stat

type DiskUsage struct {
	DiskUsagePerMount []*DiskUsagePerMount `json:"DiskUsagePerMount"`
}

type DiskUsagePerMount struct {
	FileSystem  string  `json:"FileSystem"`
	MountedOn   string  `json:"MountedOn"`
	Used        string  `json:"Used"`
	Available   string  `json:"Available"`
	UsedPercent float64 `json:"UsedPercent"`
}

type LoadAverage struct {
	LoadAvg1       float64 `json:"LoadAvg1"`
	LoadAvg5       float64 `json:"LoadAvg5"`
	LoadAvg15      float64 `json:"LoadAvg15"`
	RunningThreads float64 `json:"RunningThreads"`
	TotalThreads   float64 `json:"TotalThreads"`
}

type LoggingInterval struct {
	HeartBeat     *uint `json:"heartbeat,omitempty"`
	SystemMetrics *uint `json:"system_metrics,omitempty"`
}

type MeasurementType string

type MemoryUsage struct {
	MemFree      float64 `json:"MemFree"`
	MemTotal     float64 `json:"MemTotal"`
	MemAvailable float64 `json:"MemAvailable"`
	UsedPercent  float64 `json:"UsedPercent"`
	SwapFree     float64 `json:"SwapFree"`
	SwapTotal    float64 `json:"SwapTotal"`
	SwapCached   float64 `json:"SwapCached"`
}

type StatCollector interface {
	Start(ctx context.Context) error
	Stop()
}

type StatConfig struct {
	Verbose         bool             `json:"verbose,omitempy"`           // whether to display all fields or just the one used in trigger criteria
	LoggingInterval *LoggingInterval `json:"logging_interval,omitempty"` // check every X seconds
	Trigger         []*Trigger       `json:"trigger,omitempty"`          // defines threshold for alert to trigger
}

type SystemMetrics struct {
	LoadAverage *LoadAverage `json:"LoadAverage"`
	MemoryUsage *MemoryUsage `json:"MemoryUsage"`
	DiskUsage   *DiskUsage   `json:"DiskUsage"`
}

type Trigger struct {
	Measurement MeasurementType `json:"measurement"` // Measurement: eg Meemory
	Field       string          `json:"field"`       // A field of measurement eg UsedPercent
	Value       float64         `json:"value"`       // Threshold Value: eg 90
	Sign        string          `json:"sign"`        // Relational Operator: eg >
}