core: add start delay option for slow PMSs by placing "delayed_start" inside Data folder

Contents/Code/__init__.py

@@ -70,7 +70,7 @@ def Start():
     ValidatePrefs()
     Log.Debug(config.full_version)
 
-    if not config.permissions_ok:
+    if config.initialized and not config.permissions_ok:
         Log.Error("Insufficient permissions on library folders:")
         for title, path in config.missing_permissions:
             Log.Error("Insufficient permissions on library %s, folder: %s" % (title, path))

Contents/Code/interface/main.py

@@ -1,6 +1,8 @@
 # coding=utf-8
 
-from subzero.constants import PREFIX, TITLE, ART
+import time
+
+from subzero.constants import PREFIX, TITLE, ART, START_DELAY
 from support.config import config
 from support.helpers import pad_title, timestamp, df, display_language
 from support.scheduler import scheduler
@@ -27,45 +29,56 @@ def fatality(randomize=None, force_title=None, header=None, message=None, only_r
                          no_history=no_history,
                          replace_parent=replace_parent, no_cache=True)
 
-    # always re-check permissions
-    config.refresh_permissions_status()
+    if config.initialized:
+        # always re-check permissions
+        config.refresh_permissions_status()
 
-    # always re-check enabled sections
-    config.refresh_enabled_sections()
+        # always re-check enabled sections
+        config.refresh_enabled_sections()
 
-    if config.lock_menu and not config.pin_correct:
-        oc.add(DirectoryObject(
-            key=Callback(PinMenu, randomize=timestamp()),
-            title=pad_title(_("Enter PIN")),
-            summary=_("The owner has restricted the access to this menu. Please enter the correct pin"),
-        ))
-        return oc
-
-    if not config.permissions_ok and config.missing_permissions:
-        if not isinstance(config.missing_permissions, list):
+        if config.lock_menu and not config.pin_correct:
             oc.add(DirectoryObject(
-                key=Callback(fatality, randomize=timestamp()),
-                title=pad_title(_("Insufficient permissions")),
-                summary=config.missing_permissions,
+                key=Callback(PinMenu, randomize=timestamp()),
+                title=pad_title(_("Enter PIN")),
+                summary=_("The owner has restricted the access to this menu. Please enter the correct pin"),
             ))
-        else:
-            for title, path in config.missing_permissions:
+            return oc
+
+        if not config.permissions_ok and config.missing_permissions:
+            if not isinstance(config.missing_permissions, list):
                 oc.add(DirectoryObject(
                     key=Callback(fatality, randomize=timestamp()),
                     title=pad_title(_("Insufficient permissions")),
-                    summary=_("Insufficient permissions on library %(title)s, folder: %(path)s",
-                              title=title,
-                              path=path),
+                    summary=config.missing_permissions,
                 ))
-        return oc
+            else:
+                for title, path in config.missing_permissions:
+                    oc.add(DirectoryObject(
+                        key=Callback(fatality, randomize=timestamp()),
+                        title=pad_title(_("Insufficient permissions")),
+                        summary=_("Insufficient permissions on library %(title)s, folder: %(path)s",
+                                  title=title,
+                                  path=path),
+                    ))
+            return oc
 
-    if not config.enabled_sections:
-        oc.add(DirectoryObject(
-            key=Callback(fatality, randomize=timestamp()),
-            title=pad_title(_("I'm not enabled!")),
-            summary=_("Please enable me for some of your libraries in your server settings; currently I do nothing"),
-        ))
-        return oc
+        if not config.enabled_sections:
+            oc.add(DirectoryObject(
+                key=Callback(fatality, randomize=timestamp()),
+                title=pad_title(_("I'm not enabled!")),
+                summary=_("Please enable me for some of your libraries in your server settings; currently I do nothing"),
+            ))
+            return oc
+    else:
+        if config.delay_system_queries:
+            elapsed = int(START_DELAY - (time.time() - config.start_delay_elapsed))
+            oc.add(DirectoryObject(
+                key=Callback(fatality, randomize=timestamp()),
+                title=pad_title(_("Finalizing ..."
+                                  if elapsed <= 0 else "Initializing, please wait %s seconds ..." % elapsed)),
+                summary=_("Start is delayed by %s seconds to cope with a slow PMS" % int(START_DELAY)),
+            ))
+            return oc
 
     if not only_refresh:
         if Dict["current_refresh_state"]:

Contents/Code/support/config.py

@@ -7,6 +7,7 @@ import sys
 import rarfile
 import jstyleson
 import datetime
+import time
 
 import subliminal
 import subliminal_patch
@@ -22,7 +23,7 @@ from subliminal.cli import MutexLock
 from subzero.lib.io import FileIO, get_viable_encoding
 from subzero.lib.dict import Dicked
 from subzero.util import get_root_path
-from subzero.constants import PLUGIN_NAME, PLUGIN_IDENTIFIER, MOVIE, SHOW, MEDIA_TYPE_TO_STRING
+from subzero.constants import PLUGIN_NAME, PLUGIN_IDENTIFIER, MOVIE, SHOW, MEDIA_TYPE_TO_STRING, START_DELAY
 from subzero.prefs import get_user_prefs, update_user_prefs
 from dogpile.cache.region import register_backend as register_cache_backend
 from lib import Plex
@@ -148,10 +149,15 @@ class Config(object):
     unrar = None
     adv_cfg_path = None
     use_custom_dns = False
+    delay_system_queries = False
 
     store_recently_played_amount = 40
 
     initialized = False
+    system_queries_done = False
+    base_init_done = False
+    system_queries_timer = None
+    start_delay_elapsed = None
 
     def initialize(self):
         self.libraries_root = os.path.abspath(os.path.join(get_root_path(), ".."))
@@ -169,6 +175,7 @@ class Config(object):
         self.set_log_paths()
         self.app_support_path = Core.app_support_path
         self.data_path = getattr(Data, "_core").storage.data_path
+        self.delay_system_queries = os.path.isfile(os.path.join(self.data_path, "delayed_start"))
         self.data_items_path = os.path.join(self.data_path, "DataItems")
         self.universal_plex_token = self.get_universal_plex_token()
         self.plex_token = os.environ.get("PLEXTOKEN", self.universal_plex_token)
@@ -205,8 +212,25 @@ class Config(object):
         self.missing_permissions = []
         self.include_exclude_sz_files = cast_bool(Prefs["subtitles.include_exclude_fs"])
         self.include_exclude_paths = self.parse_include_exclude_paths()
-        self.enabled_sections = self.check_enabled_sections()
-        self.permissions_ok = self.check_permissions()
+
+        self.system_queries_done = False
+
+        def system_queries():
+            self.enabled_sections = self.check_enabled_sections()
+            self.permissions_ok = self.check_permissions()
+            self.system_queries_done = True
+            self.system_queries_timer = None
+            if self.base_init_done:
+                self.initialized = True
+
+        if self.delay_system_queries:
+            if not self.system_queries_timer or not self.system_queries_timer.is_alive():
+                Log.Info("Waiting %s seconds until querying the system endpoints of your PMS" % START_DELAY)
+                Thread.CreateTimer(START_DELAY, system_queries)
+                self.start_delay_elapsed = time.time()
+        else:
+            system_queries()
+
         self.notify_executable = self.check_notify_executable()
         self.remove_hi = cast_bool(Prefs['subtitles.remove_hi'])
         self.remove_tags = cast_bool(Prefs['subtitles.remove_tags'])
@@ -228,7 +252,11 @@ class Config(object):
         self.embedded_auto_extract = cast_bool(Prefs["subtitles.embedded.autoextract"])
         self.ietf_as_alpha3 = cast_bool(Prefs["subtitles.language.ietf_normalize"])
         self.use_custom_dns = cast_bool(Prefs['use_custom_dns'])
-        self.initialized = True
+
+        self.base_init_done = True
+
+        if self.system_queries_done:
+            self.initialized = True
 
     def migrate_prefs(self):
         config_version = 0 if "config_version" not in Dict else Dict["config_version"]

Contents/Libraries/Shared/subzero/constants.py

@@ -15,6 +15,7 @@ ICON     = 'icon-default.jpg'
 ICON_SUB = 'icon-sub.jpg'
 
 DEFAULT_TIMEOUT = 15
+START_DELAY = 30.0
 
 
 # media types as on https://github.com/Arcanemagus/plex-api/wiki/MediaTypes