Bridge Pattern

// 📺 Implementation Interface
class Device {
  isEnabled() { throw "implement!"; }
  enable() { throw "implement!"; }
  disable() { throw "implement!"; }
  setVolume(vol) { throw "implement!"; }
}

// Concrete Implementations
class TV extends Device {
  constructor() { super(); this.on = false; this.volume = 50; }
  isEnabled() { return this.on; }
  enable() { this.on = true; return "📺 TV is ON"; }
  disable() { this.on = false; return "📺 TV is OFF"; }
  setVolume(vol) { this.volume = vol; return `📺 Volume: ${vol}`; }
}

class Radio extends Device {
  constructor() { super(); this.on = false; this.volume = 30; }
  isEnabled() { return this.on; }
  enable() { this.on = true; return "📻 Radio is ON"; }
  disable() { this.on = false; return "📻 Radio is OFF"; }
  setVolume(vol) { this.volume = vol; return `📻 Volume: ${vol}`; }
}

// 🎮 Abstraction
class Remote {
  constructor(device) {
    this.device = device; // 🌉 Bridge!
  }
  togglePower() {
    return this.device.isEnabled() 
      ? this.device.disable() 
      : this.device.enable();
  }
  volumeUp() {
    return this.device.setVolume(this.device.volume + 10);
  }
}

// Refined Abstraction
class AdvancedRemote extends Remote {
  mute() {
    return this.device.setVolume(0) + " (Muted!)";
  }
}