LineAttributeRule

// This Attribute Rule adds junctions to any end of the line that doesn't already have a point feature in that "network"
// Only set the trigger on Insert (not Update)

//global variables, the feature class you want to insert junctions into, and an empty array of points
var point_class = "Olympia_Utility.DBO.Water_geoNet_Junctions" //***Replace name here
var new_points = [];

//Make variables for all point feature classes you want included
var fitting = FeatureSetByName($datastore, "olympia_utility.DBO.waFitting", ['OBJECTID'], true)  //***Replace name here, make new line of code for each point feature class in "network"
var junction= FeatureSetByName($datastore, "Olympia_Utility.DBO.Water_geoNet_Junctions", ['OBJECTID'], true)  //***Don't forget to include the junction feature class, replace name

//Get the origin and end point of the line (will include spatial reference and z-value automatically)
// first point of the first path of the line
var orig_point = Geometry($feature).paths[0][0]
// last point of the last path of the line
var end_point = Geometry($feature).paths[-1][-1]

//Check to see if the origin point intersects with any of the point feature classes
//If there's no intersections at the line origin with any point feature class, add a junction
When( 
     first(Intersects(orig_point, fitting))!=null, "",  //***Make a new line of code for each point feature class.  Put most common at top
     first(Intersects(orig_point, junction))!=null, "",
     push(new_points, {'geometry': orig_point})
)

//Now do the same for the end point
When( 
     first(Intersects(end_point, fitting))!=null, "",  //***Make a new line of code for each point feature class.  Put most common at top
     first(Intersects(end_point, junction))!=null, "",
     push(new_points, {'geometry': end_point})
)

//These are outside the if/else statements so it'll happen with 0, 1, or 2 junctions
var edit_payload = [{
    'className': point_class,
    'adds': new_points
}]

return {
    "edit": edit_payload
}