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import React, {useState, useEffect, useRef} from "react";
import * as d3 from "d3";
const BarChart = () => {
const [data, setData] = useState<{ date: string; value: number }[]>([]);
const [filterType, setFilterType] = useState("year");
const [startDate, setStartDate] = useState("");
const [endDate, setEndDate] = useState("");
const chartRef = useRef<SVGSVGElement>(null);
const fetchData = async () => {
const result = [
{ date: "2018-01-01", value: 21050 },
{ date: "2018-02-01", value: 21050 },
{ date: "2018-03-01", value: 21050 },
{ date: "2018-04-01", value: 21050 },
{ date: "2018-05-01", value: 21050 },
{ date: "2018-06-01", value: 21050 },
{ date: "2018-07-01", value: 21050 },
{ date: "2018-08-01", value: 21050 },
{ date: "2018-09-01", value: 21050 },
{ date: "2018-10-01", value: 21050 },
{ date: "2018-11-01", value: 21050 },
{ date: "2018-12-01", value: 21050 },
{ date: "2019-01-01", value: 28203 },
{ date: "2019-02-01", value: 21050 },
{ date: "2019-03-01", value: 21050 },
{ date: "2019-04-01", value: 21050 },
{ date: "2019-05-01", value: 21050 },
{ date: "2019-06-01", value: 21050 },
{ date: "2019-07-01", value: 21050 },
{ date: "2019-08-01", value: 21050 },
{ date: "2019-09-01", value: 21050 },
{ date: "2019-10-01", value: 21050 },
{ date: "2019-11-01", value: 21050 },
{ date: "2019-12-01", value: 21050 },
{ date: "2020-01-01", value: 27420 },
{ date: "2020-02-01", value: 27420 },
{ date: "2020-03-01", value: 27420 },
{ date: "2020-04-01", value: 27420 },
{ date: "2020-05-01", value: 21050 },
{ date: "2020-06-01", value: 21050 },
{ date: "2020-07-01", value: 21050 },
{ date: "2020-08-01", value: 21050 },
{ date: "2020-09-01", value: 21050 },
{ date: "2020-10-01", value: 21050 },
{ date: "2020-11-01", value: 21050 },
{ date: "2020-12-01", value: 21050 },
{ date: "2021-01-01", value: 24128 },
{ date: "2021-02-01", value: 24128 },
{ date: "2021-03-01", value: 24128 },
{ date: "2021-04-01", value: 24128 },
{ date: "2021-05-01", value: 24128 },
{ date: "2021-06-01", value: 24128 },
{ date: "2021-07-01", value: 24128 },
{ date: "2021-08-01", value: 24128 },
{ date: "2021-09-01", value: 24128 },
{ date: "2021-10-01", value: 24128 },
{ date: "2021-11-01", value: 24128 },
{ date: "2021-12-01", value: 24128 },
{ date: "2022-01-01", value: 38806 },
{ date: "2022-02-01", value: 38806 },
{ date: "2022-03-01", value: 38806 },
{ date: "2022-04-01", value: 38806 },
{ date: "2022-05-01", value: 38806 },
{ date: "2022-06-01", value: 38806 },
{ date: "2022-07-01", value: 38806 },
{ date: "2022-08-01", value: 38806 },
{ date: "2022-09-01", value: 38806 },
{ date: "2022-10-01", value: 38806 },
{ date: "2022-11-01", value: 38806 },
{ date: "2022-12-01", value: 38806 },
{ date: "2023-01-01", value: 12999 },
{ date: "2023-02-01", value: 12999 },
{ date: "2023-03-01", value: 12999 },
{ date: "2023-04-01", value: 12999 },
{ date: "2023-05-01", value: 12999 },
{ date: "2023-06-01", value: 12999 },
{ date: "2023-07-01", value: 12999 },
{ date: "2023-08-01", value: 12999 },
{ date: "2023-09-01", value: 12999 },
{ date: "2023-10-01", value: 12999 },
{ date: "2023-11-01", value: 12999 },
{ date: "2023-12-01", value: 12999 },
];
console.log("Fetching data:", result);
setData(result);
};
useEffect(() => {
fetchData();
}, []);
useEffect(() => {
const filteredData = data.filter((entry) => {
const entryDate = new Date(entry.date);
if (filterType === "year") {
const startYear = new Date(`${startDate}T00:00:00`).getFullYear();
const endYear = new Date(`${endDate}T23:59:59`).getFullYear();
const entryYear = entryDate.getFullYear();
const isInRange = entryYear >= startYear && entryYear <= endYear;
return isInRange;
} else if (filterType === "month") {
const isInRange = entryDate >= new Date(`${startDate}T00:00:00`) && entryDate <= new Date(`${endDate}T23:59:59`);
return isInRange;
}
return false;
});
const svg = d3.select(chartRef.current);
svg.selectAll("*").remove();
const margin = { top: 20, right: 20, bottom: 60, left: 40 };
const width = 800 - margin.left - margin.right;
const height = 400 - margin.top - margin.bottom;
const x = d3.scaleBand()
.domain(filteredData.map((d) => d.date))
.range([0, width])
.padding(0.1);
const y = d3.scaleLinear()
.domain([0, d3.max(filteredData, (d) => d.value) || 0])
.range([height, 0]);
const xAxis = d3.axisBottom(x)
.tickFormat((d) => d)
.tickSizeOuter(0);
const yAxis = d3.axisLeft(y);
svg.append("g")
.attr("transform", `translate(${margin.left},${height + margin.top})`)
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", "rotate(-45)");
svg.append("g")
.attr("transform", `translate(${margin.left},${margin.top})`)
.call(yAxis);
svg.selectAll("rect")
.data(filteredData)
.enter().append("rect")
.attr("x", (d) => x(d.date) + margin.left)
.attr("width", x.bandwidth())
.attr("y", (d) => y(d.value) + margin.top)
.attr("height", (d) => height - y(d.value))
.attr("fill", "steelblue");
}, [data, filterType, startDate, endDate]);
const applyChanges = async () => {
console.log("Applying changes");
await fetchData();
};
return (
<div>
<div>
<label>
Affichage par :
<select value={filterType} onChange={(e) => setFilterType(e.target.value)}>
<option value="year">Année</option>
<option value="month">Mois</option>
</select>
</label>
</div>
<div>
<label>
Date de début :
<input type="date" value={startDate} onChange={(e) => setStartDate(e.target.value)} />
</label>
<label>
Date de fin :
<input type="date" value={endDate} onChange={(e) => setEndDate(e.target.value)} />
</label>
</div>
<button onClick={applyChanges}>Appliquer les changements</button>
<svg id="chart" width={800} height={400} ref={chartRef}></svg>
</div>
);
};
export default BarChart;