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112 lines
2.2 KiB
112 lines
2.2 KiB
package v
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import (
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"errors"
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"sorbet/pkg/is"
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"strings"
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)
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// Validatable 验证功能接口
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type Validatable interface {
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Validate() error
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}
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// Checker 功能验证函数签名
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type Checker func() error
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// Validate 实现 Validatable 接口
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func (c Checker) Validate() error {
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return c()
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}
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// Wrap 将值和值的验证函数包装成验证器
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func Wrap(value any, check func(any) error) Checker {
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return func() error {
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return check(value)
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}
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}
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// Every 每一项都要验证通过
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func Every(validators ...Validatable) Checker {
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return func() error {
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for _, validator := range validators {
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if err := validator.Validate(); err != nil {
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return err
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}
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}
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return nil
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}
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}
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// Some 任意一项验证通过即可
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func Some(validators ...Validatable) Checker {
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return func() error {
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errs := &Errors{}
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var hasOk bool
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for _, validator := range validators {
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err := validator.Validate()
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if err != nil {
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errs.Add(err)
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} else {
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hasOk = true
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}
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}
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if hasOk || errs.IsEmpty() {
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return nil
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}
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buf := strings.Builder{}
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buf.WriteString("一下错误至少满足一项：\n")
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for _, line := range strings.Split(errs.Error(), "\n") {
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buf.WriteString(" " + line + "\n")
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}
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return errors.New(strings.TrimSpace(buf.String()))
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}
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}
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// Validate 执行多个验证器
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func Validate(validations ...Validatable) error {
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var errs Errors
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for _, validation := range validations {
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if validation == nil {
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continue
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}
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if err := validation.Validate(); err != nil {
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errs.Add(err)
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}
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}
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if errs.IsEmpty() {
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return nil
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}
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return &errs
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}
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// IndexBy 分组验证，只要其中一组验证通过就返回
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func IndexBy(index *int, values [][]any, options ...ErrorOption) Checker {
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return func() error {
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for i, items := range values {
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count := 0
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for _, item := range items {
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if is.Empty(item) {
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break
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}
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count++
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}
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if count > 0 && count == len(items) {
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*index = i
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return nil
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}
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}
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return NewError("index_by", options...)
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}
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}
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// Map 通过 map 构建值验证器
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func Map(data map[string]any) func(name, label string) *Valuer {
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return func(name, label string) *Valuer {
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if val, ok := data[name]; ok {
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return Value(val, name, label)
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} else {
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return Value(nil, name, label)
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}
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}
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}
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