package repo

import (
	"errors"
	"io/ioutil"
	"path"
	"strings"

	"code.gitea.io/gitea/models"
	"code.gitea.io/gitea/modules/base"
	"code.gitea.io/gitea/modules/context"
	"code.gitea.io/gitea/modules/log"
	"code.gitea.io/gitea/modules/setting"
)

const (
	tplDirIndex base.TplName = "repo/datasets/dirs/index"
)

type FileInfo struct {
	FileName string
	ModTime  string
	IsDir    bool
	Size     int64
	ParenDir string
	UUID     string
}

func DirIndex(ctx *context.Context) {
	uuid := ctx.Params("uuid")
	parentDir := ctx.Query("parentDir")
	dirArray := strings.Split(parentDir, "/")

	if parentDir == "" {
		attachment, err := models.GetAttachmentByUUID(uuid)
		if err != nil {
			ctx.ServerError("GetDatasetAttachments", err)
			return
		}

		if !strings.HasSuffix(attachment.Name, ".zip") {
			log.Error("The file is not zip file, can not query the dir")
			ctx.ServerError("The file is not zip file, can not query the dir", errors.New("The file is not zip file, can not query the dir"))
			return
		} else if attachment.DecompressState != models.DecompressStateDone {
			log.Error("The file has not been decompressed completely now")
			ctx.ServerError("The file has not been decompressed completely now", errors.New("The file has not been decompressed completely now"))
			return
		}

		// ctx.Data["OriginName"] = attachment.Name
	}

	files, err := ioutil.ReadDir(setting.Attachment.Minio.RealPath + setting.Attachment.Minio.Bucket + "/" + setting.Attachment.Minio.BasePath +
		path.Join(uuid[0:1], uuid[1:2], uuid+uuid) + "/" + parentDir)
	if err != nil {
		log.Error("ReadDir failed:", err.Error())
		ctx.ServerError("ReadDir failed:", err)
		return
	}

	i := 1
	var fileInfos []FileInfo
	for _, file := range files {
		if i > 100 {
			break
		}

		log.Info(file.Name())

		var tmp string
		if parentDir == "" {
			tmp = file.Name()
		} else {
			tmp = parentDir + "/" + file.Name()
		}

		fileInfos = append(fileInfos, FileInfo{
			FileName: file.Name(),
			ModTime:  file.ModTime().Format("2006-01-02 15:04:05"),
			IsDir:    file.IsDir(),
			Size:     file.Size(),
			ParenDir: tmp,
			UUID:     uuid,
		})
		i++
	}

	ctx.Data["Path"] = dirArray
	ctx.Data["Dirs"] = fileInfos
	ctx.Data["PageIsDataset"] = true

	ctx.HTML(200, tplDirIndex)
}