package cmd

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

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

type LocalServices struct {
	Srv          Service
	LocalVersion string
}

var checkCmd = &cobra.Command{
	Use:   "check",
	Short: "check etc/service/registry auto version update or install.",
	Run: func(cmd *cobra.Command, args []string) {
		if len(args) != 1 {
			fmt.Println("Please input the name of the microservice to be updated!")
			return
		}

		subcmd := strings.ToLower(args[0])
		switch subcmd {
		case "etc":
			// 检测并更新本地已经安装的所有微服务的配置文件
			ls := getLocalServices()
			etcExecute(ls)
		case "service":
			// 检测并更新本地已经安装的所有微服务
			ls := getLocalServices()
			serviceExecute(ls)
		case "registry":
			// 检测并更新Registry已经发布的所有微服务
			rs := getRegistryServices()
			registryExecute(rs)
		default:
			fmt.Println("check sub command: etc/server/registry ")
			return
		}
	},
}

func etcExecute(ls []LocalServices) {
	for _, service := range ls {
		yamlUrl := fmt.Sprintf("%s%s/%s/%s_%s.yaml", service.Srv.OssUrl, service.Srv.EtcPath, env.MeshEnv.Workspace, service.Srv.ServiceKey, env.MeshEnv.RuntimeMode)
		body, err := utils.HttpGet(yamlUrl)
		checkError(err)
		fmt.Println("Check YAML Configure:", yamlUrl, " [OK]")
		yamlPath := filepath.Join(env.MeshEnv.Prefix, service.Srv.EtcPath, fmt.Sprintf("%s_%s.yaml", service.Srv.ServiceKey, env.MeshEnv.RuntimeMode))
		utils.StringToFile(yamlPath, string(body))
	}
}

func getLocalServices() []LocalServices {
	reles := getRegistryReleases()

	dirFs, err := os.ReadDir(env.MeshEnv.Prefix)
	checkError(err)

	ls := make([]LocalServices, 0)
	for _, v := range dirFs {
		version := getCurrentVersion(v.Name())
		if version != " - " {
			for _, srv := range reles.Data {
				ls = append(ls, LocalServices{
					Srv:          srv,
					LocalVersion: version,
				})
			}
		}

	}

	return ls
}

func getRegistryServices() []Service {
	reles := getRegistryReleases()

	rs := make([]Service, 0)
	for _, srv := range reles.Data {
		localVersion := getCurrentVersion(srv.ServiceKey)
		if localVersion == " - " || srv.Version != localVersion {
			rs = append(rs, srv)
		}
	}

	return rs
}

func serviceExecute(ls []LocalServices) {
	for _, service := range ls {
		if service.LocalVersion == service.Srv.Version {
			fmt.Println("Skip [", service.Srv.ServiceKey, "], already latest version :", service.Srv.Version)
		} else {
			service.Srv.Stop()
			downUrl := service.Srv.OssUrl + service.Srv.FilePath
			fmt.Println("Check Microservice", service.Srv.ServiceKey, service.Srv.Version, downUrl)
			binPath := filepath.Join(env.MeshEnv.Prefix, service.Srv.ServiceKey)
			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)
			})
			service.Srv.Start()
		}
	}
}

func registryExecute(rs []Service) {
	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)
	}

	for _, service := range rs {
		service.Stop()

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

		downUrl := service.OssUrl + service.FilePath
		fmt.Println("Found Registry Microservice:", service.ServiceKey, service.Version)
		binPath := filepath.Join(env.MeshEnv.Prefix, service.ServiceKey)
		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("Restart Microservice:", service.ServiceKey)
		service.Start()

	}
}