WriteAttributeCommand-Zigbee

messageHandler.lua

local read_attribute = require "st.zigbee.zcl.global_commands.read_attribute"
local write_attribute = require "st.zigbee.zcl.global_commands.write_attribute"
local messages = require "st.zigbee.messages"
local zb_const = require "st.zigbee.constants"
local zcl_messages = require "st.zigbee.zcl"
local data_types = require "st.zigbee.data_types"

local messageHandler = {}

messageHandler.build_zcl_message = function(device,cluster_id,zclh,body_message,mfg_specific_code)
    local addrh = messages.AddressHeader(
            zb_const.HUB.ADDR,
            zb_const.HUB.ENDPOINT,
            device:get_short_address(),
            device:get_endpoint(cluster_id),
            zb_const.HA_PROFILE_ID,
            cluster_id
    )
    local message_body = zcl_messages.ZclMessageBody({
        zcl_header = zclh,
        zcl_body = body_message
    })
    local txMessage = messages.ZigbeeMessageTx({
        address_header = addrh,
        body = message_body
    })
    --Add the manufacturer info if exists
    if mfg_specific_code then
        txMessage.body.zcl_header.frame_ctrl:set_mfg_specific()
        txMessage.body.zcl_header.mfg_code = data_types.validate_or_build_type(mfg_specific_code, data_types.Uint16, "mfg_code")
    end
    device:send(txMessage)
end

--Build Tx messages to read attributes
messageHandler.build_read_tx_message = function(device, cluster_id, body_message, mfg_specific_code)
    local zclh = zcl_messages.ZclHeader({
        cmd = data_types.ZCLCommandId(read_attribute.ReadAttribute.ID)
    })
    messageHandler.build_zcl_message(device,cluster_id,zclh,body_message,mfg_specific_code)
end

messageHandler.build_write_tx_message = function(device, cluster_id, attr_id, mfg_specific_code,attr_type, attr_value)
    local zclh = zcl_messages.ZclHeader({
        cmd = data_types.ZCLCommandId(write_attribute.WriteAttribute.ID)
    })
    local cie_attr_write = write_attribute.WriteAttributeAttributeRecord(
            data_types.AttributeId(attr_id),
            data_types.ZigbeeDataType(data_types[attr_type].ID),
            data_types[attr_type](attr_value)
    )
    local write_body = write_attribute.WriteAttribute({ cie_attr_write })
    messageHandler.build_zcl_message(device,cluster_id,zclh,write_body,mfg_specific_code)
end

return messageHandler