package buildinfo

import (
	"context"
	"runtime/debug"

	"forge.cadoles.com/Cadoles/emissary/internal/agent/metadata"
	"github.com/pkg/errors"
)

const (
	MetadataBuildInfo = "buildinfo"
)

type Collector struct{}

// Collect implements agent.MetadataCollector
func (c *Collector) Collect(ctx context.Context) (string, string, error) {
	buildInfo, ok := debug.ReadBuildInfo()
	if !ok {
		return "", "", errors.WithStack(metadata.ErrMetadataNotAvailable)
	}

	return MetadataBuildInfo, buildInfo.String(), nil
}

func NewCollector() *Collector {
	return &Collector{}
}

var _ metadata.Collector = &Collector{}