Brake master cylinder?

I have a 2000 Tacoma 4wd 6cyl standard.... Brakes got funny and when having to apply them to avoid accident the truck went sideways.... Had a problem w driver side disc wore out replaced front brakes a year ago... So i got new front brake pads and there was hardly any wear on the old ones...replaced them anyway after all that the brake pedal goes to the floor and wont pump up....try and bleed them and no fluid coming out of bleeders on either front sides.... there is no leaks anywere front or back..