Line Chart

"use client"import * as React from "react"import * as RechartsPrimitive from "recharts"import type {  DefaultLegendContentProps,  LegendPayload,  TooltipContentProps,  TooltipPayloadEntry,} from "@/types/recharts-chart-shim"import { cn } from "@/lib/utils"/** Props Recharts passes when `content={<ChartTooltipContent />}` */type TooltipPropsInjectedByRecharts = Pick<  TooltipContentProps,  | "active"  | "payload"  | "label"  | "coordinate"  | "accessibilityLayer"  | "activeIndex">const THEMES = { light: "", dark: ".dark" } as constexport type ChartConfig = {  [k in string]: {    label?: React.ReactNode    icon?: React.ComponentType<{ className?: string }>  } & (    | { color?: string; theme?: never }    | { color?: never; theme: Record<keyof typeof THEMES, string> }  )}type ChartContextProps = {  config: ChartConfig}const ChartContext = React.createContext<ChartContextProps | null>(null)function useChart() {  const context = React.useContext(ChartContext)  if (!context) {    throw new Error("useChart must be used within a ChartContainer")  }  return context}function getPayloadConfigFromPayload(  config: ChartConfig,  payload: unknown,  key: string) {  if (typeof payload !== "object" || payload === null) return undefined  const payloadPayload =    "payload" in payload &&    typeof (payload as { payload?: unknown }).payload === "object" &&    (payload as { payload?: unknown }).payload !== null    ? (payload as { payload: Record<string, unknown> }).payload    : undefined  let configLabelKey: string = key  const pl = payload as Record<string, unknown>  if (key in pl && typeof pl[key] === "string") {    configLabelKey = pl[key] as string  } else if (    payloadPayload &&    key in payloadPayload &&    typeof payloadPayload[key] === "string"  ) {    configLabelKey = payloadPayload[key] as string  }  return configLabelKey in config    ? config[configLabelKey]    : config[key as keyof typeof config]}const ChartContainer = React.forwardRef<  HTMLDivElement,  React.ComponentProps<"div"> & {    config: ChartConfig    /**     * Recharts `ResponsiveContainer` forwards width/height to each valid child.     * Use a single chart root for best results; multiple siblings (e.g. chart + overlay)     * are supported, but overlays should not block pointer events (`pointer-events-none`)     * if tooltips need the chart surface.     */    children: React.ReactNode  }>(({ id, className, children, config, ...props }, ref) => {  const uniqueId = React.useId()  const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`  return (    <ChartContext.Provider value={{ config }}>      <div        ref={ref}        data-chart={chartId}        className={cn(          "w-full min-h-0 min-w-0 [&_.recharts-responsive-container]:min-h-0",          className,        )}        {...props}      >        <ChartStyle id={chartId} config={config} />        <RechartsPrimitive.ResponsiveContainer          width="100%"          height="100%"          minWidth={0}          minHeight={1}          initialDimension={{ width: 1, height: 1 }}        >          {/* Recharts types only `ReactElement`; runtime supports multiple roots via Children.map */}          {children as React.ReactElement}        </RechartsPrimitive.ResponsiveContainer>      </div>    </ChartContext.Provider>  )})ChartContainer.displayName = "ChartContainer"function ChartStyle({ id, config }: { id: string; config: ChartConfig }) {  const colorConfig = Object.entries(config).filter(    ([, c]) => c.theme != null || c.color != null  )  if (!colorConfig.length) return null  const css = Object.entries(THEMES)    .map(([theme, prefix]) => {      const selector = prefix ? `${prefix} [data-chart=${id}]` : `[data-chart=${id}]`      const vars = colorConfig        .map(([key, itemConfig]) => {          const color =            itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??            itemConfig.color          return color ? `  --color-${key}: ${color};` : null        })        .filter(Boolean)        .join("\n")      return `${selector} {\n${vars}\n}`    })    .join("\n\n")  return <style dangerouslySetInnerHTML={{ __html: css }} />}const ChartTooltip = RechartsPrimitive.Tooltipconst ChartTooltipContent = React.forwardRef<  HTMLDivElement,  Omit<TooltipContentProps, keyof TooltipPropsInjectedByRecharts> &    Partial<TooltipPropsInjectedByRecharts> &    React.ComponentPropsWithoutRef<"div"> & {      hideLabel?: boolean      hideIndicator?: boolean      indicator?: "line" | "dot" | "dashed"      nameKey?: string      labelKey?: string    }>(  (    {      active,      payload,      className,      indicator = "dot",      hideLabel = false,      hideIndicator = false,      label,      labelFormatter,      labelClassName,      formatter,      color,      nameKey,      labelKey,    },    ref  ) => {    const { config } = useChart()    const tooltipLabel = React.useMemo(() => {      if (hideLabel || !payload?.length) return null      const [item] = payload      const key = `${labelKey ?? (item?.dataKey ?? item?.name) ?? "value"}`      const itemConfig = getPayloadConfigFromPayload(config, item, key)      const value =        labelKey == null && typeof label === "string"          ? config[label as keyof typeof config]?.label ?? label          : itemConfig?.label      if (labelFormatter != null) {        return <>{labelFormatter(value, payload)}</>      }      if (value == null) return null      return <span className={labelClassName}>{value}</span>    }, [label, labelFormatter, payload, hideLabel, labelClassName, config, labelKey])    if (!active || !payload?.length) return null    const nestLabel = payload.length === 1 && indicator !== "dot"    return (      <div        ref={ref}        className={cn(          "rounded-lg border bg-popover px-2.5 py-1.5 text-sm text-popover-foreground shadow-md",          className        )}      >        {!nestLabel ? tooltipLabel : null}        {payload.map((item: TooltipPayloadEntry, index: number) => {          const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`          const itemConfig = getPayloadConfigFromPayload(config, item, key)          const indicatorColor =            color ?? (item.payload as { fill?: string })?.fill ?? item.color          const rowKey =            typeof item.dataKey === "string" || typeof item.dataKey === "number"              ? item.dataKey              : index          return (            <div key={rowKey} className="flex items-center gap-2">              {formatter != null && item?.value !== undefined && item.name != null ? (                formatter(item.value, item.name, item, index, payload)              ) : (                <>                  {itemConfig?.icon != null ? (                    <itemConfig.icon className="size-4 shrink-0" />                  ) : (                    !hideIndicator && (                      <span                        className={cn(                          "rounded-full shrink-0",                          indicator === "dot" && "size-2.5",                          indicator === "line" && "h-0.5 w-4",                          indicator === "dashed" && "h-0.5 w-4 border-t-2 border-dashed"                        )}                        style={{                          backgroundColor:                            indicator === "dot" ? indicatorColor : undefined,                          borderColor: indicator === "dashed" ? indicatorColor : undefined,                        }}                      />                    )                  )}                  {nestLabel ? tooltipLabel : null}                  <span>{itemConfig?.label ?? item.name}</span>                  {item.value != null && (                    <span className="font-medium tabular-nums">                      {item.value.toLocaleString()}                    </span>                  )}                </>              )}            </div>          )        })}      </div>    )  })ChartTooltipContent.displayName = "ChartTooltipContent"const ChartLegend = RechartsPrimitive.Legendconst ChartLegendContent = React.forwardRef<  HTMLDivElement,  DefaultLegendContentProps &    React.ComponentPropsWithoutRef<"div"> & {      hideIcon?: boolean      nameKey?: string    }>(({ className, hideIcon = false, payload, nameKey }, ref) => {  const { config } = useChart()  if (!payload?.length) return null  return (    <div      ref={ref}      className={cn(        "flex flex-wrap justify-center gap-4 gap-y-2 [&_svg]:size-3.5",        className      )}    >      {payload.map((item: LegendPayload) => {        const key = `${nameKey ?? item.dataKey ?? "value"}`        const itemConfig = getPayloadConfigFromPayload(config, item, key)        return (          <div key={item.value} className="flex items-center gap-1.5">            {itemConfig?.icon != null && !hideIcon ? (              <itemConfig.icon className="size-4 shrink-0" />            ) : (              <span                className="size-2.5 shrink-0 rounded-full"                style={{                  backgroundColor: item.color ?? (item.payload as { fill?: string })?.fill,                }}              />            )}            <span className="text-muted-foreground text-xs">              {itemConfig?.label ?? item.value}            </span>          </div>        )      })}    </div>  )})ChartLegendContent.displayName = "ChartLegendContent"export {  ChartContainer,  ChartTooltip,  ChartTooltipContent,  ChartLegend,  ChartLegendContent,  ChartStyle,}