/**
 * Copyright (c) 2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 */

import { UnitsRepresentation } from '../units-representation';
import { ParamDefinition as PD } from '../../../mol-util/param-definition';
import { StructureRepresentation, StructureRepresentationProvider, StructureRepresentationStateBuilder } from '../representation';
import { Representation, RepresentationParamsGetter, RepresentationContext } from '../../../mol-repr/representation';
import { ThemeRegistryContext } from '../../../mol-theme/theme';
import { Structure } from '../../../mol-model/structure';
import { OrientationEllipsoidMeshParams, OrientationEllipsoidMeshVisual } from '../visual/orientation-ellipsoid-mesh';

const OrientationVisuals = {
    'orientation-ellipsoid-mesh': (ctx: RepresentationContext, getParams: RepresentationParamsGetter<Structure, OrientationEllipsoidMeshParams>) => UnitsRepresentation('Orientation ellipsoid mesh', ctx, getParams, OrientationEllipsoidMeshVisual),
}
type OrientationVisualName = keyof typeof OrientationVisuals
const OrientationVisualOptions = Object.keys(OrientationVisuals).map(name => [name, name] as [OrientationVisualName, string])

export const OrientationParams = {
    ...OrientationEllipsoidMeshParams,
    visuals: PD.MultiSelect<OrientationVisualName>(['orientation-ellipsoid-mesh'], OrientationVisualOptions),
}
export type OrientationParams = typeof OrientationParams
export function getOrientationParams(ctx: ThemeRegistryContext, structure: Structure) {
    return PD.clone(OrientationParams)
}

export type OrientationRepresentation = StructureRepresentation<OrientationParams>
export function OrientationRepresentation(ctx: RepresentationContext, getParams: RepresentationParamsGetter<Structure, OrientationParams>): OrientationRepresentation {
    return Representation.createMulti('Orientation', ctx, getParams, StructureRepresentationStateBuilder, OrientationVisuals as unknown as Representation.Def<Structure, OrientationParams>)
}

export const OrientationRepresentationProvider: StructureRepresentationProvider<OrientationParams> = {
    label: 'Orientation',
    description: 'Displays orientation ellipsoids for polymer chains.',
    factory: OrientationRepresentation,
    getParams: getOrientationParams,
    defaultValues: PD.getDefaultValues(OrientationParams),
    defaultColorTheme: 'polymer-id',
    defaultSizeTheme: 'uniform',
    isApplicable: (structure: Structure) => structure.elementCount > 0
}