"""PCB screw terminal block, Phoenix Contact MKDS 1,5 type, 5.0 or 5.08 mm pitch, 2 to 16 positions. Pin 1 is at the origin, the row along +X, the housing on
the XY plane, the wire entries facing -Y, the screws on top, the solder pins down through the board. Dimensions from Phoenix Contact's data sheet in the README."""
from steve import Model

pitch = 5.08  # mm Pitch
positions = 2  # Positions
detail = "full"  # full: wire entries, screw heads and solder pins; simple: the housing's outline

# Phoenix Contact data sheet, PCB terminal block MKDS 1,5/ 2-5,08 (1715721), Dimensions p. 4 and Dimensional drawing p. 8: width a + pitch, height 13.8 above
# the board, length 9.8, solder pins 3.5 long, 0.9 x 0.9, 4.6 from the wire-entry face. The drawing gives the same housing for 5.0 and 5.08 mm pitch.
HEIGHT, LENGTH, PIN_LENGTH, PIN, PIN_FROM_FRONT = 13.8, 9.8, 3.5, 0.9, 4.6
if pitch not in (5.0, 5.08) or not 2 <= positions <= 16:
    raise ValueError("MKDS 1,5 comes in 5.0 and 5.08 mm pitch, 2 to 16 positions.")

width = positions * pitch
x0 = -pitch / 2
front = -PIN_FROM_FRONT
# the side profile: the step at the top of the wire-entry face and the sloped back are proportions, for looks
profile = [(front, 0), (front + LENGTH, 0), (front + LENGTH, 0.72 * HEIGHT), (front + 0.75 * LENGTH, HEIGHT), (front + 0.25 * LENGTH, HEIGHT), (front + 0.25 * LENGTH, 0.8 * HEIGHT), (front, 0.8 * HEIGHT)]
model = Model()
model.plane("side_plane", on="YZ", offset=x0, name="Side")
with model.sketch("body_sketch", on="side_plane", name="Housing") as sk:
    sk.polyline("body_outline", profile, closed=True)
model.extrude("body", "body_sketch", distance=width, name="Housing")
if detail == "full":
    entry, screw = 0.6 * pitch, 0.55 * pitch   # the wire entry and screw head sizes are proportions, for looks
    model.plane("front_plane", on="XZ", offset=-front, name="Wire entries")
    with model.sketch("entries_sketch", on="front_plane", name="Wire entries") as sk:
        for i in range(positions):
            sk.rect(f"entry_{i}", (i * pitch - entry / 2, 0.25 * HEIGHT), (i * pitch + entry / 2, 0.25 * HEIGHT + entry))
    model.extrude("entries", "entries_sketch", distance=-0.55 * LENGTH, op="cut", name="Wire entries")
    model.plane("top_plane", on="XY", offset=HEIGHT, name="Top")
    with model.sketch("screws_sketch", on="top_plane", name="Screw openings") as sk:
        for i in range(positions):
            sk.circle(f"screw_{i}", (i * pitch, front + 0.5 * LENGTH), screw / 2)
    model.extrude("screws", "screws_sketch", distance=-0.15 * HEIGHT, op="cut", name="Screw openings")
    model.plane("pin_plane", on="XY", offset=-PIN_LENGTH, name="Solder pins")
    with model.sketch("pins_sketch", on="pin_plane", name="Solder pins") as sk:
        for i in range(positions):
            sk.rect(f"pin_{i}", (i * pitch - PIN / 2, -PIN / 2), (i * pitch + PIN / 2, PIN / 2))
    model.extrude("pins", "pins_sketch", distance=PIN_LENGTH + 1, name="Solder pins")
model.material("pa6", color="#2f7d4a")
result = model.result()