141 lines
3.9 KiB
TypeScript
141 lines
3.9 KiB
TypeScript
import {
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Chart as ChartJS,
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ChartData,
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ChartDataset,
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ChartOptions,
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Filler,
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LinearScale,
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LineElement,
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PointElement,
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} from 'chart.js';
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import { DeepPartial } from 'ts-essentials';
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import { useState } from 'react';
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import { deepmerge, deepmergeCustom } from 'deepmerge-ts';
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import { theme } from 'twin.macro';
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import { toRGBA } from '@/helpers';
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ChartJS.register(LineElement, PointElement, Filler, LinearScale);
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const options: ChartOptions<'line'> = {
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responsive: true,
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animation: false,
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plugins: {
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legend: { display: false },
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title: { display: false },
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tooltip: { enabled: false },
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},
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layout: {
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padding: 0,
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},
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scales: {
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x: {
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min: 0,
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max: 19,
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type: 'linear',
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grid: {
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display: false,
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drawBorder: false,
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},
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ticks: {
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display: false,
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},
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},
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y: {
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min: 0,
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type: 'linear',
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grid: {
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display: true,
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color: theme('colors.gray.700'),
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drawBorder: false,
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},
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ticks: {
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display: true,
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count: 3,
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color: theme('colors.gray.200'),
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font: {
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family: theme('fontFamily.sans'),
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size: 11,
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weight: '400',
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},
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},
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},
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},
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elements: {
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point: {
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radius: 0,
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},
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line: {
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tension: 0.3,
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},
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},
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};
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function getOptions (opts?: DeepPartial<ChartOptions<'line'>> | undefined): ChartOptions<'line'> {
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return deepmerge(options, opts || {});
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}
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type ChartDatasetCallback = (value: ChartDataset<'line'>, index: number) => ChartDataset<'line'>;
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function getEmptyData (label: string, sets = 1, callback?: ChartDatasetCallback | undefined): ChartData<'line'> {
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const next = callback || (value => value);
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return {
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labels: Array(20).fill(0).map((_, index) => index),
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datasets: Array(sets).fill(0).map((_, index) => next({
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fill: true,
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label,
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data: Array(20).fill(0),
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borderColor: theme('colors.cyan.400'),
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backgroundColor: toRGBA(theme('colors.cyan.700'), 0.5),
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}, index)),
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};
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}
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const merge = deepmergeCustom({ mergeArrays: false });
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interface UseChartOptions {
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sets: number;
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options?: DeepPartial<ChartOptions<'line'>> | number | undefined;
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callback?: ChartDatasetCallback | undefined;
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}
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function useChart (label: string, opts?: UseChartOptions) {
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const options = getOptions(typeof opts?.options === 'number' ? { scales: { y: { min: 0, suggestedMax: opts.options } } } : opts?.options);
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const [ data, setData ] = useState(getEmptyData(label, opts?.sets || 1, opts?.callback));
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const push = (items: number | null | ((number | null)[])) => setData(state => merge(state, {
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datasets: (Array.isArray(items) ? items : [ items ]).map((item, index) => ({
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...state.datasets[index],
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data: state.datasets[index].data.slice(1).concat(item),
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})),
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}));
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const clear = () => setData(state => merge(state, {
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datasets: state.datasets.map(value => ({
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...value,
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data: Array(20).fill(0),
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})),
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}));
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return { props: { data, options }, push, clear };
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}
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function useChartTickLabel (label: string, max: number, tickLabel: string) {
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return useChart(label, {
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sets: 1,
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options: {
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scales: {
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y: {
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suggestedMax: max,
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ticks: {
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callback (value) {
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return `${value}${tickLabel}`;
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},
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},
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},
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},
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},
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});
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}
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export { useChart, useChartTickLabel, getOptions, getEmptyData };
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