package cmd

import (
	"fmt"
	"os"
	"path"
	"path/filepath"

	"git.apinb.com/bsm-sdk/engine/env"
	"git.apinb.com/bsm-sdk/engine/utils"
	"github.com/spf13/cobra"
)

var installCmd = &cobra.Command{
	Use:   "install",
	Short: "<ServiceKey> 安装一个微服务.",
	Run: func(cmd *cobra.Command, args []string) {
		if len(args) != 1 {
			fmt.Println("Please input the name of the microservice to be installed!")
			return
		}

		srv := args[0]
		execbin := filepath.Join(env.MeshEnv.Prefix, srv)
		binExists := utils.PathExists(execbin)
		if binExists {
			fmt.Println(srv, "microservice already exists")
		} else {
			installExecute(srv)
		}
	},
}

func installExecute(srv string) {
	fmt.Println("[1/6] Check local direct[logs,etc].")
	if !utils.PathExists(env.MeshEnv.Prefix) {
		utils.CreateDir(env.MeshEnv.Prefix)
	}
	logsPath := path.Join(env.MeshEnv.Prefix, "logs")
	if !utils.PathExists(logsPath) {
		utils.CreateDir(logsPath)
	}
	etcPath := path.Join(env.MeshEnv.Prefix, "etc")
	if !utils.PathExists(etcPath) {
		utils.CreateDir(etcPath)
	}

	fmt.Println("[2/6] Check OS ENV BlocksMesh_Workspace,BlocksMesh_RuntimeMode:", env.MeshEnv.Workspace, ",", env.MeshEnv.RuntimeMode)
	service, info := getMs(srv)
	fmt.Println("[3/6] Search Microservice:", info)

	if service != nil {

		yamlUrl := fmt.Sprintf("%s%s/%s/%s_%s.yaml", service.OssUrl, service.EtcPath, env.MeshEnv.Workspace, srv, env.MeshEnv.RuntimeMode)
		body, err := utils.HttpGet(yamlUrl)
		checkError(err)
		fmt.Println("[4/6] Download YAML Configure:", yamlUrl, " [OK]")
		yamlPath := filepath.Join(env.MeshEnv.Prefix, service.EtcPath, fmt.Sprintf("%s_%s.yaml", srv, env.MeshEnv.RuntimeMode))
		utils.StringToFile(yamlPath, string(body))

		downUrl := service.OssUrl + service.FilePath
		fmt.Println("[5/6] Download Binrary File:", downUrl)
		binPath := filepath.Join(env.MeshEnv.Prefix, srv)
		DownloadFile(downUrl, binPath, func(length, downLen int64) {
			fmt.Fprintf(os.Stdout, "Total:%d KB, Current:%d KB, Percent:%.2f%%\r", length, downLen, (float32(downLen)/float32(length))*100)
		})

		fmt.Println("[6/6] Restart Microservice:", srv)
		service.Start()
		fmt.Println("Install Successful!")
	}

}

func getMs(srv string) (*Service, string) {
	reles := getRegistryReleases()
	for _, v := range reles.Data {
		if v.ServiceKey == srv {
			return &v, fmt.Sprintf("Ident:%s, Version:%s, Oss:%s", v.Identity, v.Version, v.OssUrl)
		}
	}

	return nil, "Not Found."
}