Function getComponentSlices

app/utilities/search.ts:187–422

(
  path: string,
  matchingIndices: ReadonlyArray<{ start: number; end: number }>,
  maxWeight: number
)

// 3. We try to get the final weight to be as close to the maxWeight as possible
//
export function getComponentSlices(
  path: string,
  matchingIndices: ReadonlyArray<{ start: number; end: number }>,
  maxWeight: number
): Array<PathSlice> {
  const calculateWeight = (pathSlices: PathSlice[]): number => {
    let weight = 0;

    for (const slice of pathSlices) {
      weight += calculateSliceWeight(slice);
    }

    return weight;
  };

  const calculateSliceWeight = (slice: PathSlice): number => {
    if (slice.type === "component") {
      return slice.slice.slice.length;
    } else if (slice.type === "ellipsis") {
      return 2;
    } else {
      return 8;
    }
  };

  const calculateLongestMatch = (componentSlices: ComponentSlice[]): number => {
    return componentSlices.reduce(
      (longestMatch, slice) =>
        slice.slice.isMatch
          ? Math.max(longestMatch, slice.slice.slice.length)
          : longestMatch,
      0
    );
  };

  const addEllipsisToSlices = (
    slices: PathSlice[],
    mostImportantComponentIndex: number
  ): PathSlice[] => {
    // This should take an array of slices like this:
    // [
    //   { type: "component", slice: { isMatch: true, slice: "re" } },
    //   { type: "component", slice: { isMatch: false, slice: "cords" } },
    //   { type: "join" },
    //   { type: "ellipsis" },
    //   { type: "join" },
    //   { type: "ellipsis" },
    //   { type: "ellipsis" },
    //   { type: "join" },
    //   { type: "component", slice: { isMatch: true, slice: "street" } },
    //   { type: "component", slice: { isMatch: false, slice: "_address" } },
    // ]
    //
    //
    // And should return this:
    // [
    //   { type: "component", slice: { isMatch: true, slice: "re" } },
    //   { type: "component", slice: { isMatch: false, slice: "cords" } },