Grouped X tooltip

import type { IndustriesRow } from '@charts-poc/demo-data/industries'

export const industryNames = ['Manufacturing', 'Construction', 'Finance']
export type IndustryName = (typeof industryNames)[number]
export type GroupedTooltipDatum = IndustriesRow & {
  readonly industry: IndustryName
}

export function selectGroupedTooltipData(
  rows: readonly IndustriesRow[],
  revision = 0,
): readonly GroupedTooltipDatum[] {
  const offset = Math.abs(revision) % 2
  const start = Date.UTC(2000, offset)
  const end = Date.UTC(2003, offset)

  return rows.filter(
    (row): row is GroupedTooltipDatum =>
      row.date.getTime() >= start &&
      row.date.getTime() < end &&
      industryNames.some((industry) => industry === row.industry),
  )
}

import {
  bandX,
  defineChart,
  dot,
  lineY,
  mountChart,
  whenFocused,
} from '@tanstack/charts'
import { decorative } from '@tanstack/charts/mark/decorative'
import type { ChartHostOptions, ChartTooltipOptions } from '@tanstack/charts'
import { tooltip } from '@tanstack/charts/tooltip'
import { portal } from '@tanstack/charts/tooltip/portal'
import { scaleLinear, scaleUtc } from 'd3-scale'
import { industries } from '@charts-poc/demo-data/industries'
import type {
  ConformanceHandle,
  ConformanceInput,
  ConformanceTestDriver,
} from '../../types'
import { industryNames, selectGroupedTooltipData } from './selection'
import type { GroupedTooltipDatum } from './selection'
import { tanstackCase } from '../../shared/mount'

const colors = ['#2563eb', '#f97316', '#10b981']

const definition = (input: ConformanceInput) => {
  const rows = selectGroupedTooltipData(industries, input.revision)
  const dates = rows.filter((row) => row.industry === industryNames[0])
  return defineChart({
    marks: [
      whenFocused(
        bandX(dates, {
          x: 'date',
          fill: '#64748b',
          fillOpacity: 0.14,
          inset: 3,
          radius: 4,
        }),
        { match: 'x' },
      ),
      decorative(
        lineY(rows, {
          x: 'date',
          y: 'unemployed',
          color: 'industry',
        }),
      ),
      dot(rows, {
        x: 'date',
        y: 'unemployed',
        z: 'industry',
        color: 'industry',
        r: 2.5,
        states: [
          {
            when: { focus: 'group' },
            style: { r: 5, stroke: 'Canvas', strokeWidth: 1.5 },
            transition: {
              type: 'tween',
              duration: 140,
              easing: 'ease-out',
            },
          },
          {
            when: { focus: 'unmatched' },
            style: { opacity: 0.3 },
          },
        ],
      }),
    ],
    x: { scale: scaleUtc },
    y: {
      scale: scaleLinear,
      grid: true,
      axis: { label: 'Unemployed (thousands)' },
    },
    color: {
      domain: industryNames,
      range: colors,
    },
  })
}

const interactiveTooltip: ChartTooltipOptions<GroupedTooltipDatum> = {
  portal,
  anchor: 'group-center',
  placement: ['top', 'right', 'left', 'bottom'],
  sort: 'color-domain',
}

const catalogDefinition = (input: ConformanceInput) =>
  defineChart(definition(input), { focus: 'group-x' })

export const catalogCase = tanstackCase(
  catalogDefinition,
  'Grouped industry unemployment tooltip',
  interactiveTooltip,
)

const configuredDefinition = (input: ConformanceInput) =>
  defineChart(definition(input), {
    svgAnimation: false,
    keyboard: true,
    focus: 'group-x',
    tooltip: {
      use: tooltip,
      ...interactiveTooltip,
    },
  })

export function mount(
  container: HTMLElement,
  input: ConformanceInput,
): ConformanceHandle {
  let focusedRows: string[] = []
  const options: ChartHostOptions<GroupedTooltipDatum> = {
    definition: configuredDefinition(input),
    width: input.width,
    height: input.height,
    ariaLabel: 'Grouped industry unemployment tooltip',
    onFocusGroupChange(points) {
      focusedRows = points.map(
        (point) => `${dateKey(point.datum.date)}:${point.datum.industry}`,
      )
    },
  }
  const host = mountChart(container, options)
  const driver: ConformanceTestDriver = {
    resolveTarget(target) {
      if (target.view && target.view !== 'main') return null
      const date = target.anchor.startsWith('date:')
        ? target.anchor.slice('date:'.length)
        : null
      const point = host
        .getScene()
        .points.find(
          (candidate) =>
            dateKey(candidate.datum.date) === date &&
            candidate.datum.industry === industryNames[0],
        )
      const svg = container.querySelector('svg')
      if (!point || !svg) return null
      const scene = host.getScene()
      const bounds = svg.getBoundingClientRect()
      return {
        x: bounds.left + (point.x / scene.width) * bounds.width,
        y: bounds.top + (point.y / scene.height) * bounds.height,
        focusElement: svg,
      }
    },
    readState() {
      const tooltip = container.querySelector<HTMLElement>('.ts-chart-tooltip')
      return {
        focus: { rows: [...focusedRows] },
        tooltip: {
          visible: Boolean(tooltip && !tooltip.hidden),
          text: tooltip?.textContent?.trim() ?? '',
        },
      }
    },
  }

  return {
    driver,
    update(nextInput) {
      host.update({
        ...options,
        definition: configuredDefinition(nextInput),
        width: nextInput.width,
        height: nextInput.height,
      })
    },
    destroy() {
      host.destroy()
    },
  }
}

function dateKey(date: Date) {
  return date.toISOString().slice(0, 10)
}

import {
  defineChart,
  isResponsiveChartDefinition,
  mountChart,
} from '@tanstack/charts'
import { tooltip } from '@tanstack/charts/tooltip'
import type {
  DomChartDefinition,
  ChartDefinitionOptions,
  ChartValue,
  ChartTooltipOptions,
} from '@tanstack/charts'
import type {
  ConformanceHandle,
  ConformanceInput,
  ConformanceMount,
} from '../types'

export function mountObservablePlot(
  container: HTMLElement,
  input: ConformanceInput,
  render: (input: ConformanceInput) => HTMLElement | SVGSVGElement,
): ConformanceHandle {
  let element = render(input)
  container.append(element)

  return {
    update(nextInput) {
      const nextElement = render(nextInput)
      element.replaceWith(nextElement)
      element = nextElement
    },
    destroy() {
      element.remove()
    },
  }
}

export function tanstackMount<
  TDatum,
  TXValue extends ChartValue = ChartValue,
  TYValue extends ChartValue = ChartValue,
>(
  createDefinition: (
    input: ConformanceInput,
  ) => DomChartDefinition<TDatum, TXValue, TYValue>,
  ariaLabel: string,
  interactiveTooltip: true | ChartTooltipOptions<TDatum> = true,
): TanStackConformanceCase<TDatum, TXValue, TYValue> {
  const mount: ConformanceMount = (container, input) => {
    const options = {
      definition: withConformanceBehavior(
        createDefinition(input),
        input,
        interactiveTooltip,
      ),
      width: input.width,
      height: input.height,
      ariaLabel,
    } as const
    const host = mountChart(container, options)

    return {
      update(nextInput) {
        host.update({
          ...options,
          definition: withConformanceBehavior(
            createDefinition(nextInput),
            nextInput,
            interactiveTooltip,
          ),
          width: nextInput.width,
          height: nextInput.height,
        })
      },
      destroy() {
        host.destroy()
      },
    }
  }

  const catalogCase = Object.assign(mount, {
    createDefinition,
    ariaLabel,
    interactiveTooltip,
  })

  return Object.assign(catalogCase, { mount: catalogCase })
}

export interface TanStackConformanceCase<
  TDatum,
  TXValue extends ChartValue = ChartValue,
  TYValue extends ChartValue = ChartValue,
> {
  (container: HTMLElement, input: ConformanceInput): ConformanceHandle
  createDefinition: (
    input: ConformanceInput,
  ) => DomChartDefinition<TDatum, TXValue, TYValue>
  ariaLabel: string
  interactiveTooltip: true | ChartTooltipOptions<TDatum>
  mount: ConformanceMount
}

export function tanstackCase<
  TDatum,
  TXValue extends ChartValue = ChartValue,
  TYValue extends ChartValue = ChartValue,
>(
  createDefinition: (
    input: ConformanceInput,
  ) => DomChartDefinition<TDatum, TXValue, TYValue>,
  ariaLabel: string,
  interactiveTooltip: true | ChartTooltipOptions<TDatum> = true,
): TanStackConformanceCase<TDatum, TXValue, TYValue> {
  return tanstackMount(createDefinition, ariaLabel, interactiveTooltip)
}

export function withConformanceBehavior<
  TDatum,
  TXValue extends ChartValue,
  TYValue extends ChartValue,
>(
  definition: DomChartDefinition<TDatum, TXValue, TYValue>,
  input: ConformanceInput,
  interactiveTooltip: true | ChartTooltipOptions<TDatum>,
): DomChartDefinition<TDatum, TXValue, TYValue> {
  const behavior: ChartDefinitionOptions<TDatum, TXValue, TYValue, 'dom'> = {
    svgAnimation: false,
    ...(input.interactive === true ? {} : { focus: false }),
    keyboard: input.interactive === true,
    tooltip:
      input.interactive !== true
        ? false
        : interactiveTooltip === true
          ? tooltip
          : { use: tooltip, ...interactiveTooltip },
  }

  if (isResponsiveChartDefinition(definition)) {
    return defineChart(definition, behavior)
  }
  return defineChart(definition, behavior)
}

export type ConformanceReferenceRenderer =
  'observable-plot' | 'recharts' | 'echarts'

export type ConformanceRenderer = ConformanceReferenceRenderer | 'tanstack'

export type ConformanceSupport = 'native' | 'composed' | 'gap' | 'deferred'

export type ConformanceGeometryRole =
  | 'arc'
  | 'area'
  | 'arrow'
  | 'bar'
  | 'cell'
  | 'contour'
  | 'delaunay'
  | 'density'
  | 'dot'
  | 'frame'
  | 'geo'
  | 'hexagon'
  | 'line'
  | 'link'
  | 'rect'
  | 'radar'
  | 'regression'
  | 'rule'
  | 'text'
  | 'tick'
  | 'vector'
  | 'voronoi'
  | 'waffle'

export interface ConformanceInput {
  width: number
  height: number
  revision: number
  interactive?: boolean
  /** Use lower-detail geometry suited to compact catalog cards. */
  preview?: boolean
  /** True only for semantic browser scenarios, not catalog or visual mounts. */
  behavior?: boolean
}

export interface ConformanceHandle {
  update: (input: ConformanceInput) => void
  driver?: ConformanceTestDriver
  destroy: () => void
}

export type ConformanceMount = (
  container: HTMLElement,
  input: ConformanceInput,
) => ConformanceHandle

export interface ConformanceGeometryExpectation {
  id?: string
  view?: string
  role: ConformanceGeometryRole
  count: number
  maxCount?: number
  rendererRoles?: Partial<Record<ConformanceRenderer, ConformanceGeometryRole>>
}

export type ConformanceAxis = 'x' | 'y' | 'fx' | 'fy'

export interface ConformanceGuideExpectation {
  id: string
  axis:
    | ConformanceAxis
    | (Record<'tanstack', ConformanceAxis> &
        Partial<Record<ConformanceReferenceRenderer, ConformanceAxis>>)
  sequence?: readonly string[]
  maxRepeat?: number
}

export type ConformanceJsonValue =
  | null
  | boolean
  | number
  | string
  | readonly ConformanceJsonValue[]
  | ConformanceJsonObject

export interface ConformanceJsonObject {
  readonly [key: string]: ConformanceJsonValue
}

export interface ConformanceTarget {
  view?: string
  anchor: string
}

export type ConformanceRenderedTarget =
  | {
      selector: string
      index?: number
      role?: never
      name?: never
      exact?: never
      root?: never
      page?: never
    }
  | {
      role: string
      name?: string
      exact?: boolean
      index?: number
      selector?: never
      root?: never
      page?: never
    }
  | {
      root: true
      selector?: never
      role?: never
      name?: never
      exact?: never
      index?: never
      page?: never
    }
  | {
      page: true
      selector?: never
      role?: never
      name?: never
      exact?: never
      index?: never
      root?: never
    }

export interface ConformanceResolvedTarget {
  /** Viewport-relative client coordinate used by Playwright mouse input. */
  x: number
  /** Viewport-relative client coordinate used by Playwright mouse input. */
  y: number
  /** Optional element to focus before a real Playwright keyboard action. */
  focusElement?: HTMLElement | SVGElement
}

export interface ConformanceGeometryQuery {
  view?: string
  role: ConformanceGeometryRole
}

export interface ConformanceGeometrySample {
  /** Viewport-relative client box, matching getBoundingClientRect coordinates. */
  x: number
  y: number
  width: number
  height: number
  paint?: string
}

export interface ConformanceTestDriver {
  /**
   * Benchmark-only semantic bridge. Case metadata names anchors; each renderer
   * resolves those anchors without exposing renderer-specific selectors.
   */
  resolveTarget: (target: ConformanceTarget) => ConformanceResolvedTarget | null
  readState: () => ConformanceJsonObject
  geometry?: (
    query: ConformanceGeometryQuery,
  ) => readonly ConformanceGeometrySample[]
  /**
   * Viewport-relative logical view bounds. Multi-grid renderers may expose
   * independent views without separate DOM roots.
   */
  viewBounds?: (view?: string) => ConformanceGeometrySample | null
  settle?: () => void | Promise<void>
}

export type ConformanceStateAssertion =
  | {
      path: string
      equals: ConformanceJsonValue
    }
  | {
      path: string
      includes: ConformanceJsonValue
    }
  | {
      path: string
      approx: number
      tolerance: number
    }

type ConformanceRenderedStringMatcher =
  | {
      equals: string | null
      includes?: never
    }
  | {
      includes: string
      equals?: never
    }

type ConformanceRenderedNumberMatcher =
  | {
      equals: number
      approx?: never
      tolerance?: never
      atLeast?: never
      atMost?: never
    }
  | {
      approx: number
      tolerance: number
      equals?: never
      atLeast?: never
      atMost?: never
    }
  | {
      atLeast: number
      equals?: never
      approx?: never
      tolerance?: never
      atMost?: never
    }
  | {
      atMost: number
      equals?: never
      approx?: never
      tolerance?: never
      atLeast?: never
    }

export type ConformanceRenderedAssertion =
  | ({
      target: ConformanceRenderedTarget
      property: 'count'
    } & ConformanceRenderedNumberMatcher)
  | ({
      target: ConformanceRenderedTarget
      property: 'text'
    } & ConformanceRenderedStringMatcher)
  | ({
      target: ConformanceRenderedTarget
      property: 'attribute'
      attribute: string
    } & ConformanceRenderedStringMatcher)
  | {
      target: ConformanceRenderedTarget
      property: 'visible' | 'focused'
      equals: boolean
    }
  | ({
      target: ConformanceRenderedTarget
      property:
        | 'scrollLeft'
        | 'scrollTop'
        | 'scrollWidth'
        | 'scrollHeight'
        | 'clientWidth'
        | 'clientHeight'
        | 'width'
        | 'height'
    } & ConformanceRenderedNumberMatcher)
  | {
      target: ConformanceRenderedTarget
      property: 'contained'
      within?: ConformanceRenderedTarget
      tolerance?: number
      equals: true
    }

export type ConformanceInteractionStep =
  | {
      type: 'pointerMove'
      target: ConformanceTarget
      steps?: number
    }
  | {
      type: 'pointerDown'
      target: ConformanceTarget
    }
  | {
      type: 'pointerUp'
      target: ConformanceTarget
    }
  | {
      type: 'pointerCancel'
    }
  | {
      type: 'pointerLeave'
      view?: string
    }
  | {
      type: 'update'
      revision: number
    }
  | {
      type: 'click'
      target: ConformanceTarget
    }
  | {
      type: 'key'
      key: string
      target?: ConformanceTarget
    }
  | {
      type: 'drag'
      from: ConformanceTarget
      to: ConformanceTarget
      steps?: number
    }
  | {
      type: 'wheel'
      target: ConformanceTarget
      deltaX?: number
      deltaY?: number
      steps?: number
      deltaMode?: 'pixel' | 'line' | 'page'
    }
  | {
      type: 'touchTap'
      target: ConformanceTarget
    }
  | {
      type: 'touchDrag'
      from: ConformanceTarget
      to: ConformanceTarget
      steps?: number
      cancel?: boolean
    }
  | {
      type: 'wait'
      durationMs: number
    }
  | {
      type: 'assert'
      assertions: readonly ConformanceStateAssertion[]
    }
  | {
      type: 'assertRendered'
      assertions: readonly ConformanceRenderedAssertion[]
    }
  | {
      type: 'screenshot'
      name: string
      view?: string
    }

export interface ConformanceInteractionScenario {
  id: string
  steps: readonly ConformanceInteractionStep[]
}

export interface ConformanceCaseMeta {
  schemaVersion: 1
  referenceRenderer?: ConformanceReferenceRenderer
  order: number
  id: string
  title: string
  family: string
  intent: string
  support: ConformanceSupport
  features: readonly string[]
  geometry: readonly ConformanceGeometryExpectation[]
  minimumGeometrySimilarity?: number
  guideAssertions?: readonly ConformanceGuideExpectation[]
  interactionScenarios?: readonly ConformanceInteractionScenario[]
  source: {
    title: string
    url: string
  }
  ai: {
    create: string
    maintain: string
  }
}

export interface ConformanceImplementationModule {
  mount: ConformanceMount
}