feat: implement team lead dashboard with data fetching and chart display

2025-11-14 11:05:36 +01:00
parent 9b1f42c4ec
commit 38b9401b04
4 changed files with 241 additions and 0 deletions
--- a/src/app/dashboard/page.js
+++ b/src/app/dashboard/page.js
@@ -0,0 +1,134 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer } from 'recharts';
+
+export default function TeamLeadsDashboard() {
+	const [chartData, setChartData] = useState([]);
+	const [loading, setLoading] = useState(true);
+	const [error, setError] = useState(null);
+
+	useEffect(() => {
+		fetchDashboardData();
+	}, []);
+
+	const fetchDashboardData = async () => {
+		try {
+			const response = await fetch('/api/dashboard');
+			if (!response.ok) {
+				throw new Error('Failed to fetch dashboard data');
+			}
+			const data = await response.json();
+			setChartData(data);
+		} catch (err) {
+			setError(err.message);
+		} finally {
+			setLoading(false);
+		}
+	};
+
+	const formatCurrency = (value) => {
+		return new Intl.NumberFormat('pl-PL', {
+			style: 'currency',
+			currency: 'PLN',
+			minimumFractionDigits: 0,
+			maximumFractionDigits: 0
+		}).format(value);
+	};
+
+	const CustomTooltip = ({ active, payload, label }) => {
+		if (active && payload && payload.length) {
+			return (
+				<div className="bg-white dark:bg-gray-800 p-3 border border-gray-200 dark:border-gray-700 rounded-lg shadow-lg">
+					<p className="font-medium text-gray-900 dark:text-white">{`Month: ${label}`}</p>
+					<p className="text-blue-600 dark:text-blue-400">
+						{`Monthly Value: ${formatCurrency(payload[0].value)}`}
+					</p>
+					<p className="text-green-600 dark:text-green-400">
+						{`Cumulative: ${formatCurrency(payload[1].value)}`}
+					</p>
+				</div>
+			);
+		}
+		return null;
+	};
+
+	return (
+		<div className="container mx-auto px-4 py-8">
+			<h1 className="text-3xl font-bold text-gray-900 dark:text-white mb-8">
+				Dashboard
+			</h1>
+
+			<div className="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
+				<h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-6">
+					Project Completion Value Over Time
+				</h2>
+
+				{loading ? (
+					<div className="flex items-center justify-center h-64">
+						<div className="text-gray-500 dark:text-gray-400">Loading chart data...</div>
+					</div>
+				) : error ? (
+					<div className="flex items-center justify-center h-64">
+						<div className="text-red-500 dark:text-red-400">Error: {error}</div>
+					</div>
+				) : chartData.length === 0 ? (
+					<div className="flex items-center justify-center h-64">
+						<div className="text-gray-500 dark:text-gray-400">No completed projects data available</div>
+					</div>
+				) : (
+					<div className="h-96">
+						<ResponsiveContainer width="100%" height="100%">
+							<LineChart
+								data={chartData}
+								margin={{
+									top: 5,
+									right: 30,
+									left: 20,
+									bottom: 5,
+								}}
+							>
+								<CartesianGrid strokeDasharray="3 3" className="opacity-30" />
+								<XAxis
+									dataKey="month"
+									className="text-gray-600 dark:text-gray-400"
+									fontSize={12}
+								/>
+								<YAxis
+									className="text-gray-600 dark:text-gray-400"
+									fontSize={12}
+									tickFormatter={(value) => `${(value / 1000).toFixed(0)}k`}
+								/>
+								<Tooltip content={<CustomTooltip />} />
+								<Legend />
+								<Line
+									type="monotone"
+									dataKey="cumulative"
+									stroke="#10b981"
+									strokeWidth={3}
+									name="Cumulative Value"
+									dot={{ fill: '#10b981', strokeWidth: 2, r: 4 }}
+									activeDot={{ r: 6, stroke: '#10b981', strokeWidth: 2 }}
+								/>
+								<Line
+									type="monotone"
+									dataKey="value"
+									stroke="#3b82f6"
+									strokeWidth={2}
+									name="Monthly Value"
+									dot={{ fill: '#3b82f6', strokeWidth: 2, r: 3 }}
+									activeDot={{ r: 5, stroke: '#3b82f6', strokeWidth: 2 }}
+									strokeDasharray="5 5"
+								/>
+							</LineChart>
+						</ResponsiveContainer>
+					</div>
+				)}
+
+				<div className="mt-4 text-sm text-gray-600 dark:text-gray-400">
+					<p>This chart shows the cumulative value of completed projects over time, with monthly additions.</p>
+				</div>
+			</div>
+		</div>
+	);
+}