Fried Portuguese Sardines with Harissa Tomato Sauce

Name: Fried Portuguese Sardines with Harissa Tomato Sauce
Ingredients: 1 120-gram tins of portuguese sardines, preferably in olive oil, but any kind will do; ½ cup of flour; Olive oil for; Frying salt; 1 200-gram can of chair de tomate, or diced canned tomatoes; 1 tablespoon of tomato paste; 1 tablespoon of sundried tomato paste; 1 tablespoon of harissa 1 tablespoon of herbs de provence; 1 teaspoon of garlic paste, or 1 clove of garlic; Pinch of chili flakes; Pinch of salt; ½ lemon, cut into slices for squirting on the fish