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feature_flag.go
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feature_flag.go
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package main
// FeatureFlag - feature flag
type FeatureFlag struct {
// Name - name of the feature flag
Name string
// Description - description of the feature flag
Description string
// Enabled - whether the feature flag is enabled
Enabled bool
}
// FeatureFlagManager - feature flag manager
type FeatureFlagManager struct {
// FeatureFlags - list of feature flags
FeatureFlags []FeatureFlag
}
// NewFeatureFlagManager - create a new feature flag manager
func NewFeatureFlagManager() *FeatureFlagManager {
return &FeatureFlagManager{
FeatureFlags: []FeatureFlag{},
}
}
// Add - add a feature flag to the manager
func (ffm *FeatureFlagManager) Add(name string, description string, enabled bool) {
ffm.FeatureFlags = append(ffm.FeatureFlags, FeatureFlag{
Name: name,
Description: description,
Enabled: enabled,
})
}
// Remove - remove a feature flag from the manager
func (ffm *FeatureFlagManager) Remove(name string) {
for i, featureFlag := range ffm.FeatureFlags {
if featureFlag.Name == name {
ffm.FeatureFlags = append(ffm.FeatureFlags[:i], ffm.FeatureFlags[i+1:]...)
}
}
}
// Get
func (ffm *FeatureFlagManager) Get(name string) *FeatureFlag {
for _, featureFlag := range ffm.FeatureFlags {
if featureFlag.Name == name {
return &featureFlag
}
}
return nil
}
// GetFeatureFlags - get all feature flags
func (ffm *FeatureFlagManager) GetFeatureFlags() []FeatureFlag {
return ffm.FeatureFlags
}
// IsEnabled - check if a feature flag is enabled
func (ffm *FeatureFlagManager) IsEnabled(name string) bool {
featureFlag := ffm.Get(name)
if featureFlag != nil {
return featureFlag.Enabled
}
return false
}
// Enable
func (ffm *FeatureFlagManager) Enable(name string) {
featureFlag := ffm.Get(name)
if featureFlag != nil {
featureFlag.Enabled = true
}
}
// Disable
func (ffm *FeatureFlagManager) Disable(name string) {
featureFlag := ffm.Get(name)
if featureFlag != nil {
featureFlag.Enabled = false
}
}