validate

var ChainValidator validator.Func = func(fl validator.FieldLevel) bool {
	chain := fl.Field().Int()
	return chain >= 0 && chain <= int64(persist.MaxChainValue)
}

var CreatedCollectionsValidator validator.Func = func(fl validator.FieldLevel) bool {
	if s, ok := fl.Field().Interface().([]*model.CreateCollectionInGalleryInput); ok {
		return !slices.ContainsFunc(s, func(l *model.CreateCollectionInGalleryInput) bool {
			return l.GivenID == ""
		})
	}
	return true
}

var DefaultValidator = WithCustomValidators()

var EthValidator validator.Func = func(fl validator.FieldLevel) bool {
	addr := fl.Field().String()
	if addr == "" {
		return true
	}
	return len(addr) == 42 && strings.HasPrefix(addr, "0x")
}

var HTTPValidator validator.Func = func(fl validator.FieldLevel) bool {
	s := fl.Field().String()

	if s == "" {
		return true
	}

	_, err := url.ParseRequestURI(s)
	if err != nil {
		return false
	}

	u, err := url.Parse(s)
	if err != nil || u.Scheme == "" || u.Host == "" {
		return false
	}

	return true
}

var IsOptInRole validator.Func = func(fl validator.FieldLevel) bool {
	role := persist.Role(fl.Field().String())
	return role == persist.RoleBetaTester
}

var IsValidPersona validator.Func = func(fl validator.FieldLevel) bool {
	persona := persist.Persona(fl.Field().String())
	return persona == persist.PersonaNone ||
		persona == persist.PersonaCollector ||
		persona == persist.PersonaCreator ||
		persona == persist.PersonaBoth
}

var IsValidRole validator.Func = func(fl validator.FieldLevel) bool {
	role := persist.Role(fl.Field().String())
	return role == persist.RoleAdmin || role == persist.RoleBetaTester
}

var NonceValidator validator.Func = func(fl validator.FieldLevel) bool {
	nonce := fl.Field().String()
	if nonce == "" {
		return true
	}
	return len(nonce) >= 10 && len(nonce) <= 150
}

var SanitizationPolicy = bluemonday.UGCPolicy()

var SignatureValidator validator.Func = func(fl validator.FieldLevel) bool {
	sig := fl.Field().String()
	if sig == "" {
		return true
	}
	return len(sig) >= 80 && len(sig) <= 200
}

var SortedAscValidator validator.Func = func(fl validator.FieldLevel) bool {
	if s, ok := fl.Field().Interface().([]int); ok {
		return sort.IntsAreSorted(s)
	}
	return false
}

var UsernameValidator validator.Func = func(fl validator.FieldLevel) bool {
	s := fl.Field().String()
	if s == "" {
		return true
	}
	if _, ok := bannedUsernames[s]; ok {
		return false
	}
	return len(s) >= 2 && len(s) <= 50 &&
		alphanumericUnderscoresPeriodsRegex.MatchString(s) &&
		!consecutivePeriodsOrUnderscores(s)
}