Homemade Salsa

2 (15 oz) cans black beans, drained and rinsed 1 small red onion, finely diced 1 tablespoon olive oil 2 tablespoon red wine vinegar 1 clove garlic, minced 1 (4 oz) can chopped green chiles, with juice 1 small green bell pepper, seeds and veins removed, and minced 1 small onion, finely chopped 3 large ripe tomatoes, diced 1 large avocado, peeled and diced 1 mango, peeled and diced 1/2 cup pineapple chunks 2 limes, juiced