cosmos-sdk/client/v2/autocli/flag/enum.go
2024-06-19 14:53:13 +00:00

75 lines
1.8 KiB
Go

package flag
import (
"context"
"fmt"
"strings"
"google.golang.org/protobuf/reflect/protoreflect"
"cosmossdk.io/client/v2/internal/strcase"
)
type enumType struct {
enum protoreflect.EnumDescriptor
}
func (b enumType) NewValue(*context.Context, *Builder) Value {
val := &enumValue{
enum: b.enum,
valMap: map[string]protoreflect.EnumValueDescriptor{},
}
n := b.enum.Values().Len()
for i := 0; i < n; i++ {
valDesc := b.enum.Values().Get(i)
val.valMap[enumValueName(b.enum, valDesc)] = valDesc
}
return val
}
func (b enumType) DefaultValue() string {
defValue := ""
if def := b.enum.Values().ByNumber(0); def != nil {
defValue = enumValueName(b.enum, def)
}
return defValue
}
type enumValue struct {
enum protoreflect.EnumDescriptor
value protoreflect.EnumNumber
valMap map[string]protoreflect.EnumValueDescriptor
}
func (e enumValue) Get(protoreflect.Value) (protoreflect.Value, error) {
return protoreflect.ValueOfEnum(e.value), nil
}
func enumValueName(enum protoreflect.EnumDescriptor, enumValue protoreflect.EnumValueDescriptor) string {
name := string(enumValue.Name())
name = strings.TrimPrefix(name, strcase.ToScreamingSnake(string(enum.Name()))+"_")
return strcase.ToKebab(name)
}
func (e enumValue) String() string {
return enumValueName(e.enum, e.enum.Values().ByNumber(e.value))
}
func (e *enumValue) Set(s string) error {
valDesc, ok := e.valMap[s]
if !ok {
return fmt.Errorf("%s is not a valid value for enum %s", s, e.enum.FullName())
}
e.value = valDesc.Number()
return nil
}
func (e enumValue) Type() string {
var vals []string
n := e.enum.Values().Len()
for i := 0; i < n; i++ {
vals = append(vals, enumValueName(e.enum, e.enum.Values().Get(i)))
}
return fmt.Sprintf("%s (%s)", e.enum.Name(), strings.Join(vals, " | "))
}