matc/clusters/codec/
alarm_base.rs

1//! Matter TLV encoders and decoders for Alarm Base Cluster
2//! Cluster ID: 0x0000
3//!
4//! This file is automatically generated from AlarmBase.xml
5
6use crate::tlv;
7use anyhow;
8use serde_json;
9
10
11// Bitmap definitions
12
13/// Alarm bitmap type
14pub type Alarm = u8;
15
16// Command encoders
17
18/// Encode Reset command (0x00)
19pub fn encode_reset(alarms: Alarm) -> anyhow::Result<Vec<u8>> {
20    let tlv = tlv::TlvItemEnc {
21        tag: 0,
22        value: tlv::TlvItemValueEnc::StructInvisible(vec![
23        (0, tlv::TlvItemValueEnc::UInt8(alarms)).into(),
24        ]),
25    };
26    Ok(tlv.encode()?)
27}
28
29/// Encode ModifyEnabledAlarms command (0x01)
30pub fn encode_modify_enabled_alarms(mask: Alarm) -> anyhow::Result<Vec<u8>> {
31    let tlv = tlv::TlvItemEnc {
32        tag: 0,
33        value: tlv::TlvItemValueEnc::StructInvisible(vec![
34        (0, tlv::TlvItemValueEnc::UInt8(mask)).into(),
35        ]),
36    };
37    Ok(tlv.encode()?)
38}
39
40// Attribute decoders
41
42/// Decode Mask attribute (0x0000)
43pub fn decode_mask(inp: &tlv::TlvItemValue) -> anyhow::Result<Alarm> {
44    if let tlv::TlvItemValue::Int(v) = inp {
45        Ok(*v as u8)
46    } else {
47        Err(anyhow::anyhow!("Expected Integer"))
48    }
49}
50
51/// Decode Latch attribute (0x0001)
52pub fn decode_latch(inp: &tlv::TlvItemValue) -> anyhow::Result<Alarm> {
53    if let tlv::TlvItemValue::Int(v) = inp {
54        Ok(*v as u8)
55    } else {
56        Err(anyhow::anyhow!("Expected Integer"))
57    }
58}
59
60/// Decode State attribute (0x0002)
61pub fn decode_state(inp: &tlv::TlvItemValue) -> anyhow::Result<Alarm> {
62    if let tlv::TlvItemValue::Int(v) = inp {
63        Ok(*v as u8)
64    } else {
65        Err(anyhow::anyhow!("Expected Integer"))
66    }
67}
68
69/// Decode Supported attribute (0x0003)
70pub fn decode_supported(inp: &tlv::TlvItemValue) -> anyhow::Result<Alarm> {
71    if let tlv::TlvItemValue::Int(v) = inp {
72        Ok(*v as u8)
73    } else {
74        Err(anyhow::anyhow!("Expected Integer"))
75    }
76}
77
78
79// JSON dispatcher function
80
81/// Decode attribute value and return as JSON string
82///
83/// # Parameters
84/// * `cluster_id` - The cluster identifier
85/// * `attribute_id` - The attribute identifier
86/// * `tlv_value` - The TLV value to decode
87///
88/// # Returns
89/// JSON string representation of the decoded value or error
90pub fn decode_attribute_json(cluster_id: u32, attribute_id: u32, tlv_value: &crate::tlv::TlvItemValue) -> String {
91    // Verify this is the correct cluster
92    if cluster_id != 0x0000 {
93        return format!("{{\"error\": \"Invalid cluster ID. Expected 0x0000, got {}\"}}", cluster_id);
94    }
95
96    match attribute_id {
97        0x0000 => {
98            match decode_mask(tlv_value) {
99                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
100                Err(e) => format!("{{\"error\": \"{}\"}}", e),
101            }
102        }
103        0x0001 => {
104            match decode_latch(tlv_value) {
105                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
106                Err(e) => format!("{{\"error\": \"{}\"}}", e),
107            }
108        }
109        0x0002 => {
110            match decode_state(tlv_value) {
111                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
112                Err(e) => format!("{{\"error\": \"{}\"}}", e),
113            }
114        }
115        0x0003 => {
116            match decode_supported(tlv_value) {
117                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
118                Err(e) => format!("{{\"error\": \"{}\"}}", e),
119            }
120        }
121        _ => format!("{{\"error\": \"Unknown attribute ID: {}\"}}", attribute_id),
122    }
123}
124
125/// Get list of all attributes supported by this cluster
126///
127/// # Returns
128/// Vector of tuples containing (attribute_id, attribute_name)
129pub fn get_attribute_list() -> Vec<(u32, &'static str)> {
130    vec![
131        (0x0000, "Mask"),
132        (0x0001, "Latch"),
133        (0x0002, "State"),
134        (0x0003, "Supported"),
135    ]
136}
137
138#[derive(Debug, serde::Serialize)]
139pub struct NotifyEvent {
140    pub active: Option<Alarm>,
141    pub inactive: Option<Alarm>,
142    pub state: Option<Alarm>,
143    pub mask: Option<Alarm>,
144}
145
146// Event decoders
147
148/// Decode Notify event (0x00, priority: info)
149pub fn decode_notify_event(inp: &tlv::TlvItemValue) -> anyhow::Result<NotifyEvent> {
150    if let tlv::TlvItemValue::List(_fields) = inp {
151        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
152        Ok(NotifyEvent {
153                                active: item.get_int(&[0]).map(|v| v as u8),
154                                inactive: item.get_int(&[1]).map(|v| v as u8),
155                                state: item.get_int(&[2]).map(|v| v as u8),
156                                mask: item.get_int(&[3]).map(|v| v as u8),
157        })
158    } else {
159        Err(anyhow::anyhow!("Expected struct fields"))
160    }
161}
162
matc/clusters/codec/alarm_base.rs

matc/clusters/codec/
alarm_base.rs
