From 519f625f9b1b68cdca43b909d34fea4a2ae0abd7 Mon Sep 17 00:00:00 2001
From: Alexander Baranov <baranovas@vtb.ru>
Date: Sat, 24 Jan 2026 12:48:39 +0300
Subject: [PATCH] homework: extract print_status into a separate trait

---
 smart-house/README.md           |  2 +-
 smart-house/src/device.rs       | 11 +++++++----
 smart-house/src/house.rs        |  6 ++++--
 smart-house/src/lib.rs          |  2 ++
 smart-house/src/main.rs         |  2 +-
 smart-house/src/print_status.rs |  3 +++
 smart-house/src/room.rs         |  6 ++++--
 7 files changed, 22 insertions(+), 10 deletions(-)
 create mode 100644 smart-house/src/print_status.rs

diff --git a/smart-house/README.md b/smart-house/README.md
index e0e29d8..6f917e8 100644
--- a/smart-house/README.md
+++ b/smart-house/README.md
@@ -89,7 +89,7 @@
       соответствующими ключами.
 
 Доработать формирование отчёта:
-- [ ] Вынести метод формирования отчёта в трейт и реализовать его на всех типах, которые возвращают отчёт: умное устройство,
+- [x] Вынести метод формирования отчёта в трейт и реализовать его на всех типах, которые возвращают отчёт: умное устройство,
       комната, дом.
 
 Привести тесты в соответствие с новым функционалом.
diff --git a/smart-house/src/device.rs b/smart-house/src/device.rs
index 73f9910..097614b 100644
--- a/smart-house/src/device.rs
+++ b/smart-house/src/device.rs
@@ -1,3 +1,4 @@
+use crate::PrintStatus;
 use std::fmt::Display;
 
 #[derive(Debug)]
@@ -17,10 +18,6 @@ impl Device {
             }
         }
     }
-
-    pub fn print_status(&self) {
-        println!("{}", self.display());
-    }
 }
 
 impl From<super::Thermometer> for Device {
@@ -35,6 +32,12 @@ impl From<super::PowerSocket> for Device {
     }
 }
 
+impl PrintStatus for Device {
+    fn print_status(&self) {
+        println!("{}", self.display());
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/smart-house/src/house.rs b/smart-house/src/house.rs
index a2e563d..6065d67 100644
--- a/smart-house/src/house.rs
+++ b/smart-house/src/house.rs
@@ -1,4 +1,4 @@
-use crate::{Device, Error, Room};
+use crate::{Device, Error, PrintStatus, Room};
 use std::collections::HashMap;
 
 #[derive(Debug)]
@@ -36,8 +36,10 @@ impl House {
         };
         Ok(device)
     }
+}
 
-    pub fn print_status(&self) {
+impl PrintStatus for House {
+    fn print_status(&self) {
         for (room_name, room) in self.rooms.iter() {
             println!("{}:", room_name);
             println!("{}", "-".repeat(32));
diff --git a/smart-house/src/lib.rs b/smart-house/src/lib.rs
index e0b75f1..0171d36 100644
--- a/smart-house/src/lib.rs
+++ b/smart-house/src/lib.rs
@@ -4,11 +4,13 @@ mod house;
 mod power_socket;
 #[macro_use]
 mod room;
+mod print_status;
 mod thermometer;
 
 pub use device::Device;
 pub use error::Error;
 pub use house::House;
 pub use power_socket::PowerSocket;
+pub use print_status::PrintStatus;
 pub use room::Room;
 pub use thermometer::Thermometer;
diff --git a/smart-house/src/main.rs b/smart-house/src/main.rs
index ddb4a9f..afbe50c 100644
--- a/smart-house/src/main.rs
+++ b/smart-house/src/main.rs
@@ -1,4 +1,4 @@
-use smart_house::{Device, House, PowerSocket, Room, Thermometer, room};
+use smart_house::{Device, House, PowerSocket, PrintStatus, Room, Thermometer, room};
 
 fn main() {
     let mut house = House::new(
diff --git a/smart-house/src/print_status.rs b/smart-house/src/print_status.rs
new file mode 100644
index 0000000..3f06159
--- /dev/null
+++ b/smart-house/src/print_status.rs
@@ -0,0 +1,3 @@
+pub trait PrintStatus {
+    fn print_status(&self);
+}
diff --git a/smart-house/src/room.rs b/smart-house/src/room.rs
index 2ac481e..5a36303 100644
--- a/smart-house/src/room.rs
+++ b/smart-house/src/room.rs
@@ -1,4 +1,4 @@
-use crate::Device;
+use crate::{Device, PrintStatus};
 use std::collections::HashMap;
 
 #[derive(Debug)]
@@ -26,8 +26,10 @@ impl Room {
     pub fn remove_device(&mut self, name: &str) -> Option<Device> {
         self.devices.remove(name)
     }
+}
 
-    pub fn print_status(&self) {
+impl PrintStatus for Room {
+    fn print_status(&self) {
         for (name, device) in self.devices.iter() {
             print!("{} => ", name);
             device.print_status();