matc/clusters/codec/
localization_unit.rs

1//! Matter TLV encoders and decoders for Unit Localization Cluster
2//! Cluster ID: 0x002D
3//!
4//! This file is automatically generated from LocalizationUnit.xml
5
6use crate::tlv;
7use anyhow;
8use serde_json;
9
10
11// Enum definitions
12
13#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
14#[repr(u8)]
15pub enum TempUnit {
16    /// Temperature conveyed in Fahrenheit
17    Fahrenheit = 0,
18    /// Temperature conveyed in Celsius
19    Celsius = 1,
20    /// Temperature conveyed in Kelvin
21    Kelvin = 2,
22}
23
24impl TempUnit {
25    /// Convert from u8 value
26    pub fn from_u8(value: u8) -> Option<Self> {
27        match value {
28            0 => Some(TempUnit::Fahrenheit),
29            1 => Some(TempUnit::Celsius),
30            2 => Some(TempUnit::Kelvin),
31            _ => None,
32        }
33    }
34
35    /// Convert to u8 value
36    pub fn to_u8(self) -> u8 {
37        self as u8
38    }
39}
40
41impl From<TempUnit> for u8 {
42    fn from(val: TempUnit) -> Self {
43        val as u8
44    }
45}
46
47// Attribute decoders
48
49/// Decode TemperatureUnit attribute (0x0000)
50pub fn decode_temperature_unit(inp: &tlv::TlvItemValue) -> anyhow::Result<TempUnit> {
51    if let tlv::TlvItemValue::Int(v) = inp {
52        TempUnit::from_u8(*v as u8).ok_or_else(|| anyhow::anyhow!("Invalid enum value"))
53    } else {
54        Err(anyhow::anyhow!("Expected Integer"))
55    }
56}
57
58/// Decode SupportedTemperatureUnits attribute (0x0001)
59pub fn decode_supported_temperature_units(inp: &tlv::TlvItemValue) -> anyhow::Result<Vec<TempUnit>> {
60    let mut res = Vec::new();
61    if let tlv::TlvItemValue::List(v) = inp {
62        for item in v {
63            if let tlv::TlvItemValue::Int(i) = &item.value {
64                if let Some(enum_val) = TempUnit::from_u8(*i as u8) {
65                    res.push(enum_val);
66                }
67            }
68        }
69    }
70    Ok(res)
71}
72
73
74// JSON dispatcher function
75
76/// Decode attribute value and return as JSON string
77///
78/// # Parameters
79/// * `cluster_id` - The cluster identifier
80/// * `attribute_id` - The attribute identifier
81/// * `tlv_value` - The TLV value to decode
82///
83/// # Returns
84/// JSON string representation of the decoded value or error
85pub fn decode_attribute_json(cluster_id: u32, attribute_id: u32, tlv_value: &crate::tlv::TlvItemValue) -> String {
86    // Verify this is the correct cluster
87    if cluster_id != 0x002D {
88        return format!("{{\"error\": \"Invalid cluster ID. Expected 0x002D, got {}\"}}", cluster_id);
89    }
90
91    match attribute_id {
92        0x0000 => {
93            match decode_temperature_unit(tlv_value) {
94                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
95                Err(e) => format!("{{\"error\": \"{}\"}}", e),
96            }
97        }
98        0x0001 => {
99            match decode_supported_temperature_units(tlv_value) {
100                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
101                Err(e) => format!("{{\"error\": \"{}\"}}", e),
102            }
103        }
104        _ => format!("{{\"error\": \"Unknown attribute ID: {}\"}}", attribute_id),
105    }
106}
107
108/// Get list of all attributes supported by this cluster
109///
110/// # Returns
111/// Vector of tuples containing (attribute_id, attribute_name)
112pub fn get_attribute_list() -> Vec<(u32, &'static str)> {
113    vec![
114        (0x0000, "TemperatureUnit"),
115        (0x0001, "SupportedTemperatureUnits"),
116    ]
117}
118
matc/clusters/codec/localization_unit.rs

matc/clusters/codec/
localization_unit.rs
