/**
 * Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 */

import { ElementSymbol } from 'mol-model/structure/model/types';
import { Color, ColorMap } from 'mol-util/color';
import { StructureElement, Unit, Link } from 'mol-model/structure';
import { Location } from 'mol-model/location';
import { ColorThemeProps, ColorTheme } from '../color';

// from Jmol http://jmol.sourceforge.net/jscolors/ (or 0xFFFFFF)
export const ElementSymbolColors = ColorMap({
    'H': 0xFFFFFF, 'HE': 0xD9FFFF, 'LI': 0xCC80FF, 'BE': 0xC2FF00, 'B': 0xFFB5B5, 'C': 0x909090, 'N': 0x3050F8, 'O': 0xFF0D0D, 'F': 0x90E050, 'NE': 0xB3E3F5, 'NA': 0xAB5CF2, 'MG': 0x8AFF00, 'AL': 0xBFA6A6, 'SI': 0xF0C8A0, 'P': 0xFF8000, 'S': 0xFFFF30, 'CL': 0x1FF01F, 'AR': 0x80D1E3, 'K': 0x8F40D4, 'CA': 0x3DFF00, 'SC': 0xE6E6E6, 'TI': 0xBFC2C7, 'V': 0xA6A6AB, 'CR': 0x8A99C7, 'MN': 0x9C7AC7, 'FE': 0xE06633, 'CO': 0xF090A0, 'NI': 0x50D050, 'CU': 0xC88033, 'ZN': 0x7D80B0, 'GA': 0xC28F8F, 'GE': 0x668F8F, 'AS': 0xBD80E3, 'SE': 0xFFA100, 'BR': 0xA62929, 'KR': 0x5CB8D1, 'RB': 0x702EB0, 'SR': 0x00FF00, 'Y': 0x94FFFF, 'ZR': 0x94E0E0, 'NB': 0x73C2C9, 'MO': 0x54B5B5, 'TC': 0x3B9E9E, 'RU': 0x248F8F, 'RH': 0x0A7D8C, 'PD': 0x006985, 'AG': 0xC0C0C0, 'CD': 0xFFD98F, 'IN': 0xA67573, 'SN': 0x668080, 'SB': 0x9E63B5, 'TE': 0xD47A00, 'I': 0x940094, 'XE': 0x940094, 'CS': 0x57178F, 'BA': 0x00C900, 'LA': 0x70D4FF, 'CE': 0xFFFFC7, 'PR': 0xD9FFC7, 'ND': 0xC7FFC7, 'PM': 0xA3FFC7, 'SM': 0x8FFFC7, 'EU': 0x61FFC7, 'GD': 0x45FFC7, 'TB': 0x30FFC7, 'DY': 0x1FFFC7, 'HO': 0x00FF9C, 'ER': 0x00E675, 'TM': 0x00D452, 'YB': 0x00BF38, 'LU': 0x00AB24, 'HF': 0x4DC2FF, 'TA': 0x4DA6FF, 'W': 0x2194D6, 'RE': 0x267DAB, 'OS': 0x266696, 'IR': 0x175487, 'PT': 0xD0D0E0, 'AU': 0xFFD123, 'HG': 0xB8B8D0, 'TL': 0xA6544D, 'PB': 0x575961, 'BI': 0x9E4FB5, 'PO': 0xAB5C00, 'AT': 0x754F45, 'RN': 0x428296, 'FR': 0x420066, 'RA': 0x007D00, 'AC': 0x70ABFA, 'TH': 0x00BAFF, 'PA': 0x00A1FF, 'U': 0x008FFF, 'NP': 0x0080FF, 'PU': 0x006BFF, 'AM': 0x545CF2, 'CM': 0x785CE3, 'BK': 0x8A4FE3, 'CF': 0xA136D4, 'ES': 0xB31FD4, 'FM': 0xB31FBA, 'MD': 0xB30DA6, 'NO': 0xBD0D87, 'LR': 0xC70066, 'RF': 0xCC0059, 'DB': 0xD1004F, 'SG': 0xD90045, 'BH': 0xE00038, 'HS': 0xE6002E, 'MT': 0xEB0026, 'DS': 0xFFFFFF, 'RG': 0xFFFFFF, 'CN': 0xFFFFFF, 'UUT': 0xFFFFFF, 'FL': 0xFFFFFF, 'UUP': 0xFFFFFF, 'LV': 0xFFFFFF, 'UUH': 0xFFFFFF, 'D': 0xFFFFC0, 'T': 0xFFFFA0
})

const DefaultElementSymbolColor = 0xFFFFFF as Color

export function elementSymbolColor(element: ElementSymbol): Color {
    const c = (ElementSymbolColors as { [k: string]: Color })[element];
    return c === void 0 ? DefaultElementSymbolColor : c
}

export function ElementSymbolColorTheme(props: ColorThemeProps): ColorTheme {
    function colorFn(location: Location): Color {
        if (StructureElement.isLocation(location)) {
            if (Unit.isAtomic(location.unit)) {
                const { type_symbol } = location.unit.model.atomicHierarchy.atoms
                return elementSymbolColor(type_symbol.value(location.element))
            }
        } else if (Link.isLocation(location)) {
            if (Unit.isAtomic(location.aUnit)) {
                const { type_symbol } = location.aUnit.model.atomicHierarchy.atoms
                return elementSymbolColor(type_symbol.value(location.aUnit.elements[location.aIndex]))
            }
        }
        return DefaultElementSymbolColor
    }

    return {
        kind: 'element',
        color: colorFn
    }
}