At a stoplight my truck was cutting electricity, headlights were flickering and all my lights on my dashboard were flashing, also will not start after idling rough and shutting off?

I have the vehicle listed above, LS model, two door with a manual transmission. Earlier this week I went to start my truck, and everything was fine, it ran for about 10 minutes before I drove it. I was at a stoplight stopped, and my truck was cutting electricity. My headlights were flickering and all my lights on my dashboard were flashing. I gave it some gas and it stopped. I got to work shut off the car and went inside. When I went out it would not start. Later that day I hit the starter with a hammer, and it started but would not run properly. In about 10 minutes (idling) it shut itself off and will not turn on. We replaced the starter since it was smoking and would not disengage. We got it out and replaced it and we decided to turn on the car, it would try to start when the key is not in the start position and my foot not on the clutch. I replaced the ignition lock cylinder and the ignition switch and have also replaced the relay fuse. My battery charges 12.4 volts and I’ve checked all of the wiring underneath my dashboard when I replaced the ignition switch, and I couldn’t find a bad wire.