firehol/netdata

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

package freeradius

import (
    _ "embed"
    "errors"
    "time"

    "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/modules/freeradius/api"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/confopt"
)

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

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

func New() *FreeRADIUS {
    return &FreeRADIUS{
        Config: Config{
            Address: "127.0.0.1",
            Port:    18121,
            Secret:  "adminsecret",
            Timeout: confopt.Duration(time.Second),
        },
    }
}

type Config struct {
    UpdateEvery int              `yaml:"update_every" json:"update_every"`
    Address     string           `yaml:"address" json:"address"`
    Port        int              `yaml:"port" json:"port"`
    Secret      string           `yaml:"secret" json:"secret"`
    Timeout     confopt.Duration `yaml:"timeout" json:"timeout"`
}

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

        client
    }
    client interface {
        Status() (*api.Status, error)
    }
)

func (f *FreeRADIUS) Configuration() any {
    return f.Config
}

func (f *FreeRADIUS) Init() error {
    if err := f.validateConfig(); err != nil {
        f.Errorf("config validation: %v", err)
        return err
    }

    f.client = api.New(api.Config{
        Address: f.Address,
        Port:    f.Port,
        Secret:  f.Secret,
        Timeout: f.Timeout.Duration(),
    })

    return nil
}

func (f *FreeRADIUS) Check() error {
    mx, err := f.collect()
    if err != nil {
        f.Error(err)
        return err
    }
    if len(mx) == 0 {
        return errors.New("no metrics collected")

    }
    return nil
}

func (f *FreeRADIUS) Charts() *Charts {
    return charts.Copy()
}

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

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

func (f *FreeRADIUS) Cleanup() {}