send Kodi's watched history from a settings button

Not automatically on the service's first start any more: with several Kodi
installs, only the one whose history counts should send it. The button
("Send this Kodi's watched history to the server") asks first, shows progress
and can be cancelled; sending again is harmless, the server keeps newer state.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

main.py

@@ -338,6 +338,40 @@ def queryAPI(paramstring):
 
     #dialog.textviewer('Plot', 'Some movie plot.')
 
+def send_watched_history():
+    """
+    This Kodi's own watched history of the add-on to the server, which keeps
+    whatever it has that's newer. Meant for the Kodi whose history counts.
+    """
+    import history
+
+    dialog = xbmcgui.Dialog()
+    files = history.read_history()
+    if not files:
+        dialog.ok("sklk", "This Kodi has no watched history of the add-on.")
+        return
+    if not dialog.yesno("sklk", "Send this Kodi's watched history ({0} files) to the server?\n"
+                                "Newer state on the server stays.".format(len(files))):
+        return
+
+    progress = xbmcgui.DialogProgress()
+    progress.create("sklk", "Sending watched history...")
+
+    def on_progress(done):
+        progress.update(done * 100 // len(files))
+        return not progress.iscanceled()
+
+    try:
+        sent = history.send_history(files, on_progress)
+    finally:
+        progress.close()
+
+    if sent == len(files):
+        dialog.ok("sklk", "Sent the watched history of {0} files.".format(sent))
+    else:
+        dialog.ok("sklk", "Sent {0} of {1} files (stopped, or the server didn't answer).".format(sent, len(files)))
+
+
 def router(paramstring):
     """
     Router function that calls other functions
@@ -364,6 +398,9 @@ def router(paramstring):
         elif params['action'] == 'play':
             # Play a video from a provided URL.
             play_video(params['path'])
+        elif params['action'] == 'send_history':
+            # button in the add-on settings
+            send_watched_history()
         elif params['action'] == 'ignore':
             # do nothing, this is info item
             strVariable = "nothing"