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package hotline
import (
"encoding/binary"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
func downcaseFileExtension(filename string) string {
splitStr := strings.Split(filename, ".")
ext := strings.ToLower(
splitStr[len(splitStr)-1],
)
return ext
}
func fileTypeFromFilename(fn string) fileType {
ft, ok := fileTypes[downcaseFileExtension(fn)]
if ok {
return ft
}
return defaultFileType
}
func getFileNameList(filePath string) (fields []Field, err error) {
files, err := ioutil.ReadDir(filePath)
if err != nil {
return fields, nil
}
for _, file := range files {
var fileType []byte
var fnwi FileNameWithInfo
fileCreator := make([]byte, 4)
if !file.IsDir() {
fileType = []byte(fileTypeFromFilename(file.Name()).TypeCode)
fileCreator = []byte(fileTypeFromFilename(file.Name()).CreatorCode)
binary.BigEndian.PutUint32(fnwi.FileSize[:], uint32(file.Size()))
copy(fnwi.Type[:], fileType[:])
copy(fnwi.Creator[:], fileCreator[:])
} else {
fileType = []byte("fldr")
dir, err := ioutil.ReadDir(filePath + "/" + file.Name())
if err != nil {
return fields, err
}
binary.BigEndian.PutUint32(fnwi.FileSize[:], uint32(len(dir)))
copy(fnwi.Type[:], fileType[:])
copy(fnwi.Creator[:], fileCreator[:])
}
nameSize := make([]byte, 2)
binary.BigEndian.PutUint16(nameSize, uint16(len(file.Name())))
copy(fnwi.NameSize[:], nameSize[:])
fnwi.name = []byte(file.Name())
b, err := fnwi.MarshalBinary()
if err != nil {
return nil, err
}
fields = append(fields, NewField(fieldFileNameWithInfo, b))
}
return fields, nil
}
func CalcTotalSize(filePath string) ([]byte, error) {
var totalSize uint32
err := filepath.Walk(filePath, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
totalSize += uint32(info.Size())
return nil
})
if err != nil {
return nil, err
}
bs := make([]byte, 4)
binary.BigEndian.PutUint32(bs, totalSize)
return bs, nil
}
func CalcItemCount(filePath string) ([]byte, error) {
var itemcount uint16
err := filepath.Walk(filePath, func(path string, info os.FileInfo, err error) error {
itemcount += 1
if err != nil {
return err
}
return nil
})
if err != nil {
return nil, err
}
bs := make([]byte, 2)
binary.BigEndian.PutUint16(bs, itemcount-1)
return bs, nil
}
func EncodeFilePath(filePath string) []byte {
pathSections := strings.Split(filePath, "/")
pathItemCount := make([]byte, 2)
binary.BigEndian.PutUint16(pathItemCount, uint16(len(pathSections)))
bytes := pathItemCount
for _, section := range pathSections {
bytes = append(bytes, []byte{0, 0}...)
pathStr := []byte(section)
bytes = append(bytes, byte(len(pathStr)))
bytes = append(bytes, pathStr...)
}
return bytes
}
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