forked from Arsen6331/infinitime
parent
522c10a9c0
commit
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package weather
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import (
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"time"
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)
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// Type of weather event
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type EventType uint8
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// These event types correspond to structs
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// that can be used to add an event to the
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// weather timeline
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const (
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EventTypeObscuration EventType = iota
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EventTypePrecipitation
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EventTypeWind
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EventTypeTemperature
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EventTypeAirQuality
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EventTypeSpecial
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EventTypePressure
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EventTypeLocation
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EventTypeClouds
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EventTypeHumidity
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)
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// Special event type
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type SpecialType uint8
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// See https://git.io/JM7Oe for the meaning of each type
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const (
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SpecialTypeSquall SpecialType = iota
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SpecialTypeTsunami
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SpecialTypeTornado
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SpecialTypeFire
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SpecialTypeThunder
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)
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// Precipitation type
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type PrecipitationType uint8
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// See https://git.io/JM7YM for the meaning of each type
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const (
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PrecipitationTypeNone PrecipitationType = iota
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PrecipitationTypeRain
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PrecipitationTypeDrizzle
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PrecipitationTypeFreezingRain
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PrecipitationTypeSleet
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PrecipitationTypeHail
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PrecipitationTypeSmallHail
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PrecipitationTypeSnow
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PrecipitationTypeSnowGrains
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PrecipitationTypeIceCrystals
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PrecipitationTypeAsh
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)
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// Visibility obscuration type
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type ObscurationType uint8
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// See https://git.io/JM7Yd for the meaning of each type
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const (
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ObscurationTypeNone ObscurationType = iota
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ObscurationTypeFog
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ObscurationTypeHaze
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ObscurationTypeSmoke
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ObscurationTypeAsh
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ObscurationTypeDust
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ObscurationTypeSand
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ObscurationTypeMist
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ObscurationTypePrecipitation
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)
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// TimelineHeader contains the header for a timeline envent
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type TimelineHeader struct {
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// UNIX timestamp with timezone offset
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Timestamp uint64
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// Seconds until the event expires
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Expires uint32
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// Type of weather event
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EventType EventType
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}
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// NewHeader creates and populates a new timeline header
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// and returns it
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func NewHeader(evtType EventType, expires time.Duration) TimelineHeader {
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return TimelineHeader{
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Timestamp: uint64(time.Now().Unix()),
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Expires: uint32(expires.Seconds()),
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EventType: evtType,
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}
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}
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// CloudsEvent corresponds to EventTypeClouds
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type CloudsEvent struct {
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TimelineHeader
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// Cloud coverage percentage
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Amount uint8
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}
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// ObscurationEvent corresponds to EventTypeObscuration
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type ObscurationEvent struct {
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TimelineHeader
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// Type of obscuration
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Type ObscurationType
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// Visibility in meters. 65535 is unspecified.
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Amount uint16
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}
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// PrecipitationEvent corresponds to EventTypePrecipitation
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type PrecipitationEvent struct {
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TimelineHeader
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// Type of precipitation
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Type PrecipitationType
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// Amount of rain in millimeters. 255 is unspecified.
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Amount uint8
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}
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// WindEvent corresponds to EventTypeWind
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type WindEvent struct {
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TimelineHeader
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// Minimum speed in meters per second
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SpeedMin uint8
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// Maximum speed in meters per second
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SpeedMax uint8
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// Unitless direction, about 1 unit per 0.71 degrees.
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DirectionMin uint8
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// Unitless direction, about 1 unit per 0.71 degrees
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DirectionMax uint8
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}
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// TemperatureEvent corresponds to EventTypeTemperature
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type TemperatureEvent struct {
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TimelineHeader
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// Temperature in celcius multiplied by 100.
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// -32768 is "no data"
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Temperature int16
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// Dew point in celcius multiplied by 100.
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// -32768 is "no data"
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DewPoint int16
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}
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// LocationEvent corresponds to EventTypeLocation
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type LocationEvent struct {
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TimelineHeader
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// Location name
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Location string
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// Altitude from sea level in meters
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Altitude int16
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// EPSG:3857 latitude (Google Maps, Openstreetmaps)
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Latitude int32
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// EPSG:3857 longitude (Google Maps, Openstreetmaps)
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Longitude int32
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}
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// HumidityEvent corresponds to EventTypeHumidity
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type HumidityEvent struct {
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TimelineHeader
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// Relative humidity percentage
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Humidity uint8
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}
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// PressureEvent corresponds to EventTypePressure
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type PressureEvent struct {
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TimelineHeader
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// Air pressure in hectopascals (hPa)
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Pressure int16
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}
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// SpecialEvent corresponds to EventTypeSpecial
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type SpecialEvent struct {
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TimelineHeader
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// Type of special event
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Type SpecialType
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}
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// AirQualityEvent corresponds to EventTypeAirQuality
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type AirQualityEvent struct {
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TimelineHeader
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// Name of the polluting item
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//
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// Do not localize the name. That should be handled by the watch.
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//
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// For particulate matter, use "PM0.1"`, "PM5", or "PM10".
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//
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// For chemicals, use the molecular formula ("NO2", "CO2", or "O3").
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//
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// For pollen, use the genus of the plant.
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Polluter string
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// Amount of pollution in SI units
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//
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// https://ec.europa.eu/environment/air/quality/standards.htm
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// http://www.ourair.org/wp-content/uploads/2012-aaqs2.pdf
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Amount uint32
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}
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