Am I screwed ?

Started seeing flies in my kitchen but couldn’t figure out where they were coming from so I cleaned the whole kitchen and still couldn’t find the source. Finally went to do dishes tonight and my feet started getting wet. Saw the tiles were a little wet so we picked up a few of them and it seems like the leak has been going on for a while. But nothing under my sink is wet but the pipe is leaking and going straight back and under the cabinet. I personally before me just placed tiles on top of them so went I went to pick them up the floor started to come up too. Does the whole sink and floor need to be replaced now ?