feat: reto mouredev#30 - go

Retos/Reto #30 - EL TECLADO T9 [Media]/go/qwik-zgheib.go

@@ -0,0 +1,102 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+type T9Translator interface {
+	Translate(input string) string
+}
+
+type BasicT9Translator struct {
+	t9Map map[string]string
+}
+
+func NewBasicT9Translator() *BasicT9Translator {
+	return &BasicT9Translator{
+		t9Map: map[string]string{
+			"2": "A", "22": "B", "222": "C",
+			"3": "D", "33": "E", "333": "F",
+			"4": "G", "44": "H", "444": "I",
+			"5": "J", "55": "K", "555": "L",
+			"6": "M", "66": "N", "666": "O",
+			"7": "P", "77": "Q", "777": "R", "7777": "S",
+			"8": "T", "88": "U", "888": "V",
+			"9": "W", "99": "X", "999": "Y", "9999": "Z",
+		},
+	}
+}
+
+func (t *BasicT9Translator) Translate(input string) string {
+	blocks := strings.Split(input, "-")
+	var result strings.Builder
+	for _, block := range blocks {
+		if char, exists := t.t9Map[block]; exists {
+			result.WriteString(char)
+		} else {
+			result.WriteString("?")
+		}
+	}
+	return result.String()
+}
+
+type Validator interface {
+	Validate(input string) error
+}
+
+type BasicValidator struct{}
+
+func (v *BasicValidator) Validate(input string) error {
+	blocks := strings.Split(input, "-")
+	for _, block := range blocks {
+		if len(block) == 0 {
+			return fmt.Errorf("empty block found")
+		}
+		char := block[0]
+		for i := 1; i < len(block); i++ {
+			if block[i] != char {
+				return fmt.Errorf("block '%s' contains different numbers", block)
+			}
+		}
+	}
+	return nil
+}
+
+type T9Service struct {
+	translator T9Translator
+	validator  Validator
+}
+
+func NewT9Service(translator T9Translator, validator Validator) *T9Service {
+	return &T9Service{translator: translator, validator: validator}
+}
+
+func (s *T9Service) Process(input string) (string, error) {
+	if err := s.validator.Validate(input); err != nil {
+		return "", err
+	}
+	return s.translator.Translate(input), nil
+}
+
+func main() {
+	translator := NewBasicT9Translator()
+	validator := &BasicValidator{}
+	service := NewT9Service(translator, validator)
+
+	input := "6-666-88-777-33-3-33-888"
+	output, err := service.Process(input)
+	if err != nil {
+		fmt.Println("err:", err)
+		return
+	}
+	fmt.Println("output:", output)
+
+	anotherInput := "77-9-444-55"
+	anotherOutput, err := service.Process(anotherInput)
+	if err != nil {
+		fmt.Println("err:", err)
+		return
+	}
+	fmt.Println("another output:", anotherOutput)
+}