add: statelessSwitchLevelStep and statelessColorTemperatureStep handling

Author: wkhenon

drivers/SmartThings/zigbee-switch/src/stateless_handlers/init.lua

@@ -2,18 +2,44 @@
 -- Licensed under the Apache License, Version 2.0
 
 local capabilities = require "st.capabilities"
+local st_utils = require "st.utils"
+local clusters = require "st.zigbee.zcl.clusters"
 local log = require "log"
 
+-- The following definitions should be pulled from the `st.zigbee.constants` module once those changes land
+local KELVIN_MAX = "_max_kelvin"
+local KELVIN_MIN = "_min_kelvin"
+local MIREDS_CONVERSION_CONSTANT = 1000000
+local COLOR_TEMPERATURE_KELVIN_MAX = 15000
+local COLOR_TEMPERATURE_KELVIN_MIN = 1000
+local COLOR_TEMPERATURE_MIRED_MAX = st_utils.round(MIREDS_CONVERSION_CONSTANT/COLOR_TEMPERATURE_KELVIN_MIN) -- 1000
+local COLOR_TEMPERATURE_MIRED_MIN = st_utils.round(MIREDS_CONVERSION_CONSTANT/COLOR_TEMPERATURE_KELVIN_MAX) -- 67
+
+-- Transition Time: The time that shall be taken to perform the step change, in units of 1/10ths of a second.
+local TRANSITION_TIME = 3 -- default: 0.3 seconds
+-- Options Mask & Override: Indicates which options are being overriden by the Level/ColorControl cluster commands
+local OPTIONS_MASK = 0x01 -- default: The `ExecuteIfOff` option is overriden
+local IGNORE_COMMAND_IF_OFF = 0x00 -- default: the command will not be executed if the device is off
+
 local function step_color_temperature_by_percent_handler(driver, device, cmd)
-    log.info_with({ hub_logs = true }, string.format("handling stepColorTemperatureByPercent command for device %s with args: %s", device.id, cmd.args))
+    local step_percent_change = cmd.args and cmd.args.stepSize or 0
+    if step_percent_change == 0 then return end
+    local step_mode = step_percent_change > 0 and (clusters.ColorControl.types.CcStepMode and clusters.ColorControl.types.CcStepMode.DOWN or 3) or (clusters.ColorControl.types.CcStepMode and clusters.ColorControl.types.CcStepMode.UP or 1)
+    local min_mireds = device:get_field(KELVIN_MIN) or COLOR_TEMPERATURE_MIRED_MIN -- default min mireds
+    local max_mireds = device:get_field(KELVIN_MAX) or COLOR_TEMPERATURE_MIRED_MAX -- default max mireds
+    local step_size_in_mireds = st_utils.round((max_mireds - min_mireds) * (math.abs(step_percent_change)/100.0))
+    device:send(clusters.ColorControl.server.commands.StepColorTemperature(device, step_mode, step_size_in_mireds, TRANSITION_TIME, min_mireds, max_mireds, OPTIONS_MASK, IGNORE_COMMAND_IF_OFF))
 end
 
 local function step_level_handler(driver, device, cmd)
-    log.info_with({ hub_logs = true }, string.format("handling stepLevel command for device %s with args: %s", device.id, cmd.args))
+    local step_size = st_utils.round((cmd.args and cmd.args.stepSize or 0)/100.0 * 254)
+    if step_size == 0 then return end
+    local step_mode = step_size > 0 and clusters.Level.types.MoveStepMode.UP or clusters.Level.types.MoveStepMode.DOWN
+    device:send(clusters.Level.server.commands.Step(device, step_mode, math.abs(step_size), TRANSITION_TIME, OPTIONS_MASK, IGNORE_COMMAND_IF_OFF))
 end
 
 local stateless_handlers = {
-    Name = "Stateless Step Handlers",
+    Name = "Zigbee Stateless Step Handlers",
     capability_handlers = {
         [capabilities.statelessColorTemperatureStep.ID] = {
             [capabilities.statelessColorTemperatureStep.commands.stepColorTemperatureByPercent.NAME] = step_color_temperature_by_percent_handler,