firehol/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package w1sensor

import (
    _ "embed"
    "errors"

    "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module"
)

//go:embed "config_schema.json"
var configSchema string

func init() {
    module.Register("w1sensor", module.Creator{
        JobConfigSchema: configSchema,
        Defaults: module.Defaults{
            UpdateEvery: 1,
        },
        Create: func() module.Module { return New() },
        Config: func() any { return &Config{} },
    })
}

func New() *W1sensor {
    return &W1sensor{
        Config: Config{
            SensorsPath: "/sys/bus/w1/devices",
        },
        charts:      &module.Charts{},
        seenSensors: make(map[string]bool),
    }
}

type Config struct {
    UpdateEvery int    `yaml:"update_every,omitempty" json:"update_every"`
    SensorsPath string `yaml:"sensors_path,omitempty" json:"sensors_path"`
}

type (
    W1sensor struct {
        module.Base
        Config `yaml:",inline" json:""`

        charts *module.Charts

        seenSensors map[string]bool
    }
)

func (w *W1sensor) Configuration() any {
    return w.Config
}

func (w *W1sensor) Init() error {
    if w.SensorsPath == "" {
        w.Errorf("sensors_path required but not set")
        return errors.New("no sensors path specified")
    }

    return nil
}

func (w *W1sensor) Check() error {
    mx, err := w.collect()
    if err != nil {
        w.Error(err)
        return err
    }

    if len(mx) == 0 {
        return errors.New("no metrics collected")
    }

    return nil
}

func (w *W1sensor) Charts() *module.Charts {
    return w.charts
}

func (w *W1sensor) Collect() map[string]int64 {
    mx, err := w.collect()
    if err != nil {
        w.Error(err)
    }

    if len(mx) == 0 {
        return nil
    }

    return mx
}

func (w *W1sensor) Cleanup() {}