Syasya
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706 lines
22 KiB
TypeScript
706 lines
22 KiB
TypeScript
import React, { useRef, useEffect, useState } from 'react';
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import { Line } from 'react-chartjs-2';
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import ChartJS from 'chart.js/auto';
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import zoomPlugin from 'chartjs-plugin-zoom';
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import {
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getISOWeek,
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startOfDay,
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endOfDay,
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startOfWeek,
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endOfWeek,
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startOfMonth,
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endOfMonth,
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startOfYear,
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endOfYear,
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} from 'date-fns';
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import { fetchPowerTimeseries, fetchForecast } from '@/app/utils/api';
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import { color } from 'html2canvas/dist/types/css/types/color';
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import DatePicker from 'react-datepicker';
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import 'react-datepicker/dist/react-datepicker.css';
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import './datepicker-dark.css'; // custom dark mode styles
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import 'chartjs-adapter-date-fns';
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ChartJS.register(zoomPlugin);
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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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interface EnergyLineChartProps {
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siteId: string;
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}
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function powerSeriesToEnergySeries(
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data: TimeSeriesEntry[],
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guessMinutes = 30
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): TimeSeriesEntry[] {
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if (!data?.length) return [];
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// Ensure ascending by time
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const sorted = [...data].sort(
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(a, b) => new Date(a.time).getTime() - new Date(b.time).getTime()
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);
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const out: TimeSeriesEntry[] = [];
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let lastDeltaMs: number | null = null;
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for (let i = 0; i < sorted.length; i++) {
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const t0 = new Date(sorted[i].time).getTime();
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const p0 = sorted[i].value; // kW
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let deltaMs: number;
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if (i < sorted.length - 1) {
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const t1 = new Date(sorted[i + 1].time).getTime();
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deltaMs = Math.max(0, t1 - t0);
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if (deltaMs > 0) lastDeltaMs = deltaMs;
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} else {
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// For the last point, assume previous cadence or a guess
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deltaMs = lastDeltaMs ?? guessMinutes * 60 * 1000;
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}
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const hours = deltaMs / (1000 * 60 * 60);
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const kwh = p0 * hours; // kW * h = kWh
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out.push({ time: sorted[i].time, value: kwh });
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}
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return out;
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}
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function groupTimeSeries(
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data: TimeSeriesEntry[],
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mode: 'day' | 'daily' | 'weekly' | 'monthly' | 'yearly',
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agg: 'mean' | 'max' | 'sum' = 'mean'
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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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let key = '';
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switch (mode) {
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case 'day': {
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// Snap to 5-minute buckets in local (KL) time
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const local = new Date(
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date.toLocaleString('en-US', { timeZone: 'Asia/Kuala_Lumpur' })
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);
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local.setSeconds(0, 0);
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key = local.toISOString();
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break;
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}
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case 'daily':
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key = date.toLocaleDateString('en-MY', {
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timeZone: 'Asia/Kuala_Lumpur',
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weekday: 'short',
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day: '2-digit',
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month: 'short',
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year: 'numeric',
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});
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break;
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case 'weekly':
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key = `${date.getFullYear()}-W${String(getISOWeek(date)).padStart(2, '0')}`;
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break;
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case 'monthly':
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key = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}`;
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break;
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case 'yearly':
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key = date.getFullYear().toString();
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break;
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}
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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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if (agg === 'sum') {
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const sum = values.reduce((a, b) => a + b, 0);
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return { time, value: sum };
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}
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const mean = values.reduce((a, b) => a + b, 0) / values.length;
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const max = values.reduce((a, b) => (b > a ? b : a), -Infinity);
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return { time, value: agg === 'max' ? max : mean };
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});
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}
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// ---- NEW: build a 5-minute time grid for the day view
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function buildTimeGrid(start: Date, end: Date, stepMinutes = 5): string[] {
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const grid: string[] = [];
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const t = new Date(start);
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t.setSeconds(0, 0);
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while (t.getTime() <= end.getTime()) {
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grid.push(new Date(t).toISOString());
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t.setTime(t.getTime() + stepMinutes * 60 * 1000);
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}
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return grid;
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}
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const EnergyLineChart = ({ siteId }: EnergyLineChartProps) => {
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const chartRef = useRef<any>(null);
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const [viewMode, setViewMode] = useState<'day' | 'daily' | 'weekly' | 'monthly' | 'yearly'>('day');
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const [consumption, setConsumption] = useState<TimeSeriesEntry[]>([]);
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const [generation, setGeneration] = useState<TimeSeriesEntry[]>([]);
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const [selectedDate, setSelectedDate] = useState(new Date());
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const [forecast, setForecast] = useState<TimeSeriesEntry[]>([]);
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const LIVE_REFRESH_MS = 300000; // 5min when viewing a single day
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const SLOW_REFRESH_MS = 600000; // 10min for weekly/monthly/yearly
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const fetchAndSet = React.useCallback(async () => {
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const now = new Date();
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let start: Date;
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let end: Date;
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switch (viewMode) {
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case 'day':
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start = startOfDay(selectedDate);
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end = endOfDay(selectedDate);
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break;
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case 'daily':
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start = startOfWeek(now, { weekStartsOn: 1 });
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end = endOfWeek(now, { weekStartsOn: 1 });
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break;
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case 'weekly':
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start = startOfMonth(now);
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end = endOfMonth(now);
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break;
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case 'monthly':
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start = startOfYear(now);
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end = endOfYear(now);
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break;
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case 'yearly':
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start = new Date('2020-01-01');
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end = now;
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break;
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}
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const isoStart = start.toISOString();
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const isoEnd = end.toISOString();
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try {
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const res = await fetchPowerTimeseries(siteId, isoStart, isoEnd);
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setConsumption(res.consumption);
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setGeneration(res.generation);
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} catch (error) {
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console.error('Failed to fetch energy timeseries:', error);
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}
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}, [siteId, viewMode, selectedDate]);
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// 3) Auto-refresh effect: initial load + interval (pauses when tab hidden)
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useEffect(() => {
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let timer: number | undefined;
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const tick = async () => {
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// Avoid wasted calls when the tab is in the background
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if (!document.hidden) {
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await fetchAndSet();
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}
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const ms = viewMode === 'day' ? LIVE_REFRESH_MS : SLOW_REFRESH_MS;
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timer = window.setTimeout(tick, ms);
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};
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// initial load
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fetchAndSet();
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// schedule next cycles
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timer = window.setTimeout(tick, viewMode === 'day' ? LIVE_REFRESH_MS : SLOW_REFRESH_MS);
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const onVis = () => {
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if (!document.hidden) {
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// kick immediately when user returns
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clearTimeout(timer);
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tick();
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}
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};
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document.addEventListener('visibilitychange', onVis);
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return () => {
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clearTimeout(timer);
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document.removeEventListener('visibilitychange', onVis);
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};
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}, [fetchAndSet, viewMode]);
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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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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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useEffect(() => {
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const now = new Date();
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let start: Date;
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let end: Date;
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switch (viewMode) {
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case 'day':
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start = startOfDay(selectedDate);
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end = endOfDay(selectedDate);
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break;
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case 'daily':
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start = startOfWeek(now, { weekStartsOn: 1 });
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end = endOfWeek(now, { weekStartsOn: 1 });
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break;
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case 'weekly':
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start = startOfMonth(now);
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end = endOfMonth(now);
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break;
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case 'monthly':
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start = startOfYear(now);
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end = endOfYear(now);
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break;
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case 'yearly':
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start = new Date('2020-01-01');
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end = now;
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break;
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}
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const isoStart = start.toISOString();
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const isoEnd = end.toISOString();
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const fetchData = async () => {
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try {
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const res = await fetchPowerTimeseries(siteId, isoStart, isoEnd);
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setConsumption(res.consumption);
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setGeneration(res.generation);
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// ⬇️ ADD THIS here — fetch forecast
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const forecastData = await fetchForecast(3.15, 101.7, 37, 0, 30.67);
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const selectedDateStr = selectedDate.toISOString().split('T')[0];
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setForecast(
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forecastData
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.filter(({ time }) => time.startsWith(selectedDateStr)) // ✅ filter only selected date
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.map(({ time, forecast }) => ({
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time,
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value: forecast
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}))
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);
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} catch (error) {
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console.error('Failed to fetch energy timeseries:', error);
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}
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};
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fetchData();
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}, [siteId, viewMode, selectedDate]);
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const isEnergyView = viewMode !== 'day';
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// Convert to energy series for aggregated views
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const consumptionForGrouping = isEnergyView
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? powerSeriesToEnergySeries(consumption, 30)
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: consumption;
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const generationForGrouping = isEnergyView
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? powerSeriesToEnergySeries(generation, 30)
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: generation;
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const forecastForGrouping = isEnergyView
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? powerSeriesToEnergySeries(forecast, 60) // if forecast is hourly, guess 60
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: forecast;
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// Group: sum for energy views, mean for day view
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const groupedConsumption = groupTimeSeries(
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consumptionForGrouping,
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viewMode,
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isEnergyView ? 'sum' : 'mean'
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);
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const groupedGeneration = groupTimeSeries(
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generationForGrouping,
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viewMode,
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isEnergyView ? 'sum' : 'mean'
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);
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const groupedForecast = groupTimeSeries(
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forecastForGrouping,
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viewMode,
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isEnergyView ? 'sum' : 'mean'
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);
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const forecastMap = Object.fromEntries(groupedForecast.map(d => [d.time, d.value]));
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const dataTimesDay = [
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...groupedConsumption.map(d => Date.parse(d.time)),
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...groupedGeneration.map(d => Date.parse(d.time)),
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...groupedForecast.map(d => Date.parse(d.time)),
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].filter(Number.isFinite).sort((a, b) => a - b);
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const dayGrid = viewMode === 'day'
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? buildTimeGrid(startOfDay(selectedDate), endOfDay(selectedDate), 1)
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: [];
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const unionTimes = Array.from(new Set([
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...groupedConsumption.map(d => d.time),
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...groupedGeneration.map(d => d.time),
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...groupedForecast.map(d => d.time),
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])).sort((a, b) => new Date(a).getTime() - new Date(b).getTime());
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const allTimes = viewMode === 'day' ? dayGrid : unionTimes;
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const consumptionMap = Object.fromEntries(groupedConsumption.map(d => [d.time, d.value]));
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const generationMap = Object.fromEntries(groupedGeneration.map(d => [d.time, d.value]));
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const [startIndex, setStartIndex] = useState(0);
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const [endIndex, setEndIndex] = useState(allTimes.length - 1);
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// after allTimes, consumptionMap, generationMap, forecastMap
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const hasDataAt = (t: string) =>
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t in consumptionMap || t in generationMap || t in forecastMap;
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const firstAvailableIndex = allTimes.findIndex(hasDataAt);
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const lastAvailableIndex = (() => {
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for (let i = allTimes.length - 1; i >= 0; i--) {
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if (hasDataAt(allTimes[i])) return i;
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}
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return -1;
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})();
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const selectableIndices =
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firstAvailableIndex === -1 || lastAvailableIndex === -1
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? []
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: Array.from(
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{ length: lastAvailableIndex - firstAvailableIndex + 1 },
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(_, k) => firstAvailableIndex + k
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);
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useEffect(() => {
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if (selectableIndices.length === 0) {
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setStartIndex(0);
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setEndIndex(Math.max(0, allTimes.length - 1));
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return;
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}
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const minIdx = selectableIndices[0];
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const maxIdx = selectableIndices[selectableIndices.length - 1];
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setStartIndex(prev => Math.min(Math.max(prev, minIdx), maxIdx));
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setEndIndex(prev => Math.min(Math.max(prev, minIdx), maxIdx));
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}, [viewMode, allTimes.length, firstAvailableIndex, lastAvailableIndex]);
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useEffect(() => {
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if (typeof window !== 'undefined') {
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import('hammerjs');
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}
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}, []);
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useEffect(() => {
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if (selectableIndices.length) {
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const minIdx = selectableIndices[0];
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const maxIdx = selectableIndices[selectableIndices.length - 1];
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setStartIndex(minIdx);
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setEndIndex(maxIdx);
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} else {
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setStartIndex(0);
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setEndIndex(Math.max(0, allTimes.length - 1));
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}
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// run whenever mode changes or the timeline changes
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}, [viewMode, allTimes, firstAvailableIndex, lastAvailableIndex]);
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const formatLabel = (key: string) => {
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switch (viewMode) {
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case 'day':
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return new Date(key).toLocaleTimeString('en-GB', {
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hour: '2-digit',
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minute: '2-digit',
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hour12: false,
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timeZone: 'Asia/Kuala_Lumpur',
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});
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case 'monthly':
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return new Date(`${key}-01`).toLocaleString('en-GB', { month: 'short', year: 'numeric' });
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case 'weekly':
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return key.replace('-', ' ');
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default:
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return key;
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}
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};
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const filteredLabels = allTimes.slice(startIndex, endIndex + 1);
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const minutesOfDayForLabels =
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viewMode === 'day'
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? filteredLabels.map((iso) => {
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const d = new Date(iso);
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const kl = new Date(d.toLocaleString('en-US', { timeZone: 'Asia/Kuala_Lumpur' }));
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return kl.getHours() * 60 + kl.getMinutes();
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})
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: [];
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// ---- CHANGED: use nulls for missing buckets (not zeros)
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const filteredConsumption = filteredLabels.map(t => (t in consumptionMap ? consumptionMap[t] : null));
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const filteredGeneration = filteredLabels.map(t => (t in generationMap ? generationMap[t] : null));
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const filteredForecast = filteredLabels.map(t => (t in forecastMap ? forecastMap[t] : null));
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const allValues = [...filteredConsumption, ...filteredGeneration].filter(
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(v): v is number => v !== null
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);
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const maxValue = allValues.length > 0 ? Math.max(...allValues) : 0;
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const yAxisSuggestedMax = maxValue * 1.15;
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const isDark = useIsDarkMode();
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const axisColor = isDark ? '#fff' : '#222';
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function areaGradient(ctx: any, hex: string, alphaTop = 0.22, alphaBottom = 0.02) {
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const { ctx: g, chartArea } = ctx.chart;
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if (!chartArea) return hex; // initial render fallback
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const gradient = g.createLinearGradient(0, chartArea.top, 0, chartArea.bottom);
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// top more opaque → bottom fades out
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gradient.addColorStop(0, hex + Math.floor(alphaTop * 255).toString(16).padStart(2, '0'));
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gradient.addColorStop(1, hex + Math.floor(alphaBottom * 255).toString(16).padStart(2, '0'));
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return gradient;
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}
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// Define colors for both light and dark modes
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const consumptionColor = isDark ? '#B80F0A' : '#EF4444'; // Example: Brighter red for dark mode
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const generationColor = isDark ? '#48A860' : '#22C55E'; // Example: Brighter green for dark mode
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const forecastColor = '#fcd913'; // A golden yellow that works well in both modes
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const yUnit = isEnergyView ? 'kWh' : 'kW';
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const yTitle = isEnergyView ? 'Energy (kWh)' : 'Power (kW)';
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const data = {
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labels: filteredLabels.map(formatLabel),
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datasets: [
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{
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label: 'Consumption',
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data: filteredConsumption,
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borderColor: consumptionColor,
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backgroundColor: (ctx: any) => areaGradient(ctx, consumptionColor),
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fill: true,
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tension: 0.2,
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spanGaps: true,
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pointRadius: 0.7, // default is 3, make smaller
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pointHoverRadius: 4, // a bit bigger on hover
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borderWidth: 2,
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},
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{
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label: 'Generation',
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data: filteredGeneration,
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borderColor: generationColor,
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backgroundColor: (ctx: any) => areaGradient(ctx, generationColor),
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fill: true,
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tension: 0.2,
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spanGaps: true,
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pointRadius: 0.7, // default is 3, make smaller
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pointHoverRadius: 4, // a bit bigger on hover
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borderWidth: 2,
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},
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{
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label: 'Forecasted Solar',
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data: filteredForecast,
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borderColor: '#fcd913',
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backgroundColor: (ctx: any) => areaGradient(ctx, '#fcd913', 0.18, 0.03),
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tension: 0.4,
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borderDash: [5, 5],
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fill: true,
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spanGaps: true,
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pointRadius: 2, // default is 3, make smaller
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pointHoverRadius: 4, // a bit bigger on hover
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borderWidth: 2,
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}
|
||
],
|
||
};
|
||
|
||
const options = {
|
||
responsive: true,
|
||
maintainAspectRatio: false,
|
||
normalized: true, // faster lookup
|
||
plugins: {
|
||
decimation: {
|
||
enabled: true,
|
||
algorithm: 'lttb', // best visual fidelity
|
||
samples: 400, // cap points actually drawn (~400 is a good default)
|
||
},
|
||
legend: {
|
||
position: 'top',
|
||
labels: {
|
||
color: axisColor, // legend text color
|
||
},
|
||
},
|
||
zoom: {
|
||
zoom: {
|
||
wheel: { enabled: true },
|
||
pinch: { enabled: true },
|
||
mode: 'x' as const,
|
||
},
|
||
pan: { enabled: true, mode: 'x' as const },
|
||
},
|
||
tooltip: {
|
||
enabled: true,
|
||
mode: 'index',
|
||
intersect: false,
|
||
backgroundColor: isDark ? '#232b3e' : '#fff',
|
||
titleColor: axisColor,
|
||
bodyColor: axisColor,
|
||
borderColor: isDark ? '#444' : '#ccc',
|
||
borderWidth: 1,
|
||
callbacks: {
|
||
label: (ctx: any) => {
|
||
const dsLabel = ctx.dataset.label || '';
|
||
const val = ctx.parsed.y;
|
||
return `${dsLabel}: ${val?.toFixed(2)} ${yUnit}`;
|
||
},
|
||
},
|
||
},
|
||
},
|
||
scales: {
|
||
x: {
|
||
type: 'category' as const,
|
||
title: {
|
||
display: true,
|
||
color: axisColor,
|
||
text:
|
||
viewMode === 'day'
|
||
? 'Time (HH:MM)'
|
||
: viewMode === 'daily'
|
||
? 'Day'
|
||
: viewMode === 'weekly'
|
||
? 'Week'
|
||
: viewMode === 'monthly'
|
||
? 'Month'
|
||
: 'Year',
|
||
font: { weight: 'normal' as const },
|
||
},
|
||
ticks: {
|
||
color: axisColor,
|
||
autoSkip: false, // let our callback decide
|
||
maxRotation: 0,
|
||
callback(
|
||
this: any,
|
||
tickValue: string | number,
|
||
index: number,
|
||
ticks: any[]
|
||
) {
|
||
if (viewMode !== 'day') return this.getLabelForValue(tickValue as number);
|
||
|
||
const scale = this.chart.scales.x;
|
||
const min = Math.max(0, Math.floor(scale.min ?? 0));
|
||
const max = Math.min(ticks.length - 1, Math.ceil(scale.max ?? ticks.length - 1));
|
||
const visibleCount = Math.max(1, max - min + 1);
|
||
|
||
let step = 30; // ≥ 6h
|
||
if (visibleCount < 80) step = 10;// 2–6h
|
||
|
||
// On a category scale, tickValue is usually the index (number).
|
||
const idx = typeof tickValue === 'number' ? tickValue : index;
|
||
const m = minutesOfDayForLabels[idx];
|
||
|
||
if (m != null && m % step === 0) {
|
||
return this.getLabelForValue(idx);
|
||
}
|
||
return ''; // hide crowded labels
|
||
},
|
||
},
|
||
},
|
||
y: {
|
||
beginAtZero: true,
|
||
suggestedMax: yAxisSuggestedMax,
|
||
title: { display: true, text: yTitle, color: axisColor, font: { weight: 'normal' as const } },
|
||
ticks: {
|
||
color: axisColor,
|
||
},
|
||
},
|
||
},
|
||
} as const;
|
||
|
||
const handleResetZoom = () => {
|
||
chartRef.current?.resetZoom();
|
||
};
|
||
|
||
return (
|
||
<div className="bg-white p-4 rounded-lg shadow-md dark:bg-rtgray-800 dark:text-white-light">
|
||
<div className="h-98 w-full" onDoubleClick={handleResetZoom}>
|
||
<div className="flex justify-between items-center mb-2">
|
||
<h2 className="text-lg font-bold dark:text-white-light">Energy Consumption & Generation</h2>
|
||
<button onClick={handleResetZoom} className="btn-primary px-8 py-2 text-sm">
|
||
Reset
|
||
</button>
|
||
</div>
|
||
|
||
<div className="mb-4 flex gap-4 items-center dark:text-white">
|
||
{viewMode === 'day' && (
|
||
<label className="font-medium">
|
||
Date:{' '}
|
||
<DatePicker
|
||
selected={selectedDate}
|
||
onChange={(date) => setSelectedDate(date!)}
|
||
dateFormat="dd/MM/yyyy" // ✅ sets correct format
|
||
className="dark:bg-rtgray-700 dark:text-white bg-white border border-rounded dark:border-rtgray-700 text-black p-1 rounded"
|
||
/>
|
||
</label>
|
||
)}
|
||
|
||
<label className="font-medium ">
|
||
From:{' '}
|
||
<select
|
||
value={startIndex}
|
||
onChange={(e) => {
|
||
const val = Number(e.target.value);
|
||
setStartIndex(val <= endIndex ? val : endIndex);
|
||
}}
|
||
disabled={selectableIndices.length === 0}
|
||
className="dark:bg-rtgray-700 border dark:border-rtgray-700 rounded p-1"
|
||
>
|
||
{selectableIndices.map((absIdx) => (
|
||
<option key={absIdx} value={absIdx}>{formatLabel(allTimes[absIdx])}</option>
|
||
))}
|
||
</select>
|
||
</label>
|
||
|
||
<label className="font-medium ">
|
||
To:{' '}
|
||
<select
|
||
value={endIndex}
|
||
onChange={(e) => {
|
||
const val = Number(e.target.value);
|
||
setEndIndex(val >= startIndex ? val : startIndex);
|
||
}}
|
||
disabled={selectableIndices.length === 0}
|
||
className="dark:bg-rtgray-700 border dark:border-rtgray-700 rounded p-1"
|
||
>
|
||
{selectableIndices.map((absIdx) => (
|
||
<option key={absIdx} value={absIdx}>{formatLabel(allTimes[absIdx])}</option>
|
||
))}
|
||
</select>
|
||
</label>
|
||
|
||
<label className="font-medium">
|
||
View:{' '}
|
||
<select
|
||
value={viewMode}
|
||
onChange={(e) => setViewMode(e.target.value as typeof viewMode)}
|
||
className="dark:bg-rtgray-700 border dark:border-rtgray-700 rounded p-1"
|
||
>
|
||
<option value="day">Day</option>
|
||
<option value="daily">Daily</option>
|
||
<option value="weekly">Weekly</option>
|
||
<option value="monthly">Monthly</option>
|
||
<option value="yearly">Yearly</option>
|
||
</select>
|
||
</label>
|
||
</div>
|
||
|
||
<div className="h-96 w-full">
|
||
<Line ref={chartRef} data={data} options={options} />
|
||
</div>
|
||
</div>
|
||
</div>
|
||
);
|
||
};
|
||
|
||
export default EnergyLineChart; |