refactor(deps):将一些工具函数用工具库替换。

tools/time.go

@@ -0,0 +1,16 @@
+package tools
+
+import (
+	"time"
+)
+
+func DifferenceInMonth(t1, t2 time.Time) int {
+	var differYear, differMonth int
+	differYear = t1.Year() - t2.Year()
+	differMonth = int(t1.Month() - t2.Month())
+	return differYear*12 + differMonth
+}
+
+func IsNextMonth(origin, t time.Time) bool {
+	return DifferenceInMonth(t, origin) == 1
+}

tools/utils.go

@@ -0,0 +1,23 @@
+package tools
+
+import (
+	"strings"
+
+	"github.com/mozillazg/go-pinyin"
+	"github.com/samber/lo"
+)
+
+func ContainsInsensitive(element string, slice []string) bool {
+	lowercasedElement := strings.TrimSpace(strings.ToLower(element))
+	return lo.Contains(slice, lowercasedElement)
+}
+
+func PinyinAbbr(source string) string {
+	abbr := pinyin.Pinyin(source, pinyin.NewArgs())
+	var abbrCollect = make([]string, 0)
+	for _, a := range abbr {
+		abbrCollect = append(abbrCollect, a[0][0:1])
+	}
+	finalAbbr := strings.Join(abbrCollect, "")
+	return finalAbbr
+}

tools/verify_code.go

@@ -0,0 +1,36 @@
+package tools
+
+import (
+	"math/rand"
+	"time"
+	"unsafe"
+)
+
+const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
+
+var src = rand.NewSource(time.Now().UnixNano())
+
+const (
+	// 6 bits to represent a letter index
+	letterIdBits = 6
+	// All 1-bits as many as letterIdBits
+	letterIdMask = 1<<letterIdBits - 1
+	letterIdMax  = 63 / letterIdBits
+)
+
+func RandStr(n int) string {
+	b := make([]byte, n)
+	// A rand.Int63() generates 63 random bits, enough for letterIdMax letters!
+	for i, cache, remain := n-1, src.Int63(), letterIdMax; i >= 0; {
+		if remain == 0 {
+			cache, remain = src.Int63(), letterIdMax
+		}
+		if idx := int(cache & letterIdMask); idx < len(letters) {
+			b[i] = letters[idx]
+			i--
+		}
+		cache >>= letterIdBits
+		remain--
+	}
+	return *(*string)(unsafe.Pointer(&b))
+}