Files
HowBadIsMyBatch/docs/SymptomsCausedByCOVIDLots/js/SymptomVsSymptomChartView.js
2023-11-10 18:45:45 +01:00

85 lines
2.3 KiB
JavaScript

class SymptomVsSymptomChartView {
#canvas;
#chart;
constructor(canvas) {
this.#canvas = canvas;
}
loadAndDisplayChart(symptomX, symptomY) {
return Promise
.all([symptomX, symptomY].map(symptom => PrrByVaccineProvider.getPrrByVaccine(symptom)))
.then(
([prrByLotX, prrByLotY]) => {
const { labels, data } = SymptomVsSymptomChartDataProvider.getChartData({ prrByLotX, prrByLotY });
this.#displayChart(symptomX, symptomY, labels, data);
return { labels, data };
});
}
#displayChart(symptomX, symptomY, labels, data) {
if (this.#chart != null) {
this.#chart.destroy();
}
this.#chart =
new Chart(
this.#canvas,
this.#getConfig(symptomX, symptomY, labels, data));
}
#getConfig(symptomX, symptomY, labels, data) {
return {
type: 'scatter',
data: this.#getData(labels, data),
options: this.#getOptions(symptomX, symptomY)
};
}
#getData(labels, data) {
return {
datasets:
[
{
labels: labels,
data: data,
backgroundColor: 'rgb(0, 0, 255)'
}
]
};
}
#getOptions(symptomX, symptomY) {
return {
scales: {
x: {
type: 'linear',
position: 'bottom',
title: this.#getAxisTitle(symptomX)
},
y: {
title: this.#getAxisTitle(symptomY)
}
},
plugins: {
legend: {
display: false
},
tooltip: {
callbacks: {
label: function (context) {
return 'Batch: ' + context.dataset.labels[context.dataIndex];
}
}
}
}
};
}
#getAxisTitle(symptom) {
return {
display: true,
text: 'PRR ratio of Batch for ' + symptom
}
}
}