mirror of
https://github.com/EchoVault/SugarDB.git
synced 2025-10-04 23:52:42 +08:00
99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
// Copyright 2024 Kelvin Clement Mwinuka
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sorted_set
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import (
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"errors"
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"slices"
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"strings"
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)
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func validateUpdatePolicy(updatePolicy interface{}) (string, error) {
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if updatePolicy == nil {
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return "", nil
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}
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err := errors.New("update policy must be a string of Value NX or XX")
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policy, ok := updatePolicy.(string)
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if !ok {
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return "", err
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}
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if !slices.Contains([]string{"nx", "xx"}, strings.ToLower(policy)) {
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return "", err
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}
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return policy, nil
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}
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func validateComparison(comparison interface{}) (string, error) {
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if comparison == nil {
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return "", nil
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}
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err := errors.New("comparison condition must be a string of Value LT or GT")
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comp, ok := comparison.(string)
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if !ok {
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return "", err
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}
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if !slices.Contains([]string{"lt", "gt"}, strings.ToLower(comp)) {
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return "", err
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}
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return comp, nil
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}
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func validateChanged(changed interface{}) (string, error) {
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if changed == nil {
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return "", nil
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}
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err := errors.New("changed condition should be a string of Value CH")
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ch, ok := changed.(string)
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if !ok {
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return "", err
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}
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if !strings.EqualFold(ch, "ch") {
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return "", err
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}
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return ch, nil
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}
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func validateIncr(incr interface{}) (string, error) {
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if incr == nil {
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return "", nil
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}
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err := errors.New("incr condition should be a string of Value INCR")
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i, ok := incr.(string)
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if !ok {
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return "", err
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}
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if !strings.EqualFold(i, "incr") {
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return "", err
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}
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return i, nil
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}
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func compareScores(old Score, new Score, comp string) Score {
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switch strings.ToLower(comp) {
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default:
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return new
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case "lt":
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if new < old {
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return new
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}
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return old
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case "gt":
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if new > old {
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return new
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}
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return old
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}
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}
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