Moving utils.go to utils package

utils/utils.go

@@ -0,0 +1,138 @@
+package utils
+
+import (
+	"io/ioutil"
+	"strconv"
+	"strings"
+	"syscall"
+	"unsafe"
+)
+
+type winsize struct {
+	Row    uint16
+	Col    uint16
+	Xpixel uint16
+	Ypixel uint16
+}
+
+func GetWidth() *winsize {
+	ws := &winsize{}
+	retCode, _, errno := syscall.Syscall(syscall.SYS_IOCTL,
+		uintptr(syscall.Stdin),
+		uintptr(syscall.TIOCGWINSZ),
+		uintptr(unsafe.Pointer(ws)))
+
+	if int(retCode) == -1 {
+		panic(errno)
+	}
+	return ws
+}
+
+func GetFontWidth() (float32, float32) {
+	g := GetWidth()
+	fw := (float32(g.Xpixel) / float32(g.Col))
+	fh := (float32(g.Ypixel) / float32(g.Row))
+	return fw, fh
+}
+
+func StrTime(e float64) string {
+	a := int(e)
+	var min, seconds string
+	if a/60 < 10 {
+		min = "0"
+		min += strconv.Itoa(a / 60)
+	} else {
+		min = strconv.Itoa(a / 60)
+	}
+	if a%60 < 10 {
+		seconds = "0"
+		seconds += strconv.Itoa(a % 60)
+	} else {
+		seconds = strconv.Itoa(a % 60)
+	}
+	return min + ":" + seconds
+}
+
+func InsertAt(inputString, stringTobeInserted string, index int) string {
+	s := inputString[:index] + stringTobeInserted + inputString[index:]
+	return s
+}
+
+func GetText(width, percentage float64, eta string) string {
+	q := "[#000000:#ffffff:b]"
+	var a string
+	a += strings.Repeat(" ", int(width)-len(eta))
+	a = InsertAt(a, eta, int(width/2)-10)
+	a = InsertAt(a, "[-:-:-]", int(width*percentage/100))
+	q += a
+	return q
+}
+
+func ConvertToArray(ArtistTree map[string]map[string]map[string]string) []string {
+	var p []string
+	for k2, v := range ArtistTree {
+		p = append(p, k2)
+		for k1, v1 := range v {
+			p = append(p, k1)
+			for k := range v1 {
+				p = append(p, k)
+			}
+		}
+	}
+	return p
+}
+
+func FormatString(a interface{}) string {
+	if a == "play" {
+		return "Playing"
+	} else if a == "1" {
+		return "On"
+	} else if a == "0" {
+		return "Off"
+	} else if a == "stop" {
+		return "Stopped"
+	} else {
+		return "Paused"
+	}
+}
+
+func Copy(sourceImage, destinationImage string) error {
+	source, err := ioutil.ReadFile(sourceImage)
+	if err != nil {
+		return err
+	} else {
+		err = ioutil.WriteFile(destinationImage, source, 0644)
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+}
+
+func Join(stringSlice []string) string {
+	var _s string = stringSlice[0]
+	for i := 1; i < len(stringSlice); i++ {
+		if _s != "" {
+			_s += ("/" + stringSlice[i])
+		}
+	}
+	return _s
+}
+
+func GetFormattedString(s string, width int) string {
+	if len(s) < width {
+		s += strings.Repeat(" ", (width - len(s)))
+	} else {
+		s = s[:(width - 2)]
+		s += "  "
+	}
+	return s
+}
+
+func CheckDirectoryFmt(path string) string {
+	if strings.HasSuffix(path, "/") {
+		return path
+	} else {
+		return path + "/"
+	}
+}