<?php

namespace App\Http\Controllers\Api\v1;

use App\Http\Controllers\Controller;
use App\Http\Resources\CustomerResource;
use App\Http\Resources\StatusResource;
use App\Models\Customer;
use App\Models\CustomerInfos;
use App\Models\CustomerLogin;
use App\Models\CustomerOptInHistory;
use App\Models\SingleOptin;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Str;

class CustomerController extends Controller
{
    // TODO : Voir pour les contraintes de mot de passe

    /**
     * Store a newly created resource in storage
     * @param Request $request
     * @return CustomerResource|StatusResource
     */
    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'email' => 'required|email',
            'password' => 'required',
            'firstname' => 'required',
            'lastname' => 'required',
            'opt_in' => 'required',
            'birth_date' => 'date_format:Y-m-d'
        ]);

        if ($validator->fails())
            return new StatusResource(['status' => 'KO', 'code' => 102, 'message' => 'Error on required fields.', 'errors' => $validator->errors()]);

        $brandId = $request->brand_id;
        $email = filter_var($request->email, FILTER_SANITIZE_EMAIL);
        $firstname = filter_var($request->firstname, FILTER_SANITIZE_STRING);
        $lastname = filter_var($request->lastname, FILTER_SANITIZE_STRING);
        $optIn = filter_var($request->opt_in, FILTER_SANITIZE_STRING);
        $hashcode = Str::uuid();

        // Récupère le customer s'il existe déjà
        $customer = Customer::where('email', $email)->first();

        // Si le customer n'existe pas déjà
        if (!$customer) {
            $customer = new Customer();
            $customer->email = $email;
            $customer->save();
            $singleOptin = SingleOptin::where([['email', $email], ['brand_id', $brandId]])->first();
            if ($singleOptin)
                $singleOptin->delete();
        } else {
            // Récupère les infos s'ils existent déjà
            $customerInfos = CustomerInfos::where([['customer_id', $customer->id], ['brand_id', $brandId]])->first();
            if ($customerInfos)
                return new StatusResource(['status' => 'KO', 'code' => 103, 'message' => 'User already registered on this site.']);
        }

        $customerInfos = new CustomerInfos();
        $customerInfos->firstname = $firstname;
        $customerInfos->lastname = $lastname;
        $customerInfos->birth_date = !empty($request->birth_date) ? filter_var($request->birth_date, FILTER_SANITIZE_STRING) : null;
        $customerInfos->address = !empty($request->address) ? filter_var($request->address, FILTER_SANITIZE_STRING) : null;
        $customerInfos->address2 = !empty($request->address2) ? filter_var($request->address2, FILTER_SANITIZE_STRING) : null;
        $customerInfos->phone = !empty($request->phone) ? filter_var($request->phone, FILTER_SANITIZE_STRING) : null;
        $customerInfos->country = !empty($request->country) ? filter_var($request->country, FILTER_SANITIZE_STRING) : null;
        $customerInfos->city = !empty($request->city) ? filter_var($request->city, FILTER_SANITIZE_STRING) : null;
        $customerInfos->postcode = !empty($request->postcode) ? filter_var($request->postcode, FILTER_SANITIZE_STRING) : null;
        $customerInfos->opt_in = $optIn;
        $customerInfos->hashcode = $hashcode;
        $customerInfos->brand_id = $brandId;
        $customerInfos->customer_id = $customer->id;

        $customer->infos()->save($customerInfos);

        // Création du login pour cet utilisateur sur ce service
        $customerLogin = new CustomerLogin();
        $customerLogin->customer_id = $customer->id;
        $customerLogin->password = Hash::make(trim($request->password));
        $customerLogin->last_connection = now();
        $customerLogin->brand_id = $brandId;
        $customerLogin->status = 0;
        // Par défaut à 0 pour activation par mail
        //$customerLogin->status = $request->status !== null ? 1 : 0;

        $customer->logins()->save($customerLogin);

        // Ajout dans la table d'historique des opt-in de la nouvelle valeur
        $optInHistory = new CustomerOptInHistory();
        $optInHistory->customer_id = $customer->id;
        $optInHistory->brand_id = $brandId;
        $optInHistory->new_value = $optIn;
        $optInHistory->save();

        return new CustomerResource($customer, $brandId);
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return CustomerResource | StatusResource
     */
    public function show(Request $request, $id)
    {
        $brandId = $request->brand_id;
        $customer = Customer::find($id);
        if (!$customer)
            return new StatusResource(['status' => 'KO', 'code' => 101, 'message' => 'User not found.']);
        return new CustomerResource($customer, $brandId);
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return CustomerResource|StatusResource
     */
    public function update(Request $request, $id)
    {
        $validator = Validator::make($request->all(), [
            'firstname' => 'required',
            'lastname' => 'required',
            'opt_in' => 'required',
            'birth_date' => 'date_format:Y-m-d'
        ]);

        if ($validator->fails())
            return new StatusResource(['status' => 'KO', 'code' => 104, 'message' => 'Error on required fields.', 'errors' => $validator->errors()]);

        $brandId = $request->brand_id;
        $customer = Customer::find($id);

        if (!$customer)
            return new StatusResource(['status' => 'KO', 'code' => 105, 'message' => 'User not found.']);

        $firstname = filter_var($request->firstname, FILTER_SANITIZE_STRING);
        $lastname = filter_var($request->lastname, FILTER_SANITIZE_STRING);
        $optIn = filter_var($request->opt_in, FILTER_SANITIZE_STRING);

        $customerInfos = $customer->infos()->where('brand_id', $brandId)->first();

        $customerInfos->firstname = $firstname;
        $customerInfos->lastname = $lastname;
        $customerInfos->birth_date = !empty($request->birth_date) ? filter_var($request->birth_date, FILTER_SANITIZE_STRING) : null;
        $customerInfos->address = !empty($request->address) ? filter_var($request->address, FILTER_SANITIZE_STRING) : null;
        $customerInfos->address2 = !empty($request->address2) ? filter_var($request->address2, FILTER_SANITIZE_STRING) : null;
        $customerInfos->phone = !empty($request->phone) ? filter_var($request->phone, FILTER_SANITIZE_STRING) : null;
        $customerInfos->country = !empty($request->country) ? filter_var($request->country, FILTER_SANITIZE_STRING) : null;
        $customerInfos->city = !empty($request->city) ? filter_var($request->city, FILTER_SANITIZE_STRING) : null;
        $customerInfos->postcode = !empty($request->postcode) ? filter_var($request->postcode, FILTER_SANITIZE_STRING) : null;

        if ($customerInfos->opt_in != $optIn) {
            // Ajout dans la table d'historique des opt-in de la nouvelle valeur
            $optInHistory = new CustomerOptInHistory();
            $optInHistory->customer_id = $customer->id;
            $optInHistory->brand_id = $brandId;
            $optInHistory->new_value = $optIn;
            $optInHistory->save();
        }

        $customerInfos->opt_in = $optIn;
        $customerInfos->brand_id = 1;

        $customerInfos->save();

        return new CustomerResource($customer, $brandId);
    }

    /**
     * Authenticate the user
     * @param Request $request
     * @return CustomerResource|StatusResource
     */
    public function authenticate(Request $request) {
        $validator = Validator::make($request->all(), [
            'email' => 'required|email',
            'password' => 'required',
        ]);

        if ($validator->fails())
            return new StatusResource(['status' => 'KO', 'code' => 115, 'message' => 'Error on required fields.', 'errors' => $validator->errors()]);

        $brandId = $request->brand_id;
        $email = filter_var($request->email, FILTER_SANITIZE_EMAIL);
        $password = trim($request->password);
        $customer = Customer::where('email', $email)->first();
        if ($customer) {
            $login = $customer->logins()->where('brand_id', $brandId)->first();
            if ($login) {
                if ($login->status === 0) {
                    // "Le compte de l'utilisateur n'est pas activé"
                    return new StatusResource(['status' => 'KO', 'code' => 116, 'message' => 'Account not activated.']);
                } else {
                    if (Hash::check($password, $login->password)) {
                        $login->last_connection = now();
                        $customer->logins()->save($login);
                        return new CustomerResource($customer, $brandId);
                    }
                    // "Mot de passe incorrect"
                    return new StatusResource(['status' => 'KO', 'code' => 117, 'message' => 'Authentication failed.']);
                }
            } else {
                // "Ce compte n'est pas enregistré pour cette marque"
                return new StatusResource(['status' => 'KO', 'code' => 118, 'message' => 'User not found.']);
            }
        } else {
            // "Ce compte n'existe pas dans la CRM"
            return new StatusResource(['status' => 'KO', 'code' => 119, 'message' => 'User not found.']);
        }
    }

    /**
     * Change the password of the user for the brand
     * @param Request $request
     * @param $id
     */
    public function changePassword(Request $request, $id) {
        $validator = Validator::make($request->all(), [
            'password' => 'required',
        ]);

        if ($validator->fails())
            return new StatusResource(['status' => 'KO', 'code' => 107, 'message' => 'Error on required fields.', 'errors' => $validator->errors()]);

        $brandId = $request->brand_id;
        $customer = Customer::find($id);
        $password = trim($request->password);

        if ($customer) {
            $customerLogin = $customer->logins()->where('brand_id', $brandId)->first();
            if ($customerLogin) {
                $customerLogin->password = Hash::make($password);
                $customerLogin->save();
            } else {
                // "Ce compte n'est pas enregistré pour cette marque"
                return new StatusResource(['status' => 'KO', 'code' => 108, 'message' => 'User not found.']);
            }
        } else {
            // "Ce compte n'existe pas"
            return new StatusResource(['status' => 'KO', 'code' => 109, 'message' => 'User not found.']);
        }
        return new StatusResource(['status' => 'OK', 'message' => 'Update complete.']);
    }

    /**
     * Activate the account of the user
     * @param Request $request
     * @param $id
     */
    public function activateAccount(Request $request, $id) {
        $brandId = $request->brand_id;

        $customer = Customer::find($id);
        if ($customer) {
            $login = $customer->logins()->where('brand_id', $brandId)->first();
            if ($login) {
                if ($login->status === 0) {
                    $login->status = 1;
                    $login->save();
                    // "Le compte a bien été activé"
                    return new StatusResource(['status' => 'OK', 'message' => 'Update complete.']);
                } else {
                    // "Ce compte est déjà activé"
                    return new StatusResource(['status' => 'KO', 'code' => 110, 'message' => 'User already active.']);
                }
            } else {
                // "Ce compte n'est pas enregistré pour cette marque"
                return new StatusResource(['status' => 'KO', 'code' => 111, 'message' => 'User not found.']);
            }
        } else {
            // "Cet utilisateur n'existe pas dans la CRM"
            return new StatusResource(['status' => 'KO', 'code' => 112, 'message' => 'User not found.']);
        }
    }

    /**
     * Delete the user account for the brand
     * @param Request $request
     * @param $id
     */
    public function delete(Request $request, $id) {
        die("Not implemented yet");
        // TODO : A voir pour les stats, obuton dans le bo qui permet de faire les stats sur les customer puis supprimer
        // TODO : Gestion avec mesBR
        $brandId = $request->brand_id;

        $customer = Customer::find($id);
        if ($customer) {
            $customer->infos()->where('brand_id', $brandId)->first()->delete();
            $customer->logins()->where('brand_id', $brandId)->first()->delete();

            if (count($customer->infos) === 0 && count($customer->logins) === 0) {
                $customer->optInHistory()->delete();
                $customer->delete();
                // Suppression du compte de la CRM terminée
                return new StatusResource(['status' => 'OK', 'message' => 'Deletion complete.']);
            } else {
                // Suppression des informations du compte pour la marque terminée
                return new StatusResource(['status' => 'OK', 'message' => 'Deletion complete.']);
            }
        } else {
            return new StatusResource(['status' => 'KO', 'code' => 106, 'message' => 'User not found.']);
        }
    }

    /**
     * Change the status of the opt-in for the customer on this brand
     * @param Request $request
     * @param $id
     */
    public function toggleOptin(Request $request, $id) {
        // TODO : Liaison des opt-in avec MailJet
        $brandId = $request->brand_id;

        $customer = Customer::find($id);
        if ($customer) {
            $infos = $customer->infos()->where('brand_id', $brandId)->first();
            if ($infos) {
                $infos->opt_in = $infos->opt_in === 0 ? 1 : 0;

                // On enregistre l'historique du changement d'optin
                $optinHistory = new CustomerOptInHistory();
                $optinHistory->customer_id = $customer->id;
                $optinHistory->new_value = $infos->opt_in;
                $optinHistory->brand_id = $brandId;
                $optinHistory->save();

                $infos->save();
                // "Changement effectué"
                return new StatusResource(['status' => 'OK', 'message' => 'Update complete.']);
            } else {
                // "Ce compte n'a pas d'information liés à cette marque"
                return new StatusResource(['status' => 'KO', 'code' => 113, 'message' => 'User not found.']);
            }
        } else {
            // "Cet utilisateur n'existe pas dans la CRM"
            return new StatusResource(['status' => 'KO', 'code' => 114, 'message' => 'User not found.']);
        }
    }

    public function addSingleOptin(Request $request) {
        $validator = Validator::make($request->all(), [
            'email' => 'required|email',
        ]);

        if ($validator->fails())
            return new StatusResource(['status' => 'KO', 'code' => 120, 'message' => 'Error on required fields.', 'errors' => $validator->errors()]);

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

        // Check si le customer ou l'optin simple existe avant de l'ajouter en optin simple
        if (!SingleOptin::where([['email', $email], ['brand_id', $brandId]])->exists() &&
            !CustomerInfos::join("customers", "customer_infos.customer_id", "=", "customers.id")->where([['brand_id', $brandId], ['email', $email]])->exists()) {
            $singleOptin = new SingleOptin();
            $singleOptin->email = $email;
            $singleOptin->brand_id = $brandId;
            $singleOptin->save();
        } else {
            // "Cet utilisateur est déjà inscrit à la newsletter pour cette marque"
            return new StatusResource(['status' => 'KO', 'code' => 121, 'message' => 'This user is already subscribed to the newsletter for this brand.']);
        }
        return new StatusResource(['status' => 'OK' , 'message' => 'Optin added.']);
    }
}