package syncdrive

import (
	"context"
	"fmt"
	"github.com/tickstep/bolt"
	"io/fs"
	"io/ioutil"
	"os"
	"strings"
	"testing"
	"time"
)

func TestPath(t *testing.T) {
	db, err := bolt.Open("D:\\smb\\feny\\goprojects\\dev\\sync_drive\\5b2d7c10-e927-4e72-8f9d-5abb3bb04814\\test.db", 0600, &bolt.Options{Timeout: 5 * time.Second})
	if err != nil {
		return
	}
	defer db.Close()

	// add item
	// Start a writable transaction.
	tx, err := db.Begin(true)
	if err != nil {
		return
	}
	defer tx.Rollback()

	rootBucket, _ := tx.CreateBucketIfNotExists([]byte("/"))
	if e := rootBucket.Put([]byte("test"), []byte("test value")); e != nil {
		return
	}
	_, e := rootBucket.CreateBucketIfNotExists([]byte("test"))
	println(e)

	// Commit the transaction and check for error.
	if err := tx.Commit(); err != nil {
		return
	}
}

func dosomething(ctx context.Context) {
	for {
		select {
		case <-ctx.Done():
			fmt.Println("playing")
			return
		default:
			fmt.Println("I am working!")
			time.Sleep(time.Second)
		}
	}
}

func TestContext(t *testing.T) {
	ctx, cancelFunc := context.WithCancel(context.Background())
	go func() {
		time.Sleep(5 * time.Second)
		cancelFunc()
	}()
	dosomething(ctx)
}

func TestBolt(t *testing.T) {
	localFileDb := NewLocalSyncDb("D:\\smb\\feny\\goprojects\\dev\\sync_drive\\local.db")
	localFileDb.Open()
	defer localFileDb.Close()
	localFileDb.Add(&LocalFileItem{
		FileName:      "dev",
		FileSize:      0,
		FileType:      "folder",
		CreatedAt:     "2022-05-12 10:21:14",
		UpdatedAt:     "2022-05-12 10:21:14",
		FileExtension: ".db",
		Sha1Hash:      "",
		Path:          "D:\\smb\\feny\\goprojects\\dev",
	})
	localFileDb.Add(&LocalFileItem{
		FileName:      "file1.db",
		FileSize:      0,
		FileType:      "file",
		CreatedAt:     "2022-05-12 10:21:14",
		UpdatedAt:     "2022-05-12 10:21:14",
		FileExtension: ".db",
		Sha1Hash:      "",
		Path:          "D:\\smb\\feny\\goprojects\\dev\\file1.db",
	})
	go func(db LocalSyncDb) {
		for i := 1; i <= 10; i++ {
			sb := &strings.Builder{}
			fmt.Fprintf(sb, "D:\\smb\\feny\\goprojects\\dev\\go\\file%d.db", i)
			db.Add(&LocalFileItem{
				FileName:      "file1.db",
				FileSize:      0,
				FileType:      "file",
				CreatedAt:     "2022-05-12 10:21:14",
				UpdatedAt:     "2022-05-12 10:21:14",
				FileExtension: ".db",
				Sha1Hash:      "",
				Path:          sb.String(),
			})
		}
	}(localFileDb)
	time.Sleep(1 * time.Second)
	localFileDb.Add(&LocalFileItem{
		FileName:      "file1.db",
		FileSize:      0,
		FileType:      "file",
		CreatedAt:     "2022-05-12 10:21:14",
		UpdatedAt:     "2022-05-12 10:21:14",
		FileExtension: ".db",
		Sha1Hash:      "",
		Path:          "D:\\smb\\feny\\goprojects\\dev\\file3.db",
	})
	time.Sleep(5 * time.Second)
}

func TestBoltUltraFiles(t *testing.T) {
	localFileDb := NewLocalSyncDb("/Volumes/DataDisk3T/test/local.bolt")
	localFileDb.Open()
	defer localFileDb.Close()

	count := int64(0)
	walkFunc := func(parentDirPath string, infos []fs.FileInfo, err error) error {
		files := LocalFileList{}
		for _, info := range infos {
			if strings.Index(info.Name(), ".") == 0 {
				continue
			}
			count += 1
			file := parentDirPath + "/" + info.Name()
			fmt.Println(count, " - ", file)
			files = append(files, newLocalFileItem(info, file))
		}
		localFileDb.AddFileList(files)
		return nil
	}
	WalkAllFileFunc("/Volumes/Downloads", walkFunc)
	println("\ntotal: ", count)
}

type MyWalkFunc func(parentDirPath string, infos []fs.FileInfo, err error) error

func WalkAllFileFunc(dirPath string, walkFn MyWalkFunc) error {
	info, err := os.Lstat(dirPath)
	if err != nil {
		infos := []os.FileInfo{}
		infos = append(infos, info)
		err = walkFn(dirPath, infos, err)
	} else {
		err = walkAllFileFunc(dirPath, info, walkFn)
	}
	return err
}

func walkAllFileFunc(dirPath string, info os.FileInfo, walkFn MyWalkFunc) error {
	if !info.IsDir() {
		infos := []os.FileInfo{}
		infos = append(infos, info)
		return walkFn(dirPath, infos, nil)
	}

	files, err := ioutil.ReadDir(dirPath)
	if err != nil {
		return walkFn(dirPath, nil, err)
	}
	if len(files) == 0 {
		return nil
	}
	err = walkFn(dirPath, files, err)
	if err != nil {
		return err
	}
	for _, fi := range files {
		if fi.IsDir() {
			err = walkAllFileFunc(dirPath+"/"+fi.Name(), fi, walkFn)
			if err != nil {
				return err
			}
		}
	}
	return nil
}