Law / Starting a coffee shop in Poland [14]

I've got an idea to start a coffee shop in a major town in Poland and apart from the obvious like renting a place, doing my homework about location and market research I wanted to know what certificates you need as regards licenses for serving food, operating a kitchen, health and safety, serving alcohol etc.

I plan to serve food (soups, cakes, sandwiches etc) and have evening functions which would include selling alcohol and hosting small music gigs.

Many thanks in advance.