Multiple plugins in one message

plugins/stats.lua

@@ -1,12 +1,56 @@
-function run(msg, matches)
-	vardump(_users)
+function update_user_stats(msg)
+  -- Save user to _users table
+  local from_id = tostring(msg.from.id)
+  local to_id = tostring(msg.to.id)
+  local user_name = get_name(msg)
+  print ('New message from '..user_name..'['..to_id..']'..'['..from_id..']')
+  -- If last name is nil dont save last_name.
+  local user_last_name = msg.from.last_name
+  local user_print_name = msg.from.print_name
+  if _users[to_id] == nil then
+    _users[to_id] = {}
+  end
+  if _users[to_id][from_id] == nil then
+    _users[to_id][from_id] = {
+      name = user_name,
+      last_name = user_last_name,
+      print_name = user_print_name,
+      msg_num = 1
+    }
+  else
+    local actual_num = _users[to_id][from_id].msg_num
+    _users[to_id][from_id].msg_num = actual_num + 1
+    -- And update last_name
+    _users[to_id][from_id].last_name = user_last_name
+  end
+end
+
+function load_user_stats()
+  local f = io.open('res/users.json', "r+")
+  -- If file doesn't exists
+  if f == nil then
+    f = io.open('res/users.json', "w+")
+    f:write("{}") -- Write empty table
+    f:close()
+    return {}
+  else
+    local c = f:read "*a"
+    f:close()
+    return json:decode(c)
+  end
+end
+
+function save_stats()
 	-- Save stats to file
 	local json_users = json:encode_pretty(_users)
 	vardump(json_users)
 	file_users = io.open ("./res/users.json", "w")
 	file_users:write(json_users)
 	file_users:close()
+end
 
+function get_stats_status( msg )
+	-- vardump(_users)
 	local text = ""
   	local to_id = tostring(msg.to.id)
 
@@ -17,12 +61,29 @@ function run(msg, matches)
 			text = text..user.name.." "..user.last_name.." ["..id.."]: "..user.msg_num.."\n"
 		end
 	end
+	print("usuarios: "..text)
 	return text
 end
 
+function run(msg, matches)
+	-- TODO: I need to know wich patterns matches.
+	if matches[1] == "!stats" then
+		return get_stats_status(msg)
+	else 
+		print ("update stats")
+		update_user_stats(msg)
+	end
+end
+
+-- TODO: local vars
+_users = load_user_stats()
+
 return {
     description = "Numer of messages by user", 
     usage = "!stats",
-    patterns = {"^!stats"}, 
+    patterns = {
+        ".*",
+    	"^!stats"
+    	}, 
     run = run 
 }