import {CHARSET, CHARS} from '@mathjax/font-tools/js/CharMap.js';
import {Font} from '@mathjax/font-tools/js/Font.js';
import {Variants} from '@mathjax/font-tools/js/Variant.js';
import {Delimiters} from '@mathjax/font-tools/js/Delimiters.js';
import {FontDef} from '@mathjax/font-tools/js/CommonFont.js';
import {SVGFont} from '@mathjax/font-tools/js/SVGFont.js';
import {CHTMLFont} from '@mathjax/font-tools/js/CHTMLFont.js';
import {Components} from '@mathjax/font-tools/js/Components.js';
import {FontData} from 'mathjax-full/mjs/output/common/FontData.js';

import {GenericFont as GenericSVGFont} from '@mathjax/fonts/generic/mjs/svg.js';
import {GenericFont as GenericCHTMLFont} from '@mathjax/fonts/generic/mjs/chtml.js';

/***********************************************************************************/

try {

  Font.load({
    'MB-bbm': ['fonts/bbm10.otf', {}],
    'MB-bbmbx': ['fonts/bbmbx10.otf', {}],
    'MB-bbmss': ['fonts/bbmss10.otf', {}],
    'MB-bbmssbx': ['fonts/bbmssbx10.otf', {}],
    'MB-bbmtt': ['fonts/bbmtt10.otf', {}],
  });

  /***********************************************************************************/

  const MathJaxBbmVariants = Variants.define({
    '-bbm-normal': ['MB-bbm', [
      CHARS.MapFrom(0x41, CHARSET.MathDoubleStruckUC),
      CHARS.MapFrom(0x61, CHARSET.MathDoubleStruckLC),
      CHARS.MapFrom(0x31, CHARS.At(0x1D7D9, 0x1D7DA)),
      CHARS.At(0x28, 0x29), // ( and )
      CHARS.At(0x5B, 0x5D), // [ and ]
    ]],
    '-bbm-bold': ['MB-bbmbx', [
      CHARS.MapFrom(0x41, CHARSET.MathDoubleStruckUC),
      CHARS.MapFrom(0x61, CHARSET.MathDoubleStruckLC),
      CHARS.MapFrom(0x31, CHARS.At(0x1D7D9, 0x1D7DA)),
      CHARS.At(0x28, 0x29), // ( and )
      CHARS.At(0x5B, 0x5D), // [ and ]
    ]],
    '-bbm-sans-serif': ['MB-bbmss', [
      CHARS.MapFrom(0x41, CHARSET.MathDoubleStruckUC),
      CHARS.MapFrom(0x61, CHARSET.MathDoubleStruckLC),
      CHARS.MapFrom(0x31, CHARS.At(0x1D7D9, 0x1D7DA)),
      CHARS.At(0x28, 0x29), // ( and )
      CHARS.At(0x5B, 0x5D), // [ and ]
    ]],
    '-bbm-sans-serif-bold': ['MB-bbmssbx', [
      CHARS.MapFrom(0x41, CHARSET.MathDoubleStruckUC),
      CHARS.MapFrom(0x61, CHARSET.MathDoubleStruckLC),
      CHARS.MapFrom(0x31, CHARS.At(0x1D7D9, 0x1D7DA)),
      CHARS.At(0x28, 0x29), // ( and )
      CHARS.At(0x5B, 0x5D), // [ and ]
    ]],
    '-bbm-monospace': ['MB-bbmtt', [
      CHARS.MapFrom(0x41, CHARSET.MathDoubleStruckUC),
      CHARS.MapFrom(0x61, CHARSET.MathDoubleStruckLC),
      CHARS.MapFrom(0x31, CHARS.At(0x1D7D9, 0x1D7DA)),
      CHARS.At(0x28, 0x29), // ( and )
      CHARS.At(0x5B, 0x5D), // [ and ]
    ]],
  });

  /***********************************************************************************/

  const MathJaxBbmDelimiters = {
    font: 'MB-bbm',
    variants: MathJaxBbmVariants,
    sizeVariants: ['normal'],
    stretchVariants: ['normal'],
    readMathTable: false,
  };

  /***********************************************************************************/

  const MathJaxBbmData: FontDef = {
    name: 'MathJaxBbm',
    prefix: 'MB',
    variants: MathJaxBbmVariants,
    delimiters: null,
    variantFallbacks: {
      '-bbm-normal': ['normal'],
      '-bbm-bold': ['bold'],
      '-bbm-sans-serif': ['sans-serif'],
      '-bbm-sans-serif-bold': ['bold-sans-serif'],
      '-bbm-monospace': ['monospace']
    },
    variantSmp: {
      '-bbm-normal': 'double-struck',
      '-bbm-bold': 'double-struck',
      '-bbm-sans-serif': 'double-struck',
      '-bbm-sans-serif-bold': 'double-struck',
      '-bbm-monospace': 'double-struck'
    }
  };

  const MathJaxBbmSVGData: FontDef = {
    ...MathJaxBbmData,
    delimiters: Delimiters.define({
      ...MathJaxBbmDelimiters,
      extends: {
        fontClass: GenericSVGFont as typeof FontData,
        path: '@mathjax/fonts/generic/mjs/svg.js'
      },
    })
  };

  const MathJaxBbmCHTMLData: FontDef = {
    ...MathJaxBbmData,
    delimiters: Delimiters.define({
      ...MathJaxBbmDelimiters,
      extends: {
        fontClass: GenericCHTMLFont as typeof FontData,
        path: '@mathjax/fonts/generic/mjs/chtml.js'
      },
    })
  };

  SVGFont.define(MathJaxBbmSVGData).writeExtension('mathjax-bbm');
  Components.define('svg', MathJaxBbmSVGData).writeExtension();

  CHTMLFont.define(MathJaxBbmCHTMLData).writeExtension('mathjax-bbm').makeWoffFonts('MB-bbm', false);
  Components.define('chtml', MathJaxBbmCHTMLData).writeExtension();

} catch (err) {
  console.log(err);
  process.exit(1);
}