barcodes/validation/validate.go

package validation

import "fmt"

func Validate(input string, format string) bool {
	rule, exists := formatRules[format]
	if !exists {
		fmt.Printf("Error: No rule found for format '%s'\n", format)
		return false
	}

	if uint64(len(input)) < rule.minLength || uint64(len(input)) > rule.maxLength {
		fmt.Printf("Validation Error: Length must be between %d and %d\n", rule.minLength, rule.maxLength)
		return false
	}

	if !rule.charset.MatchString(input) {
		fmt.Println("Validation Error: Contains illegal characters")
		return false
	}

	if uint64(len(input))%uint64(rule.divisible) != 0 {
		fmt.Printf("Validation Error: Length must be a multiple of %d", rule.divisible)
		return false
	}

	fmt.Printf("Validation passed for barcode type %s\n", format)
	return true
}