"""
Map of CSS color names to RGB integer values.
"""

import re
import sys

_PY2 = sys.version_info[0] == 2
string_types = basestring if _PY2 else str


css_colors = {
    'aliceblue':      (240, 248, 255),
    'antiquewhite':   (250, 235, 215),
    'aqua':           (0, 255, 255),
    'aquamarine':     (127, 255, 212),
    'azure':          (240, 255, 255),
    'beige':          (245, 245, 220),
    'bisque':         (255, 228, 196),
    'black':          (0, 0, 0),
    'blanchedalmond': (255, 235, 205),
    'blue':           (0, 0, 255),
    'blueviolet':     (138, 43, 226),
    'brown':          (165, 42, 42),
    'burlywood':      (222, 184, 135),
    'cadetblue':      (95, 158, 160),
    'chartreuse':     (127, 255, 0),
    'chocolate':      (210, 105, 30),
    'coral':          (255, 127, 80),
    'cornflowerblue': (100, 149, 237),
    'cornsilk':       (255, 248, 220),
    'crimson':        (220, 20, 60),
    'cyan':           (0, 255, 255),
    'darkblue':       (0, 0, 139),
    'darkcyan':       (0, 139, 139),
    'darkgoldenrod':  (184, 134, 11),
    'darkgray':       (169, 169, 169),
    'darkgreen':      (0, 100, 0),
    'darkgrey':       (169, 169, 169),
    'darkkhaki':      (189, 183, 107),
    'darkmagenta':    (139, 0, 139),
    'darkolivegreen': (85, 107, 47),
    'darkorange':     (255, 140, 0),
    'darkorchid':     (153, 50, 204),
    'darkred':        (139, 0, 0),
    'darksalmon':     (233, 150, 122),
    'darkseagreen':   (143, 188, 143),
    'darkslateblue':  (72, 61, 139),
    'darkslategray':  (47, 79, 79),
    'darkslategrey':  (47, 79, 79),
    'darkturquoise':  (0, 206, 209),
    'darkviolet':     (148, 0, 211),
    'deeppink':       (255, 20, 147),
    'deepskyblue':    (0, 191, 255),
    'dimgray':        (105, 105, 105),
    'dimgrey':        (105, 105, 105),
    'dodgerblue':     (30, 144, 255),
    'firebrick':      (178, 34, 34),
    'floralwhite':    (255, 250, 240),
    'forestgreen':    (34, 139, 34),
    'fuchsia':        (255, 0, 255),
    'gainsboro':      (220, 220, 220),
    'ghostwhite':     (248, 248, 255),
    'gold':           (255, 215, 0),
    'goldenrod':      (218, 165, 32),
    'gray':           (128, 128, 128),
    'green':          (0, 128, 0),
    'greenyellow':    (173, 255, 47),
    'grey':           (128, 128, 128),
    'honeydew':       (240, 255, 240),
    'hotpink':        (255, 105, 180),
    'indianred':      (205, 92, 92),
    'indigo':         (75, 0, 130),
    'ivory':          (255, 255, 240),
    'khaki':          (240, 230, 140),
    'lavender':       (230, 230, 250),
    'lavenderblush':  (255, 240, 245),
    'lawngreen':      (124, 252, 0),
    'lemonchiffon':   (255, 250, 205),
    'lightblue':      (173, 216, 230),
    'lightcoral':     (240, 128, 128),
    'lightcyan':      (224, 255, 255),
    'lightgoldenrodyellow': (250, 250, 210),
    'lightgray':      (211, 211, 211),
    'lightgreen':     (144, 238, 144),
    'lightgrey':      (211, 211, 211),
    'lightpink':      (255, 182, 193),
    'lightsalmon':    (255, 160, 122),
    'lightseagreen':  (32, 178, 170),
    'lightskyblue':   (135, 206, 250),
    'lightslategray': (119, 136, 153),
    'lightslategrey': (119, 136, 153),
    'lightsteelblue': (176, 196, 222),
    'lightyellow':    (255, 255, 224),
    'lime':           (0, 255, 0),
    'limegreen':      (50, 205, 50),
    'linen':          (250, 240, 230),
    'magenta':        (255, 0, 255),
    'maroon':         (128, 0, 0),
    'mediumaquamarine': (102, 205, 170),
    'mediumblue':     (0, 0, 205),
    'mediumorchid':   (186, 85, 211),
    'mediumpurple':   (147, 112, 219),
    'mediumseagreen': (60, 179, 113),
    'mediumslateblue': (123, 104, 238),
    'mediumspringgreen': (0, 250, 154),
    'mediumturquoise': (72, 209, 204),
    'mediumvioletred': (199, 21, 133),
    'midnightblue':   (25, 25, 112),
    'mintcream':      (245, 255, 250),
    'mistyrose':      (255, 228, 225),
    'moccasin':       (255, 228, 181),
    'navajowhite':    (255, 222, 173),
    'navy':           (0, 0, 128),
    'oldlace':        (253, 245, 230),
    'olive':          (128, 128, 0),
    'olivedrab':      (107, 142, 35),
    'orange':         (255, 165, 0),
    'orangered':      (255, 69, 0),
    'orchid':         (218, 112, 214),
    'palegoldenrod':  (238, 232, 170),
    'palegreen':      (152, 251, 152),
    'paleturquoise':  (175, 238, 238),
    'palevioletred':  (219, 112, 147),
    'papayawhip':     (255, 239, 213),
    'peachpuff':      (255, 218, 185),
    'peru':           (205, 133, 63),
    'pink':           (255, 192, 203),
    'plum':           (221, 160, 221),
    'powderblue':     (176, 224, 230),
    'purple':         (128, 0, 128),
    'rebeccapurple':  (102, 51, 153),
    'red':            (255, 0, 0),
    'rosybrown':      (188, 143, 143),
    'royalblue':      (65, 105, 225),
    'saddlebrown':    (139, 69, 19),
    'salmon':         (250, 128, 114),
    'sandybrown':     (244, 164, 96),
    'seagreen':       (46, 139, 87),
    'seashell':       (255, 245, 238),
    'sienna':         (160, 82, 45),
    'silver':         (192, 192, 192),
    'skyblue':        (135, 206, 235),
    'slateblue':      (106, 90, 205),
    'slategray':      (112, 128, 144),
    'slategrey':      (112, 128, 144),
    'snow':           (255, 250, 250),
    'springgreen':    (0, 255, 127),
    'steelblue':      (70, 130, 180),
    'tan':            (210, 180, 140),
    'teal':           (0, 128, 128),
    'thistle':        (216, 191, 216),
    'tomato':         (255, 99, 71),
    'turquoise':      (64, 224, 208),
    'violet':         (238, 130, 238),
    'wheat':          (245, 222, 179),
    'white':          (255, 255, 255),
    'whitesmoke':     (245, 245, 245),
    'yellow':         (255, 255, 0),
    'yellowgreen':    (154, 205, 50)
}


def parse_rgb(s):
    if not isinstance(s, string_types):
        raise ValueError("Could not parse color '{0}'".format(s))
    s = s.strip().replace(' ', '').lower()
    # simple lookup
    rgb = css_colors.get(s)
    if rgb is not None:
        return rgb

    # 6-digit hex
    match = re.match('#([a-f0-9]{6})$', s)
    if match:
        core = match.group(1)
        return tuple(int(core[i:i+2], 16) for i in range(0, 6, 2))

    # 3-digit hex
    match = re.match('#([a-f0-9]{3})$', s)
    if match:
        return tuple(int(c*2, 16) for c in match.group(1))

    # rgb(x,y,z)
    match = re.match(r'rgb\((\d+,\d+,\d+)\)', s)
    if match:
        return tuple(int(v) for v in match.group(1).split(','))

    raise ValueError("Could not parse color '{0}'".format(s))