import board

from kmk.matrix import DiodeOrientation
from kmk.matrix import intify_coordinate as ic
from kmk.keyboard_config import KeyboardConfig as _KeyboardConfig

# Implements what used to be handled by KeyboardConfig.swap_indicies for this
# board, by flipping various row3 (bottom physical row) keys so their
# coord_mapping matches what the user pressed (even if the wiring
# underneath is sending different coordinates)
_r3_swap_conversions = {3: 9, 4: 10, 5: 11, 9: 3, 10: 4, 11: 5}


def r3_swap(col):
    try:
        return _r3_swap_conversions[col]
    except KeyError:
        return col


class KeyboardConfig(_KeyboardConfig):
    # physical, visible cols (SCK, MO, MI, RX, TX, D4)
    # physical, visible rows (10, 11, 12, 13) (9, 6, 5, SCL)
    col_pins = (board.SCK, board.MOSI, board.MISO, board.RX, board.TX, board.D4)
    row_pins = (
        board.D10,
        board.D11,
        board.D12,
        board.D13,
        board.D9,
        board.D6,
        board.D5,
        board.SCL,
    )
    rollover_cols_every_rows = 4
    diode_orientation = DiodeOrientation.COLUMNS

    coord_mapping = []
    coord_mapping.extend(ic(0, x) for x in range(12))
    coord_mapping.extend(ic(1, x) for x in range(12))
    coord_mapping.extend(ic(2, x) for x in range(12))
    coord_mapping.extend(ic(3, r3_swap(x)) for x in range(12))