include <parameters.scad>

use <connector.scad>
use <nipple.scad>
use <rail.scad>
use <screw_hole.scad>

module back_connector_half(
  border_side = false,
  border_top = false,
  border_bottom = false
) difference() {
  connector_half(border_side, border_top, border_bottom);

  if (!border_side)
    translate([tray_width/2 - bar_thickness, 0, tray_height - bar_thickness/2])
    rotate([-90, 0, 0])
    screw_hole(nut_depth = 1.1 * nut_height);
}

module back_connector(
  border_left   = false,
  border_right  = false,
  border_top    = false,
  border_bottom = false
) {
  difference() {
    connector(border_left, border_right, border_top, border_bottom) {
        mirror() back_connector_half(border_left,  border_top, border_bottom);
                 back_connector_half(border_right, border_top, border_bottom);
    }

  // screw holes for PCB screws
  for (h = [bar_thickness/2, tray_height - bar_thickness/2])
    translate([0, 0, h])
    rotate([-90, 0, 0])
    screw_hole(nut_depth = 1.1 * nut_height);
  }
}

back_connector();

echo("MODEL INFO: tray height = ", tray_height);
echo("MODEL INFO: tray width = ",  tray_width);