package influxdb

import (
	"context"
)

// ErrScraperTargetNotFound is the error msg for a missing scraper target.
const ErrScraperTargetNotFound = "scraper target not found"

// ops for ScraperTarget Store
const (
	OpListTargets   = "ListTargets"
	OpAddTarget     = "AddTarget"
	OpGetTargetByID = "GetTargetByID"
	OpRemoveTarget  = "RemoveTarget"
	OpUpdateTarget  = "UpdateTarget"
)

// ScraperTarget is a target to scrape
type ScraperTarget struct {
	ID       ID          `json:"id,omitempty"`
	Name     string      `json:"name"`
	Type     ScraperType `json:"type"`
	URL      string      `json:"url"`
	OrgID    ID          `json:"orgID,omitempty"`
	BucketID ID          `json:"bucketID,omitempty"`
}

// ScraperTargetStoreService defines the crud service for ScraperTarget.
type ScraperTargetStoreService interface {
	UserResourceMappingService
	ListTargets(ctx context.Context) ([]ScraperTarget, error)
	AddTarget(ctx context.Context, t *ScraperTarget, userID ID) error
	GetTargetByID(ctx context.Context, id ID) (*ScraperTarget, error)
	RemoveTarget(ctx context.Context, id ID) error
	UpdateTarget(ctx context.Context, t *ScraperTarget, userID ID) (*ScraperTarget, error)
}

// ScraperTargetFilter represents a set of filter that restrict the returned results.
type ScraperTargetFilter struct {
	ID   *ID     `json:"id"`
	Name *string `json:"name"`
}

// ScraperType defines the scraper methods.
type ScraperType string

// Scraper types
const (
	// PrometheusScraperType parses metrics from a prometheus endpoint.
	PrometheusScraperType = "prometheus"
)

// ValidScraperType returns true is the type string is valid
func ValidScraperType(s string) bool {
	switch s {
	case PrometheusScraperType:
		return true
	default:
		return false
	}
}