74 lines
2 KiB
Svelte
74 lines
2 KiB
Svelte
<script>
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import { getContext, onMount } from "svelte"
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import { ApexOptionsBuilder } from "./ApexOptionsBuilder"
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import ApexChart from "./ApexChart.svelte"
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import { isEmpty } from "lodash/fp"
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const { API } = getContext("sdk")
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const dataContext = getContext("data")
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export let title
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export let datasource
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export let dateColumn
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export let openColumn
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export let highColumn
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export let lowColumn
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export let closeColumn
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export let xAxisLabel
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export let yAxisLabel
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export let height
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export let width
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export let animate
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export let yAxisUnits
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let options
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// Fetch data on mount
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onMount(async () => {
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const allCols = [dateColumn, openColumn, highColumn, lowColumn, closeColumn]
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if (isEmpty(datasource) || allCols.find(x => x == null)) {
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options = false
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return
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}
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// Fetch, filter and sort data
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const schema = (await API.fetchTableDefinition(datasource.tableId)).schema
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const result = await API.fetchDatasource(datasource)
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const reducer = row => (valid, column) => valid && row[column] != null
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const hasAllColumns = row => allCols.reduce(reducer(row), true)
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const data = result
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.filter(row => hasAllColumns(row))
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.slice(0, 100)
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.sort((a, b) => (a[dateColumn] > b[dateColumn] ? 1 : -1))
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if (!schema || !data.length) {
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options = false
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return
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}
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// Initialise default chart
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let builder = new ApexOptionsBuilder()
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.type("candlestick")
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.title(title)
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.width(width)
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.height(height)
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.xLabel(xAxisLabel)
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.yLabel(yAxisLabel)
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.animate(animate)
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.yUnits(yAxisUnits)
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.yTooltip(true)
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.xType("datetime")
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// Add data
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const parseDate = d => (isNaN(d) ? Date.parse(d).valueOf() : parseInt(d))
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const chartData = data.map(row => ({
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x: parseDate(row[dateColumn]),
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y: [row[openColumn], row[highColumn], row[lowColumn], row[closeColumn]],
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}))
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builder = builder.series([{ data: chartData }])
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// Build chart options
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options = builder.getOptions()
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})
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</script>
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<ApexChart {options} />
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