# All files / utils/legend rectTooltip.ts

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     import {range} from 'd3-array'

    import {getRangeLabel} from './tooltip'
    import {
      X_MIN,
      X_MAX,
      Y_MIN,
      Y_MAX,
      FILL,
      COUNT,
    } from '../../constants/columnKeys'
    import {
      Table,
      Scale,
      LegendData,
      LegendColumn,
      ColumnGroupMap,
    } from '../../types'

    export const findHoveredRects = (
      rectTable: Table,
      hoverX: number | null,
      hoverY: number | null,
      xScale: Scale<number, number>,
      yScale: Scale<number, number>,
      binDimension: 'xy' | 'x'
    ): number[] => {
      Iif (!hoverX || !hoverY) {
        return []
      }

      const xMinData = rectTable.getColumn(X_MIN, 'number')
      const xMaxData = rectTable.getColumn(X_MAX, 'number')
      const yMinData = rectTable.getColumn(Y_MIN, 'number')
      const yMaxData = rectTable.getColumn(Y_MAX, 'number')
      const dataX = xScale.invert(hoverX)
      const dataY = yScale.invert(hoverY)

      // Find all bins whose x extent contain the mouse x position
      const xIndices = range(0, xMinData.length).filter(
        i => xMinData[i] <= dataX && xMaxData[i] > dataX
      )

      if (binDimension === 'x' && !xIndices.some(i => yMaxData[i] >= dataY)) {
        return []
      } else Iif (binDimension === 'x') {
        return xIndices
      }
      const xyIndices = xIndices.filter(
        i => yMinData[i] <= dataY && yMaxData[i] > dataY
      )
      return xyIndices
    }

    export const get1DTooltipData = (
      hoveredRectRows: number[],
      rectTable: Table,
      inputTable: Table,
      xColKey: string,
      fillGroupMap: ColumnGroupMap,
      fillScale: Scale<number, string>,
      columnFormatter: (colKey: string) => (x: any) => string
    ): LegendData => {
      const xMinCol = rectTable.getColumn(X_MIN, 'number')
      const xMaxCol = rectTable.getColumn(X_MAX, 'number')
      const countCol = rectTable.getColumn(COUNT, 'number')
      const fillCol = rectTable.getColumn(FILL, 'number')
      const xFormatter = columnFormatter(xColKey)
      const countFormatter = columnFormatter(COUNT)
      const colors = hoveredRectRows.map(i => fillScale(fillCol[i]))

      const xTooltipColumn: LegendColumn = {
        key: xColKey,
        name: inputTable.getColumnName(xColKey),
        type: inputTable.getColumnType(xColKey),
        colors,
        values: hoveredRectRows.map(i =>
          getRangeLabel(xMinCol[i], xMaxCol[i], xFormatter)
        ),
      }

      const countTooltipColumn: LegendColumn = {
        key: COUNT,
        name: 'count',
        type: 'number',
        colors,
        values: hoveredRectRows.map(i => countFormatter(countCol[i])),
      }

      const groupTooltipColumns = fillGroupMap.columnKeys.map(key => ({
        key,
        name: inputTable.getColumnName(key),
        type: inputTable.getColumnType(key),
        colors,
        values: hoveredRectRows.map(i =>
          columnFormatter(key)(fillGroupMap.mappings[fillCol[i]][key])
        ),
      }))

      const tooltipColumns = [
        xTooltipColumn,
        countTooltipColumn,
        ...groupTooltipColumns,
      ]

      return tooltipColumns
    }

    export const get2DTooltipData = (
      hoveredRectRows: number[],
      rectTable: Table,
      inputTable: Table,
      xColKey: string,
      yColKey: string,
      columnFormatter: (colKey: string) => (x: any) => string
    ): LegendData => {
      const xMinCol = rectTable.getColumn(X_MIN, 'number')
      const xMaxCol = rectTable.getColumn(X_MAX, 'number')
      const yMinCol = rectTable.getColumn(Y_MIN, 'number')
      const yMaxCol = rectTable.getColumn(Y_MAX, 'number')
      const countCol = rectTable.getColumn(COUNT, 'number')
      const xFormatter = columnFormatter(xColKey)
      const yFormatter = columnFormatter(yColKey)
      const countFormatter = columnFormatter(COUNT)

      const xTooltipColumn: LegendColumn = {
        key: xColKey,
        name: inputTable.getColumnName(xColKey),
        type: inputTable.getColumnType(xColKey),
        colors: null,
        values: hoveredRectRows.map(i =>
          getRangeLabel(xMinCol[i], xMaxCol[i], xFormatter)
        ),
      }

      const countTooltipColumn: LegendColumn = {
        key: COUNT,
        name: 'count',
        type: 'number',
        colors: null,
        values: hoveredRectRows.map(i => countFormatter(countCol[i])),
      }

      const yTooltipColumn: LegendColumn = {
        key: yColKey,
        name: inputTable.getColumnName(yColKey),
        type: inputTable.getColumnType(yColKey),
        colors: null,
        values: hoveredRectRows.map(i =>
          getRangeLabel(yMinCol[i], yMaxCol[i], yFormatter)
        ),
      }

      const tooltipColumns = [xTooltipColumn, yTooltipColumn, countTooltipColumn]

      return tooltipColumns
    }