methods
 

pypdl/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "1.4.1"
+__version__ = "1.4.2"
 
 from .pypdl_manager import Pypdl
 from .pypdl_factory import PypdlFactory

pypdl/pypdl_factory.py

@@ -154,12 +154,11 @@ def _execute(self, tasks, display):
     def _add_future(self, instance, task, futures):
         self.logger.debug("Adding new task")
         url, *kwargs = task
-        instance._status = None
         kwargs = kwargs[0] if kwargs else {}
         kwargs.update({"block": False, "display": False, "overwrite": False})
         future = instance.start(url, **kwargs)
         futures[future] = (instance, url)
-        while instance._status is None:
+        while instance.wait:
             time.sleep(0.1)
         self.logger.debug("Added new task: %s", url)
 

pypdl/pypdl_manager.py

@@ -39,7 +39,6 @@ def __init__(
     ):
         self._pool = ThreadPoolExecutor(max_workers=2)
         self._workers = []
-        self._status = 0
         self._interrupt = Event()
         self._stop = False
         self._kwargs = {
@@ -58,6 +57,7 @@ def __init__(
         self.remaining = None
         self.failed = False
         self.completed = False
+        self.wait = True
         self.logger = logger
 
     def start(
@@ -99,7 +99,6 @@ def download():
             for i in range(retries + 1):
                 try:
                     _url = mirror_func() if i > 0 and callable(mirror_func) else url
-                    self._reset()
                     self.logger.debug("Downloading, url: %s attempt: %s", _url, (i + 1))
                     result = self._execute(
                         _url,
@@ -116,16 +115,18 @@ def download():
                             print(f"Time elapsed: {seconds_to_hms(self.time_spent)}")
                         return result
 
+                    self._reset()
                     time.sleep(3)
 
                 except Exception as e:
                     self.logger.error("(%s) [%s]", e.__class__.__name__, e)
 
-            self._status = 1
+            self.wait = False
             self.failed = True
             self.logger.debug("Download failed, url: %s", _url)
             return None
 
+        self._reset()
         if self._allow_reuse:
             future = self._pool.submit(download)
         else:
@@ -163,6 +164,7 @@ def _reset(self):
         self.remaining = None
         self.failed = False
         self.completed = False
+        self.wait = True
         self.logger.debug("Reseted download manager")
 
     def _execute(
@@ -175,7 +177,7 @@ def _execute(
         )
 
         if not overwrite and Path(file_path).exists():
-            self._status = 1
+            self.wait = False
             self.completed = True
             self.time_spent = time.time() - start_time
             self.logger.debug("File already exists, download completed")
@@ -197,7 +199,7 @@ def _execute(
         recent_queue = deque([0] * 12, maxlen=12)
         download_mode = "Multi-Segment" if multisegment else "Single-Segment"
         interval = 0.5
-        self._status = 1
+        self.wait = False
         self.logger.debug("Initiated waiting loop")
         with ScreenCleaner(display):
             while True: