forked from MapComplete/MapComplete
381 lines
12 KiB
TypeScript
381 lines
12 KiB
TypeScript
import ChartJs from "../Base/ChartJs"
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import TagRenderingConfig from "../../Models/ThemeConfig/TagRenderingConfig"
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import { ChartConfiguration } from "chart.js"
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import Combine from "../Base/Combine"
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import { TagUtils } from "../../Logic/Tags/TagUtils"
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import { Utils } from "../../Utils"
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import { OsmFeature } from "../../Models/OsmFeature"
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export interface TagRenderingChartOptions {
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groupToOtherCutoff?: 3 | number
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sort?: boolean
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}
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export class StackedRenderingChart extends ChartJs {
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constructor(
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tr: TagRenderingConfig,
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features: (OsmFeature & { properties: { date: string } })[],
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options?: {
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period: "day" | "month"
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groupToOtherCutoff?: 3 | number
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}
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) {
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const { labels, data } = TagRenderingChart.extractDataAndLabels(tr, features, {
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sort: true,
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groupToOtherCutoff: options?.groupToOtherCutoff,
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})
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if (labels === undefined || data === undefined) {
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console.error(
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"Could not extract data and labels for ",
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tr,
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" with features",
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features,
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": no labels or no data"
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)
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throw "No labels or data given..."
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}
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// labels: ["cyclofix", "buurtnatuur", ...]; data : [ ["cyclofix-changeset", "cyclofix-changeset", ...], ["buurtnatuur-cs", "buurtnatuur-cs"], ... ]
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for (let i = labels.length; i >= 0; i--) {
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if (data[i]?.length != 0) {
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continue
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}
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data.splice(i, 1)
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labels.splice(i, 1)
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}
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const datasets: {
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label: string /*themename*/
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data: number[] /*counts per day*/
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backgroundColor: string
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}[] = []
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const allDays = StackedRenderingChart.getAllDays(features)
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let trimmedDays = allDays.map((d) => d.substr(0, 10))
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if (options?.period === "month") {
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trimmedDays = trimmedDays.map((d) => d.substr(0, 7))
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}
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trimmedDays = Utils.Dedup(trimmedDays)
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for (let i = 0; i < labels.length; i++) {
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const label = labels[i]
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const changesetsForTheme = data[i]
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const perDay: Record<string, OsmFeature[]> = {}
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for (const changeset of changesetsForTheme) {
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const csDate = new Date(changeset.properties.date)
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Utils.SetMidnight(csDate)
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let str = csDate.toISOString()
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str = str.substr(0, 10)
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if (options?.period === "month") {
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str = str.substr(0, 7)
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}
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if (perDay[str] === undefined) {
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perDay[str] = [changeset]
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} else {
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perDay[str].push(changeset)
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}
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}
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const countsPerDay: number[] = []
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for (let i = 0; i < trimmedDays.length; i++) {
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const day = trimmedDays[i]
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countsPerDay[i] = perDay[day]?.length ?? 0
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}
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let backgroundColor =
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TagRenderingChart.borderColors[i % TagRenderingChart.borderColors.length]
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if (label === "Unknown") {
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backgroundColor = TagRenderingChart.unkownBorderColor
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}
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if (label === "Other") {
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backgroundColor = TagRenderingChart.otherBorderColor
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}
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datasets.push({
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data: countsPerDay,
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backgroundColor,
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label,
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})
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}
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const perDayData = {
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labels: trimmedDays,
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datasets,
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}
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const config = <ChartConfiguration>{
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type: "bar",
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data: perDayData,
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options: {
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responsive: true,
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legend: {
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display: false,
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},
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scales: {
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x: {
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stacked: true,
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},
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y: {
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stacked: true,
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},
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},
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},
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}
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super(config)
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}
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public static getAllDays(
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features: (OsmFeature & { properties: { date: string } })[]
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): string[] {
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let earliest: Date = undefined
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let latest: Date = undefined
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let allDates = new Set<string>()
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features.forEach((value, key) => {
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const d = new Date(value.properties.date)
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Utils.SetMidnight(d)
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if (earliest === undefined) {
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earliest = d
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} else if (d < earliest) {
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earliest = d
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}
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if (latest === undefined) {
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latest = d
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} else if (d > latest) {
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latest = d
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}
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allDates.add(d.toISOString())
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})
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while (earliest < latest) {
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earliest.setDate(earliest.getDate() + 1)
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allDates.add(earliest.toISOString())
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}
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const days = Array.from(allDates)
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days.sort()
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return days
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}
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}
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export default class TagRenderingChart extends Combine {
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public static readonly unkownColor = "rgba(128, 128, 128, 0.2)"
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public static readonly unkownBorderColor = "rgba(128, 128, 128, 0.2)"
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public static readonly otherColor = "rgba(128, 128, 128, 0.2)"
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public static readonly otherBorderColor = "rgba(128, 128, 255)"
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public static readonly notApplicableColor = "rgba(128, 128, 128, 0.2)"
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public static readonly notApplicableBorderColor = "rgba(255, 0, 0)"
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public static readonly backgroundColors = [
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"rgba(255, 99, 132, 0.2)",
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"rgba(54, 162, 235, 0.2)",
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"rgba(255, 206, 86, 0.2)",
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"rgba(75, 192, 192, 0.2)",
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"rgba(153, 102, 255, 0.2)",
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"rgba(255, 159, 64, 0.2)",
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]
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public static readonly borderColors = [
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"rgba(255, 99, 132, 1)",
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"rgba(54, 162, 235, 1)",
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"rgba(255, 206, 86, 1)",
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"rgba(75, 192, 192, 1)",
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"rgba(153, 102, 255, 1)",
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"rgba(255, 159, 64, 1)",
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]
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/**
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* Creates a chart about this tagRendering for the given data
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*/
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constructor(
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features: { properties: Record<string, string> }[],
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tagRendering: TagRenderingConfig,
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options?: TagRenderingChartOptions & {
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chartclasses?: string
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chartstyle?: string
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includeTitle?: boolean
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chartType?: "pie" | "bar" | "doughnut"
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}
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) {
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if (tagRendering.mappings?.length === 0 && tagRendering.freeform?.key === undefined) {
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super([])
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this.SetClass("hidden")
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return
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}
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const { labels, data } = TagRenderingChart.extractDataAndLabels(
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tagRendering,
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features,
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options
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)
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if (labels === undefined || data === undefined) {
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super([])
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this.SetClass("hidden")
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return
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}
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const borderColor = [
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TagRenderingChart.unkownBorderColor,
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TagRenderingChart.otherBorderColor,
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TagRenderingChart.notApplicableBorderColor,
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]
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const backgroundColor = [
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TagRenderingChart.unkownColor,
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TagRenderingChart.otherColor,
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TagRenderingChart.notApplicableColor,
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]
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while (borderColor.length < data.length) {
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borderColor.push(...TagRenderingChart.borderColors)
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backgroundColor.push(...TagRenderingChart.backgroundColors)
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}
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for (let i = data.length; i >= 0; i--) {
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if (data[i]?.length === 0) {
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labels.splice(i, 1)
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data.splice(i, 1)
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borderColor.splice(i, 1)
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backgroundColor.splice(i, 1)
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}
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}
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let barchartMode = tagRendering.multiAnswer
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if (labels.length > 9) {
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barchartMode = true
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}
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const config = <ChartConfiguration>{
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type: options.chartType ?? (barchartMode ? "bar" : "doughnut"),
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data: {
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labels,
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datasets: [
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{
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data: data.map((l) => l.length),
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backgroundColor,
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borderColor,
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borderWidth: 1,
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label: undefined,
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},
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],
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},
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options: {
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plugins: {
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legend: {
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display: !barchartMode,
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},
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},
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},
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}
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const chart = new ChartJs(config).SetClass(options?.chartclasses ?? "w-32 h-32")
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if (options.chartstyle !== undefined) {
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chart.SetStyle(options.chartstyle)
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}
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super([
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options?.includeTitle ? tagRendering.question.Clone() ?? tagRendering.id : undefined,
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chart,
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])
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this.SetClass("block")
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}
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public static extractDataAndLabels<T extends { properties: Record<string, string> }>(
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tagRendering: TagRenderingConfig,
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features: T[],
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options?: TagRenderingChartOptions
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): { labels: string[]; data: T[][] } {
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const mappings = tagRendering.mappings ?? []
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options = options ?? {}
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let unknownCount: T[] = []
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const categoryCounts: T[][] = mappings.map((_) => [])
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const otherCounts: Record<string, T[]> = {}
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let notApplicable: T[] = []
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for (const feature of features) {
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const props = feature.properties
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if (
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tagRendering.condition !== undefined &&
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!tagRendering.condition.matchesProperties(props)
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) {
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notApplicable.push(feature)
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continue
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}
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if (!tagRendering.IsKnown(props)) {
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unknownCount.push(feature)
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continue
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}
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let foundMatchingMapping = false
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if (!tagRendering.multiAnswer) {
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for (let i = 0; i < mappings.length; i++) {
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const mapping = mappings[i]
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if (mapping.if.matchesProperties(props)) {
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categoryCounts[i].push(feature)
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foundMatchingMapping = true
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break
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}
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}
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} else {
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for (let i = 0; i < mappings.length; i++) {
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const mapping = mappings[i]
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if (TagUtils.MatchesMultiAnswer(mapping.if, props)) {
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categoryCounts[i].push(feature)
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foundMatchingMapping = true
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}
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}
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}
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if (!foundMatchingMapping) {
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if (
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tagRendering.freeform?.key !== undefined &&
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props[tagRendering.freeform.key] !== undefined
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) {
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const otherValue = props[tagRendering.freeform.key]
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otherCounts[otherValue] = otherCounts[otherValue] ?? []
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otherCounts[otherValue].push(feature)
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} else {
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unknownCount.push(feature)
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}
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}
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}
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if (unknownCount.length + notApplicable.length === features.length) {
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console.log("Returning no label nor data: all features are unkown or notApplicable")
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return { labels: undefined, data: undefined }
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}
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let otherGrouped: T[] = []
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const otherLabels: string[] = []
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const otherData: T[][] = []
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const sortedOtherCounts: [string, T[]][] = []
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for (const v in otherCounts) {
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sortedOtherCounts.push([v, otherCounts[v]])
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}
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if (options?.sort) {
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sortedOtherCounts.sort((a, b) => b[1].length - a[1].length)
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}
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for (const [v, count] of sortedOtherCounts) {
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if (count.length >= (options.groupToOtherCutoff ?? 3)) {
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otherLabels.push(v)
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otherData.push(otherCounts[v])
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} else {
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otherGrouped.push(...count)
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}
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}
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const labels = [
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"Unknown",
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"Other",
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"Not applicable",
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...(mappings?.map((m) => m.then.txt) ?? []),
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...otherLabels,
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]
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const data: T[][] = [
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unknownCount,
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otherGrouped,
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notApplicable,
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...categoryCounts,
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...otherData,
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]
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return { labels, data }
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}
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}
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