197 lines
6.0 KiB
TypeScript
197 lines
6.0 KiB
TypeScript
import React, { useEffect, useState } from 'react';
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import {
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BarChart,
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Bar,
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XAxis,
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YAxis,
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Tooltip,
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ResponsiveContainer,
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Legend,
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} from 'recharts';
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import { format } from 'date-fns';
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import { fetchPowerTimeseries } from '@/app/utils/api';
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interface MonthlyBarChartProps {
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siteId: string;
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}
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interface TimeSeriesEntry {
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time: string;
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value: number;
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}
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const groupTimeSeries = (
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data: TimeSeriesEntry[],
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mode: 'monthly'
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): TimeSeriesEntry[] => {
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const groupMap = new Map<string, number[]>();
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for (const entry of data) {
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const date = new Date(entry.time);
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const key = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}`;
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if (!groupMap.has(key)) groupMap.set(key, []);
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groupMap.get(key)!.push(entry.value);
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}
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return Array.from(groupMap.entries()).map(([time, values]) => ({
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time,
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value: values.reduce((sum, v) => sum + v, 0),
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}));
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};
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const MonthlyBarChart: React.FC<MonthlyBarChartProps> = ({ siteId }) => {
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const [chartData, setChartData] = useState<
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{ month: string; consumption: number; generation: number }[]
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>([]);
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const [loading, setLoading] = useState(true);
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function useIsDarkMode() {
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const [isDark, setIsDark] = useState(() =>
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typeof document !== 'undefined'
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? document.body.classList.contains('dark')
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: false
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);
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useEffect(() => {
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const check = () => setIsDark(document.body.classList.contains('dark'));
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check();
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// Listen for class changes on <body>
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const observer = new MutationObserver(check);
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observer.observe(document.body, { attributes: true, attributeFilter: ['class'] });
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return () => observer.disconnect();
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}, []);
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return isDark;
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}
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const isDark = useIsDarkMode();
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const consumptionColor = isDark ? '#ba8e23' : '#003049';
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const generationColor = isDark ? '#fcd913' : '#669bbc';
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useEffect(() => {
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if (!siteId) return;
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const fetchMonthlyData = async () => {
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setLoading(true);
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const start = '2025-01-01T00:00:00+08:00';
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const end = '2025-12-31T23:59:59+08:00';
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try {
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const res = await fetchPowerTimeseries(siteId, start, end);
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const groupedConsumption = groupTimeSeries(res.consumption, 'monthly');
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const groupedGeneration = groupTimeSeries(res.generation, 'monthly');
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const monthMap = new Map<string, { consumption: number; generation: number }>();
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for (const entry of groupedConsumption) {
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if (!monthMap.has(entry.time)) {
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monthMap.set(entry.time, { consumption: 0, generation: 0 });
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}
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monthMap.get(entry.time)!.consumption = entry.value;
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}
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for (const entry of groupedGeneration) {
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if (!monthMap.has(entry.time)) {
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monthMap.set(entry.time, { consumption: 0, generation: 0 });
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}
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monthMap.get(entry.time)!.generation = entry.value;
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}
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const formatted = Array.from(monthMap.entries())
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.sort(([a], [b]) => a.localeCompare(b))
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.map(([key, val]) => ({
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month: format(new Date(`${key}-01`), 'MMM'),
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consumption: val.consumption,
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generation: val.generation,
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}));
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setChartData(formatted.slice(-6)); // last 6 months
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} catch (error) {
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console.error('Failed to fetch monthly power data:', error);
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setChartData([]);
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} finally {
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setLoading(false);
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}
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};
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fetchMonthlyData();
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}, [siteId]);
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if (loading || !siteId || chartData.length === 0) {
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return (
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<div className="bg-white p-3 rounded-lg shadow-md dark:bg-rtgray-800 dark:text-white-light">
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<div className="h-[200px] w-full flex items-center justify-center">
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<p className="text-white/70">
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{loading ? 'Loading data...' : 'No data available for chart.'}
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</p>
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</div>
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</div>
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);
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}
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return (
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<div className="bg-white p-3 rounded-lg dark:bg-rtgray-800 dark:text-white-light">
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<div className="h-[200px] w-full">
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<ResponsiveContainer width="100%" height="100%">
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<BarChart data={chartData} >
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<XAxis
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dataKey="month"
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tick={{ fontSize: 10, fill: isDark ? '#fff' : '#222' }}
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axisLine={{ stroke: isDark ? '#fff' : '#222' }}
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tickLine={{ stroke: isDark ? '#fff' : '#222' }}
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/>
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<YAxis
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tick={{ fontSize: 10, fill: isDark ? '#fff' : '#222' }}
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axisLine={{ stroke: isDark ? '#fff' : '#222' }}
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tickLine={{ stroke: isDark ? '#fff' : '#222' }}
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label={{
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value: 'Power (kW)', // <-- Y-axis label
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angle: -90, // Vertical text
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position: 'insideLeft', // Position inside the chart area
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style: {
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textAnchor: 'middle',
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fill: isDark ? '#fff' : '#222',
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fontSize: 12,
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},
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}}
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/>
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<Tooltip
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formatter={(value: number) => [`${value.toFixed(2)} kWh`]}
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labelFormatter={(label) => `${label}`}
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contentStyle={{
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background: isDark ? '#232b3e' : '#fff',
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color: isDark ? '#fff' : '#222',
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border: isDark ? '1px solid #444' : '1px solid #ccc',
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}}
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labelStyle={{
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color: isDark ? '#fff' : '#222',
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}}
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cursor={{
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fill: isDark ? '#808080' : '#e0e7ef', // dark mode bg, light mode bg
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fillOpacity: isDark ? 0.6 : 0.3, // adjust opacity as you like
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}}
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/>
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<Legend
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wrapperStyle={{
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color: isDark ? '#fff' : '#222',
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}}
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/>
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<Bar dataKey="consumption" fill={consumptionColor} name="Consumption (kWh)" />
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<Bar dataKey="generation" fill={generationColor} name="Generation (kWh)" />
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</BarChart>
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</ResponsiveContainer>
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</div>
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</div>
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);
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};
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export default MonthlyBarChart;
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