refac(prog/xmonad/xmobar): better styles for diff

programs/xmonad/xmobar/scripts/cbr.sh

@@ -14,20 +14,12 @@ cc=($(curl --no-progress-meter "https://www.cbr.ru/scripts/XML_dynamic.asp?date_
   sed -e "s/,/./g"))
 
 diff=$(echo ${cc[-2]} ${cc[-1]} | awk '{ print $1 - $2 }')
+color='#50fa7b'
+if [ ${diff:0:1} == '-' ]; then
+  color='#ff5555'
+fi
 
-case $1 in
-  "diff")
-    echo $diff
-    ;;
-
-  "cur")
-    echo ${cc[-1]}
-    ;;
-
-  *)
-    echo "${cc[-1]} ($diff)"
-    ;;
-esac
+echo "${cc[-1]} (<fc=${color}>$diff</fc>)"
 
 exit 0
 

programs/xmonad/xmobar/src/xmobar.hs

@@ -52,7 +52,7 @@ config n = defaultConfig
   , alignSep = "}{"
   , template = "%XMonadLog%"
             <> "} %date% <hspace=60/> %multicpu% | %memory% * %swap% | %wlxd03745e1e87bwi%"
-            <> "{ <fn=1>USD</fn> %usdrub% (" <> green "%usdrubdiff%" <> ") <hspace=3/> Vol: %volume% <fn=1><box> %kbd% </box> <fc=#ee9a00>%time%</fc></fn>"
+            <> "{ <fn=1>USD</fn> %usdrub% <hspace=3/> Vol: %volume% <fn=1><box> %kbd% </box> <fc=#ee9a00>%time%</fc></fn>"
   }
 
 myCommands :: [Runnable]
@@ -86,8 +86,7 @@ myCommands =
         ]
         (10 `seconds`)
   , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/get_volume.sh"] "N/A" "volume" 1
-  , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/cbr.sh cur"] "N/A" "usdrub" (60 `seconds`)
-  , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/cbr.sh diff"] "N/A" "usdrubdiff" (60 `seconds`)
+  , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/cbr.sh"] "N/A" "usdrub" (60 `seconds`)
   , Run XMonadLog
   ]
   where