1996 Nissan Altima engine light, sputter, changed air filte

I was driving my car and all of the sudden I could feel it was going to die on me, everytime it would put my foot on the break it would sputter so I pulled over and it died. I was able to restart and get it home by driving with my foot on the gas and break (it was only a mile) and the check engine light came on. My mom told me to change the air filter, it was dirty, I did and the car immediately started and I was able to drive it around the block. I drove it to the gas station and put 93 octane in and drove home, the check engine light was still on. The next day I drove it around the block and it stalled, same sputter. I went to drive it to the mechanic the next day the battery was dead, not even lights, competely dead. My friend charged the battery overnight put it back in the car, it sparked a little on the negative terminal, would not start, tried it again same clicking noise, third time was a charm and it started, let it run. Two hours later I drove it a short while, had the same trouble starting it but got it started, went to the store got it started again no problem drove home felt a little sputter but it did not stall. What could be wrong, any idea?