package v1

import (
	"errors"
	sq "github.com/Masterminds/squirrel"
	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"regexp"
	"strconv"

	argoprojv1alpha1 "github.com/argoproj/argo/pkg/client/clientset/versioned/typed/workflow/v1alpha1"
	"github.com/jmoiron/sqlx"
	"github.com/onepanelio/core/pkg/util/s3"
	log "github.com/sirupsen/logrus"
	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/rest"
	"k8s.io/client-go/tools/clientcmd"
)

type Config = rest.Config

type DB = sqlx.DB

var sb = sq.StatementBuilder.PlaceholderFormat(sq.Dollar)

type Client struct {
	kubernetes.Interface
	argoprojV1alpha1 argoprojv1alpha1.ArgoprojV1alpha1Interface
	*DB
}

func (c *Client) ArgoprojV1alpha1() argoprojv1alpha1.ArgoprojV1alpha1Interface {
	return c.argoprojV1alpha1
}

func NewConfig() (config *Config) {
	config, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
		clientcmd.NewDefaultClientConfigLoadingRules(), &clientcmd.ConfigOverrides{}).ClientConfig()
	if err != nil {
		panic(err)
	}

	return
}

func NewClient(config *Config, db *sqlx.DB) (client *Client, err error) {
	if config.BearerToken != "" {
		config.BearerTokenFile = ""
		config.Username = ""
		config.Password = ""
		config.CertData = nil
		config.CertFile = ""
	}

	kubeClient, err := kubernetes.NewForConfig(config)
	if err != nil {
		return
	}

	argoClient, err := argoprojv1alpha1.NewForConfig(config)
	if err != nil {
		return
	}

	return &Client{Interface: kubeClient, argoprojV1alpha1: argoClient, DB: db}, nil
}

func (c *Client) GetS3Client(namespace string, config *ArtifactRepositoryS3Config) (s3Client *s3.Client, err error) {
	insecure, err := strconv.ParseBool(config.Insecure)
	if err != nil {
		log.WithFields(log.Fields{
			"Namespace": namespace,
			"ConfigMap": config,
			"Error":     err.Error(),
		}).Error("getS3Client failed when parsing bool.")
		return
	}
	s3Client, err = s3.NewClient(s3.Config{
		Endpoint:  config.Endpoint,
		Region:    config.Region,
		AccessKey: config.AccessKey,
		SecretKey: config.Secretkey,
		InSecure:  insecure,
	})
	if err != nil {
		log.WithFields(log.Fields{
			"Namespace": namespace,
			"ConfigMap": config,
			"Error":     err.Error(),
		}).Error("getS3Client failed when initializing a new S3 client.")
		return
	}

	return
}

func GetBearerToken(namespace string) (string, error) {
	kubeConfig := NewConfig()
	client, err := NewClient(kubeConfig, nil)
	if err != nil {
		log.Fatalf("Failed to connect to Kubernetes cluster: %v", err)
	}

	secrets, err := client.CoreV1().Secrets(namespace).List(v1.ListOptions{})
	if err != nil {
		log.WithFields(log.Fields{
			"Namespace": namespace,
			"Error":     err.Error(),
		}).Error("Failed to get default service account token.")
		return "", err
	}
	re := regexp.MustCompile(`^default-token-`)
	for _, secret := range secrets.Items {
		if re.Find([]byte(secret.ObjectMeta.Name)) != nil {
			return string(secret.Data["token"]), nil
		}
	}
	return "", errors.New("could not find a token")
}