147 lines
3.2 KiB
Vue
147 lines
3.2 KiB
Vue
<template>
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<div class="chart">
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<canvas ref="purchase-chart" width="100" height="50"></canvas>
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<div ref="chartjsLegend" class="chartjsLegend"></div>
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</div>
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</template>
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<script>
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import Chartjs from "chart.js";
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import { chartPurchaseByColor } from "@/api";
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export default {
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async mounted() {
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let canvas = this.$refs["purchase-chart"].getContext("2d");
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let response = await chartPurchaseByColor();
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let labels = [];
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let blue = {
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label: "Blå",
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borderColor: "#57d2fb",
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backgroundColor: "#d4f2fe",
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borderWidth: 2,
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data: []
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};
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let yellow = {
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label: "Gul",
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borderColor: "#ffde5d",
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backgroundColor: "#fff6d6",
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borderWidth: 2,
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data: []
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};
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let red = {
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label: "Rød",
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borderColor: "#ef5878",
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backgroundColor: "#fbd7de",
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borderWidth: 2,
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data: []
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};
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let green = {
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label: "Grønn",
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borderColor: "#10e783",
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backgroundColor: "#c8f9df",
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borderWidth: 2,
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data: []
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};
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if (response.length == 1) {
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labels.push("");
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blue.data.push(0);
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yellow.data.push(0);
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red.data.push(0);
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green.data.push(0);
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}
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let highestNumber = 0;
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for (let i = 0; i < response.length; i++) {
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let thisDate = response[i];
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let dateObject = new Date(thisDate.date);
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labels.push(this.getPrettierDateString(dateObject));
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blue.data.push(thisDate.blue);
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yellow.data.push(thisDate.yellow);
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red.data.push(thisDate.red);
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green.data.push(thisDate.green);
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if (thisDate.blue > highestNumber) {
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highestNumber = thisDate.blue;
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}
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if (thisDate.yellow > highestNumber) {
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highestNumber = thisDate.yellow;
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}
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if (thisDate.green > highestNumber) {
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highestNumber = thisDate.green;
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}
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if (thisDate.red > highestNumber) {
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highestNumber = thisDate.red;
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}
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}
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let datasets = [blue, yellow, green, red];
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let chartdata = {
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labels: labels,
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datasets: datasets
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};
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let chart = new Chart(canvas, {
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type: "line",
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data: chartdata,
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options: {
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maintainAspectRatio: false,
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animation: {
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duration: 0 // general animation time
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},
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title: {
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display: true,
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text: "Antall kjøpt",
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fontSize: 20
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},
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legend: {
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display: true,
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boxWidth: 3,
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usePointStyle: true,
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borderRadius: 10,
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labels: {
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padding: 12,
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boxWidth: 20,
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usePointStyle: true
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}
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},
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scales: {
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yAxes: [
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{
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ticks: {
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beginAtZero: true,
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suggestedMax: highestNumber + 5
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}
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}
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]
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}
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}
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});
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},
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methods: {
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getPrettierDateString(date) {
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return `${this.pad(date.getDate())}.${this.pad(
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date.getMonth() + 1
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)}.${this.pad(date.getYear() - 100)}`;
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},
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pad(num) {
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if (num < 10) {
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return `0${num}`;
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}
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return num;
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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@import "../styles/media-queries.scss";
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.chart {
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height: 40vh;
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max-height: 500px;
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width: 100%;
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}
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</style>
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