110 lines
2.3 KiB
Go
110 lines
2.3 KiB
Go
package temperature
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import (
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"fmt"
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"io"
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"path/filepath"
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"text/tabwriter"
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"git.cryptic.systems/fh-trier/go-flucky/pkg/config"
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"git.cryptic.systems/fh-trier/go-flucky/pkg/sensor"
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"git.cryptic.systems/fh-trier/go-flucky/pkg/types"
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)
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// AddDS18B20 a new temperature sensor from type ds18b20
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func AddDS18B20(sensorID, sensorName, configDir, wirePath string) error {
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// read cnf file
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cnf, err := config.Read(configDir)
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if err != nil {
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return err
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}
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// check if sensor exists
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if !sensor.Exists(wirePath, sensorID) {
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return fmt.Errorf("Can not find sensor: %v", filepath.Join(wirePath, sensorID))
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}
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// check if sensor is redundant
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if sensor.IsRedundant(sensorID, cnf.TemperatureSensors) {
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return fmt.Errorf("Sensor %v already exists as temperature sensor", sensorID)
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}
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temperatureSensor := &types.WireSensor{
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ID: sensorID,
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Name: sensorName,
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Typ: types.SENSOR_DS18B20,
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WirePath: wirePath,
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}
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// append sensor to list
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cnf.TemperatureSensors = append(cnf.TemperatureSensors, temperatureSensor)
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// write cnf file
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if err := config.Write(cnf, configDir); err != nil {
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return err
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}
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return nil
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}
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// Print a list with the given writer w over all temperature sensors
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func Print(w io.Writer, configDir string, quiet bool) error {
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// read cnf file
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cnf, err := config.Read(configDir)
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if err != nil {
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return err
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}
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// declar tabwriter
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tw := tabwriter.NewWriter(w, 0, 0, 5, ' ', 0)
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// headline
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if !quiet {
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fmt.Fprint(tw, "id\tname\ttype\tpath\n")
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}
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for _, sensor := range cnf.TemperatureSensors {
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if quiet {
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fmt.Fprintf(tw, "%v\n", sensor.ID)
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} else {
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fmt.Fprintf(tw, "%v\t%v\t%v\t%v\n", sensor.ID, sensor.Name, sensor.Typ, sensor.WirePath)
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}
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}
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tw.Flush()
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return nil
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}
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// Remove a temperature sensor over the given sensor id
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func Remove(sensorID, configDir string) error {
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// read cnf file
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cnf, err := config.Read(configDir)
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if err != nil {
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return err
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}
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// remove matching sensor ids
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var j int
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for _, sensor := range cnf.TemperatureSensors {
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if sensor.ID == sensorID {
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cnf.TemperatureSensors = append(cnf.TemperatureSensors[:j], cnf.TemperatureSensors[j+1:]...)
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if j > 0 {
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j = j - 1
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}
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continue
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}
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j++
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}
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// write cnf file
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if err := config.Write(cnf, configDir); err != nil {
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return err
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}
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return nil
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}
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