---
title: Bar Chart
description: Static, beautifully designed bar charts
image: /og/bar-chart.png
links:
  github: https://github.com/legions-developer/evilcharts/blob/main/src/registry/charts/recharts-bar-chart.tsx
  doc: https://recharts.github.io/en-US/examples/SimpleBarChart/
  api: https://recharts.github.io/en-US/api/BarChart/
---

### Basic Chart

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart
      data={data}
      config={chartConfig}
      className="h-full w-full p-4"
      xDataKey="month"
    >
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Brush formatLabel={(value) => String(value).substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
      <EvilBarChart.Bar dataKey="mobile" variant="default" isClickable />
    </EvilBarChart>
  );
}

```

## Installation


  
  
    ### npm

```bash
npx shadcn@latest add @evilcharts/recharts-bar-chart
```

### yarn

```bash
yarn shadcn@latest add @evilcharts/recharts-bar-chart
```

### bun

```bash
bunx --bun shadcn@latest add @evilcharts/recharts-bar-chart
```

### pnpm

```bash
pnpm dlx shadcn@latest add @evilcharts/recharts-bar-chart
```
  
  
    
      
        ### Install the following dependencies:
        
          ### npm

```bash
npm install recharts motion
```

### yarn

```bash
yarn add recharts motion
```

### bun

```bash
bun add recharts motion
```

### pnpm

```bash
pnpm add recharts motion
```
        
      
      
        ### Copy the code into your project.
         
          Create an `evilcharts` folder with a `charts` subfolder inside `components`, then paste the base recharts-bar-chart code into a new file there.
        
        
          ### components/evilcharts/charts/recharts-bar-chart.tsx

```tsx
"use client";

import {
  Bar as RechartsBar,
  BarChart as RechartsBarChart,
  CartesianGrid,
  Rectangle,
  ReferenceLine,
  XAxis as RechartsXAxis,
  YAxis as RechartsYAxis,
} from "recharts";
import {
  Children,
  createContext,
  isValidElement,
  use,
  useCallback,
  useId,
  useMemo,
  useRef,
  useState,
  type ComponentProps,
  type ReactNode,
} from "react";
import {
  type ChartConfig,
  ChartContainer,
  getColorsCount,
  getLoadingData,
  LoadingIndicator,
} from "@/components/evilcharts/ui/recharts-chart";
import {
  ChartTooltip,
  ChartTooltipContent,
  type TooltipRoundness,
  type TooltipVariant,
} from "@/components/evilcharts/ui/recharts-tooltip";
import { ChartLegend, ChartLegendContent, type ChartLegendVariant } from "@/components/evilcharts/ui/recharts-legend";
import { Brush, EvilBrush, useEvilBrush, type BrushProps, type EvilBrushRange } from "@/components/evilcharts/ui/recharts-brush";
import { ChartBackground, type BackgroundVariant } from "@/components/evilcharts/ui/recharts-background";
import { RectRadius } from "recharts/types/shape/Rectangle";
import { motion, useReducedMotion } from "motion/react";

// Constants
const DEFAULT_BAR_RADIUS = 2;
const LOADING_BAR_DATA_KEY = "loading";
const LOADING_ANIMATION_DURATION = 2000; // in milliseconds
const STACK_ID = "evil-stacked";
const BAR_GROW_DURATION = 0.5; // per-bar grow-in length, in seconds
const BAR_STAGGER = 0.05; // delay between consecutive bars, in seconds
const REVEAL_EASE: [number, number, number, number] = [0, 0.7, 0.5, 1]; // grow-in easing

type BarVariant = "default" | "hatched" | "duotone" | "duotone-reverse" | "gradient" | "stripped";
type StackType = "default" | "stacked" | "percent";
type BarLayout = "vertical" | "horizontal";

/**
 * Order in which bars grow into view. Recharts' own bar animation is permanently
 * disabled — every bar instead grows from its baseline (bottom for vertical
 * layout, left for horizontal), and this controls the stagger sequence.
 *
 * NOTE: the grow-in is a per-frame animation, so it is heavier than a static
 * chart. `"none"` opts out entirely; it is also what a device with the OS
 * "reduce motion" preference falls back to automatically.
 */
type BarAnimationType = "none" | "left-to-right" | "right-to-left" | "center-out" | "edges-in";

// ─────────────────────────────────────────────────────────────────────────────
// Shared context
// ─────────────────────────────────────────────────────────────────────────────

/**
 * Shared state for every part of the chart. Lifted into <EvilBarChart /> so that
 * <Bar />, <XAxis />, <Legend />, and friends can read it without prop drilling.
 * Sub-components are composed freely — the provider is the single source of truth.
 */
type BarChartContextValue = {
  config: ChartConfig; // colors + labels for every series
  isStacked: boolean; // whether bars stack on top of each other
  isHorizontal: boolean; // whether bars are laid out horizontally
  isLoading: boolean; // whether the chart shows its loading skeleton
  barRadius: number; // default corner radius each <Bar /> inherits
  animationType: BarAnimationType; // default grow-in order each <Bar /> inherits
  introStartedAt: number; // timestamp the chart mounted — anchors the one-shot grow-in
  dataLength: number; // number of rows currently rendered
  selectedDataKey: string | null; // currently selected series, or null when none
  selectDataKey: (dataKey: string | null) => void; // sets the selected series
  isMouseInChart: boolean; // whether the pointer is currently over the chart
};

const BarChartContext = createContext<BarChartContextValue | null>(null);

// Reads the chart context, throwing a helpful error when used outside <EvilBarChart />
function useBarChart() {
  const context = use(BarChartContext);

  if (!context) {
    throw new Error("Bar chart parts (<Bar />, <XAxis />, …) must be used within <EvilBarChart />");
  }

  return context;
}

// ─────────────────────────────────────────────────────────────────────────────
// Root container
// ─────────────────────────────────────────────────────────────────────────────

// Validates that every config key also exists on the data row type
type ValidateConfigKeys<TData, TConfig> = {
  [K in keyof TConfig]: K extends keyof TData ? ChartConfig[string] : never;
};

type EvilBarChartBaseProps<
  TData extends Record<string, unknown>,
  TConfig extends Record<string, ChartConfig[string]>,
> = {
  config: TConfig & ValidateConfigKeys<TData, TConfig>; // series colors + labels
  data: TData[]; // rows rendered by the chart
  children: ReactNode; // composed parts — <Bar />, <XAxis />, <Legend />, …
  className?: string; // extra classes for the chart container
  chartProps?: ComponentProps<typeof RechartsBarChart>; // escape hatch for the raw Recharts chart
  stackType?: StackType; // how multiple bars combine
  layout?: BarLayout; // orientation of the bars
  barRadius?: number; // default corner radius for every <Bar />
  animationType?: BarAnimationType; // default grow-in order for every <Bar />
  barGap?: number; // gap between bars within the same category
  barCategoryGap?: number; // gap between categories of bars
  backgroundVariant?: BackgroundVariant; // background pattern drawn behind the chart
  defaultSelectedDataKey?: string | null; // series selected on first render
  onSelectionChange?: (selectedDataKey: string | null) => void; // fires when the selected series changes
  isLoading?: boolean; // shows the animated loading skeleton
  loadingBars?: number; // number of bars in the loading skeleton
  xDataKey?: keyof TData & string; // x-axis key — only needed for the <Brush /> footer
};

type EvilBarChartProps<
  TData extends Record<string, unknown>,
  TConfig extends Record<string, ChartConfig[string]>,
> = EvilBarChartBaseProps<TData, TConfig>;

/**
 * Root of the composible bar chart. Owns the data, the shared context, the
 * loading skeleton, and the optional zoom brush. Everything visual — axes,
 * grid, tooltip, legend, and the bars themselves — is composed as children,
 * so a consumer renders exactly the parts they need.
 */
export function EvilBarChart<
  TData extends Record<string, unknown>,
  TConfig extends Record<string, ChartConfig[string]>,
>({
  config,
  data,
  children,
  className,
  chartProps,
  stackType = "default",
  layout = "vertical",
  barRadius = DEFAULT_BAR_RADIUS,
  animationType = "left-to-right",
  barGap,
  barCategoryGap,
  backgroundVariant,
  defaultSelectedDataKey = null,
  onSelectionChange,
  isLoading = false,
  loadingBars,
  xDataKey,
}: EvilBarChartProps<TData, TConfig>) {
  const chartId = useId().replace(/:/g, ""); // colon-free id keeps CSS/SVG selectors valid
  // Anchors the grow-in to a fixed moment so it plays exactly once — re-renders
  // and Recharts' bar remounts read elapsed time from here instead of replaying.
  // Lazy useState stamps the time once, on the initial render only.
  const [introStartedAt] = useState(() => Date.now());
  const [selectedDataKey, setSelectedDataKey] = useState<string | null>(defaultSelectedDataKey);
  const [isMouseInChart, setIsMouseInChart] = useState(false);
  const { loadingData, onShimmerExit } = useLoadingData(isLoading, loadingBars);
  const { visibleData, brushProps } = useEvilBrush({ data });

  // Brush is a <Brush /> child now (not props): pull it out of the children so
  // it never reaches the Recharts tree, and drive the footer from its props.
  const brush = useMemo(() => {
    // Pull the <Brush> element out of the children (config-only, never rendered
    // into the Recharts tree); toArray also assigns stable keys to the rest.
    const parts = Children.toArray(children);
    const brushEl = parts.find((child) => isValidElement(child) && child.type === Brush);
    const bp = (isValidElement(brushEl) ? brushEl.props : {}) as BrushProps;
    return {
      slot: {
        present: isValidElement(brushEl),
        height: bp.height,
        formatLabel: bp.formatLabel,
        onChange: bp.onChange,
      },
      chartChildren: parts.filter((child) => !(isValidElement(child) && child.type === Brush)),
    };
  }, [children]);
  const showBrush = brush.slot.present;

  const isStacked = stackType === "stacked" || stackType === "percent";
  const isHorizontal = layout === "horizontal";
  const displayData = showBrush && !isLoading ? visibleData : data;

  // Updates selection state and notifies the parent
  const selectDataKey = useCallback(
    (newSelectedDataKey: string | null) => {
      setSelectedDataKey(newSelectedDataKey);
      onSelectionChange?.(newSelectedDataKey);
    },
    [onSelectionChange],
  );

  const contextValue = useMemo<BarChartContextValue>(
    () => ({
      config,
      isStacked,
      isHorizontal,
      isLoading,
      barRadius,
      animationType,
      introStartedAt,
      dataLength: displayData.length,
      selectedDataKey,
      selectDataKey,
      isMouseInChart,
    }),
    [
      config,
      isStacked,
      isHorizontal,
      isLoading,
      barRadius,
      animationType,
      introStartedAt,
      displayData.length,
      selectedDataKey,
      selectDataKey,
      isMouseInChart,
    ],
  );

  return (
    <BarChartContext value={contextValue}>
      <ChartContainer
        className={className}
        config={config}
        footer={
          showBrush &&
          !isLoading && (
            <EvilBrush
              data={data}
              chartConfig={config}
              xDataKey={xDataKey}
              variant="bar"
              barRadius={barRadius}
              height={brush.slot.height}
              formatLabel={brush.slot.formatLabel}
              stacked={isStacked}
              skipStyle
              className="mt-1"
              {...brushProps}
              onChange={(range) => {
                brushProps.onChange(range);
                brush.slot.onChange?.(range);
              }}
            />
          )
        }
      >
        <LoadingIndicator isLoading={isLoading} />
        <RechartsBarChart
          id={chartId}
          accessibilityLayer
          layout={isHorizontal ? "vertical" : "horizontal"}
          data={isLoading ? loadingData : displayData}
          barGap={barGap}
          barCategoryGap={barCategoryGap}
          stackOffset={stackType === "percent" ? "expand" : undefined}
          onMouseEnter={() => setIsMouseInChart(true)}
          onMouseLeave={() => setIsMouseInChart(false)}
          {...chartProps}
        >
          {backgroundVariant && <ChartBackground variant={backgroundVariant} />}
          <ReferenceLine color="white" />
          {brush.chartChildren}
          {isLoading && <LoadingBar chartId={chartId} onShimmerExit={onShimmerExit} />}
        </RechartsBarChart>
      </ChartContainer>
    </BarChartContext>
  );
}

// ─────────────────────────────────────────────────────────────────────────────
// Composible parts
// ─────────────────────────────────────────────────────────────────────────────

type BarProps = {
  dataKey: string; // series key — must exist on the data and config
  variant?: BarVariant; // fill style for this bar only
  radius?: number; // corner radius — falls back to the chart default
  animationType?: BarAnimationType; // grow-in order — falls back to the chart default
  isClickable?: boolean; // lets this bar be selected by clicking it
  enableHoverHighlight?: boolean; // dims this bar while another bar is hovered
  glowing?: boolean; // applies a soft outer glow to this bar
  bufferBar?: boolean; // renders the last data point as a hatched "buffer" bar
  barProps?: ComponentProps<typeof RechartsBar>; // escape hatch for raw Recharts Bar props
};

/**
 * A single bar series. Each <Bar /> is fully self-contained: it generates its
 * own gradient/pattern definitions under a unique id, so any number of bars —
 * each with its own variant, radius, glow, and clickability — can live in one
 * chart without style collisions.
 */
function Bar({
  dataKey,
  variant = "default",
  radius,
  animationType,
  isClickable = false,
  enableHoverHighlight = false,
  glowing = false,
  bufferBar = false,
  barProps,
}: BarProps) {
  const {
    config,
    isStacked,
    isHorizontal,
    isLoading,
    barRadius: defaultRadius,
    animationType: defaultAnimation,
    introStartedAt,
    dataLength,
    selectedDataKey,
    selectDataKey,
    isMouseInChart,
  } = useBarChart();
  const id = useId().replace(/:/g, ""); // unique id scopes this bar's style defs
  // Devices set to "reduce motion" skip the grow-in animation entirely
  const shouldReduceMotion = useReducedMotion();

  // The root renders the skeleton bar while loading, so real bars step aside
  if (isLoading) return null;

  const resolvedRadius = radius ?? defaultRadius;
  const isSelected = selectedDataKey === dataKey;

  // The grow-in is a per-frame animation — heavier than a static chart — so
  // `"none"` and the OS reduce-motion preference both opt out of it.
  const revealType: BarAnimationType = shouldReduceMotion
    ? "none"
    : (animationType ?? defaultAnimation);

  const customBarProps = {
    id,
    dataKey,
    variant,
    barRadius: resolvedRadius,
    glowing,
    bufferBar,
    isClickable,
    enableHoverHighlight,
    isMouseInChart,
    isHorizontal,
    introStartedAt,
    selectedDataKey,
    dataLength,
    onClick: () => {
      if (!isClickable) return;
      // Clicking the selected bar clears the selection, otherwise selects it
      selectDataKey(isSelected ? null : dataKey);
    },
  };

  return (
    <>
      <RechartsBar
        dataKey={dataKey}
        stackId={isStacked ? STACK_ID : undefined}
        fill={`url(#${id}-colors-${dataKey})`}
        radius={resolvedRadius}
        // Recharts' built-in bar animation is permanently disabled — every bar
        // instead grows in from its baseline via the staggered motion.dev shape.
        isAnimationActive={false}
        style={isClickable || enableHoverHighlight ? { cursor: "pointer" } : undefined}
        shape={(props: unknown) => (
          <CustomBar {...(props as BarShapeProps)} {...customBarProps} animationType={revealType} />
        )}
        activeBar={(props: unknown) => (
          // The active (hovered) bar must never re-run the grow-in animation
          <CustomBar {...(props as BarShapeProps)} {...customBarProps} animationType="none" />
        )}
        {...barProps}
      />
      <defs>
        <ColorGradient id={id} dataKey={dataKey} config={config} />
        {variant === "hatched" && <HatchedPattern id={id} dataKey={dataKey} />}
        {variant === "duotone" && <DuotonePattern id={id} dataKey={dataKey} config={config} />}
        {variant === "duotone-reverse" && (
          <DuotoneReversePattern id={id} dataKey={dataKey} config={config} />
        )}
        {variant === "gradient" && <GradientPattern id={id} dataKey={dataKey} />}
        {variant === "stripped" && <StrippedPattern id={id} dataKey={dataKey} />}
        {bufferBar && <BufferHatchedPattern id={id} dataKey={dataKey} />}
        {glowing && <GlowFilter id={id} dataKey={dataKey} />}
      </defs>
    </>
  );
}

type XAxisProps = ComponentProps<typeof RechartsXAxis>;

/**
 * The category axis. Ships with the chart's flat default styling and forwards
 * every Recharts XAxis prop, so `dataKey`, `tickFormatter`, etc. are passed
 * straight through. Hidden automatically while the chart is loading. Resolves
 * its axis type from the chart layout — categorical when vertical, numeric
 * when the bars run horizontally.
 */
function XAxis({
  tickLine = false,
  axisLine = false,
  tickMargin = 8,
  minTickGap = 8,
  type,
  ...props
}: XAxisProps) {
  const { isLoading, isHorizontal } = useBarChart();

  if (isLoading) return null;

  return (
    <RechartsXAxis
      tickLine={tickLine}
      axisLine={axisLine}
      tickMargin={tickMargin}
      minTickGap={minTickGap}
      type={type ?? (isHorizontal ? "number" : "category")}
      {...props}
    />
  );
}

type YAxisProps = ComponentProps<typeof RechartsYAxis>;

/**
 * The value axis. Forwards every Recharts YAxis prop and resolves its axis type
 * from the chart layout — numeric when vertical, categorical when the bars run
 * horizontally. Hidden automatically while the chart is loading.
 */
function YAxis({
  tickLine = false,
  axisLine = false,
  tickMargin = 8,
  minTickGap = 8,
  width = "auto",
  type,
  ...props
}: YAxisProps) {
  const { isLoading, isHorizontal } = useBarChart();

  if (isLoading) return null;

  return (
    <RechartsYAxis
      tickLine={tickLine}
      axisLine={axisLine}
      tickMargin={tickMargin}
      minTickGap={minTickGap}
      width={width}
      type={type ?? (isHorizontal ? "category" : "number")}
      {...props}
    />
  );
}

type GridProps = ComponentProps<typeof CartesianGrid>;

/**
 * The background grid lines. Defaults to dashed lines aligned to the value
 * axis based on the chart layout, and forwards every Recharts CartesianGrid
 * prop for full control.
 */
function Grid({ strokeDasharray = "3 3", vertical, horizontal, ...props }: GridProps) {
  const { isHorizontal } = useBarChart();

  return (
    <CartesianGrid
      strokeDasharray={strokeDasharray}
      vertical={vertical ?? isHorizontal}
      horizontal={horizontal ?? !isHorizontal}
      {...props}
    />
  );
}

type TooltipProps = {
  variant?: TooltipVariant; // visual style of the tooltip surface
  roundness?: TooltipRoundness; // border-radius of the tooltip
  defaultIndex?: number; // data index shown by default with no hover
};

/**
 * The hover tooltip. Reads the chart's selection from context so its content
 * dims unselected series. Hidden automatically while the chart is loading.
 */
function Tooltip({ variant, roundness, defaultIndex }: TooltipProps) {
  const { isLoading, selectedDataKey } = useBarChart();

  if (isLoading) return null;

  return (
    <ChartTooltip
      cursor={false}
      defaultIndex={defaultIndex}
      content={
        <ChartTooltipContent selected={selectedDataKey} roundness={roundness} variant={variant} />
      }
    />
  );
}

type LegendProps = {
  variant?: ChartLegendVariant; // visual style of the legend indicators
  align?: "left" | "center" | "right"; // horizontal placement
  verticalAlign?: "top" | "middle" | "bottom"; // vertical placement
  isClickable?: boolean; // lets each entry toggle selection of its series
};

/**
 * The series legend. When `isClickable` is set, each entry toggles selection of
 * its series, driving the shared selection state read by every <Bar />.
 */
function Legend({
  variant,
  align = "right",
  verticalAlign = "top",
  isClickable = false,
}: LegendProps) {
  const { selectedDataKey, selectDataKey } = useBarChart();

  return (
    <ChartLegend
      verticalAlign={verticalAlign}
      align={align}
      content={
        <ChartLegendContent
          selected={selectedDataKey}
          onSelectChange={selectDataKey}
          isClickable={isClickable}
          variant={variant}
        />
      }
    />
  );
}

// ─────────────────────────────────────────────────────────────────────────────
// Custom bar shape
// ─────────────────────────────────────────────────────────────────────────────

// Raw geometry Recharts hands to a custom bar shape
type BarShapeProps = {
  x?: number;
  y?: number;
  width?: number;
  height?: number;
  fill?: string;
  fillOpacity?: number;
  dataKey?: string;
  index?: number;
  [key: string]: unknown;
};

// Per-series config the <Bar /> threads into every CustomBar render
type CustomBarProps = {
  id: string;
  dataKey: string;
  variant: BarVariant;
  barRadius: number;
  glowing?: boolean;
  bufferBar?: boolean;
  isClickable?: boolean;
  enableHoverHighlight?: boolean;
  isMouseInChart?: boolean;
  isHorizontal?: boolean;
  animationType?: BarAnimationType;
  introStartedAt?: number;
  selectedDataKey?: string | null;
  isActive?: boolean;
  dataLength?: number;
  onClick?: () => void;
} & BarShapeProps;

/**
 * Custom bar shape. Renders the visible bar painted by the owning <Bar />'s
 * variant pattern, with an invisible full-height rectangle behind it to keep
 * the whole column hoverable and clickable.
 */
const CustomBar = (props: CustomBarProps) => {
  const {
    x = 0,
    y = 0,
    width = 0,
    height = 0,
    id,
    dataKey,
    variant,
    barRadius,
    glowing,
    bufferBar,
    isClickable,
    enableHoverHighlight,
    isMouseInChart,
    isHorizontal = false,
    animationType = "none",
    introStartedAt = 0,
    selectedDataKey,
    isActive,
    dataLength = 0,
    onClick,
  } = props;

  const index = typeof props.index === "number" ? props.index : -1;
  const isLastBar = bufferBar && dataLength > 0 && index === dataLength - 1;
  const isStripped = variant === "stripped";
  const grow = getBarGrowAnimation(animationType, index, dataLength, isHorizontal, introStartedAt);

  const fill = isLastBar
    ? `url(#${id}-buffer-hatched-${dataKey})`
    : getVariantFill(variant, id, dataKey);
  const filter = glowing ? `url(#${id}-bar-glow-${dataKey})` : undefined;

  const fillOpacity = getBarOpacity({
    isClickable,
    selectedDataKey,
    dataKey,
    enableHoverHighlight,
    isMouseInChart,
    isActive,
  });
  const cursorStyle = isClickable || enableHoverHighlight ? { cursor: "pointer" } : undefined;

  // Stripped bars round only their top corners; every other variant rounds all four
  const radius: RectRadius = isStripped ? [barRadius, barRadius, 0, 0] : barRadius;

  // The visible, painted bar — plus the stripped variant's solid top strip
  const visibleBar = (
    <>
      <Rectangle
        x={x}
        y={y}
        width={width}
        opacity={fillOpacity}
        height={Math.max(0, height - 3)}
        radius={radius}
        fill={fill}
        filter={filter}
        stroke={isLastBar ? `url(#${id}-colors-${dataKey})` : undefined}
        strokeWidth={isLastBar ? 1 : undefined}
      />
      {isStripped && (
        <Rectangle
          x={x}
          y={y - 4}
          width={width}
          height={2}
          radius={1}
          fill={`url(#${id}-colors-${dataKey})`}
        />
      )}
    </>
  );

  return (
    <g style={cursorStyle} onClick={onClick}>
      {/* Full-height invisible rect keeps the whole column hoverable/clickable */}
      <Rectangle {...props} fill="transparent" />
      {/* The painted bar grows in from its baseline; the hit rect above stays put */}
      {grow ? (
        <motion.g
          initial={grow.initial}
          animate={grow.animate}
          transition={grow.transition}
          style={grow.style}
        >
          {visibleBar}
        </motion.g>
      ) : (
        visibleBar
      )}
    </g>
  );
};

/**
 * Builds the motion.dev grow-in animation for a single bar, or returns `null`
 * when the bar should render statically (`"none"`, reduced motion, an unknown
 * index, or — crucially — once the bar has already finished growing).
 *
 * Every bar grows from its baseline — `scaleY` from the bottom for vertical
 * layout, `scaleX` from the left for horizontal — and `animationType` decides
 * the stagger order, so the chart fills in one bar at a time.
 *
 * The intro is anchored to `introStartedAt` (stamped once when the chart
 * mounts) rather than to component mount. Recharts remounts every bar whenever
 * the chart re-renders — e.g. on hover-highlight — so a mount-based animation
 * would replay endlessly. Reading elapsed time instead makes it a true
 * one-shot: a bar past its window renders static, and a bar caught mid-grow
 * resumes from the progress it should already be at.
 */
const getBarGrowAnimation = (
  animationType: BarAnimationType,
  index: number,
  dataLength: number,
  isHorizontal: boolean,
  introStartedAt: number,
) => {
  if (animationType === "none" || index < 0 || dataLength <= 0) return null;

  const lastIndex = dataLength - 1;
  const center = lastIndex / 2;

  // How many bars this one waits behind before it starts growing
  let step: number;
  switch (animationType) {
    case "right-to-left":
      step = lastIndex - index;
      break;
    case "center-out":
      step = Math.abs(index - center);
      break;
    case "edges-in":
      step = center - Math.abs(index - center);
      break;
    default: // left-to-right
      step = index;
  }

  const startMs = step * BAR_STAGGER * 1000;
  const durationMs = BAR_GROW_DURATION * 1000;
  const endMs = startMs + durationMs;
  const elapsed = Date.now() - introStartedAt;

  // Already finished — render static so re-renders/remounts can't replay it
  if (elapsed >= endMs) return null;

  // Resume from wherever this bar should already be: 0 before it starts,
  // partway through if a remount caught it mid-grow.
  const from = elapsed <= startMs ? 0 : (elapsed - startMs) / durationMs;
  const transition = {
    duration: (endMs - Math.max(elapsed, startMs)) / 1000,
    ease: REVEAL_EASE,
    delay: Math.max(0, startMs - elapsed) / 1000,
  };

  // Horizontal bars grow rightward from the left edge, vertical from the bottom
  return isHorizontal
    ? { initial: { scaleX: from }, animate: { scaleX: 1 }, transition, style: { originX: 0 } }
    : { initial: { scaleY: from }, animate: { scaleY: 1 }, transition, style: { originY: 1 } };
};

// ─────────────────────────────────────────────────────────────────────────────
// Selection + fill helpers
// ─────────────────────────────────────────────────────────────────────────────

// Resolves the SVG paint reference for a bar's fill based on its variant
const getVariantFill = (variant: BarVariant, id: string, dataKey: string): string => {
  switch (variant) {
    case "hatched":
      return `url(#${id}-hatched-${dataKey})`;
    case "duotone":
      return `url(#${id}-duotone-${dataKey})`;
    case "duotone-reverse":
      return `url(#${id}-duotone-reverse-${dataKey})`;
    case "gradient":
      return `url(#${id}-gradient-${dataKey})`;
    case "stripped":
      return `url(#${id}-stripped-${dataKey})`;
    default:
      return `url(#${id}-colors-${dataKey})`;
  }
};

// Computes bar opacity from the click selection and hover-highlight state
const getBarOpacity = ({
  isClickable,
  selectedDataKey,
  dataKey,
  enableHoverHighlight,
  isMouseInChart,
  isActive,
}: {
  isClickable?: boolean;
  selectedDataKey?: string | null;
  dataKey: string;
  enableHoverHighlight?: boolean;
  isMouseInChart?: boolean;
  isActive?: boolean;
}) => {
  const isSelectedDataKey = selectedDataKey === null || selectedDataKey === dataKey;
  const clickOpacity = isClickable && selectedDataKey !== null ? (isSelectedDataKey ? 1 : 0.15) : 1;

  // While hovering, the hovered bar keeps its click opacity and the rest dim further
  if (enableHoverHighlight && isMouseInChart) {
    return isActive ? clickOpacity : clickOpacity * 0.3;
  }

  return clickOpacity;
};

// ─────────────────────────────────────────────────────────────────────────────
// Style definitions — one set per <Bar />, scoped to its unique id
// ─────────────────────────────────────────────────────────────────────────────

type StyleProps = {
  id: string; // unique id of the owning <Bar />
  dataKey: string; // series key the colors belong to
};

/**
 * Vertical top-to-bottom color gradient for a series. Always rendered — every
 * fill variant and the buffer-bar stroke paint from this single gradient.
 */
const ColorGradient = ({ id, dataKey, config }: StyleProps & { config: ChartConfig }) => {
  const colorsCount = getColorsCount(config[dataKey] ?? {});

  return (
    <linearGradient id={`${id}-colors-${dataKey}`} x1="0" y1="0" x2="0" y2="1">
      {colorsCount === 1 ? (
        <>
          <stop offset="0%" stopColor={`var(--color-${dataKey}-0)`} />
          <stop offset="100%" stopColor={`var(--color-${dataKey}-0)`} />
        </>
      ) : (
        Array.from({ length: colorsCount }, (_, index) => {
          const offset = `${(index / (colorsCount - 1)) * 100}%`;
          return (
            <stop
              key={offset}
              offset={offset}
              stopColor={`var(--color-${dataKey}-${index}, var(--color-${dataKey}-0))`}
            />
          );
        })
      )}
    </linearGradient>
  );
};

/** Diagonal hatched-stripe fill, masked from the series color gradient. */
const HatchedPattern = ({ id, dataKey }: StyleProps) => {
  return (
    <>
      <pattern
        id={`${id}-hatched-mask-pattern`}
        x="0"
        y="0"
        width="5"
        height="5"
        patternUnits="userSpaceOnUse"
        patternTransform="rotate(-45)"
      >
        <rect width="5" height="5" fill="white" fillOpacity={0.3} />
        <rect width="1.5" height="5" fill="white" fillOpacity={1} />
      </pattern>
      <mask id={`${id}-hatched-mask-${dataKey}`}>
        <rect width="100%" height="100%" fill={`url(#${id}-hatched-mask-pattern)`} />
      </mask>
      <pattern
        id={`${id}-hatched-${dataKey}`}
        patternUnits="userSpaceOnUse"
        width="100%"
        height="100%"
      >
        <rect
          width="100%"
          height="100%"
          fill={`url(#${id}-colors-${dataKey})`}
          mask={`url(#${id}-hatched-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Hatched diagonal lines with no background fill, used for the buffer bar. */
const BufferHatchedPattern = ({ id, dataKey }: StyleProps) => {
  return (
    <>
      <pattern
        id={`${id}-buffer-hatched-mask-pattern`}
        x="0"
        y="0"
        width="5"
        height="5"
        patternUnits="userSpaceOnUse"
        patternTransform="rotate(-45)"
      >
        <rect width="5" height="5" fill="black" fillOpacity={0} />
        <rect width="1" height="5" fill="white" fillOpacity={1} />
      </pattern>
      <mask id={`${id}-buffer-hatched-mask-${dataKey}`}>
        <rect width="100%" height="100%" fill={`url(#${id}-buffer-hatched-mask-pattern)`} />
      </mask>
      <pattern
        id={`${id}-buffer-hatched-${dataKey}`}
        patternUnits="userSpaceOnUse"
        width="100%"
        height="100%"
      >
        <rect
          width="100%"
          height="100%"
          fill={`url(#${id}-colors-${dataKey})`}
          mask={`url(#${id}-buffer-hatched-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Two-tone fill — a half-faded, half-solid split applied per bar bounding box. */
const DuotonePattern = ({ id, dataKey, config }: StyleProps & { config: ChartConfig }) => {
  const colorsCount = getColorsCount(config[dataKey] ?? {});

  return (
    <>
      <linearGradient
        id={`${id}-duotone-mask-gradient-${dataKey}`}
        gradientUnits="objectBoundingBox"
        x1="0"
        y1="0"
        x2="1"
        y2="0"
      >
        <stop offset="50%" stopColor="white" stopOpacity={0.4} />
        <stop offset="50%" stopColor="white" stopOpacity={1} />
      </linearGradient>
      <linearGradient
        id={`${id}-duotone-colors-${dataKey}`}
        gradientUnits="objectBoundingBox"
        x1="0"
        y1="0"
        x2="0"
        y2="1"
      >
        {colorsCount === 1 ? (
          <>
            <stop offset="0%" stopColor={`var(--color-${dataKey}-0)`} />
            <stop offset="100%" stopColor={`var(--color-${dataKey}-0)`} />
          </>
        ) : (
          Array.from({ length: colorsCount }, (_, index) => {
            const offset = `${(index / (colorsCount - 1)) * 100}%`;
            return (
              <stop
                key={offset}
                offset={offset}
                stopColor={`var(--color-${dataKey}-${index}, var(--color-${dataKey}-0))`}
              />
            );
          })
        )}
      </linearGradient>
      <mask id={`${id}-duotone-mask-${dataKey}`} maskContentUnits="objectBoundingBox">
        <rect
          x="0"
          y="0"
          width="1"
          height="1"
          fill={`url(#${id}-duotone-mask-gradient-${dataKey})`}
        />
      </mask>
      <pattern
        id={`${id}-duotone-${dataKey}`}
        patternUnits="objectBoundingBox"
        patternContentUnits="objectBoundingBox"
        width="1"
        height="1"
      >
        <rect
          x="0"
          y="0"
          width="1"
          height="1"
          fill={`url(#${id}-duotone-colors-${dataKey})`}
          mask={`url(#${id}-duotone-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Two-tone fill with the solid and faded halves reversed from `duotone`. */
const DuotoneReversePattern = ({ id, dataKey, config }: StyleProps & { config: ChartConfig }) => {
  const colorsCount = getColorsCount(config[dataKey] ?? {});

  return (
    <>
      <linearGradient
        id={`${id}-duotone-reverse-mask-gradient-${dataKey}`}
        gradientUnits="objectBoundingBox"
        x1="0"
        y1="0"
        x2="1"
        y2="0"
      >
        <stop offset="50%" stopColor="white" stopOpacity={1} />
        <stop offset="50%" stopColor="white" stopOpacity={0.4} />
      </linearGradient>
      <linearGradient
        id={`${id}-duotone-reverse-colors-${dataKey}`}
        gradientUnits="objectBoundingBox"
        x1="0"
        y1="0"
        x2="0"
        y2="1"
      >
        {colorsCount === 1 ? (
          <>
            <stop offset="0%" stopColor={`var(--color-${dataKey}-0)`} />
            <stop offset="100%" stopColor={`var(--color-${dataKey}-0)`} />
          </>
        ) : (
          Array.from({ length: colorsCount }, (_, index) => {
            const offset = `${(index / (colorsCount - 1)) * 100}%`;
            return (
              <stop
                key={offset}
                offset={offset}
                stopColor={`var(--color-${dataKey}-${index}, var(--color-${dataKey}-0))`}
              />
            );
          })
        )}
      </linearGradient>
      <mask id={`${id}-duotone-reverse-mask-${dataKey}`} maskContentUnits="objectBoundingBox">
        <rect
          x="0"
          y="0"
          width="1"
          height="1"
          fill={`url(#${id}-duotone-reverse-mask-gradient-${dataKey})`}
        />
      </mask>
      <pattern
        id={`${id}-duotone-reverse-${dataKey}`}
        patternUnits="objectBoundingBox"
        patternContentUnits="objectBoundingBox"
        width="1"
        height="1"
      >
        <rect
          x="0"
          y="0"
          width="1"
          height="1"
          fill={`url(#${id}-duotone-reverse-colors-${dataKey})`}
          mask={`url(#${id}-duotone-reverse-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Gradient fill that fades the series color from solid at the top to clear. */
const GradientPattern = ({ id, dataKey }: StyleProps) => {
  return (
    <>
      <linearGradient id={`${id}-gradient-mask-gradient`} x1="0" y1="0" x2="0" y2="1">
        <stop offset="20%" stopColor="white" stopOpacity={1} />
        <stop offset="90%" stopColor="white" stopOpacity={0} />
      </linearGradient>
      <mask id={`${id}-gradient-mask-${dataKey}`}>
        <rect width="100%" height="100%" fill={`url(#${id}-gradient-mask-gradient)`} />
      </mask>
      <pattern
        id={`${id}-gradient-${dataKey}`}
        patternUnits="userSpaceOnUse"
        width="100%"
        height="100%"
      >
        <rect
          width="100%"
          height="100%"
          fill={`url(#${id}-colors-${dataKey})`}
          mask={`url(#${id}-gradient-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Low-opacity body fill, paired with a solid top strip drawn by CustomBar. */
const StrippedPattern = ({ id, dataKey }: StyleProps) => {
  return (
    <>
      <linearGradient id={`${id}-stripped-mask-gradient`} x1="0" y1="0" x2="0" y2="1">
        <stop offset="0%" stopColor="white" stopOpacity={0.2} />
        <stop offset="100%" stopColor="white" stopOpacity={0.2} />
      </linearGradient>
      <mask id={`${id}-stripped-mask-${dataKey}`}>
        <rect width="100%" height="100%" fill={`url(#${id}-stripped-mask-gradient)`} />
      </mask>
      <pattern
        id={`${id}-stripped-${dataKey}`}
        patternUnits="userSpaceOnUse"
        width="100%"
        height="100%"
      >
        <rect
          width="100%"
          height="100%"
          fill={`url(#${id}-colors-${dataKey})`}
          mask={`url(#${id}-stripped-mask-${dataKey})`}
        />
      </pattern>
    </>
  );
};

/** Soft outer-glow filter applied to a glowing bar. */
const GlowFilter = ({ id, dataKey }: StyleProps) => {
  return (
    <filter id={`${id}-bar-glow-${dataKey}`} x="-100%" y="-100%" width="300%" height="300%">
      <feGaussianBlur in="SourceGraphic" stdDeviation="8" result="blur" />
      <feColorMatrix
        in="blur"
        type="matrix"
        values="1 0 0 0 0
                0 1 0 0 0
                0 0 1 0 0
                0 0 0 0.5 0"
        result="glow"
      />
      <feMerge>
        <feMergeNode in="glow" />
        <feMergeNode in="SourceGraphic" />
      </feMerge>
    </filter>
  );
};

// ─────────────────────────────────────────────────────────────────────────────
// Loading skeleton
// ─────────────────────────────────────────────────────────────────────────────

// Builds bell-curve eased gradient stops for the loading shimmer
const generateEasedGradientStops = (
  steps: number = 17,
  minOpacity: number = 0.05,
  maxOpacity: number = 0.9,
) => {
  return Array.from({ length: steps }, (_, i) => {
    const t = i / (steps - 1); // 0 to 1
    // Sine-based bell curve easing: peaks at center (t=0.5), smooth falloff at edges
    const eased = Math.sin(t * Math.PI) ** 2;
    const opacity = minOpacity + eased * (maxOpacity - minOpacity);
    return { offset: `${(t * 100).toFixed(0)}%`, opacity: Number(opacity.toFixed(3)) };
  });
};

/**
 * Hook to manage loading data with pixel-perfect shimmer synchronization.
 *
 * Uses motion.dev's onUpdate callback to ensure chart data is only regenerated
 * when the shimmer has completely exited the visible area. This eliminates
 * timing drift issues from setTimeout/setInterval.
 */
export function useLoadingData(isLoading: boolean, loadingBars: number = 12) {
  const [loadingDataKey, setLoadingDataKey] = useState(false);

  // Callback fired by motion.dev when the shimmer exits the visible area
  const onShimmerExit = useCallback(() => {
    if (isLoading) {
      setLoadingDataKey((prev) => !prev);
    }
  }, [isLoading]);

  const loadingData = useMemo(
    () => getLoadingData(loadingBars, 20, 80),
    // loadingDataKey toggle triggers re-computation when the shimmer exits
    // eslint-disable-next-line react-hooks/exhaustive-deps
    [loadingBars, loadingDataKey],
  );

  return { loadingData, onShimmerExit };
}

/**
 * The skeleton bar shown while the chart is loading. Rendered by the root in
 * place of the real bars, paired with its own masked shimmer pattern.
 */
const LoadingBar = ({ chartId, onShimmerExit }: { chartId: string; onShimmerExit: () => void }) => {
  return (
    <>
      <RechartsBar
        dataKey={LOADING_BAR_DATA_KEY}
        fill="currentColor"
        fillOpacity={0.15}
        radius={DEFAULT_BAR_RADIUS}
        isAnimationActive={false}
        legendType="none"
        style={{ mask: `url(#${chartId}-loading-mask)` }}
      />
      <defs>
        <LoadingBarPattern chartId={chartId} onShimmerExit={onShimmerExit} />
      </defs>
    </>
  );
};

/**
 * Animated shimmer pattern for the loading skeleton.
 *
 * The visible chart area is normalized to 0-1, the shimmer gradient has width 1,
 * and the pattern is 3x wide so the shimmer has buffer on both sides. The motion
 * rect travels x from -1 to 2; onShimmerExit fires as it crosses x=1, letting the
 * data swap happen while the shimmer is off-screen for a seamless loop.
 */
const LoadingBarPattern = ({
  chartId,
  onShimmerExit,
}: {
  chartId: string;
  onShimmerExit: () => void;
}) => {
  const gradientStops = generateEasedGradientStops();

  // 1 (left buffer) + 1 (visible) + 1 (right buffer)
  const patternWidth = 3;
  const startX = -1;
  const endX = 2;

  // Tracks the last x value to detect the exit threshold crossing
  const lastXRef = useRef(startX);

  return (
    <>
      <linearGradient id={`${chartId}-loading-mask-gradient`} x1="0" y1="0" x2="1" y2="0">
        {gradientStops.map(({ offset, opacity }) => (
          <stop key={offset} offset={offset} stopColor="white" stopOpacity={opacity} />
        ))}
      </linearGradient>
      <pattern
        id={`${chartId}-loading-mask-pattern`}
        patternUnits="objectBoundingBox"
        patternContentUnits="objectBoundingBox"
        patternTransform="rotate(25)"
        width={patternWidth}
        height="1"
        x="0"
        y="0"
      >
        <motion.rect
          y="0"
          width="1"
          height="1"
          fill={`url(#${chartId}-loading-mask-gradient)`}
          initial={{ x: startX }}
          animate={{ x: endX }}
          transition={{
            duration: LOADING_ANIMATION_DURATION / 1000,
            ease: "linear",
            repeat: Infinity,
            repeatType: "loop",
          }}
          onUpdate={(latest) => {
            const xValue = typeof latest.x === "number" ? latest.x : startX;
            const lastX = lastXRef.current;

            // Fire once per loop, when the shimmer fully exits the visible area
            if (xValue >= 1 && lastX < 1) {
              onShimmerExit();
            }

            lastXRef.current = xValue;
          }}
        />
      </pattern>
      <mask id={`${chartId}-loading-mask`} maskUnits="userSpaceOnUse">
        <rect width="100%" height="100%" fill={`url(#${chartId}-loading-mask-pattern)`} />
      </mask>
    </>
  );
};

// Compound API: every part hangs off the root as a static member, so a consumer
// writes <EvilBarChart.Bar/>, <EvilBarChart.Tooltip/>, … from a single import
// — no colliding named marker exports when several charts share one file.
EvilBarChart.Bar = Bar;
EvilBarChart.XAxis = XAxis;
EvilBarChart.YAxis = YAxis;
EvilBarChart.Grid = Grid;
EvilBarChart.Tooltip = Tooltip;
EvilBarChart.Legend = Legend;
EvilBarChart.Brush = Brush;

```
        
      
       
        ### Add the chart component.
        
          The chart needs these components to render. Make a `ui` folder inside `evilcharts` and paste the code there.

          Below is the main chart component.
        
        
          ### components/evilcharts/ui/recharts-chart.tsx

```tsx
"use client";

import * as RechartsPrimitive from "recharts";
import { cn } from "@/lib/utils";
import * as React from "react";

// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const;

type ThemeKey = keyof typeof THEMES;

// All Keys are optional at first
type ThemeColorsBase = {
  [K in ThemeKey]?: string[];
};

// Require at least one theme key
type AtLeastOneThemeColor = {
  [K in ThemeKey]: Required<Pick<ThemeColorsBase, K>> & Partial<Omit<ThemeColorsBase, K>>;
}[ThemeKey];

const VALID_THEME_KEYS = Object.keys(THEMES) as ThemeKey[];

// Validation for chart config colors at runtime
function validateChartConfigColors(config: ChartConfig): void {
  for (const [key, value] of Object.entries(config)) {
    if (value.colors) {
      const hasValidThemeKey = VALID_THEME_KEYS.some(
        (themeKey) => value.colors?.[themeKey] !== undefined,
      );

      if (!hasValidThemeKey) {
        throw new Error(
          `[EvilCharts] Invalid chart config for "${key}": colors object must have at least one theme key (${VALID_THEME_KEYS.join(", ")}). Received empty object or invalid keys.`,
        );
      }
    }
  }
}

export type ChartConfig = Record<
  string,
  {
    label?: React.ReactNode;
    icon?: React.ComponentType;
    colors?: AtLeastOneThemeColor;
  }
>;

interface ChartContextProps {
  config: ChartConfig;
}

const ChartContext = React.createContext<ChartContextProps | null>(null);

export function useChart() {
  const context = React.useContext(ChartContext);

  if (!context) {
    throw new Error("useChart must be used within a <ChartContainer />");
  }

  return context;
}

interface ChartContainerProps
  extends
    Omit<React.ComponentProps<"div">, "children">,
    Pick<
      React.ComponentProps<typeof RechartsPrimitive.ResponsiveContainer>,
      | "initialDimension"
      | "aspect"
      | "debounce"
      | "minHeight"
      | "minWidth"
      | "maxHeight"
      | "height"
      | "width"
      | "onResize"
      | "children"
    > {
  config: ChartConfig;
  innerResponsiveContainerStyle?: React.ComponentProps<
    typeof RechartsPrimitive.ResponsiveContainer
  >["style"];
  /** Optional content rendered below the chart (e.g. EvilBrush) */
  footer?: React.ReactNode;
}

function ChartContainer({
  id,
  config,
  initialDimension = { width: 320, height: 200 },
  className,
  children,
  footer,
  ...props
}: Readonly<ChartContainerProps>) {
  const uniqueId = React.useId();
  const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`;

  // Validate chart config at runtime
  validateChartConfigColors(config);

  return (
    <ChartContext.Provider value={{ config }}>
      <div
        data-slot="chart"
        data-chart={chartId}
        className={cn(
          "min-h-0 w-full flex-1",
          "[&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border relative flex flex-col justify-center text-xs [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
          !footer && "aspect-video",
          className,
        )}
        {...props}
      >
        <ChartStyle id={chartId} config={config} />
        <RechartsPrimitive.ResponsiveContainer
          className="min-h-0 w-full flex-1"
          initialDimension={initialDimension}
        >
          {children}
        </RechartsPrimitive.ResponsiveContainer>
        {footer}
      </div>
    </ChartContext.Provider>
  );
}

function LoadingIndicator({ isLoading }: { isLoading: boolean }) {
  if (!isLoading) {
    return null;
  }

  return (
    <div className="pointer-events-none absolute inset-0 z-20 flex items-center justify-center">
      <div className="text-primary bg-background flex items-center justify-center gap-2 rounded-md border px-2 py-0.5 text-sm">
        <div className="border-border border-t-primary h-3 w-3 animate-spin rounded-full border" />
        <span>Loading</span>
      </div>
    </div>
  );
}

// Distribute colors evenly across slots, extra slots go to last color(s)
// Example: 2 colors for 4 slots → [red, red, pink, pink]
// Example: 3 colors for 4 slots → [red, pink, blue, blue]
function distributeColors(colorsArray: string[], maxCount: number): string[] {
  const availableCount = colorsArray.length;
  if (availableCount >= maxCount) {
    return colorsArray.slice(0, maxCount);
  }

  const result: string[] = [];
  const baseSlots = Math.floor(maxCount / availableCount);
  const extraSlots = maxCount % availableCount;

  // First (availableCount - extraSlots) colors get baseSlots each
  // Last extraSlots colors get (baseSlots + 1) each
  for (let colorIdx = 0; colorIdx < availableCount; colorIdx++) {
    const isExtraColor = colorIdx >= availableCount - extraSlots;
    const slotsForThisColor = baseSlots + (isExtraColor ? 1 : 0);
    for (let j = 0; j < slotsForThisColor; j++) {
      result.push(colorsArray[colorIdx]);
    }
  }

  return result;
}

const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
  const colorConfig = Object.entries(config).filter(([, config]) => config.colors);

  if (!colorConfig.length) {
    return null;
  }

  const generateCssVars = (theme: keyof typeof THEMES) =>
    colorConfig
      .flatMap(([key, itemConfig]) => {
        const colorsArray = itemConfig.colors?.[theme];
        if (!colorsArray || !Array.isArray(colorsArray) || colorsArray.length === 0) {
          return [];
        }

        // Get max count across all themes for this key
        const maxCount = getColorsCount(itemConfig);

        // Distribute colors evenly across all required slots
        const distributedColors = distributeColors(colorsArray, maxCount);

        return distributedColors.map((color, index) => `  --color-${key}-${index}: ${color};`);
      })
      .filter(Boolean)
      .join("\n");

  const css = Object.entries(THEMES)
    .map(
      ([theme, prefix]) =>
        `${prefix} [data-chart=${id}] {\n${generateCssVars(theme as keyof typeof THEMES)}\n}`,
    )
    .join("\n");

  return <style dangerouslySetInnerHTML={{ __html: css }} />;
};

// Helper to extract item config from a payload.
export function getPayloadConfigFromPayload(config: ChartConfig, payload: unknown, key: string) {
  if (typeof payload !== "object" || payload === null) {
    return undefined;
  }

  const payloadPayload =
    "payload" in payload && typeof payload.payload === "object" && payload.payload !== null
      ? payload.payload
      : undefined;

  let configLabelKey: string = key;

  if (key in payload && typeof payload[key as keyof typeof payload] === "string") {
    configLabelKey = payload[key as keyof typeof payload] as string;
  } else if (
    payloadPayload &&
    key in payloadPayload &&
    typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
  ) {
    configLabelKey = payloadPayload[key as keyof typeof payloadPayload] as string;
  }

  return configLabelKey in config ? config[configLabelKey] : config[key];
}

// Format values to percent for expanded charts
function axisValueToPercentFormatter(value: number) {
  return `${Math.round(value * 100).toFixed(0)}%`;
}

// Get max colors count across all themes for a config entry
function getColorsCount(config: ChartConfig[string]): number {
  if (!config.colors) return 1;
  const counts = VALID_THEME_KEYS.map((theme) => config.colors?.[theme]?.length ?? 0);
  return Math.max(...counts, 1);
}

// Generate random loading data for skeleton/loading state
// min/max represent percentage of the range (0-100), defaults to 20-80 for realistic look
export const getLoadingData = (points: number = 10, min: number = 0, max: number = 70) => {
  const range = max - min;
  return Array.from({ length: points }, () => ({
    loading: Math.floor(Math.random() * range) + min,
  }));
};

export {
  ChartContainer,
  ChartStyle,
  axisValueToPercentFormatter,
  LoadingIndicator,
  getColorsCount,
};

```
        
      
       
        ### Add the sub-components.
        
          Create `tooltip.tsx` inside `evilcharts/ui` and paste the code there.
        
        
          ### components/evilcharts/ui/recharts-tooltip.tsx

```tsx
import { getPayloadConfigFromPayload, getColorsCount, useChart } from "@/components/evilcharts/ui/recharts-chart";
import type { NameType, ValueType } from "recharts/types/component/DefaultTooltipContent";
import * as RechartsPrimitive from "recharts";
import { cn } from "@/lib/utils";
import * as React from "react";

type TooltipRoundness = "sm" | "md" | "lg" | "xl";
type TooltipVariant = "default" | "frosted-glass";

const roundnessMap: Record<TooltipRoundness, string> = {
  sm: "rounded-sm",
  md: "rounded-md",
  lg: "rounded-lg",
  xl: "rounded-xl",
};

const variantMap: Record<TooltipVariant, string> = {
  default: "bg-background",
  "frosted-glass": "bg-background/70 backdrop-blur-sm",
};

function ChartTooltipContent({
  active,
  payload,
  className,
  indicator = "dot",
  hideLabel = false,
  hideIndicator = false,
  label,
  labelFormatter,
  labelClassName,
  formatter,
  nameKey,
  labelKey,
  selected,
  roundness = "lg",
  variant = "default",
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
  React.ComponentProps<"div"> & {
    hideLabel?: boolean;
    hideIndicator?: boolean;
    indicator?: "line" | "dot" | "dashed";
    nameKey?: string;
    labelKey?: string;
    selected?: string | null;
    roundness?: TooltipRoundness;
    variant?: TooltipVariant;
  } & Omit<
    RechartsPrimitive.DefaultTooltipContentProps<ValueType, NameType>,
    "accessibilityLayer"
  >) {
  const { config } = useChart();

  const tooltipLabel = React.useMemo(() => {
    if (hideLabel || !payload?.length) {
      return null;
    }

    const [item] = payload;
    const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`;
    const itemConfig = getPayloadConfigFromPayload(config, item, key);
    const value =
      !labelKey && typeof label === "string" ? (config[label]?.label ?? label) : itemConfig?.label;

    if (labelFormatter) {
      return (
        <div className={cn("font-medium", labelClassName)}>{labelFormatter(value, payload)}</div>
      );
    }

    if (!value) {
      return null;
    }

    return <div className={cn("font-medium", labelClassName)}>{value}</div>;
  }, [label, labelFormatter, payload, hideLabel, labelClassName, config, labelKey]);

  if (!active || !payload?.length) {
    // Empty tooltip - to prevent position getting 0.0 so it doesnt animate tooltip every time from 0.0 origin
    return <span className="p-4" />;
  }

  const nestLabel = payload.length === 1 && indicator !== "dot";

  return (
    <div
      className={cn(
        "border-border/50 grid min-w-32 items-start gap-1.5 border px-2.5 py-1.5 text-xs shadow-xl",
        roundnessMap[roundness],
        variantMap[variant],
        className,
      )}
    >
      {!nestLabel ? tooltipLabel : null}
      <div className="grid gap-1.5">
        {payload
          .filter((item) => item.type !== "none")
          .map((item, index) => {
            // For pie charts, item.name contains the sector name (e.g., "chrome")
            // For radial charts, the name is in item.payload[nameKey]
            // For other charts, item.name or item.dataKey contains the series name
            const payloadName =
              nameKey && item.payload
                ? (item.payload as Record<string, unknown>)[nameKey]
                : undefined;
            const key = `${payloadName ?? item.name ?? item.dataKey ?? "value"}`;
            const itemConfig = getPayloadConfigFromPayload(config, item, key);

            // Get colors count for this item to determine gradient vs solid
            const colorsCount = itemConfig ? getColorsCount(itemConfig) : 1;

            return (
              <div
                key={index}
                className={cn(
                  "[&>svg]:text-muted-foreground flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5",
                  indicator === "dot" && "items-center",
                  selected != null && selected !== item.dataKey && "opacity-30",
                )}
              >
                {formatter && item?.value !== undefined && item.name ? (
                  formatter(item.value, item.name, item, index, item.payload)
                ) : (
                  <>
                    {itemConfig?.icon ? (
                      <itemConfig.icon />
                    ) : (
                      !hideIndicator && (
                        <div
                          className={cn("shrink-0 rounded-[2px]", {
                            "h-2.5 w-2.5": indicator === "dot",
                            "w-1": indicator === "line",
                            "w-0 border-[1.5px] border-dashed bg-transparent!":
                              indicator === "dashed",
                            "my-0.5": nestLabel && indicator === "dashed",
                          })}
                          style={getIndicatorColorStyle(key, colorsCount)}
                        />
                      )
                    )}
                    <div
                      className={cn(
                        "flex flex-1 justify-between gap-4 leading-none",
                        nestLabel ? "items-end" : "items-center",
                      )}
                    >
                      <div className="grid gap-1.5">
                        {nestLabel ? tooltipLabel : null}
                        <span className="text-muted-foreground">
                          {itemConfig?.label ?? item.name}
                        </span>
                      </div>
                      {item.value != null && (
                        <span className="text-foreground font-mono font-medium tabular-nums">
                          {typeof item.value === "number"
                            ? item.value.toLocaleString()
                            : String(item.value)}
                        </span>
                      )}
                    </div>
                  </>
                )}
              </div>
            );
          })}
      </div>
    </div>
  );
}

function getIndicatorColorStyle(dataKey: string, colorsCount: number): React.CSSProperties {
  if (colorsCount <= 1) {
    return { background: `var(--color-${dataKey}-0)` };
  }

  // Multiple colors: create linear gradient with evenly distributed stops
  const stops = Array.from({ length: colorsCount }, (_, index) => {
    const offset = (index / (colorsCount - 1)) * 100;
    return `var(--color-${dataKey}-${index}) ${offset}%`;
  }).join(", ");

  return { background: `linear-gradient(to right, ${stops})` };
}

const ChartTooltip = ({
  animationDuration = 200,
  ...props
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip>) => (
  <RechartsPrimitive.Tooltip animationDuration={animationDuration} {...props} />
);

export { ChartTooltip, ChartTooltipContent };
export type { TooltipRoundness, TooltipVariant };

```
        
        
          Then create `legend.tsx` in the same folder and paste the code there.
        
        
          ### components/evilcharts/ui/recharts-legend.tsx

```tsx
import { getPayloadConfigFromPayload, getColorsCount, useChart } from "@/components/evilcharts/ui/recharts-chart";
import * as RechartsPrimitive from "recharts";
import { cn } from "@/lib/utils";
import * as React from "react";

type ChartLegendVariant =
  | "square"
  | "circle"
  | "circle-outline"
  | "rounded-square"
  | "rounded-square-outline"
  | "vertical-bar"
  | "horizontal-bar";

function ChartLegendContent({
  className,
  hideIcon = false,
  nameKey,
  payload,
  verticalAlign,
  align = "right",
  selected,
  onSelectChange,
  isClickable,
  variant = "rounded-square",
}: React.ComponentProps<"div"> & {
  hideIcon?: boolean;
  nameKey?: string;
  selected?: string | null;
  isClickable?: boolean;
  onSelectChange?: (selected: string | null) => void;
  variant?: ChartLegendVariant;
} & RechartsPrimitive.DefaultLegendContentProps) {
  const { config } = useChart();

  if (!payload?.length) {
    return null;
  }

  return (
    <div
      className={cn(
        "flex items-center gap-4 select-none",
        align === "left" && "justify-start",
        align === "center" && "justify-center",
        align === "right" && "justify-end",
        verticalAlign === "top" ? "pb-4" : "pt-4",
        className,
      )}
    >
      {payload
        .filter((item) => item.type !== "none")
        .map((item) => {
          // For pie charts, item.value contains the sector name (e.g., "chrome")
          // For radial charts, the name is in item.payload[nameKey]
          // For other charts, item.dataKey contains the series name (e.g., "desktop")
          const payloadName =
            nameKey && item.payload
              ? (item.payload as Record<string, unknown>)[nameKey]
              : undefined;
          const key = `${payloadName ?? item.value ?? item.dataKey ?? "value"}`;
          const itemConfig = getPayloadConfigFromPayload(config, item, key);
          const isSelected = selected === null || selected === key;

          // Get colors count for this item to determine gradient vs solid
          const colorsCount = itemConfig ? getColorsCount(itemConfig) : 1;

          return (
            <div
              key={key}
              className={cn(
                "[&>svg]:text-muted-foreground flex items-center gap-1.5 transition-opacity [&>svg]:h-3 [&>svg]:w-3",
                !isSelected && "opacity-30",
                isClickable && "cursor-pointer",
              )}
              onClick={() => {
                if (!isClickable) return;

                onSelectChange?.(selected === key ? null : key);
              }}
            >
              {itemConfig?.icon && !hideIcon ? (
                <itemConfig.icon />
              ) : (
                <LegendIndicator
                  variant={variant}
                  dataKey={key}
                  colorsCount={colorsCount}
                />
              )}
              {itemConfig?.label}
            </div>
          );
        })}
    </div>
  );
}

// ---------------------------------------------------------------------------
// Legend indicator — each variant gets its own branch so future variants
// can diverge freely in markup & style.
// ---------------------------------------------------------------------------

function LegendIndicator({
  variant,
  dataKey,
  colorsCount,
}: {
  variant: ChartLegendVariant;
  dataKey: string;
  colorsCount: number;
}) {
  const fillStyle = getLegendFillStyle(dataKey, colorsCount);
  const outlineStyle = getLegendOutlineStyle(dataKey, colorsCount);

  switch (variant) {
    case "square":
      return <div className="h-2 w-2 shrink-0" style={fillStyle} />;

    case "circle":
      return <div className="h-2 w-2 shrink-0 rounded-full" style={fillStyle} />;

    case "circle-outline":
      return (
        <div
          className="h-2.5 w-2.5 shrink-0 rounded-full p-[1.5px]"
          style={outlineStyle}
        />
      );

    case "vertical-bar":
      return <div className="h-3 w-1 shrink-0 rounded-[2px]" style={fillStyle} />;

    case "horizontal-bar":
      return <div className="h-1 w-3 shrink-0 rounded-[2px]" style={fillStyle} />;

    case "rounded-square-outline":
      return (
        <div
          className="h-2.5 w-2.5 shrink-0 rounded-[3px] p-[1.5px]"
          style={outlineStyle}
        />
      );

    case "rounded-square":
    default:
      return <div className="h-2 w-2 shrink-0 rounded-[2px]" style={fillStyle} />;
  }
}

// ---------------------------------------------------------------------------
// Style helpers
// ---------------------------------------------------------------------------

/** Solid fill / gradient background for filled variants. */
function getLegendFillStyle(dataKey: string, colorsCount: number): React.CSSProperties {
  if (colorsCount <= 1) {
    return { backgroundColor: `var(--color-${dataKey}-0)` };
  }

  const stops = Array.from({ length: colorsCount }, (_, i) => {
    const offset = (i / (colorsCount - 1)) * 100;
    return `var(--color-${dataKey}-${i}) ${offset}%`;
  }).join(", ");

  return { background: `linear-gradient(to right, ${stops})` };
}

/**
 * Outline style for stroke variants.
 * Uses background + mask-composite to punch out the center, leaving only the
 * "border" visible. Works with both solid colors and gradients, and respects
 * border-radius — unlike plain `border-color`.
 */
function getLegendOutlineStyle(dataKey: string, colorsCount: number): React.CSSProperties {
  const maskStyle: React.CSSProperties = {
    WebkitMask:
      "linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0)",
    WebkitMaskComposite: "xor",
    mask: "linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0)",
    maskComposite: "exclude",
  };

  if (colorsCount <= 1) {
    return {
      backgroundColor: `var(--color-${dataKey}-0)`,
      ...maskStyle,
    };
  }

  const stops = Array.from({ length: colorsCount }, (_, i) => {
    const offset = (i / (colorsCount - 1)) * 100;
    return `var(--color-${dataKey}-${i}) ${offset}%`;
  }).join(", ");

  return {
    background: `linear-gradient(to right, ${stops})`,
    ...maskStyle,
  };
}

const ChartLegend = RechartsPrimitive.Legend;

export { ChartLegend, ChartLegendContent, type ChartLegendVariant };

```
        
      
    
  


## Usage

The bar chart is composible. `<EvilBarChart>` is the container, and every part hangs off it as a compound member — `<EvilBarChart.Grid>`, `<EvilBarChart.XAxis>`, `<EvilBarChart.YAxis>`, `<EvilBarChart.Legend>`, `<EvilBarChart.Tooltip>`, and one or more `<EvilBarChart.Bar>` — as children. Each `<Bar>` sets its own `variant`, `radius`, `glowing`, `bufferBar`, and `isClickable`, so one chart can mix fill styles and make only some series interactive.

```tsx
import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";
```

```tsx
<EvilBarChart data={data} config={chartConfig} stackType="default">
  <EvilBarChart.Grid />
  <EvilBarChart.XAxis dataKey="month" />
  <EvilBarChart.Legend isClickable />
  <EvilBarChart.Tooltip />
  <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
  <EvilBarChart.Bar dataKey="mobile" variant="hatched" isClickable />
</EvilBarChart>
```

### Interactive Selection

Add `isClickable` to any `<Bar>` (and `<Legend>`) to make its series selectable, then handle events with the `onSelectionChange` callback on `<EvilBarChart>`:

```tsx
<EvilBarChart
  data={data}
  config={chartConfig}
  onSelectionChange={(selectedDataKey) => {
    if (selectedDataKey) {
      console.log("Selected:", selectedDataKey);
    } else {
      console.log("Deselected");
    }
  }}
>
  <EvilBarChart.XAxis dataKey="month" />
  <EvilBarChart.Legend isClickable />
  <EvilBarChart.Tooltip />
  <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
  <EvilBarChart.Bar dataKey="mobile" variant="default" isClickable />
</EvilBarChart>
```

### Loading State

### isLoading='true'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart
      data={[]} // if isLoading is true, pass empty array → i.e isLoading ? [] : data
      config={chartConfig}
      className="h-full w-full p-4"
      isLoading={true} // [!code highlight]
    >
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" />
      <EvilBarChart.Bar dataKey="mobile" variant="default" />
    </EvilBarChart>
  );
}

```
>  
  
    Pass `isLoading` to show a shimmer skeleton while data loads.
  


### Buffer Bar

<ComponentPreview className="mb-0" title="<Bar bufferBar />" name="ex-buffer-bar-chart"  />
>  
  
    With `bufferBar` set, a `<Bar>`'s last data point renders as a hatched pattern while the rest stay solid — handy for flagging projected or incomplete data, as in financial and forecasting charts.
  


## Examples

Examples across different `variants`. Each `<Bar>` sets its own `variant`; the chart-wide `stackType` and `layout` shape the rest.

### Hover Highlight

<ComponentPreview className="mb-0" title="<Bar enableHoverHighlight />" name="ex-hover-highlight-bar-chart"  />
>  
  
    Set `enableHoverHighlight` on a `<Bar>` to dim the other bars on hover, keeping focus on one series.
  


### Gradient Colors

### gradient colors

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#a855f7", "#6366f1", "#3b82f6"], // [!code highlight]
      dark: ["#f43f5e", "#ec4899", "#a855f7", "#6366f1", "#3b82f6"], // [!code highlight]
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#10b981", "#34d399", "#6ee7b7"], // [!code highlight]
      dark: ["#10b981", "#14b8a6", "#06b6d4"], // [!code highlight]
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
      <EvilBarChart.Bar dataKey="mobile" variant="default" isClickable />
    </EvilBarChart>
  );
}

```

### Bar Variants

### variant='default'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="default" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="default" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```
### variant='hatched'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="hatched" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="hatched" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```
### variant='duotone'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="duotone" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="duotone" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```
### variant='duotone-reverse'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="duotone-reverse" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="duotone-reverse" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```
### variant='gradient'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="gradient" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="gradient" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```
### variant='stripped'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart data={data} config={chartConfig} className="h-full w-full p-4">
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar
        dataKey="desktop"
        variant="stripped" // [!code highlight]
        isClickable
      />
      <EvilBarChart.Bar
        dataKey="mobile"
        variant="stripped" // [!code highlight]
        isClickable
      />
    </EvilBarChart>
  );
}

```

### Stack Types

### stackType='stacked'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart
      data={data}
      config={chartConfig}
      className="h-full w-full p-4"
      stackType="stacked" // [!code highlight]
    >
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
      <EvilBarChart.Bar dataKey="mobile" variant="default" isClickable />
    </EvilBarChart>
  );
}

```
### stackType='percent'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 342, mobile: 184 },
  { month: "February", desktop: 876, mobile: 491 },
  { month: "March", desktop: 512, mobile: 290 },
  { month: "April", desktop: 629, mobile: 391 },
  { month: "May", desktop: 458, mobile: 309 },
  { month: "June", desktop: 781, mobile: 449 },
  { month: "July", desktop: 394, mobile: 234 },
  { month: "August", desktop: 925, mobile: 557 },
  { month: "September", desktop: 647, mobile: 367 },
  { month: "October", desktop: 532, mobile: 357 },
  { month: "November", desktop: 803, mobile: 515 },
  { month: "December", desktop: 271, mobile: 149 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#047857"],
      dark: ["#10b981"],
    },
  },
  mobile: {
    label: "Mobile",
    colors: {
      light: ["#be123c"],
      dark: ["#f43f5e"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart
      data={data}
      config={chartConfig}
      className="h-full w-full p-4"
      stackType="percent" // [!code highlight]
    >
      <EvilBarChart.Grid />
      <EvilBarChart.XAxis dataKey="month" tickFormatter={(value) => value.substring(0, 3)} />
      <EvilBarChart.Legend isClickable />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" isClickable />
      <EvilBarChart.Bar dataKey="mobile" variant="default" isClickable />
    </EvilBarChart>
  );
}

```

### Horizontal Layout

### layout='horizontal'

```tsx
"use client";

import { EvilBarChart } from "@/components/evilcharts/charts/recharts-bar-chart";
import { type ChartConfig } from "@/components/evilcharts/ui/recharts-chart";

const data = [
  { month: "January", desktop: 186 },
  { month: "February", desktop: 305 },
  { month: "March", desktop: 237 },
  { month: "April", desktop: 173 },
  { month: "May", desktop: 209 },
  { month: "June", desktop: 214 },
];

const chartConfig = {
  desktop: {
    label: "Desktop",
    colors: {
      light: ["#2563eb"],
      dark: ["#3b82f6"],
    },
  },
} satisfies ChartConfig;

export function EvilExampleBarChart() {
  return (
    <EvilBarChart
      data={data}
      config={chartConfig}
      className="h-full w-full p-4"
      layout="horizontal" // [!code highlight]
    >
      <EvilBarChart.Grid />
      <EvilBarChart.YAxis
        dataKey="month"
        tickFormatter={(value) => value.substring(0, 3)} // [!code highlight]
      />
      <EvilBarChart.Legend />
      <EvilBarChart.Tooltip />
      <EvilBarChart.Bar dataKey="desktop" variant="default" />
    </EvilBarChart>
  );
}

```
>  
  
    Set `layout="horizontal"` on `<EvilBarChart>` to lay bars sideways. The `<YAxis>` then shows categories and the `<XAxis>` shows values — pass a `tickFormatter` to `<YAxis>` to format categories.
  


### Glowing Bars

<ComponentPreview className="mb-0" title="<Bar glowing /> - desktop" name="ex-glowing-desktop-bar-chart"  />
<ComponentPreview title="<Bar glowing /> - mobile" name="ex-glowing-mobile-bar-chart"  />

## API Reference

The chart has several parts. Props below are grouped by component.

<ApiHeading>EvilBarChart</ApiHeading>

The root container. It owns the data, shared selection state, loading skeleton, and optional brush — everything visual is composed as its children.


  ### `data` (required)

type: `TData[]`

The chart data — an array of objects, one per data point (`TData extends Record<string, unknown>`).
  ### `config`



" required>
    Defines the chart's series. Each key matches a data key and maps to a color or color array.
  ### `children` (required)

type: `ReactNode`

The composed chart parts — `<Grid />`, `<XAxis />`, `<YAxis />`, `<Legend />`, `<Tooltip />`, and one or more `<Bar />`.
  ### `className`

type: `string`

Extra CSS classes for the chart container.
  ### `stackType`

type: `"default" | "stacked" | "percent"` · default: `"default"`

How multiple bars combine. `"default"` sits them side by side, `"stacked"` stacks them, and `"percent"` normalizes them to a percentage distribution.
  ### `layout`

type: `"vertical" | "horizontal"` · default: `"vertical"`

Bar orientation. `"vertical"` draws upright bars; `"horizontal"` lays them sideways, so the `<YAxis />` shows categories and the `<XAxis />` shows values.
  ### `barRadius`

type: `number` · default: `2`

Default corner radius (px) for every `<Bar />`. Each `<Bar />` can override it with its own `radius` prop.
  ### `animationType`

type: `"none" | "left-to-right" | "right-to-left" | "center-out" | "edges-in"` · default: `"left-to-right"`

Order in which bars grow into view, inherited by every `<Bar />`. Each grows from its baseline (bottom when vertical, left when horizontal). `"none"` disables it; the OS reduce-motion preference forces `"none"` automatically.
  ### `barGap`

type: `number`

Gap between bars in the same category (multiple series).
  ### `barCategoryGap`

type: `number`

Gap between bar categories.
  ### `backgroundVariant`

type: `BackgroundVariant`

Background pattern shown behind the chart.
  ### `defaultSelectedDataKey`

type: `string | null` · default: `null`

Data key selected by default.
  ### `onSelectionChange`



void">
    Fires when a series is selected or deselected by clicking a clickable `<Bar />` or `<Legend />` entry. Receives the data key, or `null` when deselected.
  ### `isLoading`

type: `boolean` · default: `false`

Shows a shimmer skeleton while data loads.
  ### `loadingBars`

type: `number` · default: `12`

Number of bars in the loading skeleton.
  ### `xDataKey`

type: `keyof TData & string`

X-axis data key. Only the brush footer needs it — the axis reads its own key from `<XAxis dataKey="…" />`.
  ### `chartProps`



">
    Extra props forwarded to the underlying Recharts BarChart. See the [Recharts BarChart docs](https://recharts.github.io/en-US/api/BarChart/) for options.


<ApiHeading>Bar</ApiHeading>

A single bar series. Each `<Bar />` is self-contained and generates its own gradient/pattern defs, so a chart can hold any number — each with its own variant, radius, glow, and clickability.


  ### `dataKey` (required)

type: `string`

The series key. Must exist on both the data rows and the chart `config`.
  ### `variant`

type: `"default" | "hatched" | "duotone" | "duotone-reverse" | "gradient" | "stripped"` · default: `"default"`

Fill style for this bar only.
  ### `radius`

type: `number`

Corner radius (px) for this bar. Falls back to the chart's `barRadius` when omitted.
  ### `animationType`

type: `"none" | "left-to-right" | "right-to-left" | "center-out" | "edges-in"`

Grow-in order for this series. Falls back to the chart's `animationType` when omitted.
  ### `isClickable`

type: `boolean` · default: `false`

Lets this bar be selected on click. While any bar is selected, unselected bars turn semi-transparent.
  ### `enableHoverHighlight`

type: `boolean` · default: `false`

Dims this bar while another is hovered, keeping focus on one series.
  ### `glowing`

type: `boolean` · default: `false`

Adds a soft outer glow to this series.
  ### `bufferBar`

type: `boolean` · default: `false`

Renders this series' last data point as a hatched pattern while the rest stay solid — good for projected or incomplete data.
  ### `barProps`



">
    Escape hatch for raw props forwarded to the Recharts Bar.


<ApiHeading>XAxis and YAxis</ApiHeading>

The category and value axes. Both use the chart's flat default styling and forward every Recharts axis prop, so `dataKey`, `tickFormatter`, `tickMargin`, etc. pass straight through. They hide automatically while the chart loads, and each resolves its `type` from the chart `layout` — categorical or numeric — unless you set `type` explicitly.


  ### `dataKey`

type: `string`

The data key for the axis values.
  ### `…axisProps`



Every other Recharts XAxis / YAxis prop is forwarded as-is. See the [Recharts XAxis](https://recharts.github.io/en-US/api/XAxis/) and [Recharts YAxis](https://recharts.github.io/en-US/api/YAxis/) docs for options.


<ApiHeading>Grid</ApiHeading>

The background grid lines. Defaults to dashed lines aligned to the value axis for the current layout, and forwards every Recharts CartesianGrid prop.


  ### `…gridProps`



Every Recharts CartesianGrid prop is forwarded as-is. See the [Recharts CartesianGrid docs](https://recharts.github.io/en-US/api/CartesianGrid/) for options.


<ApiHeading>Tooltip</ApiHeading>

The hover tooltip. It reads the chart's selection state, dimming unselected series.


  ### `variant`

type: `"default" | "frosted-glass"` · default: `"default"`

The visual style of the tooltip surface.
  ### `roundness`

type: `"sm" | "md" | "lg" | "xl"` · default: `"lg"`

Border-radius of the tooltip.
  ### `defaultIndex`

type: `number`

Shows the tooltip by default at this data point index.


<ApiHeading>Legend</ApiHeading>

The series legend. When `isClickable` is set, each entry toggles selection of its series.


  ### `variant`

type: `"square" | "circle" | "circle-outline" | "rounded-square" | "rounded-square-outline" | "vertical-bar" | "horizontal-bar"`

The visual style of the legend indicators.
  ### `align`

type: `"left" | "center" | "right"` · default: `"right"`

Horizontal placement of the legend.
  ### `verticalAlign`

type: `"top" | "middle" | "bottom"` · default: `"top"`

Vertical placement of the legend.
  ### `isClickable`

type: `boolean` · default: `false`

Lets each legend entry toggle selection of its series.


<ApiHeading>Brush</ApiHeading>

An optional zoom brush below the chart. Include `<EvilBarChart.Brush />` to render it; dragging the range filters the main chart.


  ### `height`

type: `number`

Height of the brush preview strip in pixels.
  ### `formatLabel`



string">
    Formats the range-handle labels below the brush.
  ### `onChange`



void">
    Fires when the brush selection range changes.