add util package

go.mod

@@ -0,0 +1 @@
+module github.com/allanwei/gcwebapis-util

util.go

@@ -0,0 +1,93 @@
+package util
+
+import (
+	"fmt"
+	"net/url"
+	"time"
+)
+
+//Decoder ...
+func Decoder(Str string) (string, error) {
+	u, err := url.QueryUnescape(Str)
+	if err != nil {
+		return "", err
+	}
+	return u, nil
+
+}
+
+//TimeSpan ....
+type TimeSpan struct {
+	H int
+	M int
+	S int
+}
+
+//ParseTimeSpanWithMinutes ....
+func ParseTimeSpanWithMinutes(i int) TimeSpan {
+	return TimeSpan{H: 0, M: i, S: 0}
+}
+
+//GetHoursFromMin ....
+func (d TimeSpan) GetHoursFromMin() (float64, error) {
+	str := fmt.Sprintf("%dm", d.M)
+	h, err := time.ParseDuration(str)
+	if err != nil {
+		return 0, err
+	}
+	return h.Hours(), nil
+}
+
+//GetTimes ....
+func GetTimes() {
+	h, err := time.ParseDuration("360m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("Start: ?", h.Hours())
+	h, err = time.ParseDuration("840m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("End: ?", h.Hours())
+	h, err = time.ParseDuration("840m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("Start: ?", h.Hours())
+	h, err = time.ParseDuration("1320m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("End: ?", h.Hours())
+	h, err = time.ParseDuration("1320m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("Start: ?", h.Hours())
+	h, err = time.ParseDuration("360m")
+	if err != nil {
+		fmt.Println(err)
+
+	}
+	fmt.Println("End: ?", h.Hours())
+
+}
+
+//Strings ...
+func Strings(input []string) []string {
+	u := make([]string, 0)
+	m := make(map[string]bool)
+	for _, val := range input {
+		if _, ok := m[val]; !ok {
+			m[val] = true
+			u = append(u, val)
+		}
+	}
+	return u
+}