#!/usr/bin/env python3

import cadquery as cq
from cadquery import exporters


camera_width = 43.4 + 0.5
camera_height = 6

cutout_width = 18 - 0.5
cutout_length = 21.5 - 0.5
cutout_straight_length = 16 - 0.5

bracket_width = cutout_length
bracket_thickness = 3

bolt_hole_diameter = 3.4
bolt_hole_spacing = 10
bolt_offset_y = 9.35  # derived from bolt spacing from edge
bolt_tab_width = bolt_hole_diameter * 3


corner_radius = 1


result = (
    cq
    .Workplane("front")
    .box(camera_width + bracket_thickness * 2, bracket_width, camera_height + bracket_thickness)
    .faces(">Y")
      .workplane()
      .move(yDist=-bracket_thickness / 2)
      .rect(camera_width, camera_height, True)
      .cutThruAll()
    .faces("<Z[1]")
      .edges("<Y")
      .workplane(centerOption="CenterOfMass")
      .transformed(rotate=(0, 0, 180))
      .center(-cutout_width/2, 0)
      .lineTo(0, cutout_straight_length)
      .threePointArc((cutout_width / 2, cutout_length), (cutout_width, cutout_straight_length))
      .lineTo(cutout_width, 0)
      .close()
      .extrude(camera_height)
    .faces(">X")
      .vertices("<Y and <Z")
      .workplane(centerOption="CenterOfMass")
      .rect(bracket_width, bracket_thickness, centered=False)
      .extrude(bolt_tab_width)
    .faces("<Z[1]")
      .edges("<X and <Y")
      .workplane(centerOption="CenterOfMass")
      .center(bolt_tab_width / 2, -bolt_offset_y)
      .rarray(1, bolt_hole_spacing, 1, 2)
      .hole(bolt_hole_diameter)
    .edges("|Z or >Z").fillet(corner_radius)
    .faces(">Z[1]").edges(">X or <X or >Y").fillet(corner_radius)
)

exporters.export(result, 'camera-bracket.stl')