Trendline Indicator (Regression Channel and Std Deviation Channel)

I would like a MT5 indicator to draw trendlines based on either the built-in Regression Channel or Std Deviation Channel. This indicator must have buffers. I do not have the source code, or any pseudo code, to begin with

The channels need to automatically update based on the starting bar and number of bars

The indicator options should include:
-Type of Channel
-starting bar number
-number of bars for calculation of the indicator
-min number of points OR minimum angle for direction calculation
-Draw on chart? (true/false boolean)

The indicator should output the following buffers in the data window for query by an EA:
-Top
-Middle
-Bottom
-Direction (this should be a single numerical value)
-Direction difference in points/the angle
-Current Angle/points for the current direction

For the direction, if the range between top/bottom is less than the min number of points/min angle for direction, it should be considered a flat market:
bullish = 1
bearish = -1
flat = 0