"""Through-hole PCB relay: Omron G2RL-2, G5V-1, G5V-2, G6A and G6AK. A closed case on the XY plane with the pins down through the board.
Pin 1 is at the origin; the pins are placed as the maker's bottom-view PCB layout draws them, seen from above (the layout turned over
about its horizontal axis): along it to +X, its next row towards +Y. Dimensions from the makers' data sheets in the README."""
from steve import Model

kind = "G6A"  # Relay type

# kind: (case length along X, width along Y, height above the board; solder pin length below the board, pin across X, pin across Y;
# pin 1 from the case's -X end, from its -Y side; pins (x, y) from pin 1). The case sizes are the data sheets' average values.
# Omron G2RL, Cat. No. J117-E1-17, Dimensions p. 6, G2RL-2: 29 max. (28.8 average) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long,
#   0.5 x 0.8; PCB mounting holes (bottom view): columns at 0, 15, 20, 25 (20 from pin 1 to the third, 5 apart), rows 7.5 apart, (2.3) from
#   the case end and (2.5) from its side. Weight approx. 12 g (p. 2).
# Omron G5V-1, Cat. No. K048-E1-07, Dimensions p. 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5 long, 0.5 x 0.3;
#   holes at 0, 2.54 and 10.16, rows 5.08 apart, (1.07) and (1.11) from the case. Weight approx. 2 g.
# Omron G5V-2, Cat. No. K046-E1-06, Dimensions p. 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5 long,
#   0.5 x 0.3; holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.3) and (1.2) from the case. Weight approx. 5 g.
# Omron G6A, Cat. No. K020-E1-15, Dimensions p. 8: 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 x 0.3;
#   G6A-274P: holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.2) from the case; G6AK-274P (double-winding latching): also at 2.54,
#   ten holes. Weight approx. 3.5 g (p. 2).
RELAYS = {
    "G2RL-2": (28.8, 12.5, 15.5, 3.5, 0.5, 0.8, 2.3, 2.5, ((0, 0), (15, 0), (20, 0), (25, 0), (0, 7.5), (15, 7.5), (20, 7.5), (25, 7.5))),
    "G5V-1": (12.3, 7.3, 9.9, 3.5, 0.5, 0.3, 1.07, 1.11, ((0, 0), (2.54, 0), (10.16, 0), (0, 5.08), (2.54, 5.08), (10.16, 5.08))),
    "G5V-2": (20.3, 9.9, 11.4, 3.5, 0.5, 0.3, 1.3, 1.2,
              ((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
    "G6A": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,
            ((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
    "G6AK": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,
             ((0, 0), (2.54, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (2.54, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
}
# Proportions (the data sheets don't dimension the inside): the case is a cover WALL thick over a base plate as thick; the coil, core and contacts inside are one
# copper block filling FILL of the space inside the case, standing on its floor, so that the mass comes out near the data sheets' weights.
WALL = 0.5
FILL = 0.27

if kind not in RELAYS:
    raise ValueError(f"no relay {kind!r}: {', '.join(RELAYS)}")
length, width, height, pin_length, pin_x, pin_y, from_end, from_side, pins = RELAYS[kind]
# Pin 1's place in the case: the PCB layouts' bracketed distances from pin 1 to the case's end and side (the far end takes what's left
# of the average case size).
x0 = -from_end
y0 = -from_side

model = Model()
# The case: a cover, open underneath, over a base plate WALL thick that closes it.
model.box("case", length, width, height, at=(x0 + length / 2, y0 + width / 2, height / 2), op="new", body="case_body", name="Cover")
inner = (length - 2 * WALL, width - 2 * WALL, height - 2 * WALL)
model.box("inside", inner[0], inner[1], height - WALL, at=(x0 + length / 2, y0 + width / 2, (height - WALL) / 2), op="cut", body="case_body",
          name="Inside")
model.box("base", inner[0], inner[1], WALL, at=(x0 + length / 2, y0 + width / 2, WALL / 2), op="new", body="base_body", name="Base")
scale = FILL ** (1 / 3)
core = (inner[0] * scale, inner[1] * scale, inner[2] * scale)
model.box("coil", core[0], core[1], core[2], at=(x0 + length / 2, y0 + width / 2, WALL + core[2] / 2), op="new", body="coil_body",
          name="Coil and contacts")
pin_bodies = []
for i, (x, y) in enumerate(pins):
    model.box(f"pin_{i + 1}", pin_x, pin_y, pin_length, at=(x, y, -pin_length / 2), op="new", body=f"pin_{i + 1}_body", name=f"Pin {i + 1}")
    pin_bodies.append(f"pin_{i + 1}_body")
# Materials, for looks and a rough mass (the data sheets name none): a black plastic case (pa6), the inside copper, tin-plated pins.
model.material("pa6", bodies=["case_body", "base_body"], color="#1d1e20")
model.material("copper", bodies=["coil_body"], color="#b87333")
model.material("copper", bodies=pin_bodies, color="#c9cbc8")
result = model.result()