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ascii-art-table.go
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package frontends
import (
"flag"
"fmt"
"log"
"math"
"os"
"regexp"
"strings"
"time"
"github.com/mattn/go-colorable"
"github.com/mattn/go-runewidth"
"github.com/schachmat/wego/iface"
)
type aatConfig struct {
coords bool
monochrome bool
unit iface.UnitSystem
}
//TODO: replace s parameter with printf interface?
func aatPad(s string, mustLen int) (ret string) {
ansiEsc := regexp.MustCompile("\033.*?m")
ret = s
realLen := runewidth.StringWidth(ansiEsc.ReplaceAllLiteralString(s, ""))
delta := mustLen - realLen
if delta > 0 {
ret += "\033[0m" + strings.Repeat(" ", delta)
} else if delta < 0 {
toks := ansiEsc.Split(s, 2)
tokLen := runewidth.StringWidth(toks[0])
if tokLen > mustLen {
ret = fmt.Sprintf("%.*s\033[0m", mustLen, toks[0])
} else {
esc := ansiEsc.FindString(s)
ret = fmt.Sprintf("%s%s%s", toks[0], esc, aatPad(toks[1], mustLen-tokLen))
}
}
return
}
func (c *aatConfig) formatTemp(cond iface.Cond) string {
color := func(temp float32) string {
colmap := []struct {
maxtemp float32
color int
}{
{-15, 21}, {-12, 27}, {-9, 33}, {-6, 39}, {-3, 45},
{0, 51}, {2, 50}, {4, 49}, {6, 48}, {8, 47},
{10, 46}, {13, 82}, {16, 118}, {19, 154}, {22, 190},
{25, 226}, {28, 220}, {31, 214}, {34, 208}, {37, 202},
}
col := 196
for _, candidate := range colmap {
if temp < candidate.maxtemp {
col = candidate.color
break
}
}
t, _ := c.unit.Temp(temp)
return fmt.Sprintf("\033[38;5;%03dm%d\033[0m", col, int(t))
}
_, u := c.unit.Temp(0.0)
if cond.TempC == nil {
return aatPad(fmt.Sprintf("? %s", u), 15)
}
t := *cond.TempC
if cond.FeelsLikeC != nil {
fl := *cond.FeelsLikeC
return aatPad(fmt.Sprintf("%s (%s) %s", color(t), color(fl), u), 15)
}
return aatPad(fmt.Sprintf("%s %s", color(t), u), 15)
}
func (c *aatConfig) formatWind(cond iface.Cond) string {
windDir := func(deg *int) string {
if deg == nil {
return "?"
}
arrows := []string{"↓", "↙", "←", "↖", "↑", "↗", "→", "↘"}
return "\033[1m" + arrows[((*deg+22)%360)/45] + "\033[0m"
}
color := func(spdKmph float32) string {
colmap := []struct {
maxtemp float32
color int
}{
{0, 46}, {4, 82}, {7, 118}, {10, 154}, {13, 190},
{16, 226}, {20, 220}, {24, 214}, {28, 208}, {32, 202},
}
col := 196
for _, candidate := range colmap {
if spdKmph < candidate.maxtemp {
col = candidate.color
break
}
}
s, _ := c.unit.Speed(spdKmph)
return fmt.Sprintf("\033[38;5;%03dm%d\033[0m", col, int(s))
}
_, u := c.unit.Speed(0.0)
if cond.WindspeedKmph == nil {
return aatPad(windDir(cond.WinddirDegree), 15)
}
s := *cond.WindspeedKmph
if cond.WindGustKmph != nil {
if g := *cond.WindGustKmph; g > s {
return aatPad(fmt.Sprintf("%s %s – %s %s", windDir(cond.WinddirDegree), color(s), color(g), u), 15)
}
}
return aatPad(fmt.Sprintf("%s %s %s", windDir(cond.WinddirDegree), color(s), u), 15)
}
func (c *aatConfig) formatVisibility(cond iface.Cond) string {
if cond.VisibleDistM == nil {
return aatPad("", 15)
}
v, u := c.unit.Distance(*cond.VisibleDistM)
return aatPad(fmt.Sprintf("%d %s", int(v), u), 15)
}
func (c *aatConfig) formatRain(cond iface.Cond) string {
if cond.PrecipM != nil {
v, u := c.unit.Distance(*cond.PrecipM)
u += "/h" // it's the same in all unit systems
if cond.ChanceOfRainPercent != nil {
return aatPad(fmt.Sprintf("%.1f %s | %d%%", v, u, *cond.ChanceOfRainPercent), 15)
}
return aatPad(fmt.Sprintf("%.1f %s", v, u), 15)
} else if cond.ChanceOfRainPercent != nil {
return aatPad(fmt.Sprintf("%d%%", *cond.ChanceOfRainPercent), 15)
}
return aatPad("", 15)
}
func (c *aatConfig) formatCond(cur []string, cond iface.Cond, current bool) (ret []string) {
codes := map[iface.WeatherCode][]string{
iface.CodeUnknown: {
" .-. ",
" __) ",
" ( ",
" `-᾿ ",
" • ",
},
iface.CodeCloudy: {
" ",
"\033[38;5;250m .--. \033[0m",
"\033[38;5;250m .-( ). \033[0m",
"\033[38;5;250m (___.__)__) \033[0m",
" ",
},
iface.CodeFog: {
" ",
"\033[38;5;251m _ - _ - _ - \033[0m",
"\033[38;5;251m _ - _ - _ \033[0m",
"\033[38;5;251m _ - _ - _ - \033[0m",
" ",
},
iface.CodeHeavyRain: {
"\033[38;5;244;1m .-. \033[0m",
"\033[38;5;244;1m ( ). \033[0m",
"\033[38;5;244;1m (___(__) \033[0m",
"\033[38;5;33;1m ‚ʻ‚ʻ‚ʻ‚ʻ \033[0m",
"\033[38;5;33;1m ‚ʻ‚ʻ‚ʻ‚ʻ \033[0m",
},
iface.CodeHeavyShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;244;1m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;244;1m( ). \033[0m",
"\033[38;5;226m /\033[38;5;244;1m(___(__) \033[0m",
"\033[38;5;33;1m ‚ʻ‚ʻ‚ʻ‚ʻ \033[0m",
"\033[38;5;33;1m ‚ʻ‚ʻ‚ʻ‚ʻ \033[0m",
},
iface.CodeHeavySnow: {
"\033[38;5;244;1m .-. \033[0m",
"\033[38;5;244;1m ( ). \033[0m",
"\033[38;5;244;1m (___(__) \033[0m",
"\033[38;5;255;1m * * * * \033[0m",
"\033[38;5;255;1m * * * * \033[0m",
},
iface.CodeHeavySnowShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;244;1m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;244;1m( ). \033[0m",
"\033[38;5;226m /\033[38;5;244;1m(___(__) \033[0m",
"\033[38;5;255;1m * * * * \033[0m",
"\033[38;5;255;1m * * * * \033[0m",
},
iface.CodeLightRain: {
"\033[38;5;250m .-. \033[0m",
"\033[38;5;250m ( ). \033[0m",
"\033[38;5;250m (___(__) \033[0m",
"\033[38;5;111m ʻ ʻ ʻ ʻ \033[0m",
"\033[38;5;111m ʻ ʻ ʻ ʻ \033[0m",
},
iface.CodeLightShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;250m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
"\033[38;5;111m ʻ ʻ ʻ ʻ \033[0m",
"\033[38;5;111m ʻ ʻ ʻ ʻ \033[0m",
},
iface.CodeLightSleet: {
"\033[38;5;250m .-. \033[0m",
"\033[38;5;250m ( ). \033[0m",
"\033[38;5;250m (___(__) \033[0m",
"\033[38;5;111m ʻ \033[38;5;255m*\033[38;5;111m ʻ \033[38;5;255m* \033[0m",
"\033[38;5;255m *\033[38;5;111m ʻ \033[38;5;255m*\033[38;5;111m ʻ \033[0m",
},
iface.CodeLightSleetShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;250m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
"\033[38;5;111m ʻ \033[38;5;255m*\033[38;5;111m ʻ \033[38;5;255m* \033[0m",
"\033[38;5;255m *\033[38;5;111m ʻ \033[38;5;255m*\033[38;5;111m ʻ \033[0m",
},
iface.CodeLightSnow: {
"\033[38;5;250m .-. \033[0m",
"\033[38;5;250m ( ). \033[0m",
"\033[38;5;250m (___(__) \033[0m",
"\033[38;5;255m * * * \033[0m",
"\033[38;5;255m * * * \033[0m",
},
iface.CodeLightSnowShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;250m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
"\033[38;5;255m * * * \033[0m",
"\033[38;5;255m * * * \033[0m",
},
iface.CodePartlyCloudy: {
"\033[38;5;226m \\__/\033[0m ",
"\033[38;5;226m __/ \033[38;5;250m.-. \033[0m",
"\033[38;5;226m \\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
" ",
},
iface.CodeSunny: {
"\033[38;5;226m \\ . / \033[0m",
"\033[38;5;226m - .-. - \033[0m",
"\033[38;5;226m ‒ ( ) ‒ \033[0m",
"\033[38;5;226m . `-᾿ . \033[0m",
"\033[38;5;226m / ' \\ \033[0m",
},
iface.CodeThunderyHeavyRain: {
"\033[38;5;244;1m .-. \033[0m",
"\033[38;5;244;1m ( ). \033[0m",
"\033[38;5;244;1m (___(__) \033[0m",
"\033[38;5;33;1m ‚ʻ\033[38;5;228;5m⚡\033[38;5;33;25mʻ‚\033[38;5;228;5m⚡\033[38;5;33;25m‚ʻ \033[0m",
"\033[38;5;33;1m ‚ʻ‚ʻ\033[38;5;228;5m⚡\033[38;5;33;25mʻ‚ʻ \033[0m",
},
iface.CodeThunderyShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;250m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
"\033[38;5;228;5m ⚡\033[38;5;111;25mʻ ʻ\033[38;5;228;5m⚡\033[38;5;111;25mʻ ʻ \033[0m",
"\033[38;5;111m ʻ ʻ ʻ ʻ \033[0m",
},
iface.CodeThunderySnowShowers: {
"\033[38;5;226m _`/\"\"\033[38;5;250m.-. \033[0m",
"\033[38;5;226m ,\\_\033[38;5;250m( ). \033[0m",
"\033[38;5;226m /\033[38;5;250m(___(__) \033[0m",
"\033[38;5;255m *\033[38;5;228;5m⚡\033[38;5;255;25m *\033[38;5;228;5m⚡\033[38;5;255;25m * \033[0m",
"\033[38;5;255m * * * \033[0m",
},
iface.CodeVeryCloudy: {
" ",
"\033[38;5;244;1m .--. \033[0m",
"\033[38;5;244;1m .-( ). \033[0m",
"\033[38;5;244;1m (___.__)__) \033[0m",
" ",
},
}
icon, ok := codes[cond.Code]
if !ok {
log.Fatalln("aat-frontend: The following weather code has no icon:", cond.Code)
}
desc := cond.Desc
if !current {
desc = runewidth.Truncate(runewidth.FillRight(desc, 15), 15, "…")
}
ret = append(ret, fmt.Sprintf("%v %v %v", cur[0], icon[0], desc))
ret = append(ret, fmt.Sprintf("%v %v %v", cur[1], icon[1], c.formatTemp(cond)))
ret = append(ret, fmt.Sprintf("%v %v %v", cur[2], icon[2], c.formatWind(cond)))
ret = append(ret, fmt.Sprintf("%v %v %v", cur[3], icon[3], c.formatVisibility(cond)))
ret = append(ret, fmt.Sprintf("%v %v %v", cur[4], icon[4], c.formatRain(cond)))
return
}
func (c *aatConfig) formatGeo(coords *iface.LatLon) (ret string) {
if !c.coords || coords == nil {
return ""
}
lat, lon := "N", "E"
if coords.Latitude < 0 {
lat = "S"
}
if coords.Longitude < 0 {
lon = "W"
}
ret = " "
ret += fmt.Sprintf("(%.1f°%s", math.Abs(float64(coords.Latitude)), lat)
ret += fmt.Sprintf(" %.1f°%s)", math.Abs(float64(coords.Longitude)), lon)
return
}
func (c *aatConfig) printDay(day iface.Day) (ret []string) {
desiredTimesOfDay := []time.Duration{
8 * time.Hour,
12 * time.Hour,
19 * time.Hour,
23 * time.Hour,
}
ret = make([]string, 5)
for i := range ret {
ret[i] = "│"
}
// save our selected elements from day.Slots in this array
cols := make([]iface.Cond, len(desiredTimesOfDay))
// find hourly data which fits the desired times of day best
for _, candidate := range day.Slots {
cand := candidate.Time.UTC().Sub(candidate.Time.Truncate(24 * time.Hour))
for i, col := range cols {
cur := col.Time.Sub(col.Time.Truncate(24 * time.Hour))
if col.Time.IsZero() || math.Abs(float64(cand-desiredTimesOfDay[i])) < math.Abs(float64(cur-desiredTimesOfDay[i])) {
cols[i] = candidate
}
}
}
for _, s := range cols {
ret = c.formatCond(ret, s, false)
for i := range ret {
ret[i] = ret[i] + "│"
}
}
dateFmt := "┤ " + day.Date.Format("Mon 02. Jan") + " ├"
ret = append([]string{
" ┌─────────────┐ ",
"┌──────────────────────────────┬───────────────────────" + dateFmt + "───────────────────────┬──────────────────────────────┐",
"│ Morning │ Noon └──────┬──────┘ Evening │ Night │",
"├──────────────────────────────┼──────────────────────────────┼──────────────────────────────┼──────────────────────────────┤"},
ret...)
return append(ret,
"└──────────────────────────────┴──────────────────────────────┴──────────────────────────────┴──────────────────────────────┘")
}
func (c *aatConfig) Setup() {
flag.BoolVar(&c.coords, "aat-coords", false, "aat-frontend: Show geo coordinates")
flag.BoolVar(&c.monochrome, "aat-monochrome", false, "aat-frontend: Monochrome output")
}
func (c *aatConfig) Render(r iface.Data, unitSystem iface.UnitSystem) {
c.unit = unitSystem
fmt.Printf("Weather for %s%s\n\n", r.Location, c.formatGeo(r.GeoLoc))
stdout := colorable.NewColorableStdout()
if c.monochrome {
stdout = colorable.NewNonColorable(os.Stdout)
}
out := c.formatCond(make([]string, 5), r.Current, true)
for _, val := range out {
fmt.Fprintln(stdout, val)
}
if len(r.Forecast) == 0 {
return
}
if r.Forecast == nil {
log.Fatal("No detailed weather forecast available.")
}
for _, d := range r.Forecast {
for _, val := range c.printDay(d) {
fmt.Fprintln(stdout, val)
}
}
}
func init() {
iface.AllFrontends["ascii-art-table"] = &aatConfig{}
}