No electrical at all
You have obviously created a short. how and why is beyond me, were you playing around with the wiring? before any of these 'sparks' came to be?
thnigs you will need to work with electricty.. test light, volt meter and electrical tape(a comment temporary fix. i can guide you on properly fixing it later)
You will need to test your battery, make sure it works and there is power in the battery..11-12volts anything below that and you should have it fully charged. next is there voltage going to your.. regulator? starter? ballist? ignition?
you have to start at the root of the problem, electrical situations can vary in how they will be fixed and how they started. normally no one gets the whole story when they get asked to fix them.
You also need to know why you had sparks or else you will be fixing the problem for no reason. ie.. if you fix it it shorts out again you will need to fix it again. Thus, try to figure out why you sparked. where the short was and fix that. then find replace and fix the burnt or damaged wiring.
Sorry i cant be of more help but in all honesty elctrical problems suck and its going to be a stressful event from start to finish.