package userspace

import (
	"fmt"
	"strconv"
	"strings"

	"github.com/chzyer/readline"
	"github.com/spf13/cobra"
	"gitlink.org.cn/cloudream/jcs-pub/client/sdk/api/v1"

	cortypes "gitlink.org.cn/cloudream/jcs-pub/coordinator/types"
	"gitlink.org.cn/cloudream/jcs-pub/jcsctl/cmd"
)

type MyUserSpace struct {
	api.UserSpaceCreate
}

func init() {
	cmd := cobra.Command{
		Use:   "create",
		Short: "add a new cloud storage",
		Run: func(c *cobra.Command, args []string) {
			ctx := cmd.GetCmdCtx(c)
			create(c, ctx)
		},
	}
	UserSpaceCmd.AddCommand(&cmd)
}

func create(c *cobra.Command, ctx *cmd.CommandContext) {
	var userSpace MyUserSpace

	rl, err := readline.New("> ")
	if err != nil {
		fmt.Printf("初始化命令行失败: %v\n", err)
		return
	}
	defer rl.Close()

	rl.SetPrompt("\033[36m请输入存储服务名称(Name): \033[0m")
	name, err := rl.Readline()
	if err != nil {
		return
	}
	userSpace.Name = name

	storageType, err := promptSelectStorage()
	if err != nil {
		return
	}

	switch storageType {
	case "Local":
		err = userSpace.collectLocalConfig(rl)
	case "OBS":
		err = userSpace.collectObsConfig(rl)
	case "OSS":
		err = userSpace.collectOssConfig(rl)
	case "COS":
		err = userSpace.collectCosConfig(rl)
	case "EFile":
		err = userSpace.collectEfileConfig(rl)
	case "S3":
		err = userSpace.collectS3Config(rl)
	}
	if err != nil {
		return
	}

	err = userSpace.collectShardStore(rl)
	if err != nil {
		return
	}

	err = userSpace.collectWorkingDir(rl)
	if err != nil {
		return
	}

	_, err = ctx.Client.UserSpace().Create(userSpace.UserSpaceCreate)
	if err != nil {
		fmt.Printf("\033[31m保存配置失败: %v\033[0m", err)
		return
	}
	fmt.Println("\033[32m配置保存成功!\033[0m")
}

func promptSelectStorage() (string, error) {
	rl, _ := readline.NewEx(&readline.Config{
		Prompt:          "\033[36m»\033[0m ",
		HistoryFile:     "/tmp/storage_history.txt",
		InterruptPrompt: "^C",
	})
	defer rl.Close()

	fmt.Println("\033[1;36m请选择存储类型(StorageType):\033[0m")
	options := []string{"Local", "OBS", "OSS", "COS", "EFile", "S3"}
	for i, option := range options {
		fmt.Printf("\033[33m%d. %s\033[0m\n", i+1, option)
	}

	for {
		line, err := rl.Readline()
		if err != nil {
			return "", err
		}

		trimmed := strings.TrimSpace(line)
		switch trimmed {
		case "1":
			return "Local", nil
		case "2":
			return "OBS", nil
		case "3":
			return "OSS", nil
		case "4":
			return "COS", nil
		case "5":
			return "EFile", nil
		case "6":
			return "S3", nil
		default:
			fmt.Printf("\033[31m错误: 无效选项 '%s'，请输入序号！\033[0m\n", line)
		}
	}
}

func (userSpace *MyUserSpace) collectLocalConfig(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入StorageName: \033[0m")
	storageName, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Location: \033[0m")
	location, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入RootDir: \033[0m")
	rootDir, err := rl.Readline()
	if err != nil {
		return err
	}

	userSpace.Storage = &cortypes.LocalType{
		Type: "Local",
		Location: cortypes.Location{
			StorageName: storageName,
			Location:    location,
		},
	}
	userSpace.Credential = &cortypes.LocalCred{
		Type:    "Local",
		RootDir: rootDir,
	}
	return nil
}

func (userSpace *MyUserSpace) collectObsConfig(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入Region: \033[0m")
	region, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Endpoint: \033[0m")
	endpoint, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Bucket: \033[0m")
	bucket, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入ProjectID: \033[0m")
	projectID, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入AccessKeyID: \033[0m")
	accessKey, err := rl.Readline()
	if err != nil {
		return err
	}

	secretBytes, err := rl.ReadPassword("\033[36m请输入AccessKeySecret: \033[0m")
	if err != nil {
		return err
	}
	secretKey := string(secretBytes)

	userSpace.Storage = &cortypes.OBSType{
		Type:      "OBS",
		Region:    region,
		Endpoint:  endpoint,
		Bucket:    bucket,
		ProjectID: projectID,
	}
	userSpace.Credential = &cortypes.OBSCred{
		Type: "OBS",
		AK:   accessKey,
		SK:   secretKey,
	}

	for {
		rl.SetPrompt("\033[36m是否支持存储服务间直传文件？(y/n): \033[0m")
		input, err := rl.Readline()
		if err != nil {
			return err
		}

		switch strings.ToLower(strings.TrimSpace(input)) {
		case "y", "yes":
			userSpace.Features = append(userSpace.Features, &cortypes.S2STransferFeature{
				Type: "S2STransfer",
			})
			return nil
		case "n", "no":
			fmt.Println("\033[36m不支持存储服务间直传文件 \033[0m")
			return nil
		default:
			fmt.Println("\033[31m无效输入！请输入 y/n 或 yes/no \033[0m")
		}
	}
}

func (userSpace *MyUserSpace) collectOssConfig(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入Region: \033[0m")
	region, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Endpoint: \033[0m")
	endpoint, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Bucket: \033[0m")
	bucket, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入AccessKeyID: \033[0m")
	accessKey, err := rl.Readline()
	if err != nil {
		return err
	}

	secretBytes, err := rl.ReadPassword("\033[36m请输入AccessKeySecret: \033[0m")
	if err != nil {
		return err
	}
	secretKey := string(secretBytes)

	userSpace.Storage = &cortypes.OSSType{
		Region:   region,
		Endpoint: endpoint,
		Bucket:   bucket,
	}
	userSpace.Credential = &cortypes.OSSCred{
		Type: "OSS",
		AK:   accessKey,
		SK:   secretKey,
	}
	return nil
}

func (userSpace *MyUserSpace) collectCosConfig(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入Region: \033[0m")
	region, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Endpoint: \033[0m")
	endpoint, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Bucket: \033[0m")
	bucket, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入AccessKeyID: \033[0m")
	accessKey, err := rl.Readline()
	if err != nil {
		return err
	}

	secretBytes, err := rl.ReadPassword("\033[36m请输入AccessKeySecret: \033[0m")
	if err != nil {
		return err
	}
	secretKey := string(secretBytes)

	userSpace.Storage = &cortypes.COSType{
		Type:     "COS",
		Region:   region,
		Endpoint: endpoint,
		Bucket:   bucket,
	}
	userSpace.Credential = &cortypes.COSCred{
		Type: "COS",
		AK:   accessKey,
		SK:   secretKey,
	}
	return nil
}

func (userSpace *MyUserSpace) collectEfileConfig(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入ClusterID: \033[0m")
	clusterID, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入TokenURL: \033[0m")
	tokenURL, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入APIURL: \033[0m")
	apiURL, err := rl.Readline()
	if err != nil {
		return err
	}

	tokenExpire := 0
	for {
		rl.SetPrompt("\033[36m请输入TokenExpire: \033[0m")
		valueInt, err := rl.Readline()
		if err != nil {
			return err
		}
		if strings.TrimSpace(valueInt) == "" {
			fmt.Println("\033[31m错误：输入不能为空，请输入正整数\033[0m")
			continue
		}
		num, err := strconv.ParseInt(valueInt, 10, 64)
		if err != nil {
			fmt.Printf("\033[31m错误：'%s' 不是有效整数，请输入正整数\033[0m\n", valueInt)
			continue
		}
		if num <= 0 {
			fmt.Printf("\033[31m错误：%d 不是正整数，请输入大于 0 的整数\033[0m\n", num)
			continue
		}
		tokenExpire = int(num)
		break
	}

	rl.SetPrompt("\033[36m请输入User: \033[0m")
	user, err := rl.Readline()
	if err != nil {
		return err
	}

	passwordBytes, err := rl.ReadPassword("\033[36m请输入Password: \033[0m")
	if err != nil {
		return err
	}
	password := string(passwordBytes)

	rl.SetPrompt("\033[36m请输入OrgID: \033[0m")
	orgID, err := rl.Readline()
	if err != nil {
		return err
	}

	userSpace.Storage = &cortypes.EFileType{
		Type:      "EFile",
		ClusterID: clusterID,
	}
	userSpace.Credential = &cortypes.EFileCred{
		Type:        "EFile",
		TokenURL:    tokenURL,
		APIURL:      apiURL,
		TokenExpire: tokenExpire,
		User:        user,
		Password:    password,
		OrgID:       orgID,
	}

	for {
		rl.SetPrompt("\033[36m是否提供能进行EC计算的接口？(y/n): \033[0m")
		input, err := rl.Readline()
		if err != nil {
			return err
		}

		switch strings.ToLower(strings.TrimSpace(input)) {
		case "y", "yes":
			userSpace.Features = append(userSpace.Features, &cortypes.ECMultiplierFeature{
				Type: "ECMultiplier",
			})
			return nil
		case "n", "no":
			fmt.Println("\033[36m未提供能进行EC计算的接口 \033[0m")
			return nil
		default:
			fmt.Println("\033[31m无效输入！请输入 y/n 或 yes/no \033[0m")
		}
	}
}

func (userSpace *MyUserSpace) collectS3Config(rl *readline.Instance) error {
	var err error
	rl.SetPrompt("\033[36m请输入Region: \033[0m")
	region, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Endpoint: \033[0m")
	endpoint, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入Bucket: \033[0m")
	bucket, err := rl.Readline()
	if err != nil {
		return err
	}

	rl.SetPrompt("\033[36m请输入AccessKeyID: \033[0m")
	accessKey, err := rl.Readline()
	if err != nil {
		return err
	}

	secretBytes, err := rl.ReadPassword("\033[36m请输入AccessKeySecret: \033[0m")
	if err != nil {
		return err
	}
	secretKey := string(secretBytes)

	userSpace.Storage = &cortypes.S3Type{
		Type:     "S3",
		Region:   region,
		Endpoint: endpoint,
		Bucket:   bucket,
	}
	userSpace.Credential = &cortypes.S3Cred{
		Type: "S3",
		AK:   accessKey,
		SK:   secretKey,
	}

	for {
		rl.SetPrompt("\033[36m是否支持分段上传？(y/n): \033[0m")
		input, err := rl.Readline()
		if err != nil {
			return err
		}

		switch strings.ToLower(strings.TrimSpace(input)) {
		case "y", "yes":
			userSpace.Features = append(userSpace.Features, &cortypes.MultipartUploadFeature{
				Type: "MultipartUpload",
			})
			return nil
		case "n", "no":
			fmt.Println("\033[36m不支持分段上传 \033[0m")
			return nil
		default:
			fmt.Println("\033[31m无效输入！请输入 y/n 或 yes/no \033[0m")
		}
	}
}

func (userSpace *MyUserSpace) collectShardStore(rl *readline.Instance) error {
	for {
		rl.SetPrompt("\033[36m是否开启分片存储功能？(y/n): \033[0m")
		input, err := rl.Readline()
		if err != nil {
			return err
		}

		switch strings.ToLower(strings.TrimSpace(input)) {
		case "y", "yes":
			for {
				rl.SetPrompt("\033[36m请输入最大Size: \033[0m")
				sizeInput, err := rl.Readline()
				if err != nil {
					return err
				}
				if strings.TrimSpace(sizeInput) == "" {
					fmt.Println("\033[31m错误：输入不能为空31m错误：输入不能为空，请输入正整数\033[0m")
					continue
				}

				maxSize, err := strconv.ParseInt(sizeInput, 10, 64)
				if err != nil {
					fmt.Printf("\033[31m错误：'%s' 不是有效整数，请输入正整数\033[0m\n", sizeInput)
					continue
				}
				if maxSize <= 0 {
					fmt.Printf("\033[31m错误：%d 不是正整数，请输入大于 0 的整数\033[0m\n", maxSize)
					continue
				}
				userSpace.ShardStore = &cortypes.ShardStoreUserConfig{
					MaxSize: maxSize,
				}
				return nil
			}

		case "n", "no":
			fmt.Println("\033[31m分片存储未启用 \033[0m")
			return nil
		default:
			fmt.Println("\033[31m无效输入！请输入 y/n 或 yes/no \033[0m")
		}
	}
}

func (userSpace *MyUserSpace) collectWorkingDir(rl *readline.Instance) error {
	for {
		rl.SetPrompt("\033[36m默认工作路径(WorkingDir)为jcs，是否修改？(y/n): \033[0m")
		input, err := rl.Readline()
		if err != nil {
			return err
		}

		switch strings.ToLower(strings.TrimSpace(input)) {
		case "y", "yes":
			rl.SetPrompt("\033[36m请输入新的工作路径(WorkingDir): \033[0m")
			newValue, err := rl.Readline()
			if err != nil {
				return err
			}
			if newValue != "" {
				userSpace.WorkingDir = newValue
			}
			return nil
		case "n", "no":
			userSpace.WorkingDir = "jcs"
			return nil
		default:
			fmt.Println("\033[31m无效输入！请输入 y/n 或 yes/no \033[0m")
		}
	}
}