// units for converting CSS2 points/length, i.e. CSS2 value / pxPmm
const pxPmm = 1 / 0.2822222 // used for scaling SVG coordinates(PX) to CAG coordinates(MM)
const inchMM = 1 / (1 / 0.039370) // used for scaling SVG coordinates(IN) to CAG coordinates(MM)
const ptMM = 1 / (1 / 0.039370 / 72) // used for scaling SVG coordinates(IN) to CAG coordinates(MM)
const pcMM = 1 / (1 / 0.039370 / 72 * 12) // used for scaling SVG coordinates(PC) to CAG coordinates(MM)
const cssPxUnit = 0.2822222 // standard pixel size at arms length on 90dpi screens

// standard SVG named colors (sRGB values)
const svgColors = {
  '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],
  'grey': [128, 128, 128],
  'green': [0, 128, 0],
  'greenyellow': [173, 255, 47],
  '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],
  '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]
}

module.exports = {
  pxPmm,
  inchMM,
  ptMM,
  pcMM,
  cssPxUnit,
  svgColors
}