markov: Add some more log messages

Nothing major, just more log messages.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

plugins/markov.py

@@ -57,11 +57,11 @@ class Chain:
             return
         self.__touch()
         self.__load()
+        self.__dirty = True
         for fragment in windows(parts + [None], self.order + 1):
             head = fragment[0:-1]
             tail = fragment[-1]
             self.__cache[" ".join(head)][tail] += 1
-        self.__dirty = True
 
     def get(self, key: str) -> dict[str | None, int]:
         if self.__cache:
@@ -131,6 +131,8 @@ class Chain:
             with open(self.path, "w") as fp:
                 json.dump(obj, fp)
             self.__dirty = False
+        else:
+            log.info("Chain %s is not dirty, not saving", self.path)
 
     def clear_cache(self):
         self.__cache.clear()
@@ -257,7 +259,7 @@ class Markov(Plugin):
 
     async def __save_loop(self):
         while True:
-            log.debug("Pruning inactive markov chains in %s seconds", self.save_every)
+            log.debug("Saving markov chains in %s seconds", self.save_every)
             await asyncio.sleep(self.save_every)
             retain_after = asyncio.get_running_loop().time() - self.save_every
             await self.save(retain_after=retain_after)
@@ -277,6 +279,7 @@ class Markov(Plugin):
                 for chains in self.__chains.values():
                     for chain in chains.values():
                         # Start the save in a new process, in a new task.
+                        log.debug("Starting process to save %s", chain.path)
                         coro = loop.run_in_executor(pool, chain.save)
                         coros += [coro]
                         # Prune