forked from MapComplete/MapComplete
		
	
		
			
				
	
	
		
			375 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			375 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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| 
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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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| 
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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("Could not extract data and labels for ", tr, " with features", features)
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     /**
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|         const chart = new ChartJs(config).SetClass(options?.chartclasses ?? "w-32 h-32")
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| 
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|         if (options.chartstyle !== undefined) {
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|             chart.SetStyle(options.chartstyle)
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|         }
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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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| 
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|         this.SetClass("block")
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|     }
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|         return { labels, data }
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|     }
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| }
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