mirror of https://github.com/lcpz/lain.git
126 lines
4.6 KiB
Lua
126 lines
4.6 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2015, Luke Bonham
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--]]
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local newtimer = require("lain.helpers").newtimer
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local async = require("lain.asyncshell")
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local json = require("lain.util").dkjson
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local lain_icons = require("lain.helpers").icons_dir
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local naughty = require("naughty")
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local wibox = require("wibox")
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local math = { floor = math.floor }
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local string = { format = string.format,
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gsub = string.gsub }
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local setmetatable = setmetatable
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-- OpenWeatherMap
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-- current weather and X-days forecast
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-- lain.widgets.weather
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local function worker(args)
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local weather = {}
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local args = args or {}
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local timeout = args.timeout or 900 -- 15 min
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local timeout_forecast = args.timeout or 86400 -- 24 hrs
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local current_call = "curl -s 'http://api.openweathermap.org/data/2.5/weather?id=%s&units=%s&lang=%s'"
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local forecast_call = "curl -s 'http://api.openweathermap.org/data/2.5/forecast/daily?id=%s&units=%s&lang=%s&cnt=%s'"
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local city_id = args.city_id
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local units = args.units or "metric"
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local lang = args.lang or "en"
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local cnt = args.cnt or 7
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local date_cmd = args.date_cmd or "date -u -d @%d +'%%a %%d'"
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local icons_path = args.icons_path or lain_icons .. "openweathermap/"
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local w_notification_preset = args.w_notification_preset or {}
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local settings = args.settings or function() end
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weather.widget = wibox.widget.textbox('')
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weather.icon = wibox.widget.imagebox()
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function weather.show(t_out)
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weather.hide()
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weather.notification = naughty.notify({
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text = weather.notification_text,
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icon = weather.icon_path,
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timeout = t_out,
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preset = w_notification_preset
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})
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end
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function weather.hide()
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if weather.notification ~= nil then
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naughty.destroy(weather.notification)
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weather.notification = nil
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end
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end
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function weather.attach(obj)
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obj:connect_signal("mouse::enter", function()
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weather.show(0)
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end)
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obj:connect_signal("mouse::leave", function()
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weather.hide()
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end)
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end
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function weather.forecast_update()
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local cmd = string.format(forecast_call, city_id, units, lang, cnt)
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async.request(cmd, function(f)
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j = f:read("*a")
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f:close()
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weather_now, pos, err = json.decode(j, 1, nil)
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if tonumber(weather_now["cod"]) == 200 then
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weather.notification_text = ''
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for i = 1, weather_now["cnt"] do
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local f = assert(io.popen(string.format(date_cmd, weather_now["list"][i]["dt"])))
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day = string.gsub(f:read("a"), "\n", "")
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f:close()
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tmin = math.floor(weather_now["list"][i]["temp"]["min"])
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tmax = math.floor(weather_now["list"][i]["temp"]["max"])
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desc = weather_now["list"][i]["weather"][1]["description"]
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weather.notification_text = weather.notification_text ..
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string.format("<b>%s</b>: %s, %d - %d ", day, desc, tmin, tmax)
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if i < weather_now["cnt"] then
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weather.notification_text = weather.notification_text .. "\n"
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end
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end
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end
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end)
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end
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function weather.update()
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local cmd = string.format(current_call, city_id, units, lang)
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async.request(cmd, function(f)
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j = f:read("*a")
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f:close()
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weather_now, pos, err = json.decode(j, 1, nil)
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if err then
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weather.widget.set_text("N/A")
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weather.icon:set_image(icons_path .. "na.png")
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elseif tonumber(weather_now["cod"]) == 200 then
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weather.icon_path = icons_path .. weather_now["weather"][1]["icon"] .. ".png"
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weather.icon:set_image(weather.icon_path)
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widget = weather.widget
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settings()
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end
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end)
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end
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newtimer("weather", timeout, weather.update)
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newtimer("weather_forecast", timeout, weather.forecast_update)
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return setmetatable(weather, { __index = weather.widget })
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end
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return setmetatable({}, { __call = function(_, ...) return worker(...) end })
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