---

frontend/components/InputField.tsx

@@ -0,0 +1,18 @@
+'use client'
+import { FormControl, FormErrorMessage, FormLabel, Input, InputProps } from '@chakra-ui/react'
+import { useField } from 'formik'
+
+type Props = React.InputHTMLAttributes<HTMLInputElement> & { name: string, label: string, isTextArea?: boolean } & InputProps
+
+export const InputField: React.FC<Props> = ({size: _, isTextArea=false, ...props}) => {
+  const [field, { error }] = useField(props)
+  const { label, placeholder } = props
+
+  return (
+    <FormControl isInvalid={!!error}>
+      <FormLabel htmlFor={field.name}>{label}</FormLabel>
+      <Input {...field} {...props} id={field.name} placeholder={placeholder} />
+      {error ? <FormErrorMessage>{error}</FormErrorMessage> : null}
+    </FormControl>
+  )
+}

frontend/components/TextareaField.tsx

@@ -0,0 +1,36 @@
+'use client'
+import { FormControl, FormErrorMessage, FormLabel, Textarea, TextareaProps } from '@chakra-ui/react'
+import autosize from 'autosize'
+import { useField } from 'formik'
+import { useRef, useEffect } from 'react'
+
+type Props = React.TextareaHTMLAttributes<HTMLTextAreaElement> & { name: string, label: string } & TextareaProps
+
+export const TextareaField: React.FC<Props> = (props): JSX.Element => {
+  const [field, { error }] = useField(props)
+  const { label, placeholder } = props
+
+  // https://github.com/chakra-ui/chakra-ui/issues/670
+  const ref: any = useRef()
+  useEffect(() => {
+    const current = ref.current
+    autosize(current)
+    return () => {
+      autosize.destroy(current)
+    }
+  }, [])
+
+  return (
+    <FormControl isInvalid={!!error}>
+      <FormLabel htmlFor={field.name}>{label}</FormLabel>
+      <Textarea
+        {...field}
+        {...props}
+        ref={ref}
+        id={field.name}
+        placeholder={placeholder}
+      />
+      {error ? <FormErrorMessage>{error}</FormErrorMessage> : null}
+    </FormControl>
+  )
+}

frontend/components/TripCountChart.tsx

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+'use client'
+// ChatGPT-generated
+import { Line } from 'react-chartjs-2'
+import { Chart as ChartJS, TimeScale, LinearScale, PointElement, LineElement, Tooltip, Legend } from 'chart.js'
+import 'chartjs-adapter-date-fns'
+import { Entry } from '@/constants'
+
+// Register required chart components
+ChartJS.register(TimeScale, LinearScale, PointElement, LineElement, Tooltip, Legend)
+
+export const TripCountChart = ({ data }: { data: Entry[] }) => {
+  const chartData = {
+    labels: data.map((entry) => entry.time),
+    datasets: [
+      {
+        label: 'Trip Count',
+        data: data.map((entry) => entry.trip_count),
+        fill: false,
+        borderColor: 'rgba(75,192,192,1)',
+        tension: 0.1,
+        segment: {
+          borderColor: (ctx: any) => {
+            const dataIndex = ctx.p0DataIndex // Starting index of the segment
+            const totalPoints = data.length
+            const threeQuarterIndex = Math.floor(totalPoints * 0.75)
+
+            // Use a different color after 3/4 of the x-axis
+            return dataIndex >= threeQuarterIndex
+              ? 'rgba(255,99,132,1)' // Different color after 3/4
+              : 'rgba(75,192,192,1)' // Default color for the first 3/4
+          },
+        },
+      },
+    ],
+  }
+
+  const options = {
+    scales: {
+      x: {
+        type: 'time',
+        time: {
+          unit: 'hour',
+          tooltipFormat: 'PPpp',
+          displayFormats: {
+            hour: 'MMM d, yyyy HH:mm',
+          },
+        },
+        title: {
+          display: true,
+          text: 'Time (Hour)',
+        },
+      },
+      y: {
+        beginAtZero: true,
+        title: {
+          display: true,
+          text: 'Trip Count',
+        },
+      },
+    },
+    plugins: {
+      tooltip: {
+        callbacks: {
+          label: function (context: any) {
+            return `Trip Count: ${context.raw}`
+          },
+        },
+      },
+    },
+  }
+
+  return <Line data={chartData} options={options as any} />
+}
+
+export default TripCountChart

frontend/components/Wrapper.tsx

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+import { Box } from '@chakra-ui/react'
+
+interface Props {
+  children?: React.ReactNode
+  variant?: 'small' | 'regular'
+}
+
+export const Wrapper: React.FC<Props> = ({ children, variant = 'regular' }) => {
+  return (
+    <Box w='100%' maxW={variant == 'small' ? 400 : 800} mt={8} mx='auto'>
+      {children}
+    </Box>
+  )
+}

frontend/components/index.ts

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+export * from './Wrapper'
+export * from './TripCountChart'
+export * from './InputField'
+export * from './TextareaField'