40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
package model
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import "sync"
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// Experiments are optional functionality that can be enabled/disabled by an application either completely or individually.
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// examples of experiments include File Sharing, Profile Images and Groups.
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type Experiments struct {
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enabled bool
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experiments map[string]bool
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lock sync.Mutex
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}
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// InitExperiments encapsulates a set of experiments separate from their storage in GlobalSettings.
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func InitExperiments(enabled bool, experiments map[string]bool) Experiments {
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return Experiments{
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enabled: enabled,
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experiments: experiments,
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}
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}
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// IsEnabled is a convenience function that takes in an experiment and returns true if it is enabled. Experiments
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// are only enabled if both global experiments are turned on and if the specific experiment is also turned on.
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// The one exception to this is experiments that have been promoted to default functionality which may be turned on
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// even if experiments turned off globally. These experiments are defined by DefaultEnabledFunctionality.
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func (e *Experiments) IsEnabled(experiment string) bool {
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if !e.enabled {
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// todo handle default-enabled functionality
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return false
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}
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// go will sometimes panic if we do not lock this read-only map...
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e.lock.Lock()
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defer e.lock.Unlock()
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enabled, exists := e.experiments[experiment]
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if !exists {
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return false
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}
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return enabled
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}
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