40 lines
808 B
Go
40 lines
808 B
Go
package identity
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import (
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"crypto/rand"
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"fmt"
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"math/big"
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"strings"
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)
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func GenerateNumber(prefix string) string {
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n1 := randInt(100, 999)
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n2 := randInt(100, 999)
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n3 := randInt(1000, 9999)
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return fmt.Sprintf("%s %d %d %d", prefix, n1, n2, n3)
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}
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func randInt(min, max int) int {
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n, _ := rand.Int(rand.Reader, big.NewInt(int64(max-min+1)))
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return min + int(n.Int64())
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}
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func NormalizeNumber(s string) string {
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s = strings.TrimSpace(s)
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parts := strings.Fields(s)
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if len(parts) == 4 && strings.HasPrefix(parts[0], "+") {
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return fmt.Sprintf("%s %s %s %s", parts[0], parts[1], parts[2], parts[3])
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}
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return s
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}
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func ValidateNumber(s string) bool {
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parts := strings.Fields(s)
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if len(parts) != 4 {
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return false
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}
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if len(parts[0]) < 2 || parts[0][0] != '+' {
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return false
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}
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return true
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}
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