First protorype

2026-06-22 07:00:55 +03:00 · 2025-07-04 12:24:00 +03:00
parent 325b0bdc30
commit 024e5ca656
26 changed files with 1278 additions and 1 deletions
@@ -8,8 +8,12 @@
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@@ -4791,6 +5035,38 @@
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+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
    "node_modules/which": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -9,8 +9,12 @@
    "lint": "next lint"
  },
  "dependencies": {
+    "@auth/prisma-adapter": "^2.10.0",
+    "@next-auth/prisma-adapter": "^1.0.7",
    "@prisma/client": "^6.11.0",
+    "bcryptjs": "^3.0.2",
    "next": "15.3.4",
+    "next-auth": "^4.24.11",
    "react": "^19.0.0",
    "react-dom": "^19.0.0"
  },
@@ -0,0 +1,59 @@
+-- CreateEnum
+CREATE TYPE "FuelType" AS ENUM ('GASOLINE', 'DIESEL', 'LPG');
+
+-- CreateEnum
+CREATE TYPE "Currency" AS ENUM ('EUR', 'USD', 'RON', 'GBP');
+
+-- CreateTable
+CREATE TABLE "User" (
+    "id" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "hashedPassword" TEXT NOT NULL,
+
+    CONSTRAINT "User_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "Car" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "fuelType" "FuelType" NOT NULL,
+
+    CONSTRAINT "Car_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "FillUp" (
+    "id" TEXT NOT NULL,
+    "carId" TEXT NOT NULL,
+    "mileage" INTEGER NOT NULL,
+    "liters" DOUBLE PRECISION NOT NULL,
+    "cost" DOUBLE PRECISION NOT NULL,
+    "currency" "Currency" NOT NULL,
+    "date" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "FillUp_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "MileageEntry" (
+    "id" TEXT NOT NULL,
+    "carId" TEXT NOT NULL,
+    "mileage" INTEGER NOT NULL,
+    "date" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "MileageEntry_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_email_key" ON "User"("email");
+
+-- AddForeignKey
+ALTER TABLE "Car" ADD CONSTRAINT "Car_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "FillUp" ADD CONSTRAINT "FillUp_carId_fkey" FOREIGN KEY ("carId") REFERENCES "Car"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "MileageEntry" ADD CONSTRAINT "MileageEntry_carId_fkey" FOREIGN KEY ("carId") REFERENCES "Car"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
@@ -0,0 +1,12 @@
+/*
+  Warnings:
+
+  - Added the required column `make` to the `Car` table without a default value. This is not possible if the table is not empty.
+  - Added the required column `model` to the `Car` table without a default value. This is not possible if the table is not empty.
+  - Added the required column `year` to the `Car` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "Car" ADD COLUMN     "make" TEXT NOT NULL,
+ADD COLUMN     "model" TEXT NOT NULL,
+ADD COLUMN     "year" INTEGER NOT NULL;
@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (e.g., Git)
+provider = "postgresql"
@@ -10,6 +10,7 @@ datasource db {
 model User {
  id    String @id @default(cuid())
  email String @unique
+  hashedPassword String
  cars  Car[]
 }

@@ -17,12 +18,18 @@ model Car {
  id       String   @id @default(cuid())
  user     User     @relation(fields: [userId], references: [id])
  userId   String
-  name     String
+
+  name     String        // User-defined name (e.g. "Red BMW")
+  make     String        // Manufacturer (e.g. "BMW")
+  model    String        // Model (e.g. "320i")
+  year     Int           // Year (e.g. 2019)
  fuelType FuelType
+
  fillUps  FillUp[]
  mileage  MileageEntry[]
 }

+
 model FillUp {
  id       String   @id @default(cuid())
  car      Car      @relation(fields: [carId], references: [id])
@@ -0,0 +1,44 @@
+import NextAuth, { AuthOptions } from "next-auth";
+import CredentialsProvider from "next-auth/providers/credentials";
+import { PrismaAdapter } from "@auth/prisma-adapter";
+import { prisma } from "@/lib/prisma";
+import bcrypt from "bcryptjs";
+
+export const authOptions: AuthOptions = {
+  adapter: PrismaAdapter(prisma),
+  providers: [
+    CredentialsProvider({
+      name: "Credentials",
+      credentials: {
+        email: { label: "Email", type: "text" },
+        password: { label: "Password", type: "password" },
+      },
+      async authorize(credentials) {
+        // Check for missing credentials
+        if (!credentials?.email || !credentials?.password) {
+          return null;
+        }
+
+        // Find user by email
+        const user = await prisma.user.findUnique({
+          where: { email: credentials.email },
+        });
+
+        // Validate password
+        if (user && await bcrypt.compare(credentials.password, user.hashedPassword)) {
+          return user;
+        }
+
+        // Return null if authentication fails
+        return null;
+      },
+    }),
+  ],
+  session: { strategy: "jwt" },
+  pages: {
+    signIn: "/auth/login",
+  },
+};
+
+const handler = NextAuth(authOptions);
+export { handler as GET, handler as POST };
@@ -0,0 +1,27 @@
+import { NextResponse } from 'next/server';
+import { prisma } from '@/lib/prisma';
+import bcrypt from 'bcryptjs';
+
+export async function POST(req: Request) {
+  const { email, password } = await req.json();
+
+  if (!email || !password) {
+    return NextResponse.json({ message: 'Email and password are required' }, { status: 400 });
+  }
+
+  const existingUser = await prisma.user.findUnique({ where: { email } });
+  if (existingUser) {
+    return NextResponse.json({ message: 'Email already exists' }, { status: 400 });
+  }
+
+  const hashedPassword = await bcrypt.hash(password, 10);
+
+  await prisma.user.create({
+    data: {
+      email,
+      hashedPassword,
+    },
+  });
+
+  return NextResponse.json({ message: 'User registered successfully' }, { status: 200 });
+}
@@ -0,0 +1,36 @@
+import { NextResponse } from 'next/server';
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+
+export async function POST(req: Request) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ message: 'Unauthorized' }, { status: 401 });
+
+  const body = await req.json();
+  const { name, make, model, year, fuelType } = body;
+
+  if (!name || !make || !model || !year || !fuelType) {
+    return NextResponse.json({ message: 'Missing fields' }, { status: 400 });
+  }
+
+  const user = await prisma.user.findUnique({
+    where: { email: session.user?.email! },
+  });
+
+  if (!user) {
+    return NextResponse.json({ message: 'User not found' }, { status: 404 });
+  }
+
+  await prisma.car.create({
+    data: {
+      name,
+      make,
+      model,
+      year: parseInt(year),
+      fuelType,
+      userId: user.id,
+    },
+  });
+
+  return NextResponse.json({ message: 'Car added successfully' }, { status: 200 });
+}
@@ -0,0 +1,54 @@
+import { NextResponse } from 'next/server';
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+
+export async function GET(req: Request) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ message: 'Unauthorized' }, { status: 401 });
+
+  const { searchParams } = new URL(req.url);
+  const carId = searchParams.get('carId');
+
+  const fillUps = await prisma.fillUp.findMany({
+    where: {
+      car: {
+        id: carId || '',
+        user: { email: session.user?.email! },
+      },
+    },
+    orderBy: { date: 'desc' },
+  });
+
+  return NextResponse.json(fillUps);
+}
+
+export async function POST(req: Request) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ message: 'Unauthorized' }, { status: 401 });
+
+  const { carId, mileage, liters, cost, currency } = await req.json();
+  if (!carId || !mileage || !liters || !cost || !currency) {
+    return NextResponse.json({ message: 'Missing fields' }, { status: 400 });
+  }
+
+  const car = await prisma.car.findFirst({
+    where: {
+      id: carId,
+      user: { email: session.user?.email! },
+    },
+  });
+
+  if (!car) return NextResponse.json({ message: 'Car not found' }, { status: 404 });
+
+  const fillUp = await prisma.fillUp.create({
+    data: {
+      mileage: parseInt(mileage),
+      liters: parseFloat(liters),
+      cost: parseFloat(cost),
+      currency,
+      carId,
+    },
+  });
+
+  return NextResponse.json(fillUp);
+}
@@ -0,0 +1,55 @@
+import { NextResponse } from 'next/server';
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+
+// GET: Return mileage entries for a car
+export async function GET(req: Request) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ message: 'Unauthorized' }, { status: 401 });
+
+  const { searchParams } = new URL(req.url);
+  const carId = searchParams.get('carId');
+
+  const entries = await prisma.mileageEntry.findMany({
+    where: {
+      car: {
+        id: carId || '',
+        user: {
+          email: session.user?.email!,
+        },
+      },
+    },
+    orderBy: { date: 'desc' },
+  });
+
+  return NextResponse.json(entries);
+}
+
+// POST: Add mileage entry
+export async function POST(req: Request) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ message: 'Unauthorized' }, { status: 401 });
+
+  const { carId, mileage } = await req.json();
+  if (!carId || !mileage) {
+    return NextResponse.json({ message: 'Missing fields' }, { status: 400 });
+  }
+
+  const car = await prisma.car.findFirst({
+    where: {
+      id: carId,
+      user: { email: session.user?.email! },
+    },
+  });
+
+  if (!car) return NextResponse.json({ message: 'Car not found' }, { status: 404 });
+
+  const entry = await prisma.mileageEntry.create({
+    data: {
+      mileage: parseInt(mileage),
+      carId,
+    },
+  });
+
+  return NextResponse.json(entry);
+}
@@ -0,0 +1,56 @@
+'use client';
+
+import { useState } from 'react';
+import { signIn } from 'next-auth/react';
+import { useRouter } from 'next/navigation';
+
+export default function LoginPage() {
+  const router = useRouter();
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const res = await signIn('credentials', {
+      redirect: false,
+      email,
+      password,
+    });
+
+    if (res?.ok) {
+      router.push('/dashboard');
+    } else {
+      setError('Invalid credentials');
+    }
+  };
+
+  return (
+    <main className="max-w-md mx-auto p-6">
+      <h1 className="text-2xl font-bold mb-4">Login</h1>
+      <form onSubmit={handleSubmit} className="space-y-4">
+        <input
+          type="email"
+          placeholder="Email"
+          value={email}
+          required
+          onChange={(e) => setEmail(e.target.value)}
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          type="password"
+          placeholder="Password"
+          value={password}
+          required
+          onChange={(e) => setPassword(e.target.value)}
+          className="w-full border px-3 py-2 rounded"
+        />
+        <button type="submit" className="w-full bg-blue-600 text-white py-2 rounded">
+          Sign In
+        </button>
+        {error && <p className="text-red-500">{error}</p>}
+      </form>
+    </main>
+  );
+}
@@ -0,0 +1,56 @@
+'use client';
+
+import { useState } from 'react';
+import { useRouter } from 'next/navigation';
+
+export default function RegisterPage() {
+  const router = useRouter();
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+
+  const handleRegister = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const res = await fetch('/api/auth/register', {
+      method: 'POST',
+      body: JSON.stringify({ email, password }),
+      headers: { 'Content-Type': 'application/json' },
+    });
+
+    if (res.ok) {
+      router.push('/auth/login');
+    } else {
+      const data = await res.json();
+      setError(data.message || 'Registration failed');
+    }
+  };
+
+  return (
+    <main className="max-w-md mx-auto p-6">
+      <h1 className="text-2xl font-bold mb-4">Register</h1>
+      <form onSubmit={handleRegister} className="space-y-4">
+        <input
+          type="email"
+          placeholder="Email"
+          value={email}
+          required
+          onChange={(e) => setEmail(e.target.value)}
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          type="password"
+          placeholder="Password"
+          value={password}
+          required
+          onChange={(e) => setPassword(e.target.value)}
+          className="w-full border px-3 py-2 rounded"
+        />
+        <button type="submit" className="w-full bg-green-600 text-white py-2 rounded">
+          Register
+        </button>
+        {error && <p className="text-red-500">{error}</p>}
+      </form>
+    </main>
+  );
+}
@@ -0,0 +1,116 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { useParams } from 'next/navigation';
+import FillUpCard from '@/components/FillUpCard';
+
+interface FillUp {
+  id: string;
+  mileage: number;
+  liters: number;
+  cost: number;
+  currency: string;
+  date: string;
+}
+
+const currencies = ['EUR', 'USD', 'RON', 'GBP'];
+
+export default function FillUpsPage() {
+  const { carId } = useParams();
+  const [fillups, setFillups] = useState<FillUp[]>([]);
+  const [form, setForm] = useState({
+    mileage: '',
+    liters: '',
+    cost: '',
+    currency: 'EUR',
+  });
+  const [error, setError] = useState('');
+
+  // Fetch fill-up entries
+  useEffect(() => {
+    fetch(`/api/fillups?carId=${carId}`)
+      .then((res) => res.json())
+      .then(setFillups);
+  }, [carId]);
+
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement | HTMLSelectElement>) => {
+    setForm({ ...form, [e.target.name]: e.target.value });
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    const res = await fetch('/api/fillups', {
+      method: 'POST',
+      body: JSON.stringify({ ...form, carId }),
+      headers: { 'Content-Type': 'application/json' },
+    });
+
+    if (res.ok) {
+      const newFill = await res.json();
+      setFillups((prev) => [newFill, ...prev]);
+      setForm({ mileage: '', liters: '', cost: '', currency: 'EUR' });
+      setError('');
+    } else {
+      const data = await res.json();
+      setError(data.message || 'Error adding fill-up');
+    }
+  };
+
+  return (
+    <main className="max-w-xl mx-auto p-6 space-y-6">
+      <h1 className="text-2xl font-bold">Fuel Fill-Ups</h1>
+
+      <form onSubmit={handleSubmit} className="space-y-4">
+        <input
+          name="mileage"
+          type="number"
+          placeholder="Odometer"
+          value={form.mileage}
+          onChange={handleChange}
+          required
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          name="liters"
+          type="number"
+          step="0.01"
+          placeholder="Liters"
+          value={form.liters}
+          onChange={handleChange}
+          required
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          name="cost"
+          type="number"
+          step="0.01"
+          placeholder="Total Cost"
+          value={form.cost}
+          onChange={handleChange}
+          required
+          className="w-full border px-3 py-2 rounded"
+        />
+        <select
+          name="currency"
+          value={form.currency}
+          onChange={handleChange}
+          className="w-full border px-3 py-2 rounded"
+        >
+          {currencies.map((c) => (
+            <option key={c} value={c}>{c}</option>
+          ))}
+        </select>
+        <button type="submit" className="w-full bg-green-600 text-white py-2 rounded">
+          ➕ Add Fill-Up
+        </button>
+        {error && <p className="text-red-500">{error}</p>}
+      </form>
+
+      <ul className="space-y-2">
+        {fillups.map((fill) => (
+          <FillUpCard key={fill.id} fill={fill} /> // ✅
+        ))}
+      </ul>
+    </main>
+  );
+}
@@ -0,0 +1,76 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+
+interface MileageEntry {
+  id: string;
+  mileage: number;
+  date: string;
+}
+
+export default function MileagePage() {
+  const { carId } = useParams();
+  const router = useRouter();
+
+  const [entries, setEntries] = useState<MileageEntry[]>([]);
+  const [mileage, setMileage] = useState('');
+  const [error, setError] = useState('');
+
+  // Fetch existing entries
+  useEffect(() => {
+    fetch(`/api/mileage?carId=${carId}`)
+      .then((res) => res.json())
+      .then((data) => setEntries(data));
+  }, [carId]);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const res = await fetch('/api/mileage', {
+      method: 'POST',
+      body: JSON.stringify({ carId, mileage }),
+      headers: { 'Content-Type': 'application/json' },
+    });
+
+    if (res.ok) {
+      const newEntry = await res.json();
+      setEntries((prev) => [newEntry, ...prev]);
+      setMileage('');
+    } else {
+      const data = await res.json();
+      setError(data.message || 'Error adding mileage');
+    }
+  };
+
+  return (
+    <main className="max-w-xl mx-auto p-6 space-y-6">
+      <h1 className="text-2xl font-bold">Mileage Log</h1>
+
+      <form onSubmit={handleSubmit} className="flex items-center gap-4">
+        <input
+          type="number"
+          value={mileage}
+          onChange={(e) => setMileage(e.target.value)}
+          placeholder="Odometer (e.g. 102300)"
+          className="flex-1 border px-3 py-2 rounded"
+          required
+        />
+        <button type="submit" className="bg-blue-600 text-white px-4 py-2 rounded">
+          ➕ Add
+        </button>
+      </form>
+
+      {error && <p className="text-red-500">{error}</p>}
+
+      <ul className="space-y-2">
+        {entries.map((entry) => (
+          <li key={entry.id} className="border rounded p-3">
+            <p className="font-medium">{entry.mileage} km</p>
+            <p className="text-sm text-gray-500">{new Date(entry.date).toLocaleString()}</p>
+          </li>
+        ))}
+      </ul>
+    </main>
+  );
+}
@@ -0,0 +1,58 @@
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+import { redirect } from 'next/navigation';
+import Link from 'next/link';
+
+interface CarDetailPageProps {
+  params: {
+    carId: string;
+  };
+}
+
+export default async function CarDetailPage({ params }: CarDetailPageProps) {
+  const session = await getSession();
+  if (!session) redirect('/auth/login');
+
+  const userEmail = session.user?.email!;
+  const car = await prisma.car.findFirst({
+    where: {
+      id: params.carId,
+      user: { email: userEmail },
+    },
+  });
+
+  if (!car) {
+    return <div className="p-6">Car not found or unauthorized access.</div>;
+  }
+
+  return (
+    <main className="max-w-3xl mx-auto p-6 space-y-4">
+      <h1 className="text-3xl font-bold">{car.name}</h1>
+      <p className="text-gray-700">{car.make} {car.model} ({car.year})</p>
+      <p className="text-gray-600">Fuel Type: {car.fuelType}</p>
+
+      <div className="flex gap-4 mt-6">
+        <Link
+          href={`/dashboard/cars/${car.id}/mileage`}
+          className="bg-blue-600 text-white px-4 py-2 rounded"
+        >
+          ➕ Add Mileage
+        </Link>
+
+        <Link
+          href={`/dashboard/cars/${car.id}/fillups`}
+          className="bg-green-600 text-white px-4 py-2 rounded"
+        >
+          ➕ Add Fill-Up
+        </Link>
+
+        <Link
+          href={`/dashboard/cars/${car.id}/stats`}
+          className="bg-purple-600 text-white px-4 py-2 rounded"
+        >
+          📊 View Stats
+        </Link>
+      </div>
+    </main>
+  );
+}
@@ -0,0 +1,64 @@
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+import { redirect } from 'next/navigation';
+import StatCard from '@/components/StatCard';
+
+interface StatsProps {
+  params: {
+    carId: string;
+  };
+}
+
+export default async function StatsPage({ params }: StatsProps) {
+  const session = await getSession();
+  if (!session) redirect('/auth/login');
+
+  const car = await prisma.car.findFirst({
+    where: {
+      id: params.carId,
+      user: { email: session.user?.email! },
+    },
+    include: {
+      fillUps: {
+        orderBy: { mileage: 'asc' },
+      },
+    },
+  });
+
+  if (!car) return <div className="p-6">Car not found or unauthorized.</div>;
+  const fillUps = car.fillUps;
+
+  if (fillUps.length < 2) {
+    return (
+      <main className="max-w-xl mx-auto p-6">
+        <h1 className="text-2xl font-bold mb-2">Not Enough Data</h1>
+        <p className="text-gray-600">Add at least 2 fill-ups to see statistics.</p>
+      </main>
+    );
+  }
+
+  // Compute stats
+  const first = fillUps[0];
+  const last = fillUps[fillUps.length - 1];
+
+  const totalDistance = last.mileage - first.mileage;
+  const totalLiters = fillUps.slice(1).reduce((sum, f) => sum + f.liters, 0); // ignore first fill
+  const totalCost = fillUps.slice(1).reduce((sum, f) => sum + f.cost, 0);
+
+  const avgConsumption = (totalLiters / totalDistance) * 100; // L/100km
+  const costPerKm = totalCost / totalDistance;
+
+  return (
+    <main className="max-w-xl mx-auto p-6 space-y-4">
+      <h1 className="text-2xl font-bold">Fuel Stats</h1>
+
+      <div className="space-y-2">
+        <StatCard label="Total Distance" value={`${totalDistance.toFixed(0)} km`} />
+        <StatCard label="Total Fuel Used" value={`${totalLiters.toFixed(2)} L`} />
+        <StatCard label="Total Fuel Cost" value={`${totalCost.toFixed(2)} ${fillUps[0].currency}`} />
+        <StatCard label="Average Consumption" value={`${avgConsumption.toFixed(2)} L / 100km`} />
+        <StatCard label="Average Cost / km" value={`${costPerKm.toFixed(2)} ${fillUps[0].currency}`} />
+      </div>
+    </main>
+  );
+}
@@ -0,0 +1,94 @@
+'use client';
+
+import { useState } from 'react';
+import { useRouter } from 'next/navigation';
+
+const fuelTypes = ['GASOLINE', 'DIESEL', 'LPG'];
+
+export default function AddCarPage() {
+  const router = useRouter();
+  const [form, setForm] = useState({
+    name: '',
+    make: '',
+    model: '',
+    year: '',
+    fuelType: 'GASOLINE',
+  });
+  const [error, setError] = useState('');
+
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement | HTMLSelectElement>) => {
+    setForm({ ...form, [e.target.name]: e.target.value });
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const res = await fetch('/api/cars', {
+      method: 'POST',
+      body: JSON.stringify(form),
+      headers: { 'Content-Type': 'application/json' },
+    });
+
+    if (res.ok) {
+      router.push('/dashboard');
+    } else {
+      const data = await res.json();
+      setError(data.message || 'Failed to add car');
+    }
+  };
+
+  return (
+    <main className="max-w-md mx-auto p-6 space-y-4">
+      <h1 className="text-2xl font-bold">Add New Car</h1>
+      <form onSubmit={handleSubmit} className="space-y-4">
+        <input
+          name="name"
+          value={form.name}
+          onChange={handleChange}
+          required
+          placeholder="Car Name"
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          name="make"
+          value={form.make}
+          onChange={handleChange}
+          required
+          placeholder="Make (e.g. BMW)"
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          name="model"
+          value={form.model}
+          onChange={handleChange}
+          required
+          placeholder="Model (e.g. 320i)"
+          className="w-full border px-3 py-2 rounded"
+        />
+        <input
+          name="year"
+          type="number"
+          value={form.year}
+          onChange={handleChange}
+          required
+          placeholder="Year"
+          className="w-full border px-3 py-2 rounded"
+        />
+        <select
+          name="fuelType"
+          value={form.fuelType}
+          onChange={handleChange}
+          className="w-full border px-3 py-2 rounded"
+        >
+          {fuelTypes.map((type) => (
+            <option key={type} value={type}>{type}</option>
+          ))}
+        </select>
+        <button type="submit" className="w-full bg-blue-600 text-white py-2 rounded">
+          Save Car
+        </button>
+        {error && <p className="text-red-500">{error}</p>}
+      </form>
+    </main>
+  );
+}
@@ -0,0 +1,37 @@
+import { getSession } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+import Link from 'next/link';
+import { redirect } from 'next/navigation';
+import CarCard from '@/components/CarCard';
+
+export default async function DashboardPage() {
+  const session = await getSession();
+  if (!session) redirect('/auth/login');
+
+  const userEmail = session.user.email!;
+  const user = await prisma.user.findUnique({
+    where: { email: userEmail },
+    include: { cars: true },
+  });
+
+  return (
+    <main className="max-w-4xl mx-auto p-6 space-y-6">
+      <div className="flex justify-between items-center">
+        <h1 className="text-2xl font-bold">Your Cars</h1>
+        <Link href="/dashboard/cars/new" className="bg-blue-600 text-white px-4 py-2 rounded">
+          + Add Car
+        </Link>
+      </div>
+
+      {user?.cars.length ? (
+        <ul className="grid gap-4">
+          {user.cars.map((car) => (
+            <CarCard key={car.id} car={car} />
+          ))}
+        </ul>
+      ) : (
+        <p>No cars added yet.</p>
+      )}
+    </main>
+  );
+}
@@ -0,0 +1,14 @@
+import Link from 'next/link';
+import { Car } from '@prisma/client';
+
+export default function CarCard({ car }: { car: Car }) {
+  return (
+    <Link href={`/dashboard/cars/${car.id}`}>
+      <div className="border rounded-xl p-4 shadow-sm hover:shadow-md transition bg-gray-50">
+        <h2 className="text-xl font-bold text-black">{car.name}</h2>
+        <p className="text-gray-600">{car.make} {car.model} ({car.year})</p>
+        <p className="text-sm text-gray-500 mt-1">Fuel Type: {car.fuelType}</p>
+      </div>
+    </Link>
+  );
+}
@@ -0,0 +1,12 @@
+import { FillUp } from '@prisma/client';
+
+export default function FillUpCard({ fill }: { fill: FillUp }) {
+  return (
+    <div className="border rounded p-3 bg-white shadow-sm">
+      <div className="font-semibold text-black">{fill.mileage} km - {fill.liters} L</div>
+      <div className="text-sm text-gray-500">
+        {fill.cost} {fill.currency} — {new Date(fill.date).toLocaleString()}
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,7 @@
+export default function Layout({ children }: { children: React.ReactNode }) {
+  return (
+    <div className="min-h-screen bg-gray-50 text-gray-900">
+      <main className="max-w-4xl mx-auto p-6">{children}</main>
+    </div>
+  );
+}
@@ -0,0 +1,8 @@
+export default function StatCard({ label, value }: { label: string; value: string }) {
+  return (
+    <div className="border rounded-xl p-4 shadow-sm bg-white">
+      <p className="text-sm text-gray-500">{label}</p>
+      <p className="text-2xl font-semibold">{value}</p>
+    </div>
+  );
+}
@@ -0,0 +1,6 @@
+import { getServerSession } from 'next-auth';
+import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+
+export function getSession() {
+  return getServerSession(authOptions);
+}
@@ -0,0 +1,9 @@
+import { PrismaClient } from '@prisma/client';
+
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClient | undefined;
+};
+
+export const prisma = globalForPrisma.prisma ?? new PrismaClient();
+
+if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma;