From 373d34a56ed844c8543483d0db6e8b472d471079 Mon Sep 17 00:00:00 2001
From: mcarlton00 <mcarlton00@gmail.com>
Date: Thu, 7 Mar 2024 12:41:56 -0500
Subject: [PATCH] Add automatic database migration for Kodi Omega

---
 jellyfin_kodi/library.py              |  9 ++++++
 jellyfin_kodi/objects/kodi/movies.py  | 40 +++++++++++++++++++++++----
 jellyfin_kodi/objects/kodi/queries.py | 16 +++++++++--
 3 files changed, 58 insertions(+), 7 deletions(-)

diff --git a/jellyfin_kodi/library.py b/jellyfin_kodi/library.py
index 9de23d67..7e6bcf57 100644
--- a/jellyfin_kodi/library.py
+++ b/jellyfin_kodi/library.py
@@ -11,6 +11,7 @@ from six.moves import queue as Queue
 from kodi_six import xbmc, xbmcgui
 
 from .objects import Movies, TVShows, MusicVideos, Music
+from .objects.kodi import Movies as KodiDb
 from .database import Database, jellyfin_db, get_sync, save_sync
 from .full_sync import FullSync
 from .views import Views
@@ -122,6 +123,14 @@ class Library(threading.Thread):
                 # Make sure we always have a version in the database
                 db.add_version((TARGET_DB_VERSION))
 
+        # Video Database Migrations
+        with Database('video') as videodb:
+            vid_db = KodiDb(videodb.cursor)
+            if vid_db.migrations():
+                LOG.info('changes detected, reloading skin')
+                xbmc.executebuiltin('UpdateLibrary(video)')
+                xbmc.executebuiltin('ReloadSkin()')
+
     @stop
     def service(self):
 
diff --git a/jellyfin_kodi/objects/kodi/movies.py b/jellyfin_kodi/objects/kodi/movies.py
index de1da330..10172c02 100644
--- a/jellyfin_kodi/objects/kodi/movies.py
+++ b/jellyfin_kodi/objects/kodi/movies.py
@@ -50,7 +50,7 @@ class Movies(Kodi):
 
     def add_videoversion(self, *args):
         self.cursor.execute(QU.check_video_version)
-        if self.cursor.fetchone()[0]==1 : 
+        if self.cursor.fetchone()[0] == 1:
             self.cursor.execute(QU.add_video_version, args)
 
     def update(self, *args):
@@ -61,11 +61,9 @@ class Movies(Kodi):
         self.cursor.execute(QU.delete_movie, (kodi_id,))
         self.cursor.execute(QU.delete_file, (file_id,))
         self.cursor.execute(QU.check_video_version)
-        if self.cursor.fetchone()[0]==1 : 
+        if self.cursor.fetchone()[0] == 1:
             self.cursor.execute(QU.delete_video_version, (file_id,))
 
-
-
     def get_rating_id(self, *args):
 
         try:
@@ -140,4 +138,36 @@ class Movies(Kodi):
         self.cursor.execute(QU.delete_movie_set, args)
 
     def delete_boxset(self, *args):
-        self.cursor.execute(QU.delete_set, args)
\ No newline at end of file
+        self.cursor.execute(QU.delete_set, args)
+
+    def migrations(self):
+        '''
+        Used to trigger required database migrations for new versions
+        '''
+        self.cursor.execute(QU.get_version)
+        version_id = self.cursor.fetchone()[0]
+        changes = False
+
+        # Will run every time Kodi starts, but will be fast enough on
+        # subsequent runs to not be a meaningful delay
+        if version_id >= 131:
+            changes = self.omega_migration()
+
+        return changes
+
+    def omega_migration(self):
+        '''
+        Adds a video version for all existing movies
+        '''
+        LOG.info('Starting migration for Omega database changes')
+        # Tracks if this migration made any changes
+        changes = False
+        self.cursor.execute(QU.get_missing_versions)
+
+        # Sets all existing movies without a version to standard version
+        for entry in self.cursor.fetchall():
+            self.add_videoversion(entry[0], entry[1], "movie", "0", 40400)
+            changes = True
+
+        LOG.info('Omega database migration is complete')
+        return changes
diff --git a/jellyfin_kodi/objects/kodi/queries.py b/jellyfin_kodi/objects/kodi/queries.py
index 49d5b27e..02069d8c 100644
--- a/jellyfin_kodi/objects/kodi/queries.py
+++ b/jellyfin_kodi/objects/kodi/queries.py
@@ -322,7 +322,7 @@ VALUES          (?, ?, ?, ?, ?)
 check_video_version = """
 SELECT COUNT(name) FROM sqlite_master WHERE type='table' AND name='videoversion'
 """
-add_video_version_obj = ["{FileId}","{MovieId}","movie","0",40400]
+add_video_version_obj = ["{FileId}", "{MovieId}", "movie", "0", 40400]
 add_musicvideo = """
 INSERT INTO     musicvideo(idMVideo, idFile, c00, c04, c05, c06, c07, c08, c09, c10,
                 c11, c12, premiered)
@@ -407,7 +407,7 @@ VALUES                      (?, ?, ?)
 # Resulting in duplicates
 insert_link_if_not_exists = """
 INSERT INTO                 {LinkType}(actor_id, media_id, media_type)
-SELECT ?, ?, ? 
+SELECT ?, ?, ?
 WHERE NOT EXISTS(SELECT 1 FROM {LinkType} WHERE actor_id = ? AND media_id = ? AND media_type = ?)
 """
 update_movie = """
@@ -581,3 +581,15 @@ WHERE           media_id = ?
 AND             media_type = ?
 AND             type LIKE ?
 """
+get_missing_versions = """
+SELECT          idFile,idMovie
+FROM            movie
+WHERE NOT EXISTS (
+    SELECT NULL FROM videoversion
+    WHERE       videoversion.idMedia = movie.idMovie
+)
+"""
+get_version = """
+SELECT      idVersion
+FROM        version
+"""