package conditions

import (
	"fmt"
	"reflect"

	apierrors "k8s.io/apimachinery/pkg/api/errors"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

type Conditioner interface {
	SetCondition(condition metav1.Condition)
}

type Patcher func(Conditioner)

type Ready struct{}

func NewReady() *Ready {
	return &Ready{}
}

func (p *Ready) PatcherFailed(msg string) Patcher {
	return func(c Conditioner) {
		SetReadyFailedWithMessage(c, msg)
	}
}

func (p *Ready) PatcherWithError(err error) Patcher {
	return func(c Conditioner) {
		if err == nil {
			SetReadyCreated(c)
		} else {
			SetReadyFailed(c)
		}
	}
}

func (p *Ready) PatcherRefResolver(err error, obj interface{}) Patcher {
	return func(c Conditioner) {
		if err == nil {
			return
		}
		if apierrors.IsNotFound(err) {
			SetReadyFailedWithMessage(c, fmt.Sprintf("%s not found", getType(obj)))
			return
		}
		SetReadyFailedWithMessage(c, fmt.Sprintf("Error getting %s", getType(obj)))
	}
}

func (p *Ready) PatcherHealthy(err error) Patcher {
	return func(c Conditioner) {
		if err == nil {
			SetReadyHealthty(c)
		} else {
			SetReadyUnhealthtyWithError(c, err)
		}
	}
}

func getType(obj interface{}) string {
	if t := reflect.TypeOf(obj); t.Kind() == reflect.Ptr {
		return t.Elem().Name()
	} else {
		return t.Name()
	}
}