finance_app/app/Http/Controllers/ExpenseController.php

<?php

namespace App\Http\Controllers;

use App\Models\Category;
use App\Models\CategoryRule;
use App\Models\Expense;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Http\Request;
use Inertia\Inertia;

class ExpenseController extends Controller
{
    use AuthorizesRequests;
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        $expenses = Expense::with('category')
            ->where('user_id', auth()->id())
            ->orderBy('date', 'desc')
            ->get();

        $categories = Category::where('user_id', auth()->id())->get();

        $rules = CategoryRule::with('category')
            ->where('user_id', auth()->id())
            ->get();

        return Inertia::render('Expenses/Index', [
            'expenses'   => $expenses,
            'categories' => $categories,
            'rules'      => $rules,
        ]);
    }


    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'amount'      => 'required|numeric|min:0',
            'category_id' => 'nullable|exists:categories,id',
            'note'        => 'nullable|string|max:255',
            'date'        => 'required|date',
        ]);

        Expense::create([
            ...$validated,
            'user_id' => auth()->id(),
        ]);

        return redirect()->back();
    }

    /**
     * Display the specified resource.
     */
    public function show(Expense $expense)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Expense $expense)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Expense $expense)
    {
        $this->authorize('update', $expense);

        $validated = $request->validate([
            'amount'      => 'required|numeric|min:0',
            'category_id' => 'nullable|exists:categories,id',
            'note'        => 'nullable|string|max:255',
            'date'        => 'required|date',
        ]);

        $expense->update($validated);

        return redirect()->back();
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Expense $expense)
    {
        $this->authorize('delete', $expense);
        $expense->delete();
        return redirect()->back();
    }

    public function destroyBatch(Request $request)
    {
        $request->validate(['ids' => 'required|array']);

        Expense::whereIn('id', $request->ids)
            ->where('user_id', auth()->id())
            ->delete();

        return redirect()->back();
    }
}