package internal

import (
	"fmt"
	"oc-k8s/utils"
	"os"
)

func Help_Helm() {
	fmt.Println(`
Helm commands: oc-k8s <action> helm
  install  - Install Helm
  create   - Install a helm release for the given environment (default: dev)
  delete   - Uninstall a helm release for the given environment (default: dev)
  help     - Show this help message

Usage:
  oc-k8s install helm 
  oc-k8s create helm [env_folder] [release] [namespace]
  	env_folder - Helm config folder (required, default: .)
    release - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8s upgrade helm [env_folder] [release] [namespace]
  	env_folder - Helm config folder (required, default: .)
    release - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8s delete helm [release] [namespace]
    release - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8sh help helm`)
}

func Install_Helm() error {
	utils.Exec("curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash")
	utils.Exec("helm version")
	return nil
}

func Delete_Helm(args ...string) error {
	env := "dev"
	namespace := "dev"
	if len(args) > 0 {
		env = args[0]
	}
	if len(args) > 1 {
		namespace = args[1]
	}
	utils.Exec("helm uninstall " + env + " -n " + namespace)
	utils.Exec("kubectl delete namespace " + namespace + " &")
	return nil
}

func Create_Helm(args ...string) error {
	folder := "."
	release := "dev"
	namespace := "dev"
	if len(args) > 0 {
		folder = args[0]
	}
	Delete_Cluster(args[1:]...)

	if len(args) > 1 {
		release = args[1]
	}
	if len(args) > 2 {
		namespace = args[2]
	}
	clusterName := "opencloud"
	if b, err := os.ReadFile(folder + "/" + release + "-values.yaml"); err == nil {
		clusterName, _ = utils.Extract(string(b), "clusterName")
	}
	if err := utils.Exec("helm dependency update"); err != nil {
		return err
	}
	if err := utils.Exec("helm dependency build"); err != nil {
		return err
	}
	utils.Exec("kubectl delete sc longhorn-nor1")
	utils.Exec("sudo ulimit -n 1000000")
	if err := utils.Exec("helm install " + release + " " + clusterName + " -n " + namespace + " --create-namespace -f " + folder + "/" + release + "-values.yaml --debug"); err != nil {
		return err
	}

	utils.Exec("kind get kubeconfig --name opencloud > ./deployed_config")
	utils.Exec("kind export logs ./kind-logs")
	return nil
}

func Upgrade_Helm(args ...string) error {
	folder := "."
	release := "dev"
	namespace := "dev"
	if len(args) > 0 {
		folder = args[0]
	}
	Delete_Cluster(args[1:]...)

	if len(args) > 1 {
		release = args[1]
	}
	if len(args) > 2 {
		namespace = args[2]
	}
	clusterName := "opencloud"
	if b, err := os.ReadFile(folder + "/" + release + "-values.yaml"); err == nil {
		clusterName, _ = utils.Extract(string(b), "clusterName")
	}
	return utils.Exec("helm upgrade " + release + " " + clusterName + " -n " + namespace + " --create-namespace -f " + folder + "/" + release + "-values.yaml")
}