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another attempt to fix weather widget behaviour
[etc/awesome.git] / widgets / weather.lua
diff --git a/widgets/weather.lua b/widgets/weather.lua
index 7673284a61b1ca3b63605eeb78676e7f24717aec..042d1e777c2b3a662993cea2abdbad2a9c7df29c 100644 (file)
--- a/widgets/weather.lua
+++ b/widgets/weather.lua
@@ -7,16 +7,22 @@
 --]]
 
 local newtimer     = require("lain.helpers").newtimer
 --]]
 
 local newtimer     = require("lain.helpers").newtimer
+local read_pipe    = require("lain.helpers").read_pipe
+
 local async        = require("lain.asyncshell")
 local json         = require("lain.util").dkjson
 local lain_icons   = require("lain.helpers").icons_dir
 local async        = require("lain.asyncshell")
 local json         = require("lain.util").dkjson
 local lain_icons   = require("lain.helpers").icons_dir
+
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local math         = { floor  = math.floor }
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local math         = { floor  = math.floor }
+local mouse        = mouse
+local os           = { time   = os.time }
 local string       = { format = string.format,
                        gsub   = string.gsub }
 local string       = { format = string.format,
                        gsub   = string.gsub }
-
+local naughty = require("naughty")
+local tonumber     = tonumber
 local setmetatable = setmetatable
 
 -- OpenWeatherMap
 local setmetatable = setmetatable
 
 -- OpenWeatherMap
@@ -26,34 +32,58 @@ local setmetatable = setmetatable
 local function worker(args)
     local weather               = {}
     local args                  = args or {}
 local function worker(args)
     local weather               = {}
     local args                  = args or {}
+    local APPID                 = args.APPID or "3e321f9414eaedbfab34983bda77a66e" -- lain default
     local timeout               = args.timeout or 900   -- 15 min
     local timeout_forecast      = args.timeout or 86400 -- 24 hrs
     local timeout               = args.timeout or 900   -- 15 min
     local timeout_forecast      = args.timeout or 86400 -- 24 hrs
-    local current_call          = "curl -s 'http://api.openweathermap.org/data/2.5/weather?id=%s&units=%s&lang=%s'"
-    local forecast_call         = "curl -s 'http://api.openweathermap.org/data/2.5/forecast/daily?id=%s&units=%s&lang=%s&cnt=%s'"
-    local city_id               = args.city_id
+    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'"
+    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'"
+    local city_id               = args.city_id or 0 -- placeholder
+    local utc                   = args.utc or 0
     local units                 = args.units or "metric"
     local lang                  = args.lang or "en"
     local units                 = args.units or "metric"
     local lang                  = args.lang or "en"
-    local cnt                   = args.cnt or 7
+    local cnt                   = args.cnt or 5
     local date_cmd              = args.date_cmd or "date -u -d @%d +'%%a %%d'"
     local icons_path            = args.icons_path or lain_icons .. "openweathermap/"
     local date_cmd              = args.date_cmd or "date -u -d @%d +'%%a %%d'"
     local icons_path            = args.icons_path or lain_icons .. "openweathermap/"
-    local w_notification_preset = args.w_notification_preset or {}
+    local notification_preset   = args.notification_preset or {}
+    local notification_text_fun = args.notification_text_fun or
+                                  function (wn)
+                                      local day = string.gsub(read_pipe(string.format(date_cmd, wn["dt"])), "\n", "")
+                                      local tmin = math.floor(wn["temp"]["min"])
+                                      local tmax = math.floor(wn["temp"]["max"])
+                                      local desc = wn["weather"][1]["description"]
+
+                                      return string.format("<b>%s</b>: %s, %d - %d ", day, desc, tmin, tmax)
+                                  end
+    local weather_na_markup     = args.weather_na_markup or " N/A "
+    local followmouse           = args.followmouse or false
     local settings              = args.settings or function() end
 
     local settings              = args.settings or function() end
 
-    weather.widget = wibox.widget.textbox('')
-    weather.icon   = wibox.widget.imagebox()
+    weather.widget    = wibox.widget.textbox(weather_na_markup)
+    weather.icon_path = icons_path .. "na.png"
+    weather.icon      = wibox.widget.imagebox(weather.icon_path)
 
     function weather.show(t_out)
         weather.hide()
 
     function weather.show(t_out)
         weather.hide()
+
+        if followmouse then
+            notification_preset.screen = mouse.screen
+        end
+
+        if not weather.notification_text then
+            weather.forecast_update()
+        end
+
+
         weather.notification = naughty.notify({
             text    = weather.notification_text,
             icon    = weather.icon_path,
             timeout = t_out,
         weather.notification = naughty.notify({
             text    = weather.notification_text,
             icon    = weather.icon_path,
             timeout = t_out,
-            preset  = w_notification_preset
+            preset  = notification_preset
         })
     end
 
     function weather.hide()
         })
     end
 
     function weather.hide()
-        if weather.notification ~= nil then
+        if weather.notification then
             naughty.destroy(weather.notification)
             weather.notification = nil
         end
             naughty.destroy(weather.notification)
             weather.notification = nil
         end
@@ -69,25 +99,16 @@ local function worker(args)
     end
 
     function weather.forecast_update()
     end
 
     function weather.forecast_update()
-        local cmd = string.format(forecast_call, city_id, units, lang, cnt)
+        local cmd = string.format(forecast_call, city_id, units, lang, cnt, APPID)
         async.request(cmd, function(f)
         async.request(cmd, function(f)
-            j = f:read("*a")
-            f:close()
-            weather_now, pos, err = json.decode(j, 1, nil)
+            local pos, err
+            weather_now, pos, err = json.decode(f, 1, nil)
 
 
-            if not err and weather_now ~= nil and tonumber(weather_now["cod"]) == 200 then
+            if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
                 weather.notification_text = ''
                 for i = 1, weather_now["cnt"] do
                 weather.notification_text = ''
                 for i = 1, weather_now["cnt"] do
-                    local f = assert(io.popen(string.format(date_cmd, weather_now["list"][i]["dt"])))
-                    day = string.gsub(f:read("a"), "\n", "")
-                    f:close()
-
-                    tmin = math.floor(weather_now["list"][i]["temp"]["min"])
-                    tmax = math.floor(weather_now["list"][i]["temp"]["max"])
-                    desc = weather_now["list"][i]["weather"][1]["description"]
-
                     weather.notification_text = weather.notification_text ..
                     weather.notification_text = weather.notification_text ..
-                                                string.format("<b>%s</b>: %s, %d - %d  ", day, desc, tmin, tmax)
+                                                notification_text_fun(weather_now["list"][i])
 
                     if i < weather_now["cnt"] then
                         weather.notification_text = weather.notification_text .. "\n"
 
                     if i < weather_now["cnt"] then
                         weather.notification_text = weather.notification_text .. "\n"
@@ -98,28 +119,59 @@ local function worker(args)
     end
 
     function weather.update()
     end
 
     function weather.update()
-        local cmd = string.format(current_call, city_id, units, lang)
+        local cmd = string.format(current_call, city_id, units, lang, APPID)
+        local utc_midnight_cmd   = string.format("date -u -d 'today 00:00:00' +'%%s'")
+        local local_midnight_cmd = string.format("date -d 'today 00:00:00' +'%%s'")
+
         async.request(cmd, function(f)
         async.request(cmd, function(f)
-            j = f:read("*a")
-            f:close()
-            weather_now, pos, err = json.decode(j, 1, nil)
-
-            if err then
-                weather.widget.set_text("N/A")
-                weather.icon:set_image(icons_path .. "na.png")
-            elseif tonumber(weather_now["cod"]) == 200 then
-                weather.icon_path = icons_path .. weather_now["weather"][1]["icon"] .. ".png"
-                weather.icon:set_image(weather.icon_path)
+            local pos, err, icon
+            weather_now, pos, err = json.decode(f, 1, nil)
+
+            if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
+                -- weather icon based on localtime
+                now                  = os.time()
+                local utc_midnight   = string.gsub(read_pipe(utc_midnight_cmd), "\n", "")
+                local local_midnight = string.gsub(read_pipe(local_midnight_cmd), "\n", "")
+             
+                if utc > 0 then -- we are to the East from GMT
+                    if tonumber(local_midnight) >= tonumber(utc_midnight) then -- we are 1 day after the GMT, so have to return 1 day back
+                       now = now - 86400
+                    end
+                end
+
+                if utc < 0 then -- we are to the West from GMT
+                    if tonumber(local_midnight) <= tonumber(utc_midnight) then -- we are 1 day before the GMT
+                       now = now + 86400
+                    end
+                end
+                -- if utc==0 leave it as is
+                local sunrise = tonumber(weather_now["sys"]["sunrise"])
+                local sunset  = tonumber(weather_now["sys"]["sunset"])
+                local icon    = weather_now["weather"][1]["icon"]
+
+                if sunrise <= now and now <= sunset then
+                    icon = string.gsub(icon, "n", "d")
+                else
+                    icon = string.gsub(icon, "d", "n")
+                end
+
+                weather.icon_path = icons_path .. icon .. ".png"
+
                 widget = weather.widget
                 settings()
                 widget = weather.widget
                 settings()
+            else
+                weather.icon_path = icons_path .. "na.png"
+                weather.widget:set_markup(weather_na_markup)
             end
             end
+
+            weather.icon:set_image(weather.icon_path)
         end)
     end
 
     weather.attach(weather.widget)
 
         end)
     end
 
     weather.attach(weather.widget)
 
-    newtimer("weather", timeout, weather.update)
-    newtimer("weather_forecast", timeout, weather.forecast_update)
+    newtimer("weather-" .. city_id, timeout, weather.update)
+    newtimer("weather_forecast-" .. city_id, timeout, weather.forecast_update)
 
     return setmetatable(weather, { __index = weather.widget })
 end
 
     return setmetatable(weather, { __index = weather.widget })
 end
awesome window-manager configuration

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