mapcomplete/UI/BigComponents/TagRenderingChart.ts

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12 KiB
TypeScript

import ChartJs from "../Base/ChartJs";
import TagRenderingConfig from "../../Models/ThemeConfig/TagRenderingConfig";
import {ChartConfiguration} from 'chart.js';
import Combine from "../Base/Combine";
import {TagUtils} from "../../Logic/Tags/TagUtils";
import {Utils} from "../../Utils";
import {OsmFeature} from "../../Models/OsmFeature";
export interface TagRenderingChartOptions {
groupToOtherCutoff?: 3 | number,
sort?: boolean
}
export class StackedRenderingChart extends ChartJs {
constructor(tr: TagRenderingConfig, features: (OsmFeature & { properties: { date: string } })[], options?: {
period: "day" | "month",
groupToOtherCutoff?: 3 | number
}) {
const {labels, data} = TagRenderingChart.extractDataAndLabels(tr, features, {
sort: true,
groupToOtherCutoff: options?.groupToOtherCutoff
})
if (labels === undefined || data === undefined) {
throw ("No labels or data given...")
}
// labels: ["cyclofix", "buurtnatuur", ...]; data : [ ["cyclofix-changeset", "cyclofix-changeset", ...], ["buurtnatuur-cs", "buurtnatuur-cs"], ... ]
for (let i = labels.length; i >= 0; i--) {
if (data[i]?.length != 0) {
continue
}
data.splice(i, 1)
labels.splice(i, 1)
}
const datasets: { label: string /*themename*/, data: number[]/*counts per day*/, backgroundColor: string }[] = []
const allDays = StackedRenderingChart.getAllDays(features)
let trimmedDays = allDays.map(d => d.substr(0, d.indexOf("T")))
if (options?.period === "month") {
trimmedDays = trimmedDays.map(d => d.substr(0, 7))
}
trimmedDays = Utils.Dedup(trimmedDays)
for (let i = 0; i < labels.length; i++) {
const label = labels[i];
const changesetsForTheme = data[i]
const perDay: Record<string, OsmFeature[]> = {}
for (const changeset of changesetsForTheme) {
const csDate = new Date(changeset.properties.date)
Utils.SetMidnight(csDate)
let str = csDate.toISOString();
if (options?.period === "month") {
csDate.setUTCDate(1)
str = csDate.toISOString().substr(0, 7);
}
if (perDay[str] === undefined) {
perDay[str] = [changeset]
} else {
perDay[str].push(changeset)
}
}
const countsPerDay: number[] = []
for (let i = 0; i < trimmedDays.length; i++) {
const day = trimmedDays[i];
countsPerDay[i] = perDay[day]?.length ?? 0
}
let backgroundColor = TagRenderingChart.borderColors[i % TagRenderingChart.borderColors.length]
if (label === "Unknown") {
backgroundColor = TagRenderingChart.unkownBorderColor
}
if (label === "Other") {
backgroundColor = TagRenderingChart.otherBorderColor
}
datasets.push({
data: countsPerDay,
backgroundColor,
label
})
}
const perDayData = {
labels: trimmedDays,
datasets
}
const config = <ChartConfiguration>{
type: 'bar',
data: perDayData,
options: {
responsive: true,
legend: {
display: false
},
scales: {
x: {
stacked: true,
},
y: {
stacked: true
}
}
}
}
super(config)
}
public static getAllDays(features: (OsmFeature & { properties: { date: string } })[]): string[] {
let earliest: Date = undefined
let latest: Date = undefined;
let allDates = new Set<string>();
features.forEach((value, key) => {
const d = new Date(value.properties.date);
Utils.SetMidnight(d)
if (earliest === undefined) {
earliest = d
} else if (d < earliest) {
earliest = d
}
if (latest === undefined) {
latest = d
} else if (d > latest) {
latest = d
}
allDates.add(d.toISOString())
})
while (earliest < latest) {
earliest.setDate(earliest.getDate() + 1)
allDates.add(earliest.toISOString())
}
const days = Array.from(allDates)
days.sort()
return days
}
}
export default class TagRenderingChart extends Combine {
public static readonly unkownColor = 'rgba(128, 128, 128, 0.2)'
public static readonly unkownBorderColor = 'rgba(128, 128, 128, 0.2)'
public static readonly otherColor = 'rgba(128, 128, 128, 0.2)'
public static readonly otherBorderColor = 'rgba(128, 128, 255)'
public static readonly notApplicableColor = 'rgba(128, 128, 128, 0.2)'
public static readonly notApplicableBorderColor = 'rgba(255, 0, 0)'
public static readonly backgroundColors = [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
]
public static readonly borderColors = [
'rgba(255, 99, 132, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
]
/**
* Creates a chart about this tagRendering for the given data
*/
constructor(features: { properties: Record<string, string> }[], tagRendering: TagRenderingConfig, options?: TagRenderingChartOptions & {
chartclasses?: string,
chartstyle?: string,
includeTitle?: boolean,
chartType?: "pie" | "bar" | "doughnut"
}) {
if (tagRendering.mappings?.length === 0 && tagRendering.freeform?.key === undefined) {
super([])
this.SetClass("hidden")
return;
}
const {labels, data} = TagRenderingChart.extractDataAndLabels(tagRendering, features, options)
if (labels === undefined || data === undefined) {
super([])
this.SetClass("hidden")
return
}
const borderColor = [TagRenderingChart.unkownBorderColor, TagRenderingChart.otherBorderColor, TagRenderingChart.notApplicableBorderColor]
const backgroundColor = [TagRenderingChart.unkownColor, TagRenderingChart.otherColor, TagRenderingChart.notApplicableColor]
while (borderColor.length < data.length) {
borderColor.push(...TagRenderingChart.borderColors)
backgroundColor.push(...TagRenderingChart.backgroundColors)
}
for (let i = data.length; i >= 0; i--) {
if (data[i]?.length === 0) {
labels.splice(i, 1)
data.splice(i, 1)
borderColor.splice(i, 1)
backgroundColor.splice(i, 1)
}
}
let barchartMode = tagRendering.multiAnswer;
if (labels.length > 9) {
barchartMode = true;
}
const config = <ChartConfiguration>{
type: options.chartType ?? (barchartMode ? 'bar' : 'doughnut'),
data: {
labels,
datasets: [{
data: data.map(l => l.length),
backgroundColor,
borderColor,
borderWidth: 1,
label: undefined
}]
},
options: {
plugins: {
legend: {
display: !barchartMode
}
}
}
}
const chart = new ChartJs(config).SetClass(options?.chartclasses ?? "w-32 h-32");
if (options.chartstyle !== undefined) {
chart.SetStyle(options.chartstyle)
}
super([
options?.includeTitle ? (tagRendering.question.Clone() ?? tagRendering.id) : undefined,
chart])
this.SetClass("block")
}
public static extractDataAndLabels<T extends { properties: Record<string, string> }>(tagRendering: TagRenderingConfig, features: T[], options?: TagRenderingChartOptions): { labels: string[], data: T[][] } {
const mappings = tagRendering.mappings ?? []
options = options ?? {}
let unknownCount: T[] = [];
const categoryCounts: T[][] = mappings.map(_ => [])
const otherCounts: Record<string, T[]> = {}
let notApplicable: T[] = [];
for (const feature of features) {
const props = feature.properties
if (tagRendering.condition !== undefined && !tagRendering.condition.matchesProperties(props)) {
notApplicable.push(feature);
continue;
}
if (!tagRendering.IsKnown(props)) {
unknownCount.push(feature);
continue;
}
let foundMatchingMapping = false;
if (!tagRendering.multiAnswer) {
for (let i = 0; i < mappings.length; i++) {
const mapping = mappings[i];
if (mapping.if.matchesProperties(props)) {
categoryCounts[i].push(feature)
foundMatchingMapping = true
break;
}
}
} else {
for (let i = 0; i < mappings.length; i++) {
const mapping = mappings[i];
if (TagUtils.MatchesMultiAnswer(mapping.if, props)) {
categoryCounts[i].push(feature)
foundMatchingMapping = true
}
}
}
if (!foundMatchingMapping) {
if (tagRendering.freeform?.key !== undefined && props[tagRendering.freeform.key] !== undefined) {
const otherValue = props[tagRendering.freeform.key]
otherCounts[otherValue] = (otherCounts[otherValue] ?? [])
otherCounts[otherValue].push(feature)
} else {
unknownCount.push(feature)
}
}
}
if (unknownCount.length + notApplicable.length === features.length) {
console.log("Returning no label nor data: all features are unkown or notApplicable")
return {labels: undefined, data: undefined}
}
let otherGrouped: T[] = [];
const otherLabels: string[] = []
const otherData: T[][] = []
const sortedOtherCounts: [string, T[]][] = []
for (const v in otherCounts) {
sortedOtherCounts.push([v, otherCounts[v]]);
}
if (options?.sort) {
sortedOtherCounts.sort((a, b) => b[1].length - a[1].length)
}
for (const [v, count] of sortedOtherCounts) {
if (count.length >= (options.groupToOtherCutoff ?? 3)) {
otherLabels.push(v)
otherData.push(otherCounts[v])
} else {
otherGrouped.push(...count);
}
}
const labels = ["Unknown", "Other", "Not applicable", ...mappings?.map(m => m.then.txt) ?? [], ...otherLabels]
const data: T[][] = [unknownCount, otherGrouped, notApplicable, ...categoryCounts, ...otherData]
return {labels, data}
}
}