feat: reastructure and create commands

internal/ask/number.go

@@ -0,0 +1,44 @@
+package ask
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func Int(query string, min, max int) int {
+	return raw(query, '\n', func(s string) (v int, msg string) {
+		v, err := strconv.Atoi(s)
+		if err != nil {
+			msg = "please enter a number"
+			return v, msg
+		}
+		if min >= 0 && v < min {
+			msg = fmt.Sprintf("your number must be bigger than %d", min)
+			return v, msg
+		}
+		if max >= 0 && v > max {
+			msg = fmt.Sprintf("your number must be smaller than %d", max)
+			return v, msg
+		}
+		return v, msg
+	})
+}
+
+func Float64(query string, min, max float64) float64 {
+	return raw(query, '\n', func(s string) (v float64, msg string) {
+		v, err := strconv.ParseFloat(s, 64)
+		if err != nil {
+			msg = "please enter a number"
+			return v, msg
+		}
+		if min >= 0 && v < min {
+			msg = fmt.Sprintf("your number must be bigger than %g", min)
+			return v, msg
+		}
+		if max >= 0 && v > max {
+			msg = fmt.Sprintf("your number must be smaller than %g", max)
+			return v, msg
+		}
+		return v, msg
+	})
+}