1  /// Pre-allocated device name storage to avoid String allocations
 2  /// These are used instead of "Device Name".to_string() in hot paths
 3  use arrayvec::ArrayString;
 4  
 5  /// Get pre-formatted exhaust fan name (no allocation)
 6  #[allow(dead_code)]
 7  pub fn exhaust_fan_name() -> ArrayString<32> {
 8      let mut name = ArrayString::new();
 9      name.push_str("Exhaust Fan");
10      name
11  }
12  
13  /// Get pre-formatted circulation fan name (no allocation)
14  #[allow(dead_code)]
15  pub fn circulation_fan_name() -> ArrayString<32> {
16      let mut name = ArrayString::new();
17      name.push_str("Circulation Fan");
18      name
19  }
20  
21  /// Get pre-formatted heater name (no allocation)
22  #[allow(dead_code)]
23  pub fn heater_name() -> ArrayString<32> {
24      let mut name = ArrayString::new();
25      name.push_str("Heater");
26      name
27  }
28  
29  /// Get pre-formatted air purifier name (no allocation)
30  #[allow(dead_code)]
31  pub fn air_purifier_name() -> ArrayString<32> {
32      let mut name = ArrayString::new();
33      name.push_str("Air Purifier");
34      name
35  }
36  
37  /// Build full hostname from settings (single allocation)
38  /// Format: "{hostname}-{device_id}"
39  pub fn build_hostname(hostname: &str, device_id: &str) -> ArrayString<64> {
40      let mut full_hostname = ArrayString::new();
41      full_hostname.push_str(hostname);
42      full_hostname.push('-');
43      full_hostname.push_str(device_id);
44      full_hostname
45  }