package modbus

import "server/utils"

var (
	ReadDeviceId           = []byte{0xFE, 0x04, 0x03, 0xEE, 0x00, 0x08, 0x85, 0xB2} //读设备id
	ReadDeviceIdAndDOAndDI = []byte{0xFE, 0x04, 0x03, 0xE8, 0x00, 0x14, 0x64, 0x7A} //读设备id、do、di
)

func DeviceLoopSwitch(loop int, state int) (data []byte) {
	data = append(data, 0xFE)
	data = append(data, 0x05)
	data = append(data, 0x00)
	data = append(data, byte(loop-1))
	if state == 1 {
		data = append(data, 0xFF)
	} else {
		data = append(data, 0x00)
	}
	data = append(data, 0x00)

	crc16 := utils.CRC16(data)
	data = append(data, byte(crc16&0xFF))
	data = append(data, byte(crc16>>8))
	return
}

func DeviceSwitch(number int, state int) (data []byte) {
	data = append(data, 0xFE)
	data = append(data, 0x0F)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, byte(number))
	data = append(data, 0x01)
	if state == 1 {
		data = append(data, 0xFF)
	} else {
		data = append(data, 0x00)
	}
	crc16 := utils.CRC16(data)
	data = append(data, byte(crc16&0xFF))
	data = append(data, byte(crc16>>8))
	return
}

func SolarEnergyData() (data []byte) {
	data = append(data, 0x01)
	data = append(data, 0x03)
	data = append(data, 0x00)
	data = append(data, 0x04)
	data = append(data, 0x00)
	data = append(data, 0x1b)
	crc16 := utils.CRC16(data)
	data = append(data, byte(crc16&0xFF))
	data = append(data, byte(crc16>>8))
	return
}

// UpdateRegisterAddress 修改寄存器地址
func UpdateRegisterAddress() (data []byte) {
	data = append(data, 0x01)
	data = append(data, 0x10)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, 0x01)
	data = append(data, 0x02)
	data = append(data, 0x00)
	data = append(data, 0x11)
	crc16 := utils.CRC16(data)
	data = append(data, byte(crc16&0xFF))
	data = append(data, byte(crc16>>8))
	return
}

func ReadDeviceInfo(number int) (data []byte) {
	data = append(data, 0xFE)
	data = append(data, 0x01)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, 0x00)
	data = append(data, byte(number))
	crc16 := utils.CRC16(data)
	data = append(data, byte(crc16&0xFF))
	data = append(data, byte(crc16>>8))
	return
}