lora.go

package main

import (
	"strconv"

	lwband "github.com/brocaar/lorawan/band"
	"github.com/inkyblackness/imgui-go"
)

// Bands and data rate options.
var (
	bandwidths    = []int{50, 125, 250, 500}
	spreadFactors = []int{7, 8, 9, 10, 11, 12}
	bands         = []lwband.Name{
		lwband.AS_923,
		lwband.AU_915_928,
		lwband.CN_470_510,
		lwband.CN_779_787,
		lwband.EU_433,
		lwband.EU_863_870,
		lwband.IN_865_867,
		lwband.KR_920_923,
		lwband.US_902_928,
		lwband.RU_864_870,
	}
)

type band struct {
	Name lwband.Name `toml:"name"`
}

type dataRate struct {
	Bandwidth    int    `toml:"bandwith"`
	SpreadFactor int    `toml:"spread_factor"`
	BitRate      int    `toml:"bit_rate"`
	BitRateS     string `toml:"-"`
}

type rxInfo struct {
	Channel   int     `toml:"channel"`
	CodeRate  string  `toml:"code_rate"`
	CrcStatus int     `toml:"crc_status"`
	Frequency int     `toml:"frequency"`
	LoRaSNR   float64 `toml:"lora_snr"`
	RfChain   int     `toml:"rf_chain"`
	Rssi      int     `toml:"rssi"`
	//String representations for numeric values so that we can manage them with input texts.
	ChannelS   string `toml:"-"`
	CrcStatusS string `toml:"-"`
	FrequencyS string `toml:"-"`
	LoRASNRS   string `toml:"-"`
	RfChainS   string `toml:"-"`
	RssiS      string `toml:"-"`
}

func beginLoRaForm() {
	//imgui.SetNextWindowPos(imgui.Vec2{X: 10, Y: 650})
	//imgui.SetNextWindowSize(imgui.Vec2{X: 380, Y: 265})
	imgui.Begin("LoRa Configuration")
	imgui.PushItemWidth(250.0)
	if imgui.BeginCombo("Band", string(config.Band.Name)) {
		for _, band := range bands {
			if imgui.SelectableV(string(band), band == config.Band.Name, 0, imgui.Vec2{}) {
				config.Band.Name = band
			}
		}
		imgui.EndCombo()
	}

	if imgui.BeginCombo("Bandwidth", strconv.Itoa(config.DR.Bandwidth)) {
		for _, bandwidth := range bandwidths {
			if imgui.SelectableV(strconv.Itoa(bandwidth), bandwidth == config.DR.Bandwidth, 0, imgui.Vec2{}) {
				config.DR.Bandwidth = bandwidth
			}
		}
		imgui.EndCombo()
	}

	if imgui.BeginCombo("SpreadFactor", strconv.Itoa(config.DR.SpreadFactor)) {
		for _, sf := range spreadFactors {
			if imgui.SelectableV(strconv.Itoa(sf), sf == config.DR.SpreadFactor, 0, imgui.Vec2{}) {
				config.DR.SpreadFactor = sf
			}
		}
		imgui.EndCombo()
	}

	imgui.InputTextV("Bit rate", &config.DR.BitRateS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways|imgui.InputTextFlagsCallbackCharFilter, handleInt(config.DR.BitRateS, 6, &config.DR.BitRate))

	imgui.InputTextV("Channel", &config.RXInfo.ChannelS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways|imgui.InputTextFlagsCallbackCharFilter, handleInt(config.RXInfo.ChannelS, 10, &config.RXInfo.Channel))

	imgui.InputTextV("CrcStatus", &config.RXInfo.CrcStatusS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways|imgui.InputTextFlagsCallbackCharFilter, handleInt(config.RXInfo.CrcStatusS, 10, &config.RXInfo.CrcStatus))

	imgui.InputTextV("Frequency", &config.RXInfo.FrequencyS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways|imgui.InputTextFlagsCallbackCharFilter, handleInt(config.RXInfo.FrequencyS, 14, &config.RXInfo.Frequency))

	imgui.InputTextV("LoRaSNR", &config.RXInfo.LoRASNRS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways, handleFloat64(config.RXInfo.LoRASNRS, &config.RXInfo.LoRaSNR))

	imgui.InputTextV("RfChain", &config.RXInfo.RfChainS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways, handleInt(config.RXInfo.RfChainS, 10, &config.RXInfo.RfChain))

	imgui.InputTextV("Rssi", &config.RXInfo.RssiS, imgui.InputTextFlagsCharsDecimal|imgui.InputTextFlagsCallbackAlways|imgui.InputTextFlagsCallbackCharFilter, handleInt(config.RXInfo.RssiS, 10, &config.RXInfo.Rssi))

	imgui.End()
}