refactored redis functions into dedicated RedisArchivist class

tubearchivist/home/apps.py

@@ -4,7 +4,7 @@ import os
 
 from django.apps import AppConfig
 from home.src.config import AppConfig as ArchivistConfig
-from home.src.helper import del_message, set_message
+from home.src.helper import RedisArchivist
 from home.src.index_management import index_check
 
 
@@ -15,11 +15,14 @@ def sync_redis_state():
     config_handler.load_new_defaults()
     config = config_handler.config
     sort_order = config["archive"]["sort"]
-    set_message("sort_order", sort_order, expire=False)
+    redis_archivist = RedisArchivist()
+    redis_archivist.set_message("sort_order", sort_order, expire=False)
     hide_watched = bool(int(config["archive"]["hide_watched"]))
-    set_message("hide_watched", hide_watched, expire=False)
+    redis_archivist.set_message("hide_watched", hide_watched, expire=False)
     show_subed_only = bool(int(config["archive"]["show_subed_only"]))
-    set_message("show_subed_only", show_subed_only, expire=False)
+    redis_archivist.set_message(
+        "show_subed_only", show_subed_only, expire=False
+    )
 
 
 def make_folders():
@@ -39,7 +42,7 @@ def release_lock():
     """make sure there are no leftover locks set in redis on container start"""
     all_locks = ["manual_import", "downloading", "dl_queue", "dl_queue_id"]
     for lock in all_locks:
-        response = del_message(lock)
+        response = RedisArchivist().del_message(lock)
         if response:
             print("deleted leftover key from redis: " + lock)
 

tubearchivist/home/src/config.py

@@ -8,7 +8,7 @@ Functionality:
 import json
 import os
 
-from home.src.helper import get_message, set_message
+from home.src.helper import RedisArchivist
 
 
 class AppConfig:
@@ -51,7 +51,7 @@ class AppConfig:
     @staticmethod
     def get_config_redis():
         """read config json set from redis to overwrite defaults"""
-        config = get_message("config")
+        config = RedisArchivist().get_message("config")
         if not list(config.values())[0]:
             return False
 
@@ -73,7 +73,7 @@ class AppConfig:
                 config_dict, config_value = key.split(".")
                 config[config_dict][config_value] = to_write
 
-        set_message("config", config, expire=False)
+        RedisArchivist().set_message("config", config, expire=False)
 
     def load_new_defaults(self):
         """check config.json for missing defaults"""
@@ -100,4 +100,4 @@ class AppConfig:
                     needs_update = True
 
         if needs_update:
-            set_message("config", redis_config, expire=False)
+            RedisArchivist().set_message("config", redis_config, expire=False)

tubearchivist/home/src/download.py

@@ -16,10 +16,10 @@ import yt_dlp as youtube_dl
 from home.src.config import AppConfig
 from home.src.helper import (
     DurationConverter,
+    RedisArchivist,
     RedisQueue,
     clean_string,
     ignore_filelist,
-    set_message,
 )
 from home.src.index import YoutubeChannel, index_new_video
 
@@ -43,7 +43,7 @@ class PendingList:
                 "title": "Adding to download queue.",
                 "message": "Extracting lists",
             }
-            set_message("progress:download", mess_dict)
+            RedisArchivist().set_message("progress:download", mess_dict)
             # extract
             url = entry["url"]
             url_type = entry["type"]
@@ -98,7 +98,7 @@ class PendingList:
                 "title": "Adding to download queue.",
                 "message": "Processing IDs...",
             }
-            set_message("progress:download", mess_dict)
+            RedisArchivist().set_message("progress:download", mess_dict)
         # add last newline
         bulk_list.append("\n")
         query_str = "\n".join(bulk_list)
@@ -264,7 +264,7 @@ class PendingList:
             "title": "Added to ignore list",
             "message": "",
         }
-        set_message("progress:download", mess_dict)
+        RedisArchivist().set_message("progress:download", mess_dict)
         if not request.ok:
             print(request)
 
@@ -350,7 +350,7 @@ class ChannelSubscription:
         for channel in all_channels:
             channel_id = channel["channel_id"]
             last_videos = self.get_last_youtube_videos(channel_id)
-            set_message(
+            RedisArchivist().set_message(
                 "progress:download",
                 {
                     "status": "rescan",
@@ -468,7 +468,7 @@ class VideoDownloader:
             "title": title,
             "message": message,
         }
-        set_message("progress:download", mess_dict)
+        RedisArchivist().set_message("progress:download", mess_dict)
 
     def dl_single_vid(self, youtube_id):
         """download single video"""

tubearchivist/home/src/helper.py

@@ -13,8 +13,6 @@ import unicodedata
 import redis
 import requests
 
-REDIS_HOST = os.environ.get("REDIS_HOST")
-
 
 def get_total_hits(index, es_url, match_field):
     """get total hits from index"""
@@ -82,52 +80,59 @@ def process_url_list(url_str):
     return youtube_ids
 
 
-def set_message(key, message, expire=True):
+class RedisArchivist:
+    """collection of methods to interact with redis"""
+
+    REDIS_HOST = os.environ.get("REDIS_HOST")
+
+    def __init__(self):
+        self.redis_connection = redis.Redis(host=self.REDIS_HOST)
+
+    def set_message(self, key, message, expire=True):
         """write new message to redis"""
-    redis_connection = redis.Redis(host=REDIS_HOST)
+        self.redis_connection.execute_command(
-    redis_connection.execute_command("JSON.SET", key, ".", json.dumps(message))
+            "JSON.SET", key, ".", json.dumps(message)
+        )
+
         if expire:
-        redis_connection.execute_command("EXPIRE", key, 20)
+            self.redis_connection.execute_command("EXPIRE", key, 20)
 
-
+    def get_message(self, key):
-def get_message(key):
+        """get message dict from redis"""
-    """get any message from JSON key"""
+        reply = self.redis_connection.execute_command("JSON.GET", key)
-    redis_connection = redis.Redis(host=REDIS_HOST)
-    reply = redis_connection.execute_command("JSON.GET", key)
         if reply:
             json_str = json.loads(reply)
         else:
             json_str = {"status": False}
+
         return json_str
 
-
+    def del_message(self, key):
-def del_message(key):
         """delete key from redis"""
-    redis_connection = redis.Redis(host=REDIS_HOST)
+        response = self.redis_connection.execute_command("DEL", key)
-    response = redis_connection.execute_command("DEL", key)
         return response
 
-
+    def get_lock(self, lock_key):
-def get_dl_message(cache_dir):
-    """get latest message if available"""
-    redis_connection = redis.Redis(host=REDIS_HOST)
-    reply = redis_connection.execute_command("JSON.GET", "progress:download")
-    if reply:
-        json_str = json.loads(reply)
-    elif json_str := monitor_cache_dir(cache_dir):
-        json_str = monitor_cache_dir(cache_dir)
-    else:
-        json_str = {"status": False}
-    return json_str
-
-
-def get_lock(lock_key):
         """handle lock for task management"""
-    redis_lock = redis.Redis(host=REDIS_HOST).lock(lock_key)
+        redis_lock = self.redis_connection.lock(lock_key)
         return redis_lock
 
+    def get_dl_message(self, cache_dir):
+        """get latest download progress message if available"""
+        reply = self.redis_connection.execute_command(
+            "JSON.GET", "progress:download"
+        )
+        if reply:
+            json_str = json.loads(reply)
+        elif json_str := self.monitor_cache_dir(cache_dir):
+            json_str = self.monitor_cache_dir(cache_dir)
+        else:
+            json_str = {"status": False}
 
-def monitor_cache_dir(cache_dir):
+        return json_str
+
+    @staticmethod
+    def monitor_cache_dir(cache_dir):
         """
         look at download cache dir directly as alternative progress info
         """
@@ -151,9 +156,11 @@ def monitor_cache_dir(cache_dir):
 class RedisQueue:
     """dynamically interact with the download queue in redis"""
 
+    REDIS_HOST = os.environ.get("REDIS_HOST")
+
     def __init__(self, key):
         self.key = key
-        self.conn = redis.Redis(host=REDIS_HOST)
+        self.conn = redis.Redis(host=self.REDIS_HOST)
 
     def get_all(self):
         """return all elements in list"""

tubearchivist/home/src/reindex.py

@@ -18,11 +18,10 @@ import requests
 from home.src.config import AppConfig
 from home.src.download import ChannelSubscription, PendingList, VideoDownloader
 from home.src.helper import (
+    RedisArchivist,
     clean_string,
-    get_message,
     get_total_hits,
     ignore_filelist,
-    set_message,
 )
 from home.src.index import YoutubeChannel, YoutubeVideo, index_new_video
 
@@ -128,7 +127,7 @@ class Reindex:
                 "title": "Scraping all youtube channels",
                 "message": message,
             }
-            set_message("progress:download", mess_dict)
+            RedisArchivist().set_message("progress:download", mess_dict)
             channel_index = YoutubeChannel(channel_id)
             subscribed = channel_index.channel_dict["channel_subscribed"]
             channel_index.channel_dict = channel_index.build_channel_dict(
@@ -472,7 +471,7 @@ def reindex_old_documents():
     """daily refresh of old documents"""
     # check needed last run
     now = int(datetime.now().strftime("%s"))
-    last_reindex = get_message("last_reindex")
+    last_reindex = RedisArchivist().get_message("last_reindex")
     if isinstance(last_reindex, int) and now - last_reindex < 60 * 60 * 24:
         return
     # continue if needed
@@ -480,4 +479,4 @@ def reindex_old_documents():
     reindex_handler.check_outdated()
     reindex_handler.reindex()
     # set timestamp
-    set_message("last_reindex", now, expire=False)
+    RedisArchivist().set_message("last_reindex", now, expire=False)

tubearchivist/home/tasks.py

@@ -9,7 +9,7 @@ import os
 from celery import Celery, shared_task
 from home.src.config import AppConfig
 from home.src.download import ChannelSubscription, PendingList, VideoDownloader
-from home.src.helper import RedisQueue, del_message, get_lock, set_message
+from home.src.helper import RedisArchivist, RedisQueue
 from home.src.index_management import backup_all_indexes, restore_from_backup
 from home.src.reindex import ManualImport, reindex_old_documents
 
@@ -39,7 +39,7 @@ def download_pending():
     """download latest pending videos"""
 
     have_lock = False
-    my_lock = get_lock("downloading")
+    my_lock = RedisArchivist().get_lock("downloading")
 
     try:
         have_lock = my_lock.acquire(blocking=False)
@@ -65,7 +65,7 @@ def download_single(youtube_id):
 
     # start queue if needed
     have_lock = False
-    my_lock = get_lock("downloading")
+    my_lock = RedisArchivist().get_lock("downloading")
 
     try:
         have_lock = my_lock.acquire(blocking=False)
@@ -100,7 +100,7 @@ def run_manual_import():
 
     print("starting media file import")
     have_lock = False
-    my_lock = get_lock("manual_import")
+    my_lock = RedisArchivist().get_lock("manual_import")
 
     try:
         have_lock = my_lock.acquire(blocking=False)
@@ -133,7 +133,7 @@ def run_restore_backup():
 def kill_dl(task_id):
     """kill download worker task by ID"""
     app.control.revoke(task_id, terminate=True)
-    _ = del_message("dl_queue_id")
+    _ = RedisArchivist().del_message("dl_queue_id")
     RedisQueue("dl_queue").clear()
 
     # clear cache
@@ -149,4 +149,4 @@ def kill_dl(task_id):
         "title": "Brutally killing download queue",
         "message": "",
     }
-    set_message("progress:download", mess_dict)
+    RedisArchivist().set_message("progress:download", mess_dict)

tubearchivist/home/views.py

@@ -14,13 +14,7 @@ from django.utils.http import urlencode
 from django.views import View
 from home.src.config import AppConfig
 from home.src.download import ChannelSubscription, PendingList
-from home.src.helper import (
+from home.src.helper import RedisArchivist, RedisQueue, process_url_list
-    RedisQueue,
-    get_dl_message,
-    get_message,
-    process_url_list,
-    set_message,
-)
 from home.src.index import WatchState
 from home.src.searching import Pagination, SearchForm, SearchHandler
 from home.tasks import (
@@ -114,8 +108,8 @@ class HomeView(View):
         """read needed values from redis"""
         config_handler = AppConfig().config
         colors = config_handler["application"]["colors"]
-        sort_order = get_message("sort_order")
+        sort_order = RedisArchivist().get_message("sort_order")
-        hide_watched = get_message("hide_watched")
+        hide_watched = RedisArchivist().get_message("hide_watched")
         return colors, sort_order, hide_watched
 
     @staticmethod
@@ -208,7 +202,7 @@ class DownloadView(View):
                     "title": "Failed to extract links.",
                     "message": "Not a video, channel or playlist ID or URL",
                 }
-                set_message("progress:download", mess_dict)
+                RedisArchivist().set_message("progress:download", mess_dict)
                 return redirect("downloads")
 
             print(youtube_ids)
@@ -322,7 +316,7 @@ class ChannelView(View):
             "query": {"match_all": {}},
             "sort": [{"channel_name.keyword": {"order": "asc"}}],
         }
-        show_subed_only = get_message("show_subed_only")
+        show_subed_only = RedisArchivist().get_message("show_subed_only")
         if show_subed_only:
             data["query"] = {"term": {"channel_subscribed": {"value": True}}}
         search = SearchHandler(url, data)
@@ -442,7 +436,7 @@ def progress(request):
     """endpoint for download progress ajax calls"""
     config = AppConfig().config
     cache_dir = config["application"]["cache_dir"]
-    json_data = get_dl_message(cache_dir)
+    json_data = RedisArchivist().get_dl_message(cache_dir)
     return JsonResponse(json_data)
 
 
@@ -524,7 +518,7 @@ class PostData:
         running = download_pending.delay()
         task_id = running.id
         print("set task id: " + task_id)
-        set_message("dl_queue_id", task_id, expire=False)
+        RedisArchivist().set_message("dl_queue_id", task_id, expire=False)
         return {"success": True}
 
     def queue_handler(self):
@@ -534,7 +528,7 @@ class PostData:
             print("stopping download queue")
             RedisQueue("dl_queue").clear()
         elif to_execute == "kill":
-            task_id = get_message("dl_queue_id")
+            task_id = RedisArchivist().get_message("dl_queue_id")
             print("brutally killing " + task_id)
             kill_dl(task_id)
 
@@ -552,21 +546,25 @@ class PostData:
     def sort_order(self):
         """change the sort between published to downloaded"""
         sort_order = self.exec_val
-        set_message("sort_order", sort_order, expire=False)
+        RedisArchivist().set_message("sort_order", sort_order, expire=False)
         return {"success": True}
 
     def hide_watched(self):
         """toggle if to show watched vids or not"""
         hide_watched = bool(int(self.exec_val))
         print(f"hide watched: {hide_watched}")
-        set_message("hide_watched", hide_watched, expire=False)
+        RedisArchivist().set_message(
+            "hide_watched", hide_watched, expire=False
+        )
         return {"success": True}
 
     def show_subed_only(self):
         """show or hide subscribed channels only on channels page"""
         show_subed_only = bool(int(self.exec_val))
         print(f"show subed only: {show_subed_only}")
-        set_message("show_subed_only", show_subed_only, expire=False)
+        RedisArchivist().set_message(
+            "show_subed_only", show_subed_only, expire=False
+        )
         return {"success": True}
 
     def dlnow(self):
@@ -576,7 +574,7 @@ class PostData:
         running = download_single.delay(youtube_id=youtube_id)
         task_id = running.id
         print("set task id: " + task_id)
-        set_message("dl_queue_id", task_id, expire=False)
+        RedisArchivist().set_message("dl_queue_id", task_id, expire=False)
         return {"success": True}
 
     @staticmethod