99 lines
1.8 KiB
Go
99 lines
1.8 KiB
Go
package float
|
|
|
|
import (
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/indra-labs/indra"
|
|
log2 "github.com/indra-labs/indra/pkg/proc/log"
|
|
"github.com/indra-labs/indra/pkg/proc/opts/config"
|
|
"github.com/indra-labs/indra/pkg/proc/opts/meta"
|
|
"github.com/indra-labs/indra/pkg/util/path/path"
|
|
"go.uber.org/atomic"
|
|
)
|
|
|
|
var (
|
|
log = log2.GetLogger(indra.PathBase)
|
|
check = log.E.Chk
|
|
)
|
|
|
|
type Opt struct {
|
|
p path.Path
|
|
m meta.Metadata
|
|
v atomic.Float64
|
|
h []Hook
|
|
}
|
|
|
|
func (o *Opt) Path() (p path.Path) { return o.p }
|
|
|
|
func (o *Opt) SetPath(p path.Path) { o.p = p }
|
|
|
|
var _ config.Option = &Opt{}
|
|
|
|
type Hook func(*Opt) error
|
|
|
|
func New(m meta.Data, h ...Hook) (o *Opt) {
|
|
o = &Opt{m: meta.New(m, meta.Float), h: h}
|
|
_ = o.FromString(m.Default)
|
|
return
|
|
}
|
|
|
|
func (o *Opt) Meta() meta.Metadata { return o.m }
|
|
func (o *Opt) Type() meta.Type { return o.m.Typ }
|
|
func (o *Opt) ToOption() config.Option { return o }
|
|
|
|
func (o *Opt) RunHooks() (e error) {
|
|
for i := range o.h {
|
|
e = o.h[i](o)
|
|
if e != nil {
|
|
return
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func (o *Opt) FromValue(v float64) *Opt {
|
|
o.v.Store(v)
|
|
return o
|
|
}
|
|
|
|
func (o *Opt) FromString(s string) (e error) {
|
|
s = strings.TrimSpace(s)
|
|
var p float64
|
|
p, e = strconv.ParseFloat(s, 64)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
o.v.Store(p)
|
|
e = o.RunHooks()
|
|
return
|
|
}
|
|
|
|
func (o *Opt) String() (s string) {
|
|
return strconv.FormatFloat(o.v.Load(), 'f', -1, 64)
|
|
}
|
|
|
|
func (o *Opt) Expanded() (s string) { return o.String() }
|
|
|
|
func (o *Opt) SetExpanded(s string) {
|
|
err := o.FromString(s)
|
|
log.E.Chk(err)
|
|
}
|
|
|
|
func (o *Opt) Value() (c config.Concrete) {
|
|
c = config.NewConcrete()
|
|
c.Float = func() float64 { return o.v.Load() }
|
|
return
|
|
}
|
|
|
|
func Clamp(o *Opt, min, max float64) func(*Opt) {
|
|
return func(o *Opt) {
|
|
v := o.v.Load()
|
|
if v < min {
|
|
o.v.Store(min)
|
|
} else if v > max {
|
|
o.v.Store(max)
|
|
}
|
|
}
|
|
}
|