348 lines
9.2 KiB
JavaScript
348 lines
9.2 KiB
JavaScript
import BigNumber from 'bignumber.js'
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import * as d3 from 'd3'
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import { getTimezoneOffset } from 'date-fns-tz'
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import { add, format, startOfWeek, startOfYear } from 'date-fns/fp'
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import React, { useCallback, useEffect, useMemo, useRef } from 'react'
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import { numberToFiatAmount } from '../../../../utils/number'
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import { MINUTE, DAY, WEEK, MONTH } from '../../../../utils/time'
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const Graph = ({ data, timeFrame, timezone }) => {
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const ref = useRef(null)
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const GRAPH_HEIGHT = 250
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const GRAPH_WIDTH = 555
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const GRAPH_MARGIN = useMemo(
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() => ({
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top: 20,
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right: 3.5,
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bottom: 27,
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left: 33.5,
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}),
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[],
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)
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const offset = getTimezoneOffset(timezone)
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const NOW = Date.now() + offset
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const periodDomains = {
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Day: [NOW - DAY, NOW],
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Week: [NOW - WEEK, NOW],
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Month: [NOW - MONTH, NOW],
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}
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const dataPoints = useMemo(
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() => ({
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Day: {
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freq: 24,
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step: 60 * 60 * 1000,
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tick: d3.utcHour.every(4),
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labelFormat: '%H:%M',
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},
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Week: {
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freq: 7,
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step: 24 * 60 * 60 * 1000,
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tick: d3.utcDay.every(1),
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labelFormat: '%a %d',
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},
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Month: {
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freq: 30,
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step: 24 * 60 * 60 * 1000,
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tick: d3.utcDay.every(2),
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labelFormat: '%d',
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},
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}),
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[],
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)
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const filterDay = useCallback(
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x => (timeFrame === 'Day' ? x.getUTCHours() === 0 : x.getUTCDate() === 1),
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[timeFrame],
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)
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const getPastAndCurrentDayLabels = useCallback(d => {
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const currentDate = new Date(d)
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const currentDateDay = currentDate.getUTCDate()
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const currentDateWeekday = currentDate.getUTCDay()
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const currentDateMonth = currentDate.getUTCMonth()
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const previousDate = new Date(currentDate.getTime())
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previousDate.setUTCDate(currentDateDay - 1)
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const previousDateDay = previousDate.getUTCDate()
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const previousDateWeekday = previousDate.getUTCDay()
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const previousDateMonth = previousDate.getUTCMonth()
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const daysOfWeek = Array.from(Array(7)).map((_, i) =>
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format('EEE', add({ days: i }, startOfWeek(new Date()))),
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)
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const months = Array.from(Array(12)).map((_, i) =>
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format('LLL', add({ months: i }, startOfYear(new Date()))),
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)
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return {
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previous:
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currentDateMonth !== previousDateMonth
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? months[previousDateMonth]
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: `${daysOfWeek[previousDateWeekday]} ${previousDateDay}`,
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current:
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currentDateMonth !== previousDateMonth
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? months[currentDateMonth]
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: `${daysOfWeek[currentDateWeekday]} ${currentDateDay}`,
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}
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}, [])
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const buildTicks = useCallback(
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domain => {
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const points = []
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const roundDate = d => {
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const step = dataPoints[timeFrame].step
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return new Date(Math.ceil(d.valueOf() / step) * step)
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}
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for (let i = 0; i <= dataPoints[timeFrame].freq; i++) {
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const stepDate = new Date(NOW - i * dataPoints[timeFrame].step)
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if (roundDate(stepDate) > domain[1]) continue
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if (stepDate < domain[0]) continue
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points.push(roundDate(stepDate))
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}
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return points
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},
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[NOW, dataPoints, timeFrame],
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)
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const x = d3
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.scaleUtc()
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.domain(periodDomains[timeFrame])
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.range([GRAPH_MARGIN.left, GRAPH_WIDTH - GRAPH_MARGIN.right])
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const y = d3
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.scaleLinear()
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.domain([
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0,
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(d3.max(data, d => new BigNumber(d.fiat).toNumber()) ?? 1000) * 1.05,
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])
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.nice()
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.range([GRAPH_HEIGHT - GRAPH_MARGIN.bottom, GRAPH_MARGIN.top])
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const buildBackground = useCallback(
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g => {
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g.append('rect')
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.attr('x', 0)
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.attr('y', GRAPH_MARGIN.top)
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.attr('width', GRAPH_WIDTH)
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.attr('height', GRAPH_HEIGHT - GRAPH_MARGIN.top - GRAPH_MARGIN.bottom)
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.attr('fill', 'var(--ghost)')
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},
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[GRAPH_MARGIN],
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)
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const buildXAxis = useCallback(
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g =>
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g
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.attr(
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'transform',
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`translate(0, ${GRAPH_HEIGHT - GRAPH_MARGIN.bottom})`,
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)
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.call(
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d3
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.axisBottom(x)
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.ticks(dataPoints[timeFrame].tick)
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.tickFormat(d => {
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return d3.timeFormat(dataPoints[timeFrame].labelFormat)(
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d.getTime() + d.getTimezoneOffset() * MINUTE,
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)
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}),
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)
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.call(g => g.select('.domain').remove()),
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[GRAPH_MARGIN, dataPoints, timeFrame, x],
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)
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const buildYAxis = useCallback(
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g =>
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g
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.attr('transform', `translate(${GRAPH_MARGIN.left}, 0)`)
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.call(
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d3
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.axisLeft(y)
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.ticks(5)
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.tickFormat(d => {
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if (d >= 1000) return numberToFiatAmount(d / 1000) + 'k'
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return numberToFiatAmount(d)
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}),
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)
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.call(g => g.select('.domain').remove())
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.selectAll('text')
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.attr('dy', '-0.25rem'),
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[GRAPH_MARGIN, y],
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)
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const buildGrid = useCallback(
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g => {
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g.attr('stroke', 'var(--zircon2)')
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.attr('fill', 'var(--zircon2)')
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// Vertical lines
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.call(g =>
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g
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.append('g')
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.selectAll('line')
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.data(buildTicks(x.domain()))
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.join('line')
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.attr('x1', d => 0.5 + x(d))
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.attr('x2', d => 0.5 + x(d))
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.attr('y1', GRAPH_MARGIN.top)
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.attr('y2', GRAPH_HEIGHT - GRAPH_MARGIN.bottom)
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.attr('stroke-width', 1),
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)
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// Horizontal lines
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.call(g =>
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g
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.append('g')
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.selectAll('line')
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.data(d3.axisLeft(y).scale().ticks(5))
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.join('line')
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.attr('y1', d => 0.5 + y(d))
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.attr('y2', d => 0.5 + y(d))
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.attr('x1', GRAPH_MARGIN.left)
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.attr('x2', GRAPH_WIDTH),
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)
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// Thick vertical lines
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.call(g =>
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g
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.append('g')
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.selectAll('line')
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.data(buildTicks(x.domain()).filter(filterDay))
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.join('line')
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.attr('class', 'dateSeparator')
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.attr('x1', d => 0.5 + x(d))
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.attr('x2', d => 0.5 + x(d))
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.attr('y1', GRAPH_MARGIN.top - 10)
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.attr('y2', GRAPH_HEIGHT - GRAPH_MARGIN.bottom)
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.attr('stroke-width', 2)
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.join('text'),
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)
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// Left side breakpoint label
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.call(g => {
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const separator = d3?.select('.dateSeparator')?.node()?.getBBox()
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if (!separator) return
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const breakpoint = buildTicks(x.domain()).filter(filterDay)
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const labels = getPastAndCurrentDayLabels(breakpoint)
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return g
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.append('text')
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.attr('x', separator.x - 7)
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.attr('y', separator.y)
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.attr('text-anchor', 'end')
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.attr('dy', '.25em')
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.text(labels.previous)
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})
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// Right side breakpoint label
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.call(g => {
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const separator = d3?.select('.dateSeparator')?.node()?.getBBox()
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if (!separator) return
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const breakpoint = buildTicks(x.domain()).filter(filterDay)
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const labels = getPastAndCurrentDayLabels(breakpoint)
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return g
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.append('text')
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.attr('x', separator.x + 7)
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.attr('y', separator.y)
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.attr('text-anchor', 'start')
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.attr('dy', '.25em')
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.text(labels.current)
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})
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},
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[GRAPH_MARGIN, buildTicks, getPastAndCurrentDayLabels, x, y, filterDay],
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)
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const formatTicksText = useCallback(
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() =>
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d3
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.selectAll('.tick text')
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.style('stroke', 'var(--comet)')
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.style('fill', 'var(--comet)')
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.style('stroke-width', 0)
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.style('font-family', 'var(--museo)'),
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[],
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)
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const formatText = useCallback(
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() =>
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d3
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.selectAll('text')
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.style('stroke', 'var(--comet)')
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.style('fill', 'var(--comet)')
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.style('stroke-width', 0)
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.style('font-family', 'var(--museo)'),
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[],
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)
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const formatTicks = useCallback(() => {
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d3.selectAll('.tick line')
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.style('stroke', 'transparent')
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.style('fill', 'transparent')
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}, [])
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const drawData = useCallback(
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g => {
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g.selectAll('circle')
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.data(data)
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.join('circle')
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.attr('cx', d => {
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const created = new Date(d.created)
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return x(created.setTime(created.getTime() + offset))
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})
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.attr('cy', d => y(new BigNumber(d.fiat).toNumber()))
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.attr('fill', d =>
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d.txClass === 'cashIn' ? 'var(--java)' : 'var(--neon)',
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)
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.attr('r', 3.5)
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},
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[data, offset, x, y],
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)
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const drawChart = useCallback(() => {
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const svg = d3
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.select(ref.current)
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.attr('viewBox', [0, 0, GRAPH_WIDTH, GRAPH_HEIGHT])
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svg.append('g').call(buildBackground)
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svg.append('g').call(buildGrid)
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svg.append('g').call(buildXAxis)
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svg.append('g').call(buildYAxis)
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svg.append('g').call(formatTicksText)
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svg.append('g').call(formatText)
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svg.append('g').call(formatTicks)
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svg.append('g').call(drawData)
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return svg.node()
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}, [
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buildBackground,
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buildGrid,
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buildXAxis,
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buildYAxis,
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drawData,
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formatText,
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formatTicks,
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formatTicksText,
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])
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useEffect(() => {
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d3.select(ref.current).selectAll('*').remove()
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drawChart()
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}, [drawChart])
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return <svg ref={ref} />
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}
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export default Graph
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