matc/clusters/codec/

device_energy_management.rs

//! Matter TLV encoders and decoders for Device Energy Management Cluster
//! Cluster ID: 0x0098
//!
//! This file is automatically generated from DeviceEnergyManagement.xml

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


// Enum definitions

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum AdjustmentCause {
    /// The adjustment is to optimize the local energy usage
    Localoptimization = 0,
    /// The adjustment is to optimize the grid energy usage
    Gridoptimization = 1,
}

impl AdjustmentCause {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(AdjustmentCause::Localoptimization),
            1 => Some(AdjustmentCause::Gridoptimization),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<AdjustmentCause> for u8 {
    fn from(val: AdjustmentCause) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum Cause {
    /// The ESA completed the power adjustment as requested
    Normalcompletion = 0,
    /// The ESA was set to offline
    Offline = 1,
    /// The ESA has developed a fault could not complete the adjustment
    Fault = 2,
    /// The user has disabled the ESA's flexibility capability
    Useroptout = 3,
    /// The adjustment was cancelled by a client
    Cancelled = 4,
}

impl Cause {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(Cause::Normalcompletion),
            1 => Some(Cause::Offline),
            2 => Some(Cause::Fault),
            3 => Some(Cause::Useroptout),
            4 => Some(Cause::Cancelled),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<Cause> for u8 {
    fn from(val: Cause) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum CostType {
    /// Financial cost
    Financial = 0,
    /// Grid CO2e grams cost
    Ghgemissions = 1,
    /// Consumer comfort impact cost
    Comfort = 2,
    /// Temperature impact cost
    Temperature = 3,
}

impl CostType {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(CostType::Financial),
            1 => Some(CostType::Ghgemissions),
            2 => Some(CostType::Comfort),
            3 => Some(CostType::Temperature),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<CostType> for u8 {
    fn from(val: CostType) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum ESAState {
    /// The ESA is not available to the EMS (e.g. start-up, maintenance mode)
    Offline = 0,
    /// The ESA is working normally and can be controlled by the EMS
    Online = 1,
    /// The ESA has developed a fault and cannot provide service
    Fault = 2,
    /// The ESA is in the middle of a power adjustment event
    Poweradjustactive = 3,
    /// The ESA is currently paused by a client using the PauseRequest command
    Paused = 4,
}

impl ESAState {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(ESAState::Offline),
            1 => Some(ESAState::Online),
            2 => Some(ESAState::Fault),
            3 => Some(ESAState::Poweradjustactive),
            4 => Some(ESAState::Paused),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<ESAState> for u8 {
    fn from(val: ESAState) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum ESAType {
    /// EV Supply Equipment
    Evse = 0,
    /// Space heating appliance
    Spaceheating = 1,
    /// Water heating appliance
    Waterheating = 2,
    /// Space cooling appliance
    Spacecooling = 3,
    /// Space heating and cooling appliance
    Spaceheatingcooling = 4,
    /// Battery Electric Storage System
    Batterystorage = 5,
    /// Solar PV inverter
    Solarpv = 6,
    /// Fridge / Freezer
    Fridgefreezer = 7,
    /// Washing Machine
    Washingmachine = 8,
    /// Dishwasher
    Dishwasher = 9,
    /// Cooking appliance
    Cooking = 10,
    /// Home water pump (e.g. drinking well)
    Homewaterpump = 11,
    /// Irrigation water pump
    Irrigationwaterpump = 12,
    /// Pool pump
    Poolpump = 13,
    /// Other appliance type
    Other = 255,
}

impl ESAType {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(ESAType::Evse),
            1 => Some(ESAType::Spaceheating),
            2 => Some(ESAType::Waterheating),
            3 => Some(ESAType::Spacecooling),
            4 => Some(ESAType::Spaceheatingcooling),
            5 => Some(ESAType::Batterystorage),
            6 => Some(ESAType::Solarpv),
            7 => Some(ESAType::Fridgefreezer),
            8 => Some(ESAType::Washingmachine),
            9 => Some(ESAType::Dishwasher),
            10 => Some(ESAType::Cooking),
            11 => Some(ESAType::Homewaterpump),
            12 => Some(ESAType::Irrigationwaterpump),
            13 => Some(ESAType::Poolpump),
            255 => Some(ESAType::Other),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<ESAType> for u8 {
    fn from(val: ESAType) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum ForecastUpdateReason {
    /// The update was due to internal ESA device optimization
    Internaloptimization = 0,
    /// The update was due to local EMS optimization
    Localoptimization = 1,
    /// The update was due to grid optimization
    Gridoptimization = 2,
}

impl ForecastUpdateReason {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(ForecastUpdateReason::Internaloptimization),
            1 => Some(ForecastUpdateReason::Localoptimization),
            2 => Some(ForecastUpdateReason::Gridoptimization),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<ForecastUpdateReason> for u8 {
    fn from(val: ForecastUpdateReason) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum OptOutState {
    /// The user has not opted out of either local or grid optimizations
    Nooptout = 0,
    /// The user has opted out of local EMS optimizations only
    Localoptout = 1,
    /// The user has opted out of grid EMS optimizations only
    Gridoptout = 2,
    /// The user has opted out of all external optimizations
    Optout = 3,
}

impl OptOutState {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(OptOutState::Nooptout),
            1 => Some(OptOutState::Localoptout),
            2 => Some(OptOutState::Gridoptout),
            3 => Some(OptOutState::Optout),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<OptOutState> for u8 {
    fn from(val: OptOutState) -> Self {
        val as u8
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum PowerAdjustReason {
    /// There is no Power Adjustment active
    Noadjustment = 0,
    /// There is PowerAdjustment active due to local EMS optimization
    Localoptimizationadjustment = 1,
    /// There is PowerAdjustment active due to grid optimization
    Gridoptimizationadjustment = 2,
}

impl PowerAdjustReason {
    /// Convert from u8 value
    pub fn from_u8(value: u8) -> Option<Self> {
        match value {
            0 => Some(PowerAdjustReason::Noadjustment),
            1 => Some(PowerAdjustReason::Localoptimizationadjustment),
            2 => Some(PowerAdjustReason::Gridoptimizationadjustment),
            _ => None,
        }
    }

    /// Convert to u8 value
    pub fn to_u8(self) -> u8 {
        self as u8
    }
}

impl From<PowerAdjustReason> for u8 {
    fn from(val: PowerAdjustReason) -> Self {
        val as u8
    }
}

// Struct definitions

#[derive(Debug, serde::Serialize)]
pub struct Constraints {
    pub start_time: Option<u64>,
    pub duration: Option<u32>,
    pub nominal_power: Option<u32>,
    pub maximum_energy: Option<u64>,
    pub load_control: Option<i8>,
}

#[derive(Debug, serde::Serialize)]
pub struct Cost {
    pub cost_type: Option<CostType>,
    pub value: Option<i32>,
    pub decimal_points: Option<u8>,
    pub currency: Option<u16>,
}

#[derive(Debug, serde::Serialize)]
pub struct Forecast {
    pub forecast_id: Option<u32>,
    pub active_slot_number: Option<u16>,
    pub start_time: Option<u64>,
    pub end_time: Option<u64>,
    pub earliest_start_time: Option<u64>,
    pub latest_end_time: Option<u64>,
    pub is_pausable: Option<bool>,
    pub slots: Option<Vec<Slot>>,
    pub forecast_update_reason: Option<ForecastUpdateReason>,
}

#[derive(Debug, serde::Serialize)]
pub struct PowerAdjustCapability {
    pub power_adjust_capability: Option<Vec<PowerAdjust>>,
    pub cause: Option<PowerAdjustReason>,
}

#[derive(Debug, serde::Serialize)]
pub struct PowerAdjust {
    pub min_power: Option<u32>,
    pub max_power: Option<u32>,
    pub min_duration: Option<u32>,
    pub max_duration: Option<u32>,
}

#[derive(Debug, serde::Serialize)]
pub struct SlotAdjustment {
    pub slot_index: Option<u8>,
    pub nominal_power: Option<u32>,
    pub duration: Option<u32>,
}

#[derive(Debug, serde::Serialize)]
pub struct Slot {
    pub min_duration: Option<u32>,
    pub max_duration: Option<u32>,
    pub default_duration: Option<u32>,
    pub elapsed_slot_time: Option<u32>,
    pub remaining_slot_time: Option<u32>,
    pub slot_is_pausable: Option<bool>,
    pub min_pause_duration: Option<u32>,
    pub max_pause_duration: Option<u32>,
    pub manufacturer_esa_state: Option<u16>,
    pub nominal_power: Option<u32>,
    pub min_power: Option<u32>,
    pub max_power: Option<u32>,
    pub nominal_energy: Option<u64>,
    pub costs: Option<Vec<Cost>>,
    pub min_power_adjustment: Option<u32>,
    pub max_power_adjustment: Option<u32>,
    pub min_duration_adjustment: Option<u32>,
    pub max_duration_adjustment: Option<u32>,
}

// Command encoders

/// Encode PowerAdjustRequest command (0x00)
pub fn encode_power_adjust_request(power: u32, duration: u32, cause: AdjustmentCause) -> anyhow::Result<Vec<u8>> {
    let tlv = tlv::TlvItemEnc {
        tag: 0,
        value: tlv::TlvItemValueEnc::StructInvisible(vec![
        (0, tlv::TlvItemValueEnc::UInt32(power)).into(),
        (1, tlv::TlvItemValueEnc::UInt32(duration)).into(),
        (2, tlv::TlvItemValueEnc::UInt8(cause.to_u8())).into(),
        ]),
    };
    Ok(tlv.encode()?)
}

/// Encode StartTimeAdjustRequest command (0x02)
pub fn encode_start_time_adjust_request(requested_start_time: u64, cause: AdjustmentCause) -> anyhow::Result<Vec<u8>> {
    let tlv = tlv::TlvItemEnc {
        tag: 0,
        value: tlv::TlvItemValueEnc::StructInvisible(vec![
        (0, tlv::TlvItemValueEnc::UInt64(requested_start_time)).into(),
        (1, tlv::TlvItemValueEnc::UInt8(cause.to_u8())).into(),
        ]),
    };
    Ok(tlv.encode()?)
}

/// Encode PauseRequest command (0x03)
pub fn encode_pause_request(duration: u32, cause: AdjustmentCause) -> anyhow::Result<Vec<u8>> {
    let tlv = tlv::TlvItemEnc {
        tag: 0,
        value: tlv::TlvItemValueEnc::StructInvisible(vec![
        (0, tlv::TlvItemValueEnc::UInt32(duration)).into(),
        (1, tlv::TlvItemValueEnc::UInt8(cause.to_u8())).into(),
        ]),
    };
    Ok(tlv.encode()?)
}

/// Encode ModifyForecastRequest command (0x05)
pub fn encode_modify_forecast_request(forecast_id: u32, slot_adjustments: Vec<SlotAdjustment>, cause: AdjustmentCause) -> anyhow::Result<Vec<u8>> {
    let tlv = tlv::TlvItemEnc {
        tag: 0,
        value: tlv::TlvItemValueEnc::StructInvisible(vec![
        (0, tlv::TlvItemValueEnc::UInt32(forecast_id)).into(),
        (1, tlv::TlvItemValueEnc::Array(slot_adjustments.into_iter().map(|v| {
                    let mut fields = Vec::new();
                    if let Some(x) = v.slot_index { fields.push((0, tlv::TlvItemValueEnc::UInt8(x)).into()); }
                    if let Some(x) = v.nominal_power { fields.push((1, tlv::TlvItemValueEnc::UInt32(x)).into()); }
                    if let Some(x) = v.duration { fields.push((2, tlv::TlvItemValueEnc::UInt32(x)).into()); }
                    (0, tlv::TlvItemValueEnc::StructAnon(fields)).into()
                }).collect())).into(),
        (2, tlv::TlvItemValueEnc::UInt8(cause.to_u8())).into(),
        ]),
    };
    Ok(tlv.encode()?)
}

/// Encode RequestConstraintBasedForecast command (0x06)
pub fn encode_request_constraint_based_forecast(constraints: Vec<Constraints>, cause: AdjustmentCause) -> anyhow::Result<Vec<u8>> {
    let tlv = tlv::TlvItemEnc {
        tag: 0,
        value: tlv::TlvItemValueEnc::StructInvisible(vec![
        (0, tlv::TlvItemValueEnc::Array(constraints.into_iter().map(|v| {
                    let mut fields = Vec::new();
                    if let Some(x) = v.start_time { fields.push((0, tlv::TlvItemValueEnc::UInt64(x)).into()); }
                    if let Some(x) = v.duration { fields.push((1, tlv::TlvItemValueEnc::UInt32(x)).into()); }
                    if let Some(x) = v.nominal_power { fields.push((2, tlv::TlvItemValueEnc::UInt32(x)).into()); }
                    if let Some(x) = v.maximum_energy { fields.push((3, tlv::TlvItemValueEnc::UInt64(x)).into()); }
                    if let Some(x) = v.load_control { fields.push((4, tlv::TlvItemValueEnc::Int8(x)).into()); }
                    (0, tlv::TlvItemValueEnc::StructAnon(fields)).into()
                }).collect())).into(),
        (1, tlv::TlvItemValueEnc::UInt8(cause.to_u8())).into(),
        ]),
    };
    Ok(tlv.encode()?)
}

// Attribute decoders

/// Decode ESAType attribute (0x0000)
pub fn decode_esa_type(inp: &tlv::TlvItemValue) -> anyhow::Result<ESAType> {
    if let tlv::TlvItemValue::Int(v) = inp {
        ESAType::from_u8(*v as u8).ok_or_else(|| anyhow::anyhow!("Invalid enum value"))
    } else {
        Err(anyhow::anyhow!("Expected Integer"))
    }
}

/// Decode ESACanGenerate attribute (0x0001)
pub fn decode_esa_can_generate(inp: &tlv::TlvItemValue) -> anyhow::Result<bool> {
    if let tlv::TlvItemValue::Bool(v) = inp {
        Ok(*v)
    } else {
        Err(anyhow::anyhow!("Expected Bool"))
    }
}

/// Decode ESAState attribute (0x0002)
pub fn decode_esa_state(inp: &tlv::TlvItemValue) -> anyhow::Result<ESAState> {
    if let tlv::TlvItemValue::Int(v) = inp {
        ESAState::from_u8(*v as u8).ok_or_else(|| anyhow::anyhow!("Invalid enum value"))
    } else {
        Err(anyhow::anyhow!("Expected Integer"))
    }
}

/// Decode AbsMinPower attribute (0x0003)
pub fn decode_abs_min_power(inp: &tlv::TlvItemValue) -> anyhow::Result<u32> {
    if let tlv::TlvItemValue::Int(v) = inp {
        Ok(*v as u32)
    } else {
        Err(anyhow::anyhow!("Expected UInt32"))
    }
}

/// Decode AbsMaxPower attribute (0x0004)
pub fn decode_abs_max_power(inp: &tlv::TlvItemValue) -> anyhow::Result<u32> {
    if let tlv::TlvItemValue::Int(v) = inp {
        Ok(*v as u32)
    } else {
        Err(anyhow::anyhow!("Expected UInt32"))
    }
}

/// Decode PowerAdjustmentCapability attribute (0x0005)
pub fn decode_power_adjustment_capability(inp: &tlv::TlvItemValue) -> anyhow::Result<Option<PowerAdjustCapability>> {
    if let tlv::TlvItemValue::List(_fields) = inp {
        // Struct with fields
        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
        Ok(Some(PowerAdjustCapability {
                power_adjust_capability: {
                    if let Some(tlv::TlvItemValue::List(l)) = item.get(&[0]) {
                        let mut items = Vec::new();
                        for list_item in l {
                            items.push(PowerAdjust {
                min_power: list_item.get_int(&[0]).map(|v| v as u32),
                max_power: list_item.get_int(&[1]).map(|v| v as u32),
                min_duration: list_item.get_int(&[2]).map(|v| v as u32),
                max_duration: list_item.get_int(&[3]).map(|v| v as u32),
                            });
                        }
                        Some(items)
                    } else {
                        None
                    }
                },
                cause: item.get_int(&[1]).and_then(|v| PowerAdjustReason::from_u8(v as u8)),
        }))
    //} else if let tlv::TlvItemValue::Null = inp {
    //    // Null value for nullable struct
    //    Ok(None)
    } else {
    Ok(None)
    //    Err(anyhow::anyhow!("Expected struct fields or null"))
    }
}

/// Decode Forecast attribute (0x0006)
pub fn decode_forecast(inp: &tlv::TlvItemValue) -> anyhow::Result<Option<Forecast>> {
    if let tlv::TlvItemValue::List(_fields) = inp {
        // Struct with fields
        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
        Ok(Some(Forecast {
                forecast_id: item.get_int(&[0]).map(|v| v as u32),
                active_slot_number: item.get_int(&[1]).map(|v| v as u16),
                start_time: item.get_int(&[2]),
                end_time: item.get_int(&[3]),
                earliest_start_time: item.get_int(&[4]),
                latest_end_time: item.get_int(&[5]),
                is_pausable: item.get_bool(&[6]),
                slots: {
                    if let Some(tlv::TlvItemValue::List(l)) = item.get(&[7]) {
                        let mut items = Vec::new();
                        for list_item in l {
                            items.push(Slot {
                min_duration: list_item.get_int(&[0]).map(|v| v as u32),
                max_duration: list_item.get_int(&[1]).map(|v| v as u32),
                default_duration: list_item.get_int(&[2]).map(|v| v as u32),
                elapsed_slot_time: list_item.get_int(&[3]).map(|v| v as u32),
                remaining_slot_time: list_item.get_int(&[4]).map(|v| v as u32),
                slot_is_pausable: list_item.get_bool(&[5]),
                min_pause_duration: list_item.get_int(&[6]).map(|v| v as u32),
                max_pause_duration: list_item.get_int(&[7]).map(|v| v as u32),
                manufacturer_esa_state: list_item.get_int(&[8]).map(|v| v as u16),
                nominal_power: list_item.get_int(&[9]).map(|v| v as u32),
                min_power: list_item.get_int(&[10]).map(|v| v as u32),
                max_power: list_item.get_int(&[11]).map(|v| v as u32),
                nominal_energy: list_item.get_int(&[12]),
                costs: {
                    if let Some(tlv::TlvItemValue::List(l)) = list_item.get(&[13]) {
                        let mut items = Vec::new();
                        for list_item in l {
                            items.push(Cost {
                cost_type: list_item.get_int(&[0]).and_then(|v| CostType::from_u8(v as u8)),
                value: list_item.get_int(&[1]).map(|v| v as i32),
                decimal_points: list_item.get_int(&[2]).map(|v| v as u8),
                currency: list_item.get_int(&[3]).map(|v| v as u16),
                            });
                        }
                        Some(items)
                    } else {
                        None
                    }
                },
                min_power_adjustment: list_item.get_int(&[14]).map(|v| v as u32),
                max_power_adjustment: list_item.get_int(&[15]).map(|v| v as u32),
                min_duration_adjustment: list_item.get_int(&[16]).map(|v| v as u32),
                max_duration_adjustment: list_item.get_int(&[17]).map(|v| v as u32),
                            });
                        }
                        Some(items)
                    } else {
                        None
                    }
                },
                forecast_update_reason: item.get_int(&[8]).and_then(|v| ForecastUpdateReason::from_u8(v as u8)),
        }))
    //} else if let tlv::TlvItemValue::Null = inp {
    //    // Null value for nullable struct
    //    Ok(None)
    } else {
    Ok(None)
    //    Err(anyhow::anyhow!("Expected struct fields or null"))
    }
}

/// Decode OptOutState attribute (0x0007)
pub fn decode_opt_out_state(inp: &tlv::TlvItemValue) -> anyhow::Result<OptOutState> {
    if let tlv::TlvItemValue::Int(v) = inp {
        OptOutState::from_u8(*v as u8).ok_or_else(|| anyhow::anyhow!("Invalid enum value"))
    } else {
        Err(anyhow::anyhow!("Expected Integer"))
    }
}


// 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 != 0x0098 {
        return format!("{{\"error\": \"Invalid cluster ID. Expected 0x0098, got {}\"}}", cluster_id);
    }

    match attribute_id {
        0x0000 => {
            match decode_esa_type(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0001 => {
            match decode_esa_can_generate(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0002 => {
            match decode_esa_state(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0003 => {
            match decode_abs_min_power(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0004 => {
            match decode_abs_max_power(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0005 => {
            match decode_power_adjustment_capability(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0006 => {
            match decode_forecast(tlv_value) {
                Ok(value) => serde_json::to_string(&value).unwrap_or_else(|_| "null".to_string()),
                Err(e) => format!("{{\"error\": \"{}\"}}", e),
            }
        }
        0x0007 => {
            match decode_opt_out_state(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, "ESAType"),
        (0x0001, "ESACanGenerate"),
        (0x0002, "ESAState"),
        (0x0003, "AbsMinPower"),
        (0x0004, "AbsMaxPower"),
        (0x0005, "PowerAdjustmentCapability"),
        (0x0006, "Forecast"),
        (0x0007, "OptOutState"),
    ]
}

#[derive(Debug, serde::Serialize)]
pub struct PowerAdjustEndEvent {
    pub cause: Option<Cause>,
    pub duration: Option<u32>,
    pub energy_use: Option<u64>,
}

#[derive(Debug, serde::Serialize)]
pub struct ResumedEvent {
    pub cause: Option<Cause>,
}

// Event decoders

/// Decode PowerAdjustEnd event (0x01, priority: info)
pub fn decode_power_adjust_end_event(inp: &tlv::TlvItemValue) -> anyhow::Result<PowerAdjustEndEvent> {
    if let tlv::TlvItemValue::List(_fields) = inp {
        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
        Ok(PowerAdjustEndEvent {
                                cause: item.get_int(&[0]).and_then(|v| Cause::from_u8(v as u8)),
                                duration: item.get_int(&[1]).map(|v| v as u32),
                                energy_use: item.get_int(&[2]),
        })
    } else {
        Err(anyhow::anyhow!("Expected struct fields"))
    }
}

/// Decode Resumed event (0x03, priority: info)
pub fn decode_resumed_event(inp: &tlv::TlvItemValue) -> anyhow::Result<ResumedEvent> {
    if let tlv::TlvItemValue::List(_fields) = inp {
        let item = tlv::TlvItem { tag: 0, value: inp.clone() };
        Ok(ResumedEvent {
                                cause: item.get_int(&[0]).and_then(|v| Cause::from_u8(v as u8)),
        })
    } else {
        Err(anyhow::anyhow!("Expected struct fields"))
    }
}