matc 0.1.2

Matter protocol library (controller side)
Documentation 
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//! Matter TLV encoders and decoders for Wi-Fi Network Management Cluster
//! Cluster ID: 0x0451
//!
//! This file is automatically generated from WiFiNetworkManagement.xml

use crate::tlv;
use anyhow;
use serde_json;


// Import serialization helpers for octet strings
use crate::clusters::helpers::{serialize_opt_bytes_as_hex};

// Command encoders

// Attribute decoders

/// Decode SSID attribute (0x0000)
pub fn decode_ssid(inp: &tlv::TlvItemValue) -> anyhow::Result<Option<Vec<u8>>> {
    if let tlv::TlvItemValue::OctetString(v) = inp {
        Ok(Some(v.clone()))
    } else {
        Ok(None)
    }
}

/// Decode PassphraseSurrogate attribute (0x0001)
pub fn decode_passphrase_surrogate(inp: &tlv::TlvItemValue) -> anyhow::Result<Option<u64>> {
    if let tlv::TlvItemValue::Int(v) = inp {
        Ok(Some(*v))
    } else {
        Ok(None)
    }
}


// JSON dispatcher function

/// Decode attribute value and return as JSON string
///
/// # Parameters
/// * `cluster_id` - The cluster identifier
/// * `attribute_id` - The attribute identifier
/// * `tlv_value` - The TLV value to decode
///
/// # Returns
/// JSON string representation of the decoded value or error
pub fn decode_attribute_json(cluster_id: u32, attribute_id: u32, tlv_value: &crate::tlv::TlvItemValue) -> String {
    // Verify this is the correct cluster
    if cluster_id != 0x0451 {
        return format!("{{\"error\": \"Invalid cluster ID. Expected 0x0451, got {}\"}}", cluster_id);
    }

    match attribute_id {
        0x0000 => {
            match decode_ssid(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0001 => {
            match decode_passphrase_surrogate(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        _ => format!("{{\"error\": \"Unknown attribute ID: {}\"}}", attribute_id),
    }
}

/// Get list of all attributes supported by this cluster
///
/// # Returns
/// Vector of tuples containing (attribute_id, attribute_name)
pub fn get_attribute_list() -> Vec<(u32, &'static str)> {
    vec![
        (0x0000, "SSID"),
        (0x0001, "PassphraseSurrogate"),
    ]
}

#[derive(Debug, serde::Serialize)]
pub struct NetworkPassphraseResponse {
    #[serde(serialize_with = "serialize_opt_bytes_as_hex")]
    pub passphrase: Option<Vec<u8>>,
}

// Command response decoders

/// Decode NetworkPassphraseResponse command response (01)
pub fn decode_network_passphrase_response(inp: &tlv::TlvItemValue) -> anyhow::Result<NetworkPassphraseResponse> {
    if let tlv::TlvItemValue::List(_fields) = inp {
        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
        Ok(NetworkPassphraseResponse {
                passphrase: item.get_octet_string_owned(&[0]),
        })
    } else {
        Err(anyhow::anyhow!("Expected struct fields"))
    }
}