$fn=64;

// --- Parameters ---
// Wall Plate Dimensions
wall_plate_width = 40;
wall_plate_thickness = 8;
wall_plate_up = 40;     // Extension above the arm
wall_plate_down = 90;   // Extension below the arm

// Arm Dimensions
arm_length = 130;       // Distance from wall to center of hanging hole
arm_thickness = 10;
arm_base_width = 40;    // Width of arm at the wall

// Hanging End Dimensions
hang_ring_od = 45;      // Outer diameter of the hanging end
hang_hole_id = 20;      // Inner diameter for suspending PlantStack

// Gusset (Diagonal Support)
gusset_thickness = 8;
gusset_length = 90;     // How far it extends under the arm
gusset_height = 50;     // How far it extends down the wall plate

// Mounting Holes
top_screw_z = 20;
bottom_screw_z = -70;
screw_hole_d = 5.5;     // Clearance for M5 or #10 screw
screw_head_d = 12;      // Countersink diameter
cs_depth = 4;           // Countersink depth

// --- Module ---
module plantstack_bracket() {
    difference() {
        // Main Body
        union() {
            // Wall Plate
            translate([-wall_plate_thickness, 0, 0]) {
                hull() {
                    translate([0, 0, wall_plate_up - wall_plate_width/2])
                        rotate([0, 90, 0])
                            cylinder(d=wall_plate_width, h=wall_plate_thickness);
                    translate([0, 0, -wall_plate_down + wall_plate_width/2])
                        rotate([0, 90, 0])
                            cylinder(d=wall_plate_width, h=wall_plate_thickness);
                }
            }

            // Horizontal Arm (embedded slightly into wall plate for manifoldness)
            hull() {
                translate([-1, -arm_base_width/2, -arm_thickness])
                    cube([1, arm_base_width, arm_thickness]);
                translate([arm_length, 0, -arm_thickness])
                    cylinder(d=hang_ring_od, h=arm_thickness);
            }

            // Support Gusset (embedded slightly into wall plate)
            translate([0, gusset_thickness/2, -arm_thickness - gusset_height])
                rotate([90, 0, 0])
                    linear_extrude(height=gusset_thickness)
                        polygon([
                            [-1, 0],
                            [-1, gusset_height],
                            [gusset_length, gusset_height]
                        ]);
        }

        // --- Subtractions ---
        
        // Hanging Hole
        translate([arm_length, 0, -arm_thickness - 1])
            cylinder(d=hang_hole_id, h=arm_thickness + 2);

        // Top Mounting Hole
        translate([0, 0, top_screw_z]) {
            // Screw shaft
            translate([-wall_plate_thickness - 1, 0, 0])
                rotate([0, 90, 0])
                    cylinder(d=screw_hole_d, h=wall_plate_thickness + 2);
            // Countersink
            translate([-cs_depth, 0, 0])
                rotate([0, 90, 0])
                    cylinder(d1=screw_hole_d, d2=screw_head_d, h=cs_depth + 0.01);
        }

        // Bottom Mounting Hole
        translate([0, 0, bottom_screw_z]) {
            // Screw shaft
            translate([-wall_plate_thickness - 1, 0, 0])
                rotate([0, 90, 0])
                    cylinder(d=screw_hole_d, h=wall_plate_thickness + 2);
            // Countersink
            translate([-cs_depth, 0, 0])
                rotate([0, 90, 0])
                    cylinder(d1=screw_hole_d, d2=screw_head_d, h=cs_depth + 0.01);
        }
    }
}

// Render the bracket
plantstack_bracket();