import { $Values as Values } from 'utility-types' ; import { LegendPath } from '../../../../state/actions/legend' ; import { DataName , QuadViewModel } from '../types/viewmodel_types' ; type LegendStrategyFn = ( legendPath : LegendPath ) => ( partialShape : { path : LegendPath ; dataName : DataName ; } ) => boolean ; const legendStrategies = { node : ( legendPath ) => ( { path } ) => legendPath . length === path . length && legendPath . every ( ( { index , value } , i ) => index === path [ i ] ?. index && value === path [ i ] ?. value ) , path : ( legendPath ) => ( { path } ) => path . every ( ( { index , value } , i ) => index === legendPath [ i ] ?. index && value === legendPath [ i ] ?. value ) , keyInLayer : ( legendPath ) => ( { path , dataName } ) => legendPath . length === path . length && dataName === legendPath [ legendPath . length - 1 ] . value , key : ( legendPath ) => ( { dataName } ) => dataName === legendPath [ legendPath . length - 1 ] . value , nodeWithDescendants : ( legendPath ) => ( { path } ) => legendPath . every ( ( { index , value } , i ) => index === path [ i ] ?. index && value === path [ i ] ?. value ) , pathWithDescendants : ( legendPath ) => ( { path } ) => legendPath . slice ( 0 , path . length ) . every ( ( { index , value } , i ) => index === path [ i ] ?. index && value === path [ i ] ?. value ) , } ; public export const LegendStrategy = Object . freeze ( { /**
     * Highlight the specific node(s) that the legend item stands for.
     */ Node : 'node' as const , /**
     * Highlight members of the exact path; ie. like `Node`, plus all its ancestors
     */ Path : 'path' as const , /**
     * Highlight all identically named (labelled) items within the tree layer (depth or ring) of the specific node(s) that the legend item stands for
     */ KeyInLayer : 'keyInLayer' as const , /**
     * Highlight all identically named (labelled) items, no matter where they are
     */ Key : 'key' as const , /**
     * Highlight the specific node(s) that the legend item stands for, plus all descendants
     */ NodeWithDescendants : 'nodeWithDescendants' as const , /**
     * Highlight the specific node(s) that the legend item stands for, plus all ancestors and descendants
     */ PathWithDescendants : 'pathWithDescendants' as const , } ) ; public export type LegendStrategy = Values < typeof LegendStrategy > ; const defaultStrategy = LegendStrategy . Key ; internal export function highlightedGeoms ( legendStrategy , flatLegend , quadViewModel , highlightedLegendItemPath ) { const pickedLogic = flatLegend ? LegendStrategy . Key : legendStrategy ?? defaultStrategy ; return quadViewModel . filter ( legendStrategies [ pickedLogic ] ( highlightedLegendItemPath ) ) ; }