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// Package i18n holds the translations for everything prognosis writes itself:
// column headers, condition names, section labels, weekday and month names, and
// pollen species and bands.
//
// What is deliberately NOT translated: the body of an IMGW warning. IMGW
// publishes those in Polish only, and rendering an invented English version of
// an official warning would be worse than showing the original. In English mode
// the surrounding labels are English and the warning text stays Polish.
package i18n
import (
"fmt"
"time"
)
// Lang is a supported display language.
type Lang string
const (
EN Lang = "en"
PL Lang = "pl"
)
// Catalog is the set of strings for one language.
type Catalog struct {
lang Lang
// Table headers, keyed by column name.
headers map[string]string
// WMO weather code descriptions.
conditions map[int]string
// Section labels and short words.
words map[string]string
// Pollen taxa.
species map[string]string
// Qualitative pollen levels.
bands map[string]string
weekdays [7]string
months [12]string
}
var catalogs = map[Lang]*Catalog{EN: english(), PL: polish()}
// For returns the catalogue for a language, falling back to English so a
// mistyped language degrades to readable output rather than empty strings.
func For(lang string) *Catalog {
if c, ok := catalogs[Lang(lang)]; ok {
return c
}
return catalogs[EN]
}
// Lang reports which language this catalogue is.
func (c *Catalog) Lang() Lang { return c.lang }
// Header is the column heading for a column name.
func (c *Catalog) Header(column string) string {
if s, ok := c.headers[column]; ok {
return s
}
return column
}
// Condition describes a WMO weather code. Unknown codes are reported as such
// rather than silently blank, so a new code in the API is visible.
func (c *Catalog) Condition(code int) string {
if s, ok := c.conditions[code]; ok {
return s
}
return fmt.Sprintf("code %d", code)
}
// Word returns a label such as "day", "pollen" or "warnings".
func (c *Catalog) Word(key string) string {
if s, ok := c.words[key]; ok {
return s
}
return key
}
// Species is the display name of a pollen taxon.
func (c *Catalog) Species(name string) string {
if s, ok := c.species[name]; ok {
return s
}
return name
}
// Band is the display name of a qualitative pollen level.
func (c *Catalog) Band(key string) string {
if s, ok := c.bands[key]; ok {
return s
}
return key
}
// Date formats a date as "Mon 10 Aug" in the catalogue's language. Go's time
// package has no locale support, so the names come from the catalogue.
func (c *Catalog) Date(t time.Time) string {
return fmt.Sprintf("%s %02d %s", c.weekdays[int(t.Weekday())], t.Day(), c.months[int(t.Month())-1])
}
func english() *Catalog {
return &Catalog{
lang: EN,
headers: map[string]string{
"hour": "hr", "icon": "", "temp": "temp", "feels": "feels",
"conditions": "conditions", "mm": "mm", "rain": "rain",
"wind": "wind", "gusts": "gusts", "dir": "dir",
"humidity": "hum", "dew": "dew", "uv": "uv",
"cloud": "cloud", "pressure": "hPa", "visibility": "vis",
},
conditions: map[int]string{
0: "clear", 1: "mainly clear", 2: "part cloudy", 3: "overcast",
45: "fog", 48: "rime fog",
51: "lt drizzle", 53: "drizzle", 55: "hvy drizzle",
56: "frz drizzle", 57: "frz drizzle",
61: "lt rain", 63: "rain", 65: "hvy rain",
66: "frz rain", 67: "frz rain",
71: "lt snow", 73: "snow", 75: "hvy snow", 77: "snow grains",
80: "lt showers", 81: "showers", 82: "hvy showers",
85: "snow showers", 86: "hvy snow showers",
95: "thunderstorm", 96: "storm + hail", 99: "storm + hail",
},
words: map[string]string{
"sun": "sun", "up": "up", "down": "down",
"day": "day", "dry": "dry", "pollen": "pollen",
"rainfall": "rain", "over": "over", "daylight": "daylight",
"of": "of", "max": "max", "level": "level",
"warnings": "warnings", "could_not_check": "could not check IMGW",
"poland_only": "IMGW covers Poland only",
"hours_available": "hours available, not",
"h_per_col": "h/col", "temp_row": "temp", "rain_row": "rain",
},
species: map[string]string{
"grass": "grass", "birch": "birch", "alder": "alder",
"mugwort": "mugwort", "ragweed": "ragweed", "olive": "olive",
},
bands: map[string]string{
"none": "none", "low": "low", "medium": "medium",
"high": "high", "very high": "very high",
},
weekdays: [7]string{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"},
months: [12]string{"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"},
}
}
func polish() *Catalog {
return &Catalog{
lang: PL,
headers: map[string]string{
"hour": "godz", "icon": "", "temp": "temp", "feels": "odczuw",
"conditions": "warunki", "mm": "mm", "rain": "deszcz",
"wind": "wiatr", "gusts": "porywy", "dir": "kier",
"humidity": "wilg", "dew": "ros", "uv": "uv",
"cloud": "chmury", "pressure": "hPa", "visibility": "wid",
},
// Terminology follows IMGW's own vocabulary where it has one, so the
// table and a warning describe the same weather in the same words.
conditions: map[int]string{
0: "bezchmurnie", 1: "gł. bezchmurnie", 2: "częśc. zachm.", 3: "zachmurzenie",
45: "mgła", 48: "mgła osadz.",
51: "słaba mżawka", 53: "mżawka", 55: "silna mżawka",
56: "mżawka marzn.", 57: "mżawka marzn.",
61: "słaby deszcz", 63: "deszcz", 65: "silny deszcz",
66: "deszcz marzn.", 67: "deszcz marzn.",
71: "słaby śnieg", 73: "śnieg", 75: "silny śnieg", 77: "ziarna śniegu",
80: "słabe przelotne", 81: "przelotne", 82: "silne przelotne",
85: "przelotny śnieg", 86: "silny przel. śnieg",
95: "burza", 96: "burza z gradem", 99: "burza z gradem",
},
words: map[string]string{
"sun": "słońce", "up": "wsch", "down": "zach",
"day": "dzień", "dry": "sucho", "pollen": "pyłek",
"rainfall": "opad", "over": "przez", "daylight": "dnia",
"of": "z", "max": "maks", "level": "stopień",
"warnings": "ostrzeżenia", "could_not_check": "nie udało się sprawdzić IMGW",
"poland_only": "IMGW obejmuje tylko Polskę",
"hours_available": "godzin dostępnych, nie",
"h_per_col": "h/kol", "temp_row": "temp", "rain_row": "opad",
},
species: map[string]string{
"grass": "trawy", "birch": "brzoza", "alder": "olcha",
"mugwort": "bylica", "ragweed": "ambrozja", "olive": "oliwka",
},
bands: map[string]string{
"none": "brak", "low": "niskie", "medium": "średnie",
"high": "wysokie", "very high": "b. wysokie",
},
weekdays: [7]string{"nd", "pn", "wt", "śr", "cz", "pt", "sb"},
months: [12]string{"sty", "lut", "mar", "kwi", "maj", "cze",
"lip", "sie", "wrz", "paź", "lis", "gru"},
}
}
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