Moving Average Cross

I have a idea that i been working of or awhile. Everyone knows about golden crosses and death crosses (crossing of 50 SMA and the 200 SMA). I would like to have a code that plots the 2 SMA's lines on the chart. Also painting the bars red for down for death cross, paint bar green for golden cross. I would also like to have an arrow with the words paint on the chart (death cross or golden cross). I would also like to have label boxes that will color green after a golden cross and red after death cross. I would like the boxes to change colors based upon the last cross.