Add prepare and start blocks to App

CHANGELOG.md

@@ -12,6 +12,7 @@ We follow [Semantic Versions](https://semver.org/).
 - Add class `App` - the main application class
 - Add class `SlowStartRewatchException` - the base class for exceptions
 - Set up exception handling
+- Add `prepare` and `start` blocks to `App`
 
 
 ## Version 0.1.0

slow_start_rewatch/app.py

@@ -14,4 +14,13 @@ def __init__(self, config: Config) -> None:
 
     def run(self) -> None:
         """Runs the application."""
+        self.prepare()
+        self.start()
+
+    def prepare(self) -> None:
+        """Make the preparations for the main run."""
+        click.echo("Preparing the Slow Start Rewatch...")
+
+    def start(self) -> None:
+        """Start the main run."""
         click.echo("Starting the Slow Start Rewatch...")