Support of Air Purifier 3 (C/H) about mi_connector HOT 2 OPEN

def calFanLevel(speed){
	if(speed == 0){
    	return 0
    }else if(speed == 1){
    	return 33
    }else if(speed == 2){
    	return 66
    }else if(speed == 3){
    	return 100
    }else if(speed == 4){  // - - - - - - - - - - - new entry of silent mode
    	return -1          
    }                     
}

 // - - - - - - - - - - - modifications to support auto and silent modes
def setFanSpeed(speed){
	log.debug "setFanSpeed " + speed
	def level = calFanLevel(speed)
    if(level > 0){
    	setLevel(level)
    }else if (level == 0) {
    	setModeAuto()
    }else if (level < 0) {
    	setModeSilent()
    }
    //sendEvent(name:"fanSpeed", value: level)
}

def setLevel(level){
	def speed = Math.round(level/6.25)   

//    if(model == "MiAirPurifier3"){
//       level = Math.round(stf/7.14)
//    }

log.debug "setLevel >> " + level + " >> " + speed

 // - - - - - - - - - - - modifications to support auto and silent modes
	if(level == 33){
    	speed = "low"
        level = 1
    }else if(level == 66){
    	speed = "medium"
        level = 2
    }else if(level == 100){
    	speed = "high"
        level = 3
    }

   if(model != "MiAirPurifier"){
        def body = [
            "id": state.id,
            "cmd": "mode",
            "data": speed
        ]
        def options = makeCommand(body)
        sendEvent(name:"fanSpeed", value: level)
        sendCommand(options, null)
	}
}
def setModeAuto(){
	log.debug "setModeAuto >> ${state.id}"
    def body = [
        "id": state.id,
        "cmd": "mode",
        "data": "auto"
    ]
    def options = makeCommand(body)
    sendEvent(name:"fanSpeed", value: 0) // - - - - - - - - - - - entry for updating DHT of auto mode
    sendCommand(options, null)
}

def setModeSilent(){
    log.debug "setModeSilent >> ${state.id}"
    def body = [
        "id": state.id,
        "cmd": "mode",
        "data": "silent"
    ]
    def options = makeCommand(body)
    sendEvent(name:"fanSpeed", value: 4)  // - - - - - - - - - - - entry for updating DHT of silent mode
    sendCommand(options, null)
}