2020-06-23 12:43:19 +02:00
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// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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/* eslint
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@typescript-eslint/no-non-null-assertion: "off",
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@typescript-eslint/no-explicit-any: "off",
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*/
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2020-11-05 02:01:30 +01:00
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import type pb from "anki/backend_proto";
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2020-08-21 04:58:02 +02:00
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import { extent, histogram, sum } from "d3-array";
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2020-06-23 12:43:19 +02:00
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import { scaleLinear, scaleSequential } from "d3-scale";
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2021-01-08 17:57:47 +01:00
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import { CardType } from "anki/cards";
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2020-11-01 05:26:58 +01:00
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import type { HistogramData } from "./histogram-graph";
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2020-06-23 12:43:19 +02:00
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import { interpolateRdYlGn } from "d3-scale-chromatic";
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2020-11-05 02:01:30 +01:00
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import type { I18n } from "anki/i18n";
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2020-11-01 05:26:58 +01:00
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import type { TableDatum } from "./graph-helpers";
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2020-06-23 12:43:19 +02:00
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export interface GraphData {
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eases: number[];
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}
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export function gatherData(data: pb.BackendProto.GraphsOut): GraphData {
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2020-06-24 01:41:07 +02:00
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const eases = (data.cards as pb.BackendProto.Card[])
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2021-01-08 17:57:47 +01:00
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.filter((c) => [CardType.Review, CardType.Relearn].includes(c.ctype))
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2020-08-31 09:09:49 +02:00
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.map((c) => c.easeFactor / 10);
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2020-06-23 12:43:19 +02:00
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return { eases };
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}
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2020-08-21 04:58:02 +02:00
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export function prepareData(
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data: GraphData,
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i18n: I18n
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): [HistogramData | null, TableDatum[]] {
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2020-06-23 12:43:19 +02:00
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// get min/max
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const allEases = data.eases;
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if (!allEases.length) {
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2020-08-21 04:58:02 +02:00
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return [null, []];
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2020-06-23 12:43:19 +02:00
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}
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const total = allEases.length;
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const [_xMin, origXMax] = extent(allEases);
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let xMax = origXMax;
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const xMin = 130;
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xMax = xMax! + 1;
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const desiredBars = 20;
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const scale = scaleLinear().domain([130, xMax!]).nice();
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const bins = histogram()
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.domain(scale.domain() as any)
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.thresholds(scale.ticks(desiredBars))(allEases);
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const colourScale = scaleSequential(interpolateRdYlGn).domain([xMin, 300]);
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2020-06-28 12:52:38 +02:00
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function hoverText(data: HistogramData, binIdx: number, _percent: number): string {
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const bin = data.bins[binIdx];
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const minPct = Math.floor(bin.x0!);
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const maxPct = Math.floor(bin.x1!);
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const percent = maxPct - minPct <= 10 ? `${bin.x0}%` : `${bin.x0}%-${bin.x1}%`;
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return i18n.tr(i18n.TR.STATISTICS_CARD_EASE_TOOLTIP, {
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cards: bin.length,
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percent,
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});
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}
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2020-08-21 04:58:02 +02:00
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const xTickFormat = (num: number): string => `${num.toFixed(0)}%`;
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const tableData = [
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{
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label: i18n.tr(i18n.TR.STATISTICS_AVERAGE_EASE),
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value: xTickFormat(sum(allEases) / total),
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},
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];
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return [
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{ scale, bins, total, hoverText, colourScale, showArea: false, xTickFormat },
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tableData,
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];
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2020-06-23 12:43:19 +02:00
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}
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