Am I entitled to collect unemployment if I resigned for good reasons?

I resigned from my job two weeks ago, I was turned down for a promotion which should have been mine. I worked at this company for two years and have worked my butt off. I was a POS Supervisor incharge of all cashiers, you can ask any of my cashiers and they will tell you that promotion should have been mine. What didnt get me this position I truly believe is I went to their corporate office with some valid complaints, so went over the heads of my bosses which they didnt like. About things such as, theft, Managers sleeping with Associates, Sexual Harrassment, Drug use amongst managers and Associates in the store, unfairness amongst employees, invalid promotions due to liking that person more, the list could go on. I couldnt take the stress anymore so I resigned my position after I didnt get the promotion. My question is, can I collect unemployment? I only worked part-time. I had my telephone interview this morning and she couldnt tell me anything, cause now she will talk to someone with the company that I used to work for. What are my chances in collecting do you feel?