Eric Rakestraw
aa4774e0dd
feedkit now contains a reusable core, while weatherfeeder is a concrete implementation that includes weather-specific functions.
103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
package standards
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import (
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"fmt"
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"gitea.maximumdirect.net/ejr/weatherfeeder/internal/model"
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)
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type WMODescription struct {
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Day string
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Night string
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}
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// WMODescriptions is the canonical internal mapping of WMO code -> day/night text.
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// These are used to populate model.WeatherObservation.ConditionText.
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var WMODescriptions = map[model.WMOCode]WMODescription{
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0: {Day: "Sunny", Night: "Clear"},
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1: {Day: "Mainly Sunny", Night: "Mainly Clear"},
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2: {Day: "Partly Cloudy", Night: "Partly Cloudy"},
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3: {Day: "Cloudy", Night: "Cloudy"},
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45: {Day: "Foggy", Night: "Foggy"},
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48: {Day: "Rime Fog", Night: "Rime Fog"},
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51: {Day: "Light Drizzle", Night: "Light Drizzle"},
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53: {Day: "Drizzle", Night: "Drizzle"},
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55: {Day: "Heavy Drizzle", Night: "Heavy Drizzle"},
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56: {Day: "Light Freezing Drizzle", Night: "Light Freezing Drizzle"},
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57: {Day: "Freezing Drizzle", Night: "Freezing Drizzle"},
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61: {Day: "Light Rain", Night: "Light Rain"},
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63: {Day: "Rain", Night: "Rain"},
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65: {Day: "Heavy Rain", Night: "Heavy Rain"},
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66: {Day: "Light Freezing Rain", Night: "Light Freezing Rain"},
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67: {Day: "Freezing Rain", Night: "Freezing Rain"},
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71: {Day: "Light Snow", Night: "Light Snow"},
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73: {Day: "Snow", Night: "Snow"},
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75: {Day: "Heavy Snow", Night: "Heavy Snow"},
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77: {Day: "Snow Grains", Night: "Snow Grains"},
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80: {Day: "Light Showers", Night: "Light Showers"},
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81: {Day: "Showers", Night: "Showers"},
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82: {Day: "Heavy Showers", Night: "Heavy Showers"},
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85: {Day: "Light Snow Showers", Night: "Light Snow Showers"},
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86: {Day: "Snow Showers", Night: "Snow Showers"},
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95: {Day: "Thunderstorm", Night: "Thunderstorm"},
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96: {Day: "Light Thunderstorms With Hail", Night: "Light Thunderstorms With Hail"},
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99: {Day: "Thunderstorm With Hail", Night: "Thunderstorm With Hail"},
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}
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// WMOText returns the canonical text description for a WMO code.
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// If isDay is nil, it prefers the Day description (if present).
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//
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// This is intended to be used by drivers after they set ConditionCode.
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func WMOText(code model.WMOCode, isDay *bool) string {
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if code == model.WMOUnknown {
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return "Unknown"
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}
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desc, ok := WMODescriptions[code]
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if !ok {
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// Preserve the code in the message so it's diagnosable.
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return fmt.Sprintf("Unknown (WMO %d)", int(code))
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}
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// If day/night is unknown, default to Day if it exists.
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if isDay == nil {
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if desc.Day != "" {
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return desc.Day
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}
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if desc.Night != "" {
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return desc.Night
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}
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return fmt.Sprintf("Unknown (WMO %d)", int(code))
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}
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if *isDay {
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if desc.Day != "" {
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return desc.Day
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}
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// Fallback
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if desc.Night != "" {
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return desc.Night
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}
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return fmt.Sprintf("Unknown (WMO %d)", int(code))
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}
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// Night
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if desc.Night != "" {
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return desc.Night
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}
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// Fallback
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if desc.Day != "" {
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return desc.Day
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}
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return fmt.Sprintf("Unknown (WMO %d)", int(code))
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}
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// IsKnownWMO returns true if the code exists in our mapping table.
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func IsKnownWMO(code model.WMOCode) bool {
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if code == model.WMOUnknown {
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return false
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}
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_, ok := WMODescriptions[code]
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return ok
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}
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