chapter 1

Author: rebuild-123

README.md

@@ -1,6 +1,6 @@
 # Python Head First Design Patterns 
 ## Chapters 
-[chapter 1](https://github.com/rebuild-123/Python-Head-First-Design-Patterns/tree/main/strategy)-done (Only challenge has no translation.)  
+[chapter 1](https://github.com/rebuild-123/Python-Head-First-Design-Patterns/tree/main/strategy)-done 
 [chapter 2](https://github.com/rebuild-123/Python-Head-First-Design-Patterns/tree/main/observer)-done (Only swing has no translation.) 
 [chapter 3](https://github.com/rebuild-123/Python-Head-First-Design-Patterns/tree/main/decorator)-done (Only io has no translation.) 
 [chapter 4](https://github.com/rebuild-123/Python-Head-First-Design-Patterns/tree/main/factory)-done 

strategy/challenge/BasicCameraApp.py

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+from PhoneCameraApp import PhoneCameraApp
+
+
+class BasicCameraApp(PhoneCameraApp):
+ def edit(self) -> None:
+ print("Basic editing features")

strategy/challenge/CameraPlusApp.py

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+from PhoneCameraApp import PhoneCameraApp
+
+
+class CameraPlusApp(PhoneCameraApp):
+ def edit(self) -> None:
+ print("Extra snazzy photo editing features")

strategy/challenge/Email.py

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+from ShareStrategy import ShareStrategy
+
+
+class Email(ShareStrategy):
+ def share(self) -> None:
+ print("I'm emailing the photo")

strategy/challenge/PhoneCameraApp.py

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+from abc import ABC, abstractmethod
+
+from ShareStrategy import ShareStrategy
+
+
+class PhoneCameraApp(ABC):
+ shareStrategy: ShareStrategy
+ 
+ def setShareStrategy(self, shareStrategy: ShareStrategy) -> None:
+ self.shareStrategy = shareStrategy
+ 
+ def share(self) -> None:
+ self.shareStrategy.share()
+ 
+ def take(self) -> None:
+ print("Taking the photo")
+ 
+ def save(self) -> None:
+ print("Saving the photo")
+ 
+ @abstractmethod
+ def edit(self) -> None:
+ pass

strategy/challenge/PhotoWithPhone.py

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+import re
+import sys
+
+from BasicCameraApp import BasicCameraApp
+from Email import Email
+from PhoneCameraApp import PhoneCameraApp
+from Social import Social
+from Txt import Txt
+
+
+class PhotoWithPhone:
+ @staticmethod
+ def main(*args):
+ cameraApp: PhoneCameraApp = BasicCameraApp()
+ share: str = PhotoWithPhone.getSharing()
+ if re.match(r'3\.[1-9][0-9]\.', sys.version[:5]):
+ # Only for python 3.10 and later
+ match share:
+ case "t": cameraApp.setShareStrategy(Txt())
+ case "e": cameraApp.setShareStrategy(Email())
+ case "s": cameraApp.setShareStrategy(Social())
+ case _: cameraApp.setShareStrategy(Txt())
+ else:
+ if share == "t": cameraApp.setShareStrategy(Txt())
+ elif share == "e": cameraApp.setShareStrategy(Email())
+ elif share == "s": cameraApp.setShareStrategy(Social())
+ else: cameraApp.setShareStrategy(Txt())
+ cameraApp.take()
+ cameraApp.edit()
+ cameraApp.save()
+ cameraApp.share()
+ 
+ @staticmethod
+ def getSharing() -> str:
+ print("Share with txt (t), email (e), or social media (s)?")
+ appName = input()
+ return appName
+ 
+if __name__ == "__main__":
+ PhotoWithPhone.main()

strategy/challenge/ShareStrategy.py

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+class ShareStrategy:
+ def share(self) -> None:
+ pass

strategy/challenge/Social.py

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+from ShareStrategy import ShareStrategy
+
+
+class Social(ShareStrategy):
+ def share(self) -> None:
+ print("I'm posting the photo on social media")

strategy/challenge/Txt.py

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+from ShareStrategy import ShareStrategy
+
+
+class Txt(ShareStrategy):
+ def share(self) -> None:
+ print("I'm txting the photo")