package controller

import (
	"time"

	kubeinformers "k8s.io/client-go/informers"
	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/tools/record"

	clientset "github.com/jetstack/cert-manager/pkg/client/clientset/versioned"
	informers "github.com/jetstack/cert-manager/pkg/client/informers/externalversions"
)

// Context contains various types that are used by controller implementations.
// We purposely don't have specific informers/listers here, and instead keep
// a reference to a SharedInformerFactory so that controllers can choose
// themselves which listers are required.
type Context struct {
	// Client is a Kubernetes clientset
	Client kubernetes.Interface
	// CMClient is a cert-manager clientset
	CMClient clientset.Interface
	// Recorder to record events to
	Recorder record.EventRecorder

	// KubeSharedInformerFactory can be used to obtain shared
	// SharedIndexInformer instances for Kubernetes types
	KubeSharedInformerFactory kubeinformers.SharedInformerFactory
	// SharedInformerFactory can be used to obtain shared SharedIndexInformer
	// instances
	SharedInformerFactory informers.SharedInformerFactory

	IssuerOptions
	ACMEOptions
	IngressShimOptions
}

func (c *Context) IssuerFactory() IssuerFactory {
	return NewIssuerFactory(c)
}

type IssuerOptions struct {
	// ClusterResourceNamespace is the namespace to store resources created by
	// non-namespaced resources (e.g. ClusterIssuer) in.
	ClusterResourceNamespace string

	// ClusterIssuerAmbientCredentials controls whether a cluster issuer should
	// pick up ambient credentials, such as those from metadata services, to
	// construct clients.
	ClusterIssuerAmbientCredentials bool

	// IssuerAmbientCredentials controls whether an issuer should pick up ambient
	// credentials, such as those from metadata services, to construct clients.
	IssuerAmbientCredentials bool

	// RenewBeforeExpiryDuration is the default 'renew before expiry' time for Certificates.
	// Once a certificate is within this duration until expiry, a new Certificate
	// will be attempted to be issued.
	RenewBeforeExpiryDuration time.Duration
}

type ACMEOptions struct {
	// ACMEHTTP01SolverImage is the image to use for solving ACME HTTP01
	// challenges
	HTTP01SolverImage string

	// DNS01Nameservers is a list of nameservers to use when performing self-checks
	// for ACME DNS01 validations.
	DNS01Nameservers []string
}

type IngressShimOptions struct {
	// Default issuer/certificates details consumed by ingress-shim
	DefaultIssuerName                  string
	DefaultIssuerKind                  string
	DefaultACMEIssuerChallengeType     string
	DefaultACMEIssuerDNS01ProviderName string
}