feat: Add date formatting utility functions and integrate them across components

src/app/contracts/[id]/page.js

@@ -9,6 +9,7 @@ import Badge from "@/components/ui/Badge";
 import PageContainer from "@/components/ui/PageContainer";
 import PageHeader from "@/components/ui/PageHeader";
 import { LoadingState } from "@/components/ui/States";
+import { formatDate } from "@/lib/utils";
 
 export default function ContractDetailsPage() {
 	const params = useParams();
@@ -135,7 +136,6 @@ export default function ContractDetailsPage() {
 										{contract.contract_number}
 									</p>
 								</div>
-
 								{contract.contract_name && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
@@ -146,7 +146,6 @@ export default function ContractDetailsPage() {
 										</p>
 									</div>
 								)}
-
 								{contract.customer_contract_number && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
@@ -157,7 +156,6 @@ export default function ContractDetailsPage() {
 										</p>
 									</div>
 								)}
-
 								{contract.customer && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
@@ -168,7 +166,6 @@ export default function ContractDetailsPage() {
 										</p>
 									</div>
 								)}
-
 								{contract.investor && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
@@ -178,30 +175,24 @@ export default function ContractDetailsPage() {
 											{contract.investor}
 										</p>
 									</div>
-								)}
+								)}{" "}
-
 								{contract.date_signed && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
 											Date Signed
 										</span>
 										<p className="text-gray-900 font-medium">
-											{new Date(contract.date_signed).toLocaleDateString(
+											{formatDate(contract.date_signed)}
-												"en-US"
-											)}
 										</p>
 									</div>
 								)}
-
 								{contract.finish_date && (
 									<div>
 										<span className="text-sm font-medium text-gray-500 block mb-1">
 											Finish Date
 										</span>
 										<p className="text-gray-900 font-medium">
-											{new Date(contract.finish_date).toLocaleDateString(
+											{formatDate(contract.finish_date)}
-												"en-US"
-											)}
 										</p>
 									</div>
 								)}
@@ -350,10 +341,8 @@ export default function ContractDetailsPage() {
 																d="M6 2a1 1 0 00-1 1v1H4a2 2 0 00-2 2v10a2 2 0 002 2h12a2 2 0 002-2V6a2 2 0 00-2-2h-1V3a1 1 0 10-2 0v1H7V3a1 1 0 00-1-1zm0 5a1 1 0 000 2h8a1 1 0 100-2H6z"
 																clipRule="evenodd"
 															/>
-														</svg>
+														</svg>{" "}
-														{new Date(project.finish_date).toLocaleDateString(
+														{formatDate(project.finish_date)}
-															"en-US"
-														)}
 													</div>
 												)}
 												<div className="flex items-center">

src/app/contracts/page.js

@@ -10,6 +10,7 @@ import PageHeader from "@/components/ui/PageHeader";
 import SearchBar from "@/components/ui/SearchBar";
 import FilterBar from "@/components/ui/FilterBar";
 import { LoadingState } from "@/components/ui/States";
+import { formatDate } from "@/lib/utils";
 
 export default function ContractsMainPage() {
 	const [contracts, setContracts] = useState([]);
@@ -485,11 +486,9 @@ export default function ContractsMainPage() {
 														</svg>
 														<span className="font-medium text-gray-700">
 															Zawarcie:
-														</span>
+														</span>{" "}
 														<span className="text-gray-600">
-															{new Date(
+															{formatDate(contract.date_signed)}
-																contract.date_signed
-															).toLocaleDateString("pl-PL")}
 														</span>
 													</div>
 												)}
@@ -510,11 +509,9 @@ export default function ContractsMainPage() {
 														</svg>
 														<span className="font-medium text-gray-700">
 															Zakończenie:
-														</span>
+														</span>{" "}
 														<span className="text-gray-600">
-															{new Date(
+															{formatDate(contract.finish_date)}
-																contract.finish_date
-															).toLocaleDateString("pl-PL")}
 														</span>
 													</div>
 												)}

src/app/page.js

@@ -20,6 +20,7 @@ import {
 	endOfWeek,
 	format,
 } from "date-fns";
+import { formatDate } from "@/lib/utils";
 
 export default function Home() {
 	const [stats, setStats] = useState({
@@ -767,7 +768,7 @@ export default function Home() {
 														{deadline.type === "project"
 															? deadline.city
 															: deadline.customer}{" "}
-														• {deadline.date}
+														• {formatDate(deadline.date)}
 													</p>
 												</div>
 											</div>
@@ -839,7 +840,7 @@ export default function Home() {
 													</div>
 													{project.finish_date && (
 														<p className="text-xs text-gray-500 mt-1">
-															Due: {project.finish_date}
+															Due: {formatDate(project.finish_date)}
 														</p>
 													)}
 												</div>

src/app/projects/[id]/page.js

@@ -9,6 +9,7 @@ import Button from "@/components/ui/Button";
 import Badge from "@/components/ui/Badge";
 import Link from "next/link";
 import { differenceInCalendarDays, parseISO } from "date-fns";
+import { formatDate } from "@/lib/utils";
 import PageContainer from "@/components/ui/PageContainer";
 import PageHeader from "@/components/ui/PageHeader";
 import ProjectStatusDropdown from "@/components/ProjectStatusDropdown";
@@ -172,13 +173,15 @@ export default async function ProjectViewPage({ params }) {
 									<p className="text-gray-900 font-medium">
 										{project.unit || "N/A"}
 									</p>
-								</div>
+								</div>{" "}
 								<div>
 									<span className="text-sm font-medium text-gray-500 block mb-1">
 										Deadline
 									</span>
 									<p className="text-gray-900 font-medium">
-										{project.finish_date || "N/A"}
+										{project.finish_date
+											? formatDate(project.finish_date)
+											: "N/A"}
 									</p>
 								</div>
 								<div>

src/app/projects/page.js

@@ -10,6 +10,7 @@ import PageContainer from "@/components/ui/PageContainer";
 import PageHeader from "@/components/ui/PageHeader";
 import SearchBar from "@/components/ui/SearchBar";
 import { LoadingState } from "@/components/ui/States";
+import { formatDate } from "@/lib/utils";
 
 export default function ProjectListPage() {
 	const [projects, setProjects] = useState([]);
@@ -245,12 +246,14 @@ export default function ProjectListPage() {
 										title={project.plot}
 									>
 										{project.plot || "N/A"}
-									</td>
+									</td>{" "}
 									<td
 										className="px-2 py-3 text-xs text-gray-600 truncate"
 										title={project.finish_date}
 									>
-										{project.finish_date || "N/A"}
+										{project.finish_date
+											? formatDate(project.finish_date)
+											: "N/A"}
 									</td>
 									<td className="px-2 py-3 text-xs text-gray-600 text-center font-semibold">
 										{project.project_type === "design"

src/app/tasks/page.js

@@ -8,6 +8,7 @@ import Badge from "@/components/ui/Badge";
 import TaskStatusDropdownSimple from "@/components/TaskStatusDropdownSimple";
 import { Input } from "@/components/ui/Input";
 import { formatDistanceToNow, parseISO } from "date-fns";
+import { formatDate } from "@/lib/utils";
 import PageContainer from "@/components/ui/PageContainer";
 import PageHeader from "@/components/ui/PageHeader";
 import SearchBar from "@/components/ui/SearchBar";

src/components/ContractForm.js

@@ -5,6 +5,7 @@ import { useRouter } from "next/navigation";
 import { Card, CardHeader, CardContent } from "@/components/ui/Card";
 import Button from "@/components/ui/Button";
 import { Input } from "@/components/ui/Input";
+import { formatDateForInput } from "@/lib/utils";
 
 export default function ContractForm() {
 	const [form, setForm] = useState({
@@ -133,11 +134,11 @@ export default function ContractForm() {
 						<div>
 							<label className="block text-sm font-medium text-gray-700 mb-2">
 								Date Signed
-							</label>
+							</label>{" "}
 							<Input
 								type="date"
 								name="date_signed"
-								value={form.date_signed || ""}
+								value={formatDateForInput(form.date_signed)}
 								onChange={handleChange}
 							/>
 						</div>
@@ -145,11 +146,11 @@ export default function ContractForm() {
 						<div className="md:col-span-2">
 							<label className="block text-sm font-medium text-gray-700 mb-2">
 								Finish Date
-							</label>
+							</label>{" "}
 							<Input
 								type="date"
 								name="finish_date"
-								value={form.finish_date || ""}
+								value={formatDateForInput(form.finish_date)}
 								onChange={handleChange}
 							/>
 						</div>

src/components/ProjectForm.js

@@ -5,6 +5,7 @@ import { useRouter } from "next/navigation";
 import { Card, CardHeader, CardContent } from "@/components/ui/Card";
 import Button from "@/components/ui/Button";
 import { Input } from "@/components/ui/Input";
+import { formatDateForInput } from "@/lib/utils";
 
 export default function ProjectForm({ initialData = null }) {
 	const [form, setForm] = useState({
@@ -214,11 +215,11 @@ export default function ProjectForm({ initialData = null }) {
 							<div>
 								<label className="block text-sm font-medium text-gray-700 mb-2">
 									Finish Date
-								</label>
+								</label>{" "}
 								<Input
 									type="date"
 									name="finish_date"
-									value={form.finish_date || ""}
+									value={formatDateForInput(form.finish_date)}
 									onChange={handleChange}
 								/>
 							</div>

src/components/ProjectTasksDashboard.js

@@ -13,6 +13,7 @@ import {
 	parseISO,
 	formatDistanceToNow,
 } from "date-fns";
+import { formatDate } from "@/lib/utils";
 
 export default function ProjectTasksDashboard() {
 	const [allTasks, setAllTasks] = useState([]);

src/components/ProjectTasksSection.js

@@ -6,6 +6,7 @@ import TaskStatusDropdownSimple from "./TaskStatusDropdownSimple";
 import { Card, CardHeader, CardContent } from "./ui/Card";
 import Button from "./ui/Button";
 import Badge from "./ui/Badge";
+import { formatDate } from "@/lib/utils";
 
 export default function ProjectTasksSection({ projectId }) {
 	const [projectTasks, setProjectTasks] = useState([]);
@@ -444,7 +445,7 @@ export default function ProjectTasksSection({ projectId }) {
 												</td>{" "}
 												<td className="px-4 py-4 text-sm text-gray-600">
 													{task.date_started
-														? new Date(task.date_started).toLocaleDateString()
+														? formatDate(task.date_started)
 														: "Not started"}
 												</td>{" "}
 												<td className="px-4 py-4">
@@ -519,15 +520,11 @@ export default function ProjectTasksSection({ projectId }) {
 																					</div>
 																					<p className="text-sm text-gray-800">
 																						{note.note}
-																					</p>
+																					</p>{" "}
 																					<p className="text-xs text-gray-500 mt-1">
-																						{new Date(
+																						{formatDate(note.note_date, {
-																							note.note_date
+																							includeTime: true,
-																						).toLocaleDateString()}{" "}
+																						})}
-																						at{" "}
-																						{new Date(
-																							note.note_date
-																						).toLocaleTimeString()}
 																					</p>
 																				</div>
 																				{!note.is_system && (

src/lib/utils.js

@@ -38,3 +38,53 @@ export const getDeadlineText = (daysRemaining) => {
 	if (daysRemaining > 0) return `${daysRemaining} days left`;
 	return `${Math.abs(daysRemaining)} days overdue`;
 };
+
+export const formatDate = (date, options = {}) => {
+	if (!date) return "";
+
+	try {
+		const dateObj = typeof date === "string" ? new Date(date) : date;
+
+		if (isNaN(dateObj.getTime())) {
+			return "Invalid date";
+		}
+
+		// Default to DD.MM.YYYY format
+		const day = String(dateObj.getDate()).padStart(2, "0");
+		const month = String(dateObj.getMonth() + 1).padStart(2, "0");
+		const year = dateObj.getFullYear();
+
+		if (options.includeTime) {
+			const hours = String(dateObj.getHours()).padStart(2, "0");
+			const minutes = String(dateObj.getMinutes()).padStart(2, "0");
+			return `${day}.${month}.${year} ${hours}:${minutes}`;
+		}
+
+		return `${day}.${month}.${year}`;
+	} catch (error) {
+		console.error("Error formatting date:", error);
+		return "Invalid date";
+	}
+};
+
+export const formatDateForInput = (date) => {
+	if (!date) return "";
+
+	try {
+		const dateObj = typeof date === "string" ? new Date(date) : date;
+
+		if (isNaN(dateObj.getTime())) {
+			return "";
+		}
+
+		// Format as YYYY-MM-DD for HTML date inputs
+		const year = dateObj.getFullYear();
+		const month = String(dateObj.getMonth() + 1).padStart(2, "0");
+		const day = String(dateObj.getDate()).padStart(2, "0");
+
+		return `${year}-${month}-${day}`;
+	} catch (error) {
+		console.error("Error formatting date for input:", error);
+		return "";
+	}
+};