115 lines
2.4 KiB
Go
115 lines
2.4 KiB
Go
package sensors
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import (
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"errors"
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"slices"
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"time"
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)
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func (s *Sensor) Validate() error {
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if s.SensorID == "" {
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return ErrInvalidSensorIdentifier
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}
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if s.SensorType == "" {
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return ErrInvalidSensorType
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}
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validTypes := []SType{Temperature, Humidity, CarbonDioxide, Pressure, Proximity, Light}
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isValid := slices.Contains(validTypes, s.SensorType)
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if !isValid {
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return ErrInvalidSensorType
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}
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if s.SamplingInterval == nil {
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defaultInterval := time.Second * 3600
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s.SamplingInterval = &defaultInterval
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}
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if s.ThresholdAbove == nil {
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defaultAbove := 100.0
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s.ThresholdAbove = &defaultAbove
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}
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if s.ThresholdBelow == nil {
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defaultBelow := 0.0
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s.ThresholdBelow = &defaultBelow
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}
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return nil
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}
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func (d *SensorData) Validate() error {
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if d.SensorID == "" {
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return ErrInvalidSensorIdentifier
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}
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if d.Value == nil {
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return ErrMissingValue
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}
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if d.Timestamp == nil {
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now := time.Now()
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d.Timestamp = &now
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}
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return nil
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}
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// TODO: implement this in service layer for alerts
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func (d *SensorData) IsOutOfRangeAbove(sensor Sensor) bool {
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if d.Value == nil || sensor.ThresholdAbove == nil {
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return false
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}
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return *d.Value > *sensor.ThresholdAbove
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}
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func (d *SensorData) IsOutOfRangeBelow(sensor Sensor) bool {
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if d.Value == nil || sensor.ThresholdBelow == nil {
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return false
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}
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return *d.Value < *sensor.ThresholdBelow
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}
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func (r *SensorRequest) Validate() error {
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if r.SensorID == "" {
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return ErrInvalidSensorIdentifier
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}
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return nil
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}
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func (r *SensorDataRequest) Validate() error {
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if r.SensorID == "" {
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return ErrInvalidSensorIdentifier
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}
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if r.To == nil || *r.To == "" {
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defaultTo := time.Now().Format(time.RFC3339)
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r.To = &defaultTo
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} else {
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if _, err := time.Parse(time.RFC3339, *r.To); err != nil {
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defaultTo := time.Now().Format(time.RFC3339)
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r.To = &defaultTo
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}
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}
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if r.From == nil || *r.From == "" {
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defaultFrom := time.Now().AddDate(0, 0, -7).Format(time.RFC3339)
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r.From = &defaultFrom
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} else {
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if _, err := time.Parse(time.RFC3339, *r.From); err != nil {
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defaultFrom := time.Now().AddDate(0, 0, -7).Format(time.RFC3339)
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r.From = &defaultFrom
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}
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}
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return nil
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}
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var (
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ErrInvalidSensorIdentifier = errors.New("sensor identifier is required")
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ErrInvalidSensorType = errors.New("sensor type is required")
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ErrSensorNotFound = errors.New("sensor not found")
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ErrMissingValue = errors.New("sensor value no provided")
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ErrSensorAlreadyExists = errors.New("sensor already exists")
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)
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