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config.go
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config.go
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package window
import (
"strings"
"time"
"github.com/goto/optimus/internal/errors"
"github.com/goto/optimus/internal/lib/duration"
"github.com/goto/optimus/internal/models"
)
const NewWindowVersion = 3
const (
Incremental Type = "incremental"
Preset Type = "preset"
Custom Type = "custom"
)
type Type string
type SimpleConfig struct {
Size string
ShiftBy string
Location string
TruncateTo string // TODO: remove later if unused
}
type Config struct {
windowType Type
Preset string
// kept for backward compatibility, will be removed later
Window models.Window
simple SimpleConfig
}
// Following functions are for backward compatibility
func (c Config) GetSize() string { // nolint: gocritic
if c.Window == nil {
return c.simple.Size
}
return c.Window.GetSize()
}
func (c Config) GetOffset() string { // nolint: gocritic
if c.Window == nil {
return c.simple.ShiftBy
}
return c.Window.GetOffset()
}
func (c Config) GetTruncateTo() string { // nolint: gocritic
if c.Window == nil {
return c.simple.TruncateTo
}
return c.Window.GetTruncateTo()
}
func (c Config) GetVersion() int {
if c.Window == nil {
return NewWindowVersion
}
return c.Window.GetVersion()
}
func (c Config) GetSimpleConfig() SimpleConfig {
return c.simple
}
func NewPresetConfig(preset string) (Config, error) {
presetName := strings.ToLower(strings.TrimPrefix(preset, "@"))
if preset == "" {
return Config{}, errors.InvalidArgument("Window", "invalid window config preset")
}
return Config{
windowType: Preset,
Preset: presetName,
}, nil
}
func NewCustomConfig(w models.Window) Config {
return Config{
windowType: Custom,
Window: w,
}
}
func NewSimpleConfig(size, shiftBy, location, truncateTo string) (SimpleConfig, error) {
validationErr := errors.NewMultiError("error in window config")
err := duration.Validate(size)
validationErr.Append(err)
if strings.HasPrefix(size, "-") {
validationErr.Append(errNegativeSize)
}
err = duration.Validate(shiftBy)
validationErr.Append(err)
_, err = time.LoadLocation(location)
validationErr.Append(err)
if truncateTo != "" {
_, err = duration.UnitFrom(truncateTo)
validationErr.Append(err)
}
if len(validationErr.Errors) > 0 {
return SimpleConfig{}, validationErr.ToErr()
}
return SimpleConfig{
Size: size,
ShiftBy: shiftBy,
Location: location,
TruncateTo: truncateTo,
}, nil
}
func NewConfig(size, shiftBy, location, truncateTo string) (Config, error) {
simpleConfig, err := NewSimpleConfig(size, shiftBy, location, truncateTo)
if err != nil {
return Config{}, err
}
return Config{
windowType: Custom,
simple: simpleConfig,
}, nil
}
func NewCustomConfigWithTimezone(c SimpleConfig) Config {
return Config{
windowType: Custom,
simple: c,
}
}
func NewIncrementalConfig() Config {
return Config{windowType: Incremental}
}
func (c Config) Type() Type {
return c.windowType
}