Saleh Marmash

Is there any documentation for metin2 Developement? Like where to find important stuff like items_proto , refine proto, etc.. I've started developing my first metin2 server today, and I was suffering from hell to find everything by myself (already added a new weapon from +0 to +9 with different specs and attack damage) , but I still need a general documentation for everything if someone made one, Thx in advance !