supabase/apps/design-system/registry/default/block/chart-area-gradient.tsx

'use client'

import { TrendingUp } from 'lucide-react'
import { Area, AreaChart, CartesianGrid, XAxis } from 'recharts'

import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from 'ui'
import { ChartConfig, ChartContainer, ChartTooltip, ChartTooltipContent } from 'ui'

export const description = 'An area chart with gradient fill'

const chartData = [
  { month: 'January', desktop: 186, mobile: 80 },
  { month: 'February', desktop: 305, mobile: 200 },
  { month: 'March', desktop: 237, mobile: 120 },
  { month: 'April', desktop: 73, mobile: 190 },
  { month: 'May', desktop: 209, mobile: 130 },
  { month: 'June', desktop: 214, mobile: 140 },
]

const chartConfig = {
  desktop: {
    label: 'Desktop',
    color: 'hsl(var(--chart-1))',
  },
  mobile: {
    label: 'Mobile',
    color: 'hsl(var(--chart-2))',
  },
} satisfies ChartConfig

export default function Component() {
  return (
    <Card>
      <CardHeader>
        <CardTitle>Area Chart - Gradient</CardTitle>
        <CardDescription>Showing total visitors for the last 6 months</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <AreaChart
            accessibilityLayer
            data={chartData}
            margin={{
              left: 12,
              right: 12,
            }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <defs>
              <linearGradient id="fillDesktop" x1="0" y1="0" x2="0" y2="1">
                <stop offset="5%" stopColor="var(--color-desktop)" stopOpacity={0.8} />
                <stop offset="95%" stopColor="var(--color-desktop)" stopOpacity={0.1} />
              </linearGradient>
              <linearGradient id="fillMobile" x1="0" y1="0" x2="0" y2="1">
                <stop offset="5%" stopColor="var(--color-mobile)" stopOpacity={0.8} />
                <stop offset="95%" stopColor="var(--color-mobile)" stopOpacity={0.1} />
              </linearGradient>
            </defs>
            <Area
              dataKey="mobile"
              type="natural"
              fill="url(#fillMobile)"
              fillOpacity={0.4}
              stroke="var(--color-mobile)"
              stackId="a"
            />
            <Area
              dataKey="desktop"
              type="natural"
              fill="url(#fillDesktop)"
              fillOpacity={0.4}
              stroke="var(--color-desktop)"
              stackId="a"
            />
          </AreaChart>
        </ChartContainer>
      </CardContent>
      <CardFooter>
        <div className="flex w-full items-start gap-2 text-sm">
          <div className="grid gap-2">
            <div className="flex items-center gap-2 font-medium leading-none">
              Trending up by 5.2% this month <TrendingUp className="h-4 w-4" />
            </div>
            <div className="flex items-center gap-2 leading-none text-muted-foreground">
              January - June 2024
            </div>
          </div>
        </div>
      </CardFooter>
    </Card>
  )
}