You asked: What happens if someone destroys your village in clash of clans?

You lose resources, depending on how much the attacker “destroys”. If the attacker destroys everything, you can lose up to a maximum of 50% of Elixir/Gold in your collectors, 100% of Elixir/Gold in your Town Hall, and 10-20% of Elixir/Gold in your storage containers depending on your Town Hall level.