<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2022. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Http\Livewire;

use App\DataMapper\ClientSettings;
use App\Factory\ClientFactory;
use App\Jobs\Mail\NinjaMailerJob;
use App\Jobs\Mail\NinjaMailerObject;
use App\Jobs\Subscription\CleanStaleInvoiceOrder;
use App\Libraries\MultiDB;
use App\Mail\ContactPasswordlessLogin;
use App\Mail\Subscription\OtpCode;
use App\Models\Client;
use App\Models\ClientContact;
use App\Models\Invoice;
use App\Models\RecurringInvoice;
use App\Models\Subscription;
use App\Repositories\ClientContactRepository;
use App\Repositories\ClientRepository;
use App\Utils\Number;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Str;
use Illuminate\Validation\Rule;
use Laracasts\Presenter\Exceptions\PresenterException;
use InvalidArgumentException;
use Livewire\Component;

class BillingPortalPurchasev2 extends Component
{
    /**
     * Random hash generated by backend to handle the tracking of state.
     *
     * @var string
     */
    public $hash;

    /**
     * E-mail address model for user input.
     *
     * @var string
     */
    public $email;

    /**
     * Instance of subscription.
     *
     * @var Subscription
     */
    public $subscription;

    /**
     * Instance of client contact.
     *
     * @var null|ClientContact
     */
    public $contact;

    /**
     * Id for CompanyGateway record.
     *
     * @var string|integer
     */
    public $company_gateway_id;

    /**
     * Id for GatewayType.
     *
     * @var string|integer
     */
    public $payment_method_id;

    /**
     * Array of front end variables for
     * the subscription
     */
    public $data = [];

    /**
     * List of payment methods fetched from client.
     *
     * @var array
     */
    public $methods = [];

    /**
     * Instance of \App\Models\Invoice
     *
     * @var Invoice
     */
    public $invoice;

    /**
     * Coupon model for user input
     *
     * @var string
     */
    public $coupon;

    /**
     * Quantity for seats
     *
     * @var int
     */
    public $quantity;

    /**
     * First-hit request data (queries, locales...).
     *
     * @var array
     */
    public $request_data = [];

    /**
     * Instance of company.
     *
     * @var Company
     */
    public $company;


    /**
     * Instance of company.
     *
     * @var string
     */
    public string $db;

    /**
     * Campaign reference.
     *
     * @var string|null
     */
    public $campaign;

    public $bundle;
    public $recurring_products;
    public $products;
    public $optional_recurring_products;
    public $optional_products;
    public $total;
    public $discount;
    public $sub_total;
    public $authenticated = false;
    public $login;
    public $float_amount_total;
    public $payment_started = false;
    public $valid_coupon = false;
    public $payable_invoices = [];
    public $payment_confirmed = false;
    public $is_eligible = true;
    public $not_eligible_message = '';
    
    public function mount()
    {
        MultiDB::setDb($this->db);

        $this->subscription = Subscription::with('company')->find($this->subscription);

        $this->company = $this->subscription->company;

        if(auth()->guard('contact')->check()){
            $this->email = auth()->guard('contact')->user()->email;
            $this->contact = auth()->guard('contact')->user();
            $this->authenticated = true;
            $this->payment_started = true;
        }

        $this->discount = 0;
        $this->sub_total = 0;
        $this->float_amount_total = 0;

        $this->data = [];

        $this->price = $this->subscription->price; // ?

        $this->recurring_products = $this->subscription->service()->recurring_products();
        $this->products = $this->subscription->service()->products();
        $this->optional_recurring_products = $this->subscription->service()->optional_recurring_products();
        $this->optional_products = $this->subscription->service()->optional_products();

        $this->bundle = collect();

        //every thing below is redundant

        if (request()->query('coupon')) { 
            $this->coupon = request()->query('coupon');
            $this->handleCoupon();
        }
        elseif(isset($this->subscription->promo_code) && strlen($this->subscription->promo_code) == 0 && $this->subscription->promo_discount > 0){
            $this->price = $this->subscription->promo_price; 
        }
        
    }

    public function loginValidation()
    {
        $this->resetErrorBag('login');
        $this->resetValidation('login');   
    }

    public function handleLogin($user_code)
    {

        $this->resetErrorBag('login');
        $this->resetValidation('login');

        $code = Cache::get("subscriptions:otp:{$this->email}");

        if($user_code != $code){
            $errors = $this->getErrorBag();
            $errors->add('login', ctrans('texts.invalid_code'));
            return $this;
        }

        $contact = ClientContact::where('email', $this->email)
                                ->where('company_id', $this->subscription->company_id)
                                ->first();

        if($contact){
            Auth::guard('contact')->loginUsingId($contact->id, true);
            $this->contact = $contact;
        }
        else {
            $this->createClientContact();
        }

        $this->getPaymentMethods();

        $this->authenticated = true;
        $this->payment_started = true;

    }

    public function resetEmail()
    {
        $this->resetErrorBag('login');
        $this->resetValidation('login');  
        $this->email = null;
    }

    public function handleEmail()
    {
         $this->validateOnly('email', ['email' => 'required|bail|email:rfc']);
     
         $rand = rand(100000,999999);

         $email_hash = "subscriptions:otp:{$this->email}";
         
         Cache::put($email_hash, $rand, 120);

         $this->emailOtpCode($rand);
    }

    private function emailOtpCode($code)
    {

        $cc = new ClientContact();
        $cc->email = $this->email;

        $nmo = new NinjaMailerObject;
        $nmo->mailable = new OtpCode($this->subscription->company, $this->contact, $code);
        $nmo->company = $this->subscription->company;
        $nmo->settings = $this->subscription->company->settings;
        $nmo->to_user = $cc;
        NinjaMailerJob::dispatch($nmo);

    }

    /**
     * Handle a coupon being entered into the checkout
     */
    public function handleCoupon()
    {

        if($this->coupon == $this->subscription->promo_code) {
            $this->valid_coupon = true;
            $this->buildBundle();
        }
        else{
            $this->discount = 0;
            $this->valid_coupon = false;
            $this->buildBundle();
        }

    }

    /**
     * Build the bundle in the checkout
     */
    public function buildBundle()
    {
            $this->bundle = collect();

            $data = $this->data;

            /* Recurring products can have a variable quantity */
            foreach($this->recurring_products as $key => $p)
            {

                $qty = isset($data[$key]['recurring_qty']) ? $data[$key]['recurring_qty'] : 1;
                $total = $p->price * $qty;

                $this->bundle->push([
                    'description' => $p->notes,
                    'product_key' => $p->product_key,
                    'unit_cost' => $p->price,
                    'product' => nl2br(substr($p->notes, 0, 50)),
                    'price' => Number::formatMoney($total, $this->subscription->company).' / '. RecurringInvoice::frequencyForKey($this->subscription->frequency_id),
                    'total' => $total,
                    'qty' => $qty,
                    'is_recurring' => true,
                ]);
            }

            /* One time products can only have a single quantity */
            foreach($this->products as $key => $p)
            {

                $qty = 1;
                $total = $p->price * $qty;

                $this->bundle->push([
                    'description' => $p->notes,
                    'product_key' => $p->product_key,
                    'unit_cost' => $p->price,
                    'product' => nl2br(substr($p->notes, 0, 50)),
                    'price' => Number::formatMoney($total, $this->subscription->company),
                    'total' => $total,
                    'qty' => $qty,
                    'is_recurring' => false
                ]);

            }

            foreach($this->data as $key => $value)
            {

                /* Optional recurring products can have a variable quantity */
                if(isset($this->data[$key]['optional_recurring_qty']))
                {
                    $p = $this->optional_recurring_products->first(function ($v,$k) use($key){
                        return $k == $key;
                    });

                    $qty = isset($this->data[$key]['optional_recurring_qty']) ? $this->data[$key]['optional_recurring_qty'] : false;
                    $total = $p->price * $qty;

                   if($qty)
                    {

                        $this->bundle->push([
                            'description' => $p->notes,
                            'product_key' => $p->product_key,
                            'unit_cost' => $p->price,
                            'product' => nl2br(substr($p->notes, 0, 50)),
                            'price' => Number::formatMoney($total, $this->subscription->company).' / '. RecurringInvoice::frequencyForKey($this->subscription->frequency_id),
                            'total' => $total,
                            'qty' => $qty,
                            'is_recurring' => true
                        ]);

                    }
                }

                /* Optional products can have a variable quantity */
                if(isset($this->data[$key]['optional_qty']))
                {
                    $p = $this->optional_products->first(function ($v,$k) use($key){
                        return $k == $key;
                    });

                    $qty = isset($this->data[$key]['optional_qty']) ? $this->data[$key]['optional_qty'] : false;
                    $total = $p->price * $qty;

                    if($qty)
                    {
                        $this->bundle->push([
                            'description' => $p->notes,
                            'product_key' => $p->product_key,
                            'unit_cost' => $p->price,
                            'product' => nl2br(substr($p->notes, 0, 50)),
                            'price' => Number::formatMoney($total, $this->subscription->company),
                            'total' => $total,
                            'qty' => $qty,
                            'is_recurring' => false
                        ]);
                    }
                    
                }

            }

        $this->sub_total = Number::formatMoney($this->bundle->sum('total'), $this->subscription->company);
        $this->total = $this->sub_total;

        if($this->valid_coupon) 
        {

            if($this->subscription->is_amount_discount)
                $discount = $this->subscription->promo_discount;
            else
                $discount = round($this->bundle->sum('total') * ($this->subscription->promo_discount / 100), 2);

            $this->discount = Number::formatMoney($discount, $this->subscription->company);

            $this->total = Number::formatMoney(($this->bundle->sum('total') - $discount), $this->subscription->company);

            $this->float_amount_total = ($this->bundle->sum('total') - $discount);
        }
        else {
            $this->float_amount_total = $this->bundle->sum('total');
            $this->total = Number::formatMoney($this->float_amount_total, $this->subscription->company);

        }

        return $this;
    }

    /**
     * @return $this 
     * @throws PresenterException 
     * @throws InvalidArgumentException 
     */
    private function createClientContact()
    {

        $company = $this->subscription->company;
        $user = $this->subscription->user;
        $user->setCompany($company);

        $client_repo = new ClientRepository(new ClientContactRepository());
        $data = [
            'name' => '',
            'contacts' => [
                ['email' => $this->email],
            ],
            'client_hash' => Str::random(40),
            'settings' => ClientSettings::defaults(),
        ];

        $client = $client_repo->save($data, ClientFactory::create($company->id, $user->id));

        $this->contact = $client->fresh()->contacts()->first();

        Auth::guard('contact')->loginUsingId($this->contact->id, true);

        return $this;
    } 


    /**
     * @param mixed $propertyName 
     * 
     * @return BillingPortalPurchasev2 
     */
    public function updated($propertyName) :self
    {
        if(in_array($propertyName, ['login','email']))
            return $this;

        $this->buildBundle();

        return $this;
    }

    /**
     * Fetching payment methods from the client.
     *
     * @return $this
     */
    protected function getPaymentMethods() :self
    {
        nlog("total amount = {$this->float_amount_total}");

        if($this->float_amount_total == 0)
            $this->methods = [];

        if($this->contact && $this->float_amount_total >= 1)
            $this->methods = $this->contact->client->service()->getPaymentMethods($this->float_amount_total);

        return $this;
    }

    /**
     * Middle method between selecting payment method &
     * submitting the from to the backend.
     *
     * @param $company_gateway_id
     * @param $gateway_type_id
     */
    public function handleMethodSelectingEvent($company_gateway_id, $gateway_type_id)
    {
        $this->payment_confirmed = true;

        $this->company_gateway_id = $company_gateway_id;
        $this->payment_method_id = $gateway_type_id;

        $this->handleBeforePaymentEvents();
    }

    /**
     * Method to handle events before payments.
     *
     * @return void
     */
    public function handleBeforePaymentEvents() :self
    {

        $eligibility_check = $this->subscription->service()->isEligible($this->contact);

        if(is_array($eligibility_check) && $eligibility_check['message'] != 'Success'){
            
            $this->is_eligible = false;
            $this->not_eligible_message = $eligibility_check['message'];

            return $this;

        }

        $data = [
            'client_id' => $this->contact->client->hashed_id,
            'date' => now()->format('Y-m-d'),
            'invitations' => [[
                'key' => '',
                'client_contact_id' => $this->contact->hashed_id,
            ]],
            'user_input_promo_code' => $this->coupon,
            'coupon' => empty($this->subscription->promo_code) ? '' : $this->coupon,

        ];

        $this->invoice = $this->subscription
            ->service()
            ->createInvoiceV2($this->bundle, $this->contact->client_id, $this->valid_coupon)
            ->service()
            ->markSent()
            ->fillDefaults()
            ->adjustInventory()
            ->save();

        Cache::put($this->hash, [
            'subscription_id' => $this->subscription->hashed_id,
            'email' => $this->email ?? $this->contact->email,
            'client_id' => $this->contact->client->hashed_id,
            'invoice_id' => $this->invoice->hashed_id,
            'context' => 'purchase',
            'campaign' => $this->campaign,
            'bundle' => $this->bundle,
        ], now()->addMinutes(60));

        $this->emit('beforePaymentEventsCompleted');

        return $this;

    }


    /**
     * Starts the trial
     * 
     * @return \Illuminate\Routing\Redirector|\Illuminate\Http\RedirectResponse
     */
    public function handleTrial()
    {
        return $this->subscription->service()->startTrial([
            'email' => $this->email ?? $this->contact->email,
            'quantity' => $this->quantity,
            'contact_id' => $this->contact->hashed_id,
            'client_id' => $this->contact->client->hashed_id,
            'bundle' => $this->bundle,
        ]);
    }

    /**
     * When the subscription total comes to $0 we 
     * pass back a $0 Invoice.
     *
     * @return \Illuminate\Routing\Redirector|\Illuminate\Http\RedirectResponse
     */
    public function handlePaymentNotRequired()
    {

        $eligibility_check = $this->subscription->service()->isEligible($this->contact);

        if(is_array($eligibility_check) && $eligibility_check['message'] != 'Success'){
            
            $this->is_eligible = false;
            $this->not_eligible_message = $eligibility_check['message'];
            return $this;

        }

        $invoice = $this->subscription
            ->service()
            ->createInvoiceV2($this->bundle, $this->contact->client_id, $this->valid_coupon)
            ->service()
            ->fillDefaults()
            ->adjustInventory()
            ->save();

            $invoice->number = null;

            $invoice->service()
                    ->markPaid()
                    ->save();

            return $this->subscription
                        ->service()
                        ->handleNoPaymentFlow($invoice, $this->bundle, $this->contact);

    }


    ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    
    public function rules()
    {
        $rules = [
        ];

        return $rules;
    }

    public function attributes()
    {
        $attributes = [
        ];

        return $attributes;
    }

    public function store()
    {
    
    }

    /**
     * Create a blank client. Used for new customers purchasing.
     *
     * @return mixed
     * @throws \Laracasts\Presenter\Exceptions\PresenterException
     */
    protected function createBlankClient()
    {
        $company = $this->subscription->company;
        $user = $this->subscription->user;
        $user->setCompany($company);
        
        $client_repo = new ClientRepository(new ClientContactRepository());

        $data = [
            'name' => '',
            'contacts' => [
                ['email' => $this->email],
            ],
            'client_hash' => Str::random(40),
            'settings' => ClientSettings::defaults(),
        ];

        foreach ($this->request_data as $field => $value) {
            if (in_array($field, Client::$subscriptions_fillable)) {
                $data[$field] = $value;
            }

            if (in_array($field, ClientContact::$subscription_fillable)) {
                $data['contacts'][0][$field] = $value;
            }
        }

        if(array_key_exists('currency_id', $this->request_data)) {

            $currency = Cache::get('currencies')->filter(function ($item){
                return $item->id == $this->request_data['currency_id'];
            })->first();

            if($currency)
                $data['settings']->currency_id = $currency->id;

        }
        elseif($this->subscription->group_settings && property_exists($this->subscription->group_settings->settings, 'currency_id')) {

            $currency = Cache::get('currencies')->filter(function ($item){
                return $item->id == $this->subscription->group_settings->settings->currency_id;
            })->first();

            if($currency)
                $data['settings']->currency_id = $currency->id;

        }

        if (array_key_exists('locale', $this->request_data)) {
            $request = $this->request_data;

            $record = Cache::get('languages')->filter(function ($item) use ($request) {
                return $item->locale == $request['locale'];
            })->first();

            if ($record) {
                $data['settings']['language_id'] = (string)$record->id;
            }
        }

        $client = $client_repo->save($data, ClientFactory::create($company->id, $user->id));

        return $client->fresh()->contacts->first();
    }


    /**
     * Proxy method for starting the trial.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
     */

    public function render()
    {
        if (array_key_exists('email', $this->request_data)) {
            $this->email = $this->request_data['email'];
        }

        if ($this->contact instanceof ClientContact) {
            $this->getPaymentMethods();
        }

        return render('components.livewire.billing-portal-purchasev2');
    }

}