133 lines
4.0 KiB
Lua
133 lines
4.0 KiB
Lua
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-- Weather Widget based on the OpenWeatherMap
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-- https://openweathermap.org/
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--
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-- @author Pavel Makhov
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-- @copyright 2018 Pavel Makhov
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-------------------------------------------------
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local http = require("socket.http")
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local json = require("json")
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local naughty = require("naughty")
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local wibox = require("wibox")
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local city = os.getenv("AWW_WEATHER_CITY") or "Montreal,ca"
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local open_map_key = os.getenv("AWW_WEATHER_API_KEY") or 'c3d7320b359da4e48c2d682a04076576'
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local path_to_icons = "/usr/share/icons/Arc/status/symbolic/"
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local icon_widget = wibox.widget {
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{
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id = "icon",
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resize = false,
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widget = wibox.widget.imagebox,
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},
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layout = wibox.container.margin(_ , 0, 0, 3),
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set_image = function(self, path)
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self.icon.image = path
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end,
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}
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local temp_widget = wibox.widget{
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font = "Play 9",
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widget = wibox.widget.textbox,
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}
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local weather_widget = wibox.widget {
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icon_widget,
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temp_widget,
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layout = wibox.layout.fixed.horizontal,
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}
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--- Maps openWeatherMap icons to Arc icons
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local icon_map = {
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["01d"] = "weather-clear-symbolic.svg",
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["02d"] = "weather-few-clouds-symbolic.svg",
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["03d"] = "weather-clouds-symbolic.svg",
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["04d"] = "weather-overcast-symbolic.svg",
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["09d"] = "weather-showers-scattered-symbolic.svg",
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["10d"] = "weather-showers-symbolic.svg",
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["11d"] = "weather-storm-symbolic.svg",
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["13d"] = "weather-snow-symbolic.svg",
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["50d"] = "weather-fog-symbolic.svg",
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["01n"] = "weather-clear-night-symbolic.svg",
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["02n"] = "weather-few-clouds-night-symbolic.svg",
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["03n"] = "weather-clouds-night-symbolic.svg",
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["04n"] = "weather-overcast-symbolic.svg",
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["09n"] = "weather-showers-scattered-symbolic.svg",
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["10n"] = "weather-showers-symbolic.svg",
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["11n"] = "weather-storm-symbolic.svg",
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["13n"] = "weather-snow-symbolic.svg",
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["50n"] = "weather-fog-symbolic.svg"
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}
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--- handy function to convert temperature from Kelvin to Celcius
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function to_celcius(kelvin)
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return math.floor(tonumber(kelvin) - 273.15)
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end
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--- Return wind direction as a string.
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function to_direction(degrees)
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-- Ref: https://www.campbellsci.eu/blog/convert-wind-directions
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if degrees == nil then
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return "Unknown dir"
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end
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local directions = {
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"N",
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"NNE",
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"NE",
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"ENE",
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"E",
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"ESE",
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"SE",
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"SSE",
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"S",
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"SSW",
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"SW",
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"WSW",
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"W",
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"WNW",
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"NW",
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"NNW",
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"N",
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}
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return directions[math.floor((degrees % 360) / 22.5) + 1]
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end
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local weather_timer = timer({ timeout = 60 })
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local resp
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weather_timer:connect_signal("timeout", function ()
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local resp_json = http.request("https://api.openweathermap.org/data/2.5/weather?q=" .. city .."&appid=" .. open_map_key)
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if (resp_json ~= nil) then
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resp = json.decode(resp_json)
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icon_widget.image = path_to_icons .. icon_map[resp.weather[1].icon]
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temp_widget:set_text(to_celcius(resp.main.temp) .. "°C")
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end
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end)
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weather_timer:start()
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weather_timer:emit_signal("timeout")
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--- Notification with weather information. Popups when mouse hovers over the icon
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local notification
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weather_widget:connect_signal("mouse::enter", function()
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notification = naughty.notify{
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icon = path_to_icons .. icon_map[resp.weather[1].icon],
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icon_size=20,
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text =
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'<big>' .. resp.weather[1].main .. ' (' .. resp.weather[1].description .. ')</big><br>' ..
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'<b>Humidity:</b> ' .. resp.main.humidity .. '%<br>' ..
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'<b>Temperature: </b>' .. to_celcius(resp.main.temp) .. '<br>' ..
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'<b>Pressure: </b>' .. resp.main.pressure .. 'hPa<br>' ..
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'<b>Clouds: </b>' .. resp.clouds.all .. '%<br>' ..
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'<b>Wind: </b>' .. resp.wind.speed .. 'm/s (' .. to_direction(resp.wind.deg) .. ')',
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timeout = 5, hover_timeout = 10,
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width = 200
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}
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end)
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weather_widget:connect_signal("mouse::leave", function()
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naughty.destroy(notification)
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end)
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return weather_widget
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