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"use client" |
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import * as React from "react" |
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import * as RechartsPrimitive from "recharts" |
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import { cn } from "@/lib/utils" |
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// Format: { THEME_NAME: CSS_SELECTOR } |
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const THEMES = { light: "", dark: ".dark" } as const |
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export type ChartConfig = { |
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[k in string]: { |
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label?: React.ReactNode |
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icon?: React.ComponentType |
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} & ( |
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| { color?: string; theme?: never } |
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| { color?: never; theme: Record<keyof typeof THEMES, string> } |
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) |
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} |
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type ChartContextProps = { |
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config: ChartConfig |
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} |
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const ChartContext = React.createContext<ChartContextProps | null>(null) |
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function useChart() { |
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const context = React.useContext(ChartContext) |
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if (!context) { |
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throw new Error("useChart must be used within a <ChartContainer />") |
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} |
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return context |
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} |
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const ChartContainer = React.forwardRef< |
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HTMLDivElement, |
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React.ComponentProps<"div"> & { |
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config: ChartConfig |
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children: React.ComponentProps< |
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typeof RechartsPrimitive.ResponsiveContainer |
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>["children"] |
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} |
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>(({ id, className, children, config, ...props }, ref) => { |
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const uniqueId = React.useId() |
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const chartId = `chart-${id || uniqueId.replace(/:/g, "")}` |
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return ( |
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<ChartContext.Provider value={{ config }}> |
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<div |
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data-chart={chartId} |
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ref={ref} |
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className={cn( |
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"flex aspect-video justify-center text-xs [&_.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-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-none [&_.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 [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-sector]:outline-none [&_.recharts-surface]:outline-none", |
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className |
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)} |
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{...props} |
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> |
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<ChartStyle id={chartId} config={config} /> |
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<RechartsPrimitive.ResponsiveContainer> |
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{children} |
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</RechartsPrimitive.ResponsiveContainer> |
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</div> |
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</ChartContext.Provider> |
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) |
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}) |
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ChartContainer.displayName = "Chart" |
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const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => { |
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const colorConfig = Object.entries(config).filter( |
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([, config]) => config.theme || config.color |
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) |
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if (!colorConfig.length) { |
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return null |
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} |
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return ( |
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<style |
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dangerouslySetInnerHTML={{ |
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__html: Object.entries(THEMES) |
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.map( |
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([theme, prefix]) => ` |
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${prefix} [data-chart=${id}] { |
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${colorConfig |
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.map(([key, itemConfig]) => { |
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const color = |
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itemConfig.theme?.[theme as keyof typeof itemConfig.theme] || |
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itemConfig.color |
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return color ? ` --color-${key}: ${color};` : null |
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}) |
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.join("\n")} |
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} |
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` |
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) |
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.join("\n"), |
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}} |
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/> |
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) |
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} |
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const ChartTooltip = RechartsPrimitive.Tooltip |
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const ChartTooltipContent = React.forwardRef< |
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HTMLDivElement, |
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React.ComponentProps<typeof RechartsPrimitive.Tooltip> & |
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React.ComponentProps<"div"> & { |
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hideLabel?: boolean |
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hideIndicator?: boolean |
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indicator?: "line" | "dot" | "dashed" |
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nameKey?: string |
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labelKey?: string |
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} |
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>( |
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( |
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{ |
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active, |
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payload, |
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className, |
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indicator = "dot", |
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hideLabel = false, |
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hideIndicator = false, |
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label, |
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labelFormatter, |
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labelClassName, |
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formatter, |
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color, |
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nameKey, |
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labelKey, |
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}, |
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ref |
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) => { |
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const { config } = useChart() |
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const tooltipLabel = React.useMemo(() => { |
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if (hideLabel || !payload?.length) { |
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return null |
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} |
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const [item] = payload |
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const key = `${labelKey || item?.dataKey || item?.name || "value"}` |
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const itemConfig = getPayloadConfigFromPayload(config, item, key) |
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const value = |
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!labelKey && typeof label === "string" |
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? config[label as keyof typeof config]?.label || label |
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: itemConfig?.label |
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if (labelFormatter) { |
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return ( |
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<div className={cn("font-medium", labelClassName)}> |
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{labelFormatter(value, payload)} |
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</div> |
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) |
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} |
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if (!value) { |
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return null |
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} |
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return <div className={cn("font-medium", labelClassName)}>{value}</div> |
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}, [ |
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label, |
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labelFormatter, |
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payload, |
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hideLabel, |
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labelClassName, |
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config, |
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labelKey, |
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]) |
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if (!active || !payload?.length) { |
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return null |
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} |
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const nestLabel = payload.length === 1 && indicator !== "dot" |
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return ( |
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<div |
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ref={ref} |
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className={cn( |
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"grid min-w-[8rem] items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl", |
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className |
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)} |
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> |
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{!nestLabel ? tooltipLabel : null} |
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<div className="grid gap-1.5"> |
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{payload.map((item, index) => { |
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const key = `${nameKey || item.name || item.dataKey || "value"}` |
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const itemConfig = getPayloadConfigFromPayload(config, item, key) |
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const indicatorColor = color || item.payload.fill || item.color |
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return ( |
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<div |
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key={item.dataKey} |
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className={cn( |
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"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground", |
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indicator === "dot" && "items-center" |
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)} |
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> |
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{formatter && item?.value !== undefined && item.name ? ( |
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formatter(item.value, item.name, item, index, item.payload) |
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) : ( |
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<> |
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{itemConfig?.icon ? ( |
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<itemConfig.icon /> |
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) : ( |
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!hideIndicator && ( |
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<div |
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className={cn( |
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"shrink-0 rounded-[2px] border-[--color-border] bg-[--color-bg]", |
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{ |
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"h-2.5 w-2.5": indicator === "dot", |
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"w-1": indicator === "line", |
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"w-0 border-[1.5px] border-dashed bg-transparent": |
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indicator === "dashed", |
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"my-0.5": nestLabel && indicator === "dashed", |
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} |
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)} |
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style={ |
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{ |
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"--color-bg": indicatorColor, |
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"--color-border": indicatorColor, |
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} as React.CSSProperties |
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} |
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/> |
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) |
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)} |
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<div |
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className={cn( |
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"flex flex-1 justify-between leading-none", |
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nestLabel ? "items-end" : "items-center" |
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)} |
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> |
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<div className="grid gap-1.5"> |
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{nestLabel ? tooltipLabel : null} |
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<span className="text-muted-foreground"> |
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{itemConfig?.label || item.name} |
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</span> |
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</div> |
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{item.value && ( |
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<span className="font-mono font-medium tabular-nums text-foreground"> |
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{item.value.toLocaleString()} |
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</span> |
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)} |
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</div> |
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</> |
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)} |
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</div> |
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) |
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})} |
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</div> |
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</div> |
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) |
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} |
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) |
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ChartTooltipContent.displayName = "ChartTooltip" |
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const ChartLegend = RechartsPrimitive.Legend |
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const ChartLegendContent = React.forwardRef< |
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HTMLDivElement, |
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React.ComponentProps<"div"> & |
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Pick<RechartsPrimitive.LegendProps, "payload" | "verticalAlign"> & { |
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hideIcon?: boolean |
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nameKey?: string |
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} |
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>( |
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( |
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{ className, hideIcon = false, payload, verticalAlign = "bottom", nameKey }, |
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ref |
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) => { |
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const { config } = useChart() |
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if (!payload?.length) { |
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return null |
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} |
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return ( |
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<div |
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ref={ref} |
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className={cn( |
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"flex items-center justify-center gap-4", |
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verticalAlign === "top" ? "pb-3" : "pt-3", |
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className |
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)} |
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> |
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{payload.map((item) => { |
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const key = `${nameKey || item.dataKey || "value"}` |
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const itemConfig = getPayloadConfigFromPayload(config, item, key) |
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return ( |
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<div |
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key={item.value} |
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className={cn( |
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"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground" |
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)} |
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> |
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{itemConfig?.icon && !hideIcon ? ( |
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<itemConfig.icon /> |
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) : ( |
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<div |
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className="h-2 w-2 shrink-0 rounded-[2px]" |
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style={{ |
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backgroundColor: item.color, |
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}} |
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/> |
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)} |
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{itemConfig?.label} |
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</div> |
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) |
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})} |
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</div> |
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) |
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} |
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) |
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ChartLegendContent.displayName = "ChartLegend" |
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// Helper to extract item config from a payload. |
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function getPayloadConfigFromPayload( |
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config: ChartConfig, |
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payload: unknown, |
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key: string |
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) { |
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if (typeof payload !== "object" || payload === null) { |
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return undefined |
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} |
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const payloadPayload = |
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"payload" in payload && |
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typeof payload.payload === "object" && |
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payload.payload !== null |
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? payload.payload |
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: undefined |
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let configLabelKey: string = key |
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if ( |
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key in payload && |
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typeof payload[key as keyof typeof payload] === "string" |
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) { |
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configLabelKey = payload[key as keyof typeof payload] as string |
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} else if ( |
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payloadPayload && |
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key in payloadPayload && |
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typeof payloadPayload[key as keyof typeof payloadPayload] === "string" |
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) { |
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configLabelKey = payloadPayload[ |
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key as keyof typeof payloadPayload |
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] as string |
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} |
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return configLabelKey in config |
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? config[configLabelKey] |
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: config[key as keyof typeof config] |
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} |
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export { |
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ChartContainer, |
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ChartTooltip, |
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ChartTooltipContent, |
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ChartLegend, |
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ChartLegendContent, |
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ChartStyle, |
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} |