import rhinoscriptsyntax as rs
import re
import scriptcontext as sc
import Rhino
import getLayerList

def main():
    rs.EnableRedraw(enable=False)

    topList = []
    topList = sorted(getLayerList.getLayers("3D","3dm"))

    thisLayer = rs.CurrentLayer()

    topList.append("TURN ALL ON")
    destinationLayer = rs.ListBox(topList, "Layer To Activate")



    if not destinationLayer:
        print("No Layer Selected")
        return None

    elif destinationLayer == "TURN ALL ON":
        topList.remove(destinationLayer)
        for layer in topList:
            sc.doc = Rhino.RhinoDoc.ActiveDoc
            rs.LayerVisible(layer, True)
            rs.ExpandLayer(layer, False)

    else:
        topList.remove("TURN ALL ON")
        topList.remove(destinationLayer)
        rs.CurrentLayer(layer = destinationLayer)
        rs.ExpandLayer(destinationLayer, True)
        for layer in topList:
            sc.doc = Rhino.RhinoDoc.ActiveDoc
            rs.LayerVisible(layer, False)
            rs.ExpandLayer(layer, False)

    print(destinationLayer)
    rs.EnableRedraw(enable=True)

if __name__=="__main__":
    main()