// map displayed value to data value

//TODO(chab) leverage TS to prevent errors, if we know the shape of the filters and the shape of the datas
// we can have static validations

export const FILTER_VALUE_MAPPER: any = {
  Gases: 'Gas',
  Liquids: 'Liquid',
  Solids: 'Solid',
  Unknown: 'unknown',
  Alkali: 'element-alkali-metal',
  'Alkali Earth Metals': 'element-alkali-earth-metal',
  Actinides: 'element-actinoid',
  Metalloids: 'element-metalloid',
  'Transition Metals': 'element-transition-metal',
  'Post-Transition Metals': 'element-metal', //TODO(chab) confirm with Matthew
  Lanthanides: 'element-lanthoid',
  'Noble Gases': 'element-noble-gas',
  Halogens: 'element-halogen',
  Nonmetals: 'element-non-metal'
};

export const FILTERS = {
  categories: [
    [{ name: 'All', subGroups: [] }],
    [
      {
        name: 'Metals',
        key: 'category',
        subGroups: [
          { name: 'Alkali' },
          { name: 'Alkali Earth Metals' },
          { name: 'Transition Metals' },
          { name: 'Post-Transition Metals' },
          { name: 'Metalloids' },
          { name: 'Lanthanides' },
          { name: 'Actinides' }
        ]
      },
      {
        name: 'Nonmetals',
        key: 'category',
        subGroups: [{ name: 'Nonmetals' }, { name: 'Halogens' }, { name: 'Noble Gases' }]
      }
    ],
    [
      {
        name: 'Phase',
        key: 'phase',
        subGroups: [{ name: 'Gases' }, { name: 'Liquids' }, { name: 'Solids' }]
      }
    ],
    [
      {
        name: 'Groups',
        key: 'group', // TODO(chab)
        subGroups: [
          { name: 1 },
          { name: 2 },
          { name: 3 },
          { name: 4 },
          { name: 5 },
          { name: 6 },
          { name: 7 },
          { name: 8 },
          { name: 9 },
          { name: 10 },
          { name: 11 },
          { name: 12 },
          { name: 13 },
          { name: 14 },
          { name: 15 },
          { name: 16 },
          { name: 17 },
          { name: 18 }
        ]
      },
      {
        name: 'Periods',
        key: 'period',
        subGroups: [
          { name: 1 },
          { name: 2 },
          { name: 3 },
          { name: 4 },
          { name: 5 },
          { name: 6 },
          { name: 7 }
        ]
      }
    ]
  ]
};

export const FILTER_BY_CATEGORY = FILTERS.categories.reduce(
  (acc: { [id: string]: string[] }, filters) => {
    return (filters as any[]).reduce((_, filter: any) => {
      acc[filter.name] = filter.subGroups;
      return acc;
    }, acc);
  },
  {}
);