revert a5b05fa; #310

[etc/awesome.git] / widget / weather.lua

diff --git a/widget/weather.lua b/widget/weather.lua
index 17fc4d7b2e72a861b115a13adaf39ae4b65cbe05..b2ccc192d6df52ddd9c387b7d233ee3b09f226d7 100644 (file)
--- a/widget/weather.lua
+++ b/widget/weather.lua
@@ -11,12 +11,8 @@ local json     = require("lain.util").dkjson
 local focused  = require("awful.screen").focused
 local naughty  = require("naughty")
 local wibox    = require("wibox")
-local math     = { floor  = math.floor }
-local os       = { time   = os.time,
-                   date   = os.date }
-local string   = { format = string.format,
-                   gsub   = string.gsub }
-local tonumber = tonumber
+
+local math, os, string, tonumber = math, os, string, tonumber
 
 -- OpenWeatherMap
 -- current weather and X-days forecast
@@ -31,6 +27,11 @@ local function factory(args)
     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_offset            = args.utc_offset or
+                                  function ()
+                                      local now = os.time()
+                                      return os.difftime(now, os.time(os.date("!*t", now))) + ((os.date("*t").isdst and 1 or 0) * 3600)
+                                  end
     local units                 = args.units or "metric"
     local lang                  = args.lang or "en"
     local cnt                   = args.cnt or 5
@@ -116,10 +117,20 @@ local function factory(args)
             weather_now, pos, err = json.decode(f, 1, nil)
 
             if not err and type(weather_now) == "table" and tonumber(weather_now["cod"]) == 200 then
-                local now     = os.time(os.date("!*t"))
                 local sunrise = tonumber(weather_now["sys"]["sunrise"])
                 local sunset  = tonumber(weather_now["sys"]["sunset"])
                 local icon    = weather_now["weather"][1]["icon"]
+                local now     = os.time()
+                local loc_m   = os.time { year = os.date("%Y"), month = os.date("%m"), day = os.date("%d"), hour = 0 }
+                local offset  = utc_offset()
+                local utc_m   = loc_m - offset
+
+                -- if we are 1 day after the GMT, return 1 day back, and viceversa
+                if offset > 0 and (now - utc_m) >= 86400 then
+                    utc_m = utc_m + 86400
+                elseif offset < 0 and (utc_m - now) >= 86400 then
+                    utc_m = utc_m - 86400
+                end
 
                 if sunrise <= now and now <= sunset then
                     icon = string.gsub(icon, "n", "d")