package checker

import (
	"context"
	"fmt"

	sdk "git.happydns.org/checker-sdk-go/checker"
)

type rulePresent struct{}

func RulePresent() sdk.CheckRule { return &rulePresent{} }
func (rulePresent) Name() string { return "srv_records_present" }
func (rulePresent) Description() string {
	return "At least one SRV record is published for this service."
}
func (rulePresent) Evaluate(ctx context.Context, obs sdk.ObservationGetter, _ sdk.CheckerOptions) []sdk.CheckState {
	d, cs := getData(ctx, obs)
	if cs != nil {
		return []sdk.CheckState{*cs}
	}
	if len(d.Records) == 0 {
		return []sdk.CheckState{{Status: sdk.StatusCrit, Code: "srv_missing",
			Message: "No SRV records published."}}
	}
	return []sdk.CheckState{{Status: sdk.StatusOK, Code: "srv_present",
		Message: fmt.Sprintf("%d SRV record(s) published.", len(d.Records))}}
}