export function createTooltipInfo()

in src/tooltipBuilder.ts [52:99]
39 lines of code
9 McCabe index (conditional complexity)

    export function createTooltipInfo(
        categoryValue: any,
        categories?: DataViewCategoryColumn[],
        seriesData?: TooltipSeriesDataItem[]): VisualTooltipDataItem[] {

        let categorySource: TooltipCategoryDataItem,
            seriesSource: TooltipSeriesDataItem[] = [];

        if (categories && categories.length > 0) {
            if (categories.length > 1) {
                const compositeCategoriesData: DataViewMetadataColumn[] = [];

                for (let i: number = 0, length: number = categories.length; i < length; i++) {
                    compositeCategoriesData.push(categories[i].source);
                }

                categorySource = {
                    value: categoryValue,
                    metadata: compositeCategoriesData
                };
            }
            else {
                categorySource = {
                    value: categoryValue,
                    metadata: [categories[0].source]
                };
            }
        }

        if (seriesData) {
            for (let i: number = 0, len: number = seriesData.length; i < len; i++) {
                const singleSeriesData: TooltipSeriesDataItem = seriesData[i];

                if (categorySource
                    && categorySource.metadata[0] === singleSeriesData.metadata.source) {

                    continue;
                }

                seriesSource.push({
                    value: singleSeriesData.value,
                    metadata: singleSeriesData.metadata
                });
            }
        }

        return createTooltipData(categorySource, seriesSource);
    }