<?php

namespace App\Http\Controllers;

use App\Mail\PasswordResetMail;
use App\Mail\RegisterConfirmMail;
use App\Models\Customers;
use App\Models\PasswordReset;
use App\Models\Products;
use App\Models\Recipes;
use Carbon\Carbon;
use Exception;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Str;

class CustomerController extends Controller
{
    /**
     * Affiche la page d'inscription
     */
    public function registerForm() {
        if (Auth::guard('customer')->check()) {
            return redirect()->route('home');
        }
        return view('front.auth.register');
    }

    // TODO : Opt In et Suppression à faire et tester
    /**
     * Enregistre le customer dans la base de données
     */
    public function register(Request $request) {
        $request->validate([
            'email' => 'required|email|max:255',
            'username' => 'required|string|max:255|unique:customers,username',
            'firstname' => 'required|string|max:255',
            'lastname' => 'required|string|max:255',
            'day' => 'required|alpha_num|gt:0|lt:32',
            'month' => 'required|alpha_num|gt:0|lt:13',
            'year' => 'required|alpha_num|gt:' . (date('Y') - 101) . '|lt:' . (date('Y') + 1),
            'address' => 'max:255',
            'phone' => 'max:255',
            'city' => 'required|string|max:255',
            'postcode' => 'required',
            'password' => 'required|confirmed|min:8|max:255',
        ]);

        $email = filter_var($request->email, FILTER_SANITIZE_EMAIL);
        $username = filter_var($request->username, FILTER_SANITIZE_STRING);
        $firstname = filter_var($request->firstname, FILTER_SANITIZE_STRING);
        $lastname = filter_var($request->lastname, FILTER_SANITIZE_STRING);
        $day = filter_var($request->day, FILTER_SANITIZE_NUMBER_INT);
        $month = filter_var($request->month, FILTER_SANITIZE_NUMBER_INT);
        $year = filter_var($request->year, FILTER_SANITIZE_NUMBER_INT);
        $birthDate = Carbon::createFromDate($year, $month, $day);
        if ($birthDate->timestamp > Carbon::now()->subYears(18)->timestamp) {
            return back()->withInput()->withErrors(__("Vous devez avoir plus de 18 ans pour pouvoir vous inscrire."));
        }
        if ($birthDate->format('dmY') !== $day . $month . $year) {
            return back()->withInput()->withErrors(__("Veuillez entrer une date de naissance valide"));
        }
        if ($request->address !== null) {
            $address = filter_var($request->address, FILTER_SANITIZE_STRING);
        }
        if ($request->phone !== null) {
            $phone = filter_var($request->phone, FILTER_SANITIZE_STRING);
        }
        $city = filter_var($request->city, FILTER_SANITIZE_STRING);
        $postcode = filter_var($request->postcode, FILTER_SANITIZE_STRING);
        $password = $request->password;
        $optin = $request->optin !== null ? 1 : 0;

        /** @var \LDCCRM\ApiV1 */
        $crm = app('crmApi');
        $crmCustomer = $crm->createCustomer($email, $password, $firstname, $lastname, $optin, $birthDate->format('Y-m-d'), isset($phone) ? $phone : null, isset($address) ? $address : null, null, $city, $postcode, null);

        if ($crmCustomer->status === "OK") {
            $customer = new Customers();
            $customer->crm_id = $crmCustomer->user->crm_id;
            $customer->hashcode = $crmCustomer->user->hashcode;
            $customer->email = $email;
            $customer->username = $username;
            $customer->save();

            Mail::to($email)->send(new RegisterConfirmMail($customer, $firstname));

            return view('front.auth.confirm-register');
        } else {
            switch ($crmCustomer->code) {
                case 102:
                    return back()->withInput()->withErrors("Les champs obligatoires n'ont pas été correctement remplis.");
                case 103:
                    return back()->withInput()->withErrors("Un compte est déjà associé à cette adresse email.");
                default:
                    return back()->withInput()->withErrors("Une erreur est survenue lors de l'inscription, merci de réessayer plus tard.");
            }
        }
    }

    /**
     * Retourne la page de connexion
     */
    public function authenticateForm() {
        if (Auth::guard('customer')->check()) {
            return redirect()->route('home');
        }
        return view('front.auth.login');
    }

    /**
     * Gère l'authentification des customers
     */
    public function authenticate(Request $request) {
        $request->validate([
            'email' => 'required|email',
            'password' => 'required',
        ]);

        $email = filter_var($request->email, FILTER_SANITIZE_EMAIL);
        $password = $request->password;
        $remember = $request->remember !== null ? true : false;

        /** @var Customers */
        $customer = Customers::where('email', $email)->first();
        if ($customer) {
            /** @var \LDCCRM\ApiV1 */
            $crm = app('crmApi');
            $result = $crm->loginCustomer($email, $password);
            if ($result->status === "OK") {
                /** @var \Illuminate\Auth\SessionGuard */
                $guard = Auth::guard('customer');
                $guard->login($customer, $remember);
                return redirect()->route('club.index');
            } else {
                switch ($result->code) {
                    case 115:
                        return back()->withErrors("Veuillez vérifier que vous avez correctement rempli les champs obligatoires.");
                    case 116:
                        Mail::to($email)->send(new RegisterConfirmMail($customer, null));
                        return back()->withErrors("Votre compte n'est pas activé, vérifier dans vos emails pour y trouver le mail de confirmation. Un lien d'activation vous a été renvoyer.");
                    case 117 || 118 || 119:
                        return back()->withErrors("Email ou mot de passe incorrect.");
                    default:
                        return back()->withErrors("Une erreur est survenue, merci de réessayer ultérieurement.");
                }
            }
        } else {
            return back()->withErrors("Email ou mot de passe incorrect.");
        }
    }

    /**
     * Active le compte d'un customer
     */
    public function activate($hashcode) {
        $hashcode = filter_var($hashcode, FILTER_SANITIZE_STRING);
        $customer = Customers::select('crm_id')->where('hashcode', $hashcode)->first();
        if ($customer) {
            /** @var \LDCCRM\ApiV1 */
            $crm = app('crmApi');
            $result = $crm->activateCustomer($customer->crm_id);
            if ($result->status === "OK") {
                return view('front.auth.activate')->with('message', 'Votre compte a bien été activé, vous pouvez désormais vous connecter.');
            } else {
                return view('front.auth.activate')->with('message', "Ce lien d'activation n'est pas valide.");
            }
        } else {
            return view('front.auth.activate')->with('message', "Ce lien d'activation n'est pas valide.");
        }
    }

    public function logout() {
        if (Auth::guard('customer')->check()) {
            Auth::guard('customer')->logout();
            return redirect()->route('home');
        }
    }

    public function update(Request $request) {
        // TODO : A tester avec pages Mes Informations
        $request->validate([
            'username' => 'required|string|max:255|unique:customers,username',
            'firstname' => 'required|string|max:255',
            'lastname' => 'required|string|max:255',
            'birth_date' => 'required',
            'address' => 'string|max:255',
            'phone' => 'max:255',
            'country' => 'required|string|max:255',
            'city' => 'required|string|max:255',
            'postcode' => 'required',
        ]);

        $username = filter_var($request->username, FILTER_SANITIZE_STRING);
        $firstname = filter_var($request->firstname, FILTER_SANITIZE_STRING);
        $lastname = filter_var($request->lastname, FILTER_SANITIZE_STRING);
        $birthDate = $request->birth_date;
        if ($request->address !== null)
            $address = filter_var($request->address, FILTER_SANITIZE_STRING);
        if ($request->phone !== null)
            $phone = filter_var($request->phone, FILTER_SANITIZE_STRING);
        $country = filter_var($request->country,FILTER_SANITIZE_STRING);
        $city = filter_var($request->city, FILTER_SANITIZE_STRING);
        $postcode = filter_var($request->postcode, FILTER_SANITIZE_STRING);
        $optin = $request->optin !== null ? 1 : 0;

        $customer = Customers::where('email', Auth::guard('customer')->user()->email)->first();

        if (!$customer) {
            return back()->withErrors("Une erreur est survenue, merci de réessayer.");
        }

        /** @var \LDCCRM\ApiV1 */
        $crm = app('crmApi');
        $result = $crm->updateCustomer($customer->crm_id, $firstname, $lastname, $optin, $birthDate, $phone, $address, null, $city, $postcode, $country);

        if ($result->status === "OK") {
            $customer->username = $username;
            $customer->save();
            return back()->with('success', 'Modifications enregistrés !');
        } else {
            // TODO : Retour correct
            switch ($result->code) {
                case 104:
                    dd("KO 104");
                    return back()->withErrors("Veuillez vérifier que vous avez correctement rempli les champs obligatoires.");
                case 105:
                    dd("KO 105");
                    return back()->withErrors("Une erreur est survenue, merci de réessayer.");
                default:
                    dd("KO default");
                    return back()->withErrors("Une erreur est survenue, merci de réessayer ultérieurement.");
            }
        }
    }

    public function passwordReset(Request $request) {
        $request->validate([
            'email' => 'required|email|max:255',
        ]);

        $email = filter_var($request->email, FILTER_SANITIZE_EMAIL);

        $customerExist = Customers::where('email', $email)->count() === 0 ? false : true;

        // TODO : Enlever les dd de test
        if ($customerExist) {
            $token = Str::random(80);

            $passwordReset = new PasswordReset();
            $passwordReset->email = $email;
            $passwordReset->token = $token;
            $passwordReset->created_at = now();
            $passwordReset->save();

            Mail::to($email)->send(new PasswordResetMail($token));

            dd("OK");
            return back()->with('success', 'Un email de réinitialisation a bien été envoyé sur votre adresse email.');
        } else {

            dd("KO");
            return back()->withErrors("Cette adresse email n'est pas enregistrée dans nos services.");
        }
    }

    public function changePassword(Request $request, $token) {
        // TODO : Faire la méthode qui appel la vue qui redirige ici une fois les infos rentrée
        $request->validate([
            'password' => 'required|confirmed|min:8|max:255'
        ]);

        $password = $request->password;

        try {
            $passwordReset = PasswordReset::where('token', $token)->first();
            $crmId = Customers::where('email', $passwordReset->email)->first()->crm_id;
        } catch (Exception $e) {
            dd("KO pas de données");
            return back()->withErrors("Changement du mot de passe impossible, les données envoyés sont incorrectes.");
        }
        /** @var \LDCCRM\ApiV1 */
        $crm = app('crmApi');
        $result = $crm->changePwdCustomer($crmId, $password);
        // TODO : Retourner les bonnes vues au lieu des dd
        if ($result->status === "OK") {
            $passwordReset->delete();
            dd("OK !");
        } else {
            switch ($result->code) {
                case 107:
                    dd("KO 107");
                    return back()->withErrors("Veuillez vérifier que vous avez correctement rempli les champs obligatoires.");
                case 108 || 109:
                    dd("KO 108 ou 109");
                    return back()->withErrors("Changement impossible, compte inexistant.");
                default:
                    dd("KO default");
                    return back()->withErrors("Une erreur est survenue, merci de réessayer ultérieurement.");
            }
        }
    }

    public function changeOptin() {
        // TODO : Récupération de l'utilisateur par le système d'Auth et tester la méthode, enlever les dd
        die("Attente");
        $crmId = Auth::guard('customer')->user()->crm_id;

        /** @var \LDCCRM\ApiV1 */
        $crm = app('crmApi');
        $result = $crm->toggleOptInCustomer($crmId);
        if ($result->status === "OK") {
            dd("OK");
            return back()->with('success', 'Modification enregistrée !');
        } else {
            switch ($result->code) {
                case 113 || 114:
                    dd("KO 113 ou 114");
                    return back()->withErrors("Mise à jour impossible, compte inexistant.");
                default:
                    dd("KO default");
                    return back()->withErrors("Une erreur est survenue, merci de réessayer ultérieurement.");
            }
        }
    }

    public function addFavoriteRecipe($recipeId) {
        $recipe = Recipes::findOrFail($recipeId);
        $customer = Customers::findOrFail(Auth::guard('customer')->user()->id);
        $customer->recipes()->attach($recipe);

        return back()->with('success', 'Recette ajoutée à vos recettes favorites.');
    }

    public function removeFavoriteRecipe(Request $request) {
        $recipe = Recipes::findOrFail($request->id);
        $customer = Auth::guard('customer')->user();
        $customer->recipes()->detach($recipe);;
    }

    public function addToCart($productId) {
        $product = Products::findOrFail($productId);
        $customer = Customers::findOrFail(Auth::guard('customer')->user()->id);
        $customer->products()->attach($product);
    }

    public function removeFromCart(Request $request) {
        $product = Products::findOrFail($request->id);
        $customer = Auth::guard('customer')->user();
        $customer->products()->detach($product);
    }

    public function delete($id) {
        die('Not implemented yet');
        // Suppression d'un compte client
        $customer = Customers::findOrFail($id);
        $customer->recipes()->delete();
        $customer->products()->delete();
        $customer->answers()->delete();
        $customer->forums()->delete();

        // TODO : Suppression via la CRM

        if (Auth::guard('customer')->user()->id === $customer->id)
            Auth::guard('customer')->logout();
        $customer->delete();

        return redirect()->route('home');
    }
}