youtube.lua show the duration

plugins/youtube.lua

@@ -4,13 +4,52 @@ local BASE_URL = 'https://www.googleapis.com/youtube/v3'
 
 function get_yt_data (yt_code)
   local apikey = cred_data.google_apikey
-  local url = BASE_URL..'/videos?part=snippet,statistics&key='..apikey..'&id='..yt_code..'&fields=items(snippet(channelTitle,localized(title,description)),statistics(viewCount,likeCount,dislikeCount,commentCount))'
+  local url = BASE_URL..'/videos?part=snippet,statistics,contentDetails&key='..apikey..'&id='..yt_code..'&fields=items(snippet(channelTitle,localized(title,description)),statistics(viewCount,likeCount,dislikeCount,commentCount),contentDetails(duration))'
   local res,code  = https.request(url)
   if code ~= 200 then return "HTTP-FEHLER" end
   local data = json:decode(res).items[1]
   return data
 end
 
+local function convertISO8601Time(duration)
+	local a = {}
+
+	for part in string.gmatch(duration, "%d+") do
+	   table.insert(a, part)
+	end
+
+	if duration:find('M') and not (duration:find('H') or duration:find('S')) then
+		a = {0, a[1], 0}
+	end
+
+	if duration:find('H') and not duration:find('M') then
+		a = {a[1], 0, a[2]}
+	end
+
+	if duration:find('H') and not (duration:find('M') or duration:find('S')) then
+		a = {a[1], 0, 0}
+	end
+
+	duration = 0
+
+	if #a == 3 then
+		duration = duration + tonumber(a[1]) * 3600
+		duration = duration + tonumber(a[2]) * 60
+		duration = duration + tonumber(a[3])
+	end
+
+	if #a == 2 then
+		duration = duration + tonumber(a[1]) * 60
+		duration = duration + tonumber(a[2])
+	end
+
+	if #a == 1 then
+		duration = duration + tonumber(a[1])
+	end
+
+	return duration
+end
+
 function send_youtube_data(data, receiver)
   local title = data.snippet.localized.title
   -- local description = data.items[1].snippet.localized.description
@@ -19,8 +58,15 @@ function send_youtube_data(data, receiver)
   local likeCount = data.statistics.likeCount
   local dislikeCount = data.statistics.dislikeCount
   local commentCount = data.statistics.commentCount
+  local totalseconds = convertISO8601Time(data.contentDetails.duration)
 
-  local text = title..'\n(Hochgeladen von: '..uploader..', '..viewCount..' mal angesehen, '..likeCount..' Likes und '..dislikeCount..' Dislikes, '..commentCount..' Kommentare)\n'
+  -- convert s to mm:ss
+  local seconds = totalseconds % 60
+  local minutes = math.floor(totalseconds / 60)
+  local minutes = minutes % 60
+  local duration = string.format("%02d:%02d",  minutes, seconds)
+  
+  local text = title..'\n(Hochgeladen von: '..uploader..', '..viewCount..' mal angesehen, '..duration..' Minuten, '..likeCount..' Likes und '..dislikeCount..' Dislikes, '..commentCount..' Kommentare)\n'
   send_msg(receiver, text, ok_cb, false)
 end
 
@@ -33,7 +79,7 @@ end
 
 return {
   description = "Sendet YouTube-Info.", 
-  usage = {"youtube.com/watch Link","youtu.be Link"},
+  usage = "",
   patterns = {
     "youtu.be/([A-Za-z0-9-_-]+)",
     "youtube.com/watch%?v=([A-Za-z0-9-_-]+)",