Applescript to switch to first open tab ending with ".swift"

FirstOpenSwiftDoc

set current_document_path to ""

tell application "Xcode"
	set last_word_in_main_window to ".swift"
	if (last_word_in_main_window is "Edited") then
		display notification "Please save the current document and try again"
		-- eventually we could automatically save the document when this becomes annoying
	else
		set current_document to document 1 whose name ends with last_word_in_main_window
		set current_document_path to path of current_document
	end if
end tell

if (current_document_path is not "") then
	tell application "Xcode"
		open current_document_path
	end tell
end if