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hassio-google-drive-backup/backup/model/syncer.py

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+from typing import List
+
+from injector import inject, singleton
+
+from .coordinator import Coordinator
+from backup.time import Time
+from backup.worker import Worker, Trigger
+from backup.logger import getLogger
+from backup.exceptions import PleaseWait
+
+logger = getLogger(__name__)
+
+
+@singleton
+class Scyncer(Worker):
+    @inject
+    def __init__(self, time: Time, coord: Coordinator, triggers: List[Trigger]):
+        super().__init__("Sync Worker", self.checkforSync, time, 0.5)
+        self.coord = coord
+        self.triggers: List[Trigger] = triggers
+        self._time = time
+
+    async def checkforSync(self):
+        try:
+            doSync = False
+            for trigger in self.triggers:
+                if await trigger.check():
+                    logger.debug("Sync requested by " + str(trigger.name()))
+                    doSync = True
+            if doSync:
+                while self.coord.isSyncing():
+                    await self._time.sleepAsync(3)
+                await self.coord.sync()
+        except PleaseWait:
+            # Ignore this, since it means a sync already started (unavilable race condition)
+            pass