ldc-crm/app/Http/Controllers/CustomerController.php

<?php

namespace App\Http\Controllers;

use App\Models\Brand;
use App\Models\Customer;
use App\Models\CustomerInfo;
use App\Models\CustomerLogin;

class CustomerController extends Controller
{
    public function index()
    {
        $brands = Brand::select('id', 'name')->get();
        $query  = CustomerInfo::with(['customer']);
        if (request()->brand) {
            $query = $query->where('brand_id', request()->brand);
        }
        $customers  = $query->paginate();
        $modelTable = (new Customer())->getTable();
        $modelClass = Customer::class;

        // use a crud controller (any) to gather crudModels
        $modelsClasses = (new BrandController())->getCrudModels();
        return view('customer.index', compact(
            'modelsClasses',
            'modelClass',
            'modelTable',
            'customers',
            'brands'
        ));
    }

    public function show(Customer $customer, Brand $brand)
    {
        $customerInfos = CustomerInfo::where('customer_id', $customer->id)
            ->where('brand_id', $brand->id)->firstOrFail();
        $customerLogin = CustomerLogin::where('customer_id', $customer->id)
            ->where('brand_id', $brand->id)->first();

        // use a crud controller (any) to gather crudModels
        $modelsClasses = (new BrandController())->getCrudModels();
        return view('customer.show', compact(
            'modelsClasses',
            'customerInfos',
            'customerLogin'
        ));
    }

    public function filter($texte, Brand $brand = null)
    {
        if ($brand) {
            $customers = Customer::join('customer_infos', 'customers.id', '=', 'customer_infos.customer_id')
                ->join('customer_logins', 'customers.id', '=', 'customer_logins.customer_id')->select(
                    'customer_infos.customer_id',
                    'customer_infos.firstname',
                    'customer_infos.lastname',
                    'customer_infos.opt_in',
                    'customers.email',
                    'customer_infos.brand_id',
                    'customer_logins.last_connection'
                )->where([
                    ['lastname', 'like', '%' . $texte . '%'],
                ['customer_infos.brand_id', $brand->id],
                ['customer_logins.brand_id', $brand->id]
                ])->orWhere([
                    ['email', 'like', '%' . $texte . '%'],
                ['customer_infos.brand_id', $brand->id],
                ['customer_logins.brand_id', $brand->id]
                ])->get();
        } else {
            $customers = CustomerInfo::join('customers', 'customers.id', '=', 'customer_infos.customer_id')
                ->join('customer_logins', function ($join) {
                    $join->on('customer_logins.customer_id', '=', 'customer_infos.customer_id');
                    $join->on('customer_logins.brand_id', '=', 'customer_infos.brand_id');
                })->select(
                    'customer_infos.customer_id',
                    'customer_infos.firstname',
                    'customer_infos.lastname',
                    'customer_infos.opt_in',
                    'customers.email',
                    'customer_infos.brand_id',
                    'customer_logins.last_connection'
                )->where('lastname', 'like', '%' . $texte . '%')
                ->orWhere('email', 'like', '%' . $texte . '%')->get();
        }

        return response()->json($customers);
    }

    public function delete(Customer $customer, Brand $brand)
    {
        $nbBrand = $customer->infos()->count();

        $customer->infos()->where('brand_id', $brand->id)->delete();
        $customer->logins()->where('brand_id', $brand->id)->delete();
        $customer->optInHistory()->where('brand_id', $brand->id)->delete();

        if ($nbBrand === 1) {
            $customer->delete();
        }

        return redirect()->route('customers.index')->with('success', "Compte supprimé.");
    }
}