The USA never had Iran, Pakistan or Iraq as real friends. Turkey is going by way of their Moslem bretherin; Turkey in the long run will lose. Iran has trouble from within and has alienated its Sunni neighbors and has one resource holding it up: oil. China will sell destabilizing arms to whoever will buy them and Turkey will and has antagonized Israel and the US & the EU to a degree. I would not consider these actions any benefit to Turkey. Iran and China can't help Turkey's economy. They can only sell Turkey guns that are not necessary. Peace with the PKK might help.
Gunmen kill 1, wound 13 at Sri Lanka election campaign (AP)
from the article: Growing ties between Turkey, China, Iran worry Israel and U.S.