Create an Expert Advisor based on ZigZag indicator

Hello,

1. This EA will be based on ZigZag indicator to obtain a chart like the one shown in "Image 1".

• The “Depth” is the first set up of the technical indicator Zigzag. It is the minimum number of bars without a second maximum or minimum deviation of the bar (example: if we have a maximum in candle x, and the depth is 12, it won’t be able to draw the following maximum until at least x+12 candles). 
• The “Deviation” is the percentage once the previous maximum or minimum is formed (example: if we have a stretch of 100 points from the minimum to the maximum, and the deviation is 5, it will start to draw the bearish stretch when at least 5% of the stretch is corrected). 
• The “Backstep” is the last set up and it reflects the minimum amount of bars between which the maximums and minimums can be drawn (example: if we have a maximum in the candle x, and the backstep is 3, it won’t be able to draw the next stretch of minimum until the next x+3 candles). 

2. Each time a "peak" is created:

• If the price is below the value of the price at that peak, a buy stop will be placed at the value of the price at the peak (you can see it on "Image2").
• If the price is above the value of that peak, a sell stop will be placed at the value of the price at the peak (you can see it on "Image 2"). 

3. The adjustable parameters of the EA must be the following:

• "Depth".
• "Deviation".
• "Backstep".
• (Please let me know if there is any more because of the indicator).
• "Autolot" as percentage of the account, based on the distance between the entry point and SL. 
• "TP" in points. 
• "SL" in points. 
• "Trailing start" in points, is when the trailing stop will start working.
• "Trailing step" in points, is the value of trailing stop to which it will move the trailing stop.
• "Start trading" is the time that the EA will start trading. 
• "Stop trading" is the time that the EA will stop trading.

4. Others.

• The EA should work for any pair and any time frame. 
• One trade at time allowed.
• The code must have comments to be able to modify it in the future.
• Unexecuted buy stops and sell stops will not be deleted.

Thank you very much.