#!/usr/bin/python

from random import *


# complimentary:       h, h + 180
# split complimentary: h, h + 150, h + 210
# triad:               h, h + 120, h + 240
# analagous:           h, h + 30, h + 330
# mono:                vary saturation, value

def create_color_scheme(h, s, v):
    comp = (h + 180) % 360, s, v
    split_comp = ((h + 150) % 360, s, v), ((h + 210) % 360, s, v)
    triad = ((h + 120) % 360, s, v), ((h + 240) % 360, s, v)
    analagous = ((h + 30) % 360, s, v), ((h + 330) % 360, s, v)

    text = hsv_to_rgb(h, s, v) # whatever they gave us
    if (s < 15 and v > 90): # is the base color very light?
        bg = hsv_to_rgb(analagous[0][0], 100, v - 70) # dark color for bg
    else:
        bg = hsv_to_rgb(analagous[0][0], 10, 100)     # light color for bg
    link = hsv_to_rgb(*split_comp[0])
    linkhover = hsv_to_rgb(*split_comp[1])
    return {
        'text':text,
        'background':bg,
        'link':link,
        'linkhover':linkhover
        }


class RGB:
    vals = (0, 0, 0) # range 0-255
    def __init__(self, r, g, b):
        self.vals = tuple([min(255, c) for c in (r, g, b)])
    def r(self): vals[0]
    def g(self): vals[1]
    def b(self): vals[2]
    def __eq__(self, other): return self.vals == other.vals
    def __repr__(self):
        return "RGB(%d, %d, %d)" % self.vals
    def hexify(self):
        return "#%02X%02X%02X" % self.vals
    def __str__(self):
        return self.hexify()


V = 0
P = 1
Q = 2
T = 3
selector = ((V, T, P),
            (Q, V, P),
            (P, V, T),
            (P, Q, V),
            (T, P, V),
            (V, P, Q))

def hsv_to_rgb(h, s100, v100):
    """Convert (hue, saturation, value) to (red, green, blue)."""
    assert (0 <= h < 360)
    assert (0 <= s100 <= 100)
    assert (0 <= v100 <= 100)
    hi = int(h / 60) % 6
    f = h / 60.0 - hi
    s = s100 / 100.0
    v = v100 / 100.0
    p = v * (1.0 - s)
    q = v * (1.0 - f * s)
    t = v * (1.0 - (1.0 - f) * s)
    values = [v, p, q, t]
    return RGB(*tuple([int(256 * values[i]) for i in selector[hi]]))

assert(hsv_to_rgb(200, 20, 60) == RGB(122, 143, 153))
assert(hsv_to_rgb(34, 45, 34) == RGB(87, 70, 47))
assert(hsv_to_rgb(34, 90, 34) == RGB(87, 53, 8))
assert(hsv_to_rgb(50, 90, 80) == RGB(204, 174, 20))


def make_style_sheet(color_scheme):
    return """

body {
  color:%(text)s;
  background-color:%(background)s;
}

a,a:link {
 color: %(link)s;
 outline: none;
}

a:hover {
 color: %(linkhover)s;
}

""" % color_scheme


#print make_style_sheet(create_color_scheme(20, 75, 50))
print make_style_sheet(create_color_scheme(randint(0,359), randint(0,100), randint(0,100)))