add bride pattern

Author: cosmos-sajal

structural/bride_pattern.py

@@ -0,0 +1,99 @@
+# https://refactoring.guru/design-patterns/bridge
+
+from abc import ABCMeta, abstractmethod
+
+
+class EntertainmentDevice(metaclass=ABCMeta):
+    def __init__(self):
+        self.volume_level = 0
+
+    def press_button_left(self):
+        self.volume_level -= 1
+        print('Volume is decreased')
+
+    def press_button_right(self):
+        self.volume_level += 1
+        print('Volume is increased')
+
+    @abstractmethod
+    def press_button_up(self):
+        pass
+
+    @abstractmethod
+    def press_button_down(self):
+        pass
+
+
+class TVDevice(EntertainmentDevice):
+    def press_button_up(self):
+        print("next channel")
+
+    def press_button_down(self):
+        print("previous channel")
+
+
+class DVDDevice(EntertainmentDevice):
+    def press_button_up(self):
+        print("next track")
+
+    def press_button_down(self):
+        print("previous track")
+
+
+class Remote():
+    def __init__(self, device):
+        self.device = device
+
+    def press_button_left(self):
+        self.device.press_button_left()
+
+    def press_button_right(self):
+        self.device.press_button_right()
+
+    def press_button_up(self):
+        self.device.press_button_up()
+
+    def press_button_down(self):
+        self.device.press_button_down()
+
+    @abstractmethod
+    def press_button_middle(self):
+        pass
+
+
+class TVRemote(Remote):
+    def __init__(self, device):
+        super(TVRemote, self).__init__(device)
+
+    def press_button_middle(self):
+        print("TV was muted")
+
+
+class DVDRemote(Remote):
+    def __init__(self, device):
+        super(DVDRemote, self).__init__(device)
+
+    def press_button_middle(self):
+        print("DVD was paused")
+
+
+device = int(input(
+    "Which kind of device? 1.TV 2.DVD :"))
+remote = int(input(
+    "Which kind of remote? 1.TV remote 2.DVD remote :"))
+
+if device == 1:
+    device = TVDevice()
+else:
+    device = DVDDevice()
+
+if remote == 1:
+    remote = TVRemote(device)
+else:
+    remote = DVDRemote(device)
+
+remote.press_button_left()
+remote.press_button_right()
+remote.press_button_up()
+remote.press_button_down()
+remote.press_button_middle()