PKGBUILD/pkg/cli/cli.go

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package cli
import (
"errors"
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"fmt"
"io"
"regexp"
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"text/tabwriter"
"github.com/volker-raschek/flucky/pkg/config"
"github.com/volker-raschek/flucky/pkg/types"
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)
var (
errorMeasuredValueIDNotValid = errors.New("Measured value id is not a valid uuid")
errorSensorIDNotValid = errors.New("Sensor id is not a valid uuid")
validUUID = regexp.MustCompile("^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$")
)
// GetSensorIDsByMeasuredValues returns commulated list of sensors by measured values
func GetSensorIDsByMeasuredValues(measuredValues []*types.MeasuredValue, cnf *config.Configuration) (map[string]*types.Sensor, error) {
sensors := make(map[string]*types.Sensor)
for _, measuredValue := range measuredValues {
// check if sensor id is valid
if !validUUID.MatchString(measuredValue.ID) {
return nil, errorMeasuredValueIDNotValid
}
// check if sensor id is valid
if !validUUID.MatchString(measuredValue.SensorID) {
return nil, errorSensorIDNotValid
}
if _, ok := sensors[measuredValue.SensorID]; !ok {
sensors[measuredValue.SensorID] = cnf.GetSensorByID(measuredValue.SensorID)
}
}
return sensors, nil
}
// PrintRGBLEDs displays a list with all configured RGBLEDs
func PrintRGBLEDs(cnf *config.Configuration, w io.Writer) {
// declare tabwriter
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
// headline
fmt.Fprintln(tw, "name\tlocation\tblue\tgreen\tred\tenabled\taction")
for _, rgbled := range cnf.RGBLEDs {
fmt.Fprintf(tw, "%v\t%v\t%v\t%v\t%v\t%v\t", rgbled.RGBLEDName, rgbled.RGBLEDLocation, *rgbled.BaseColorsToGPIO[types.BaseColorBlue], *rgbled.BaseColorsToGPIO[types.BaseColorGreen], *rgbled.BaseColorsToGPIO[types.BaseColorRed], rgbled.RGBLEDEnabled)
for action, color := range rgbled.ActionMapping {
fmt.Fprintf(tw, "%v=%v,", action, color)
}
fmt.Fprintf(tw, "\n")
}
tw.Flush()
}
// PrintSensors displays a list with all configured sensors
func PrintSensors(cnf *config.Configuration, w io.Writer) error {
// declar tabwriter
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
fmt.Fprint(tw, "name\tlocation\ttype\twire-id\ti2c-bus\ti2c-address\tgpio\ttick-duration\tenabled\n")
for _, sensor := range cnf.Sensors {
fmt.Fprintf(tw, "%v\t%v\t%v\t", sensor.Name, sensor.Location, sensor.Model)
if sensor.WireID != nil {
fmt.Fprintf(tw, "%v\t", *sensor.WireID)
} else {
fmt.Fprintf(tw, "\t")
}
if sensor.I2CBus != nil {
fmt.Fprintf(tw, "%v\t", *sensor.I2CBus)
} else {
fmt.Fprintf(tw, "\t")
}
if sensor.I2CAddress != nil {
fmt.Fprintf(tw, "%#v\t", *sensor.I2CAddress)
} else {
fmt.Fprintf(tw, "\t")
}
if sensor.GPIONumber != nil {
fmt.Fprintf(tw, "%v\t", *sensor.GPIONumber)
} else {
fmt.Fprintf(tw, "\t")
}
fmt.Fprintf(tw, "%v\t%v\n", sensor.TickDuration, sensor.Enabled)
}
tw.Flush()
return nil
}
// PrintMeasuredValues displays a list of measured values
func PrintMeasuredValues(measuredValues []*types.MeasuredValue, cnf *config.Configuration, w io.Writer) error {
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sensors, err := GetSensorIDsByMeasuredValues(measuredValues, cnf)
if err != nil {
return err
}
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// sort measured values for every sensor
orderedMeasuredValues := make(map[string][]*types.MeasuredValue)
for _, measuredValue := range measuredValues {
orderedMeasuredValues[measuredValue.SensorID] = append(orderedMeasuredValues[measuredValue.SensorID], measuredValue)
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}
// declare tabwriter
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
// headlines
i := 0
for _, sensor := range sensors {
fmt.Fprintf(tw, "%v\t", sensor.FullName())
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if i == len(sensors)-1 {
fmt.Fprintf(tw, "\n")
}
i++
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}
// find sensor with the most measured values
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maxLength := 0
for _, orderedMeasuredValue := range orderedMeasuredValues {
if len(orderedMeasuredValue) > maxLength {
maxLength = len(orderedMeasuredValue)
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}
}
// body
for i := 0; i < maxLength; i++ {
for _, sensor := range sensors {
if len(orderedMeasuredValues[sensor.ID]) > i {
fmt.Fprintf(tw, "%3.3f\t", orderedMeasuredValues[sensor.ID][i].Value)
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} else {
fmt.Fprint(tw, "\t")
}
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}
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fmt.Fprint(tw, "\n")
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}
tw.Flush()
return err
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}