]> git.madduck.net Git - etc/awesome.git/blob - widgets/weather.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

c684fe22583f51494ebf6d46b1ef8e4384cb693d
[etc/awesome.git] / widgets / weather.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2015, Luke Bonham                     
6                                                   
7 --]]
8
9 local newtimer     = require("lain.helpers").newtimer
10 local read_pipe    = require("lain.helpers").read_pipe
11
12 local async        = require("lain.asyncshell")
13 local json         = require("lain.util").dkjson
14 local lain_icons   = require("lain.helpers").icons_dir
15
16 local naughty      = require("naughty")
17 local wibox        = require("wibox")
18
19 local math         = { floor  = math.floor }
20 local mouse        = mouse
21 local os           = { time   = os.time }
22 local string       = { format = string.format,
23                        gsub   = string.gsub }
24
25 local tonumber     = tonumber
26 local setmetatable = setmetatable
27
28 -- OpenWeatherMap
29 -- current weather and X-days forecast
30 -- lain.widgets.weather
31
32 local function worker(args)
33     local weather               = {}
34     local args                  = args or {}
35     local APPID                 = args.APPID or "3e321f9414eaedbfab34983bda77a66e" -- lain default
36     local timeout               = args.timeout or 900   -- 15 min
37     local timeout_forecast      = args.timeout or 86400 -- 24 hrs
38     local current_call          = args.current_call  or "curl -s 'http://api.openweathermap.org/data/2.5/weather?id=%s&units=%s&lang=%s&APPID=%s'"
39     local forecast_call         = args.forecast_call or "curl -s 'http://api.openweathermap.org/data/2.5/forecast/daily?id=%s&units=%s&lang=%s&cnt=%s&APPID=%s'"
40     local city_id               = args.city_id or 0 -- placeholder
41     local utc                   = args.utc or 0
42     local units                 = args.units or "metric"
43     local lang                  = args.lang or "en"
44     local cnt                   = args.cnt or 5
45     local date_cmd              = args.date_cmd or "date -u -d @%d +'%%a %%d'"
46     local icons_path            = args.icons_path or lain_icons .. "openweathermap/"
47     local notification_preset   = args.notification_preset or {}
48     local notification_text_fun = args.notification_text_fun or
49                                   function (wn)
50                                       local day = string.gsub(read_pipe(string.format(date_cmd, wn["dt"])), "\n", "")
51                                       local tmin = math.floor(wn["temp"]["min"])
52                                       local tmax = math.floor(wn["temp"]["max"])
53                                       local desc = wn["weather"][1]["description"]
54
55                                       return string.format("<b>%s</b>: %s, %d - %d ", day, desc, tmin, tmax)
56                                   end
57     local weather_na_markup     = args.weather_na_markup or " N/A "
58     local followmouse           = args.followmouse or false
59     local settings              = args.settings or function() end
60
61     weather.widget    = wibox.widget.textbox(weather_na_markup)
62     weather.icon_path = icons_path .. "na.png"
63     weather.icon      = wibox.widget.imagebox(weather.icon_path)
64
65     function weather.show(t_out)
66         weather.hide()
67
68         if followmouse then
69             notification_preset.screen = mouse.screen
70         end
71
72         if not weather.notification_text then
73             weather.forecast_update()
74         end
75
76         weather.notification = naughty.notify({
77             text    = weather.current_text .. weather.notification_text,
78             icon    = weather.icon_path,
79             timeout = t_out,
80             preset  = notification_preset
81         })
82     end
83
84     function weather.hide()
85         if weather.notification then
86             naughty.destroy(weather.notification)
87             weather.notification = nil
88         end
89     end
90
91     function weather.attach(obj)
92         obj:connect_signal("mouse::enter", function()
93             weather.show(0)
94         end)
95         obj:connect_signal("mouse::leave", function()
96             weather.hide()
97         end)
98     end
99
100     function weather.forecast_update()
101         local cmd = string.format(forecast_call, city_id, units, lang, cnt, APPID)
102         async.request(cmd, function(f)
103             local pos, err
104             weather_now, pos, err = json.decode(f, 1, nil)
105
106             if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
107                 weather.notification_text = ''
108                 for i = 1, weather_now["cnt"] do
109                     weather.notification_text = weather.notification_text ..
110                                                 notification_text_fun(weather_now["list"][i])
111
112                     if i < weather_now["cnt"] then
113                         weather.notification_text = weather.notification_text .. "\n"
114                     end
115                 end
116             end
117         end)
118     end
119
120     function weather.update()
121         local cmd = string.format(current_call, city_id, units, lang, APPID)
122         async.request(cmd, function(f)
123             local pos, err, icon
124             weather_now, pos, err = json.decode(f, 1, nil)
125             weather.current_text=''
126             if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
127 <<<<<<< HEAD
128                 -- weather icon based on localtime
129                 now     = os.time() - (utc * 3600)
130                 sunrise = tonumber(weather_now["sys"]["sunrise"])
131                 sunset  = tonumber(weather_now["sys"]["sunset"])
132                 icon    = weather_now["weather"][1]["icon"]
133
134                 if sunrise <= now and now <= sunset then
135                     icon = string.gsub(icon, "n", "d")
136 =======
137                 current_dt = os.time()
138                 sunrise = weather_now["sys"]["sunrise"]
139                 sunset  = weather_now["sys"]["sunset"]
140                 if current_dt> sunrise and current_dt> sunset then current_dt = current_dt - 86400 end
141                 if current_dt > sunrise and current_dt < sunset then 
142                     datetime="d"
143 >>>>>>> e3a5dd623700b2cad423c8179141124e6e9b9027
144                 else
145                     icon = string.gsub(icon, "d", "n")
146                 end
147 <<<<<<< HEAD
148
149                 weather.icon_path = icons_path .. icon .. ".png"
150
151 =======
152                 -- error("dt sr:" .. sunrise .. "ss: " .. sunset .. "dt: " .. current_dt .. "d/n: " .. datetime .. "hehe")
153                 icon = weather_now["weather"][1]["icon"]
154                 weather.icon_path = icons_path .. icon:sub(1,2) .. datetime .. ".png"
155 >>>>>>> e3a5dd623700b2cad423c8179141124e6e9b9027
156                 widget = weather.widget
157                 weather.current_text = "Now:" .. weather_now["weather"][1]["description"] .. "\n"
158                 settings()
159             else
160                 weather.icon_path = icons_path .. "na.png"
161                 weather.widget:set_markup(weather_na_markup)
162             end
163
164             weather.icon:set_image(weather.icon_path)
165         end)
166     end
167
168     weather.attach(weather.widget)
169
170     newtimer("weather-" .. city_id, timeout, weather.update)
171     newtimer("weather_forecast-" .. city_id, timeout, weather.forecast_update)
172
173     return setmetatable(weather, { __index = weather.widget })
174 end
175
176 return setmetatable({}, { __call = function(_, ...) return worker(...) end })