(a) A court of this state shall treat a foreign country as if it were a state of the United States for the purpose of applying this part and Part 2 of this article.

(b) Except as otherwise provided in subsection (c) of this Code section, a child custody determination made in a foreign country under factual circumstances in substantial conformity with the jurisdictional standards of this article must be recognized and enforced under Part 3 of this article.

(c) A court of this state need not apply this article if the child custody law of a foreign country violates fundamental principles of human rights.