from array import array

_xterm = [
    (0, 0, 0), (205, 0, 0), (0, 205, 0), (205, 205, 0),
    (0, 0, 238), (205, 0, 205), (0, 205, 205), (229, 229, 229),
    (127, 127, 127), (255, 0, 0), (0, 255, 0), (255, 255, 0),
    (92, 92, 255), (255, 0, 255), (0, 255, 255), (255, 255, 255),
]
_grad = [0, 95, 135, 175, 215, 255]
for _i in range(216):
    _xterm.append((_grad[_i // 36 % 6], _grad[_i // 6 % 6], _grad[_i % 6]))
for _i in range(24):
    _v = 8 + _i * 10
    _xterm.append((_v, _v, _v))


def _pack_one(s):
    fg = s.fg_color
    if isinstance(fg, tuple):
        fv = (fg[0] << 24) | (fg[1] << 16) | (fg[2] << 8)
    else:
        r, g, b = _xterm[fg]
        fv = (r << 24) | (g << 16) | (b << 8)
    bg = s.bg_color
    if isinstance(bg, tuple):
        bv = (bg[0] << 24) | (bg[1] << 16) | (bg[2] << 8)
    else:
        r, g, b = _xterm[bg]
        bv = (r << 24) | (g << 16) | (b << 8)
    attr = (s.is_bold << 0) | (s.is_italic << 1) | (s.is_underlined << 2)
    return fv, bv, attr


def pack_style_colors(style):
    n = len(style)
    first = style[0]
    if n > 1 and all(s is first for s in style):
        fv, bv, attr = _pack_one(first)
        return array('I', [fv, bv, attr] * n)
    out = array('I')
    for s in style:
        fv, bv, attr = _pack_one(s)
        out.append(fv)
        out.append(bv)
        out.append(attr)
    return out