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

package megacli

import (
	"context"
	_ "embed"
	"errors"
	"fmt"
	"time"

	"github.com/netdata/netdata/go/plugins/pkg/confopt"
	"github.com/netdata/netdata/go/plugins/plugin/framework/collectorapi"
)

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

func init() {
	collectorapi.Register("megacli", collectorapi.Creator{
		JobConfigSchema: configSchema,
		Defaults: collectorapi.Defaults{
			UpdateEvery: 10,
		},
		Create: func() collectorapi.CollectorV1 { return New() },
		Config: func() any { return &Config{} },
	})
}

func New() *Collector {
	return &Collector{
		Config: Config{
			Timeout: confopt.Duration(time.Second * 2),
		},
		charts:   &collectorapi.Charts{},
		adapters: make(map[string]bool),
		drives:   make(map[string]bool),
		bbu:      make(map[string]bool),
		doBBU:    true,
	}
}

type Config struct {
	UpdateEvery int              `yaml:"update_every,omitempty" json:"update_every"`
	Timeout     confopt.Duration `yaml:"timeout,omitempty" json:"timeout"`
}

type Collector struct {
	collectorapi.Base
	Config `yaml:",inline" json:""`

	charts *collectorapi.Charts

	exec megaCli

	adapters map[string]bool
	drives   map[string]bool
	bbu      map[string]bool
	doBBU    bool
}

func (c *Collector) Configuration() any {
	return c.Config
}

func (c *Collector) Init(context.Context) error {
	lvmExec, err := c.initMegaCliExec()
	if err != nil {
		return fmt.Errorf("init megacli exec: %v", err)
	}
	c.exec = lvmExec

	return nil
}

func (c *Collector) Check(context.Context) error {
	mx, err := c.collect()
	if err != nil {
		return err
	}

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

	return nil
}

func (c *Collector) Charts() *collectorapi.Charts {
	return c.charts
}

func (c *Collector) Collect(context.Context) map[string]int64 {
	mx, err := c.collect()
	if err != nil {
		c.Error(err)
	}

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

	return mx
}

func (c *Collector) Cleanup(context.Context) {}
