<?php

namespace App\Services;

use App\Models\Product;
use App\Models\ShoppingOrder;
use App\Models\ShoppingPayment;
use App\Models\ShoppingUser;
use App\Models\UserAbo;
use App\Models\UserAboItem;
use App\Models\UserAboOrder;
use App\User;
use Carbon\Carbon;

class AboHelper
{
    public static $txaction_filter_text = [
        'paid' => 'paymend_paid',
        'appointed' => 'paymend_open',
        'failed' => 'paymend_failed',
        'extern' => 'extern_open', // offen
        'extern_paid' => 'extern_paid',
        'invoice_open' => 'invoice_open',
        'invoice_paid' => 'invoice_paid',
        'invoice_non' => 'invoice_no_payment',
        'NULL' => 'no_payment',
    ];

    public static function userHasAbo(User $user)
    {
        $user = $user ? $user : \Auth::user();

        return UserAbo::where('user_id', $user->id)->where('is_for', 'me')->where('status', '>', 1)->first() === null ? false : true;
    }

    public static function memberHasAbo(ShoppingUser $shopping_user)
    {
        if (! $shopping_user) {
            return false;
        }

        return UserAbo::where('email', $shopping_user->billing_email)->where('is_for', 'ot')->where('status', '>', 1)->first() === null ? false : true;
    }

    public static function hasAboByEmail($email)
    {
        return UserAbo::where('email', $email)->where('status', '>', 1)->first() === null ? false : true;
    }

    public static function setAboStatus(ShoppingOrder $shopping_order, $status, $paid = false)
    {
        $user_abo = $shopping_order->getUserAbo();
        if ($user_abo && $user_abo->status < 2) { // status < 2 is not active
            $user_abo->update(['status' => $status]);
        }
        UserAboOrder::where('user_abo_id', $user_abo->id)->where('shopping_order_id', $shopping_order->id)->update(['status' => $status, 'paid' => $paid]);
    }

    public static function setAboActive(ShoppingOrder $shopping_order, $status, $paid = false)
    {
        self::setAboStatus($shopping_order, $status, $paid);

        // delete UserAbo is not active status = 1
        // is_for = me
        UserAbo::where('user_id', $shopping_order->auth_user_id)->where('is_for', 'me')->where('status', 1)->delete();
        // is_for = ot
        UserAbo::where('member_id', $shopping_order->member_id)->where('email', $shopping_order->shopping_user->billing_email)->where('is_for', 'ot')->where('status', 1)->delete();
    }

    public static function getAboMinDuration()
    {
        return \App\Models\Setting::getContentBySlug('abo-min-duration');
    }

    public static function canCancelAbo(UserAbo $user_abo, $view = 'user')
    {
        $minDuration = self::getAboMinDuration();
        if ($view === 'admin') {
            return true;
        }
        $paidOrdersCount = $user_abo->getCountPaidOrders();

        return $paidOrdersCount >= (int) $minDuration;
    }

    public static function isAddOnlyMode(UserAbo $user_abo, $view = 'user'): bool
    {
        if ($view === 'admin') {
            return false;
        }

        return ! self::canCancelAbo($user_abo, $view);
    }

    public static function canEditAbo($user_abo, $view = 'user')
    {
        if ($view === 'portal') {
            return true;
        }
        $user = \Auth::user();
        if ($view !== 'admin' && (! $user || ($user_abo->user_id != $user->id && $user_abo->member_id != $user->id))) {
            return false;
        }

        return true;
    }

    public static function aboHasBaseProduct($yard_products)
    {
        foreach ($yard_products as $product) {
            if (is_array($product->options->show_on)) {
                if (in_array('12', $product->options->show_on)) {
                    return true;
                }
            }
        }

        return false;
    }

    public static function getAboShowOn(Product $product)
    {
        $show_on = $product->show_on;
        if (in_array('12', $show_on)) {
            return 'base';
        }
        if (in_array('13', $show_on)) {
            return 'upgrade';
        }

        return false;
    }

    public static function getAboTypeBadge($abo_type)
    {
        if ($abo_type === 'base') {
            return '<span class="badge badge-pill badge-warning"><i class="fas fa-star"></i> '.__('abo.'.$abo_type).'</span></a>';
        }
        if ($abo_type === 'upgrade') {
            return '<span class="badge badge-pill badge-info"><i class="far fa-star"></i> '.__('abo.'.$abo_type).'</span></a>';
        }

        return '';
    }

    public static function setNextDate($date, $abo_interval)
    {
        $nextDate = Carbon::parse($date)->firstOfMonth();
        $nextDate->addDays($abo_interval - 1);

        return $nextDate->gt($date) ? $nextDate : $nextDate->addMonth(1);
    }

    public static function getFirstAboDate($date, $abo_interval)
    {
        $nextDate = Carbon::parse($date)->firstOfMonth()->addMonth(1);
        $nextDate->addDays($abo_interval - 1);

        return $nextDate->gt($date) ? $nextDate : $nextDate->addMonth(1);
    }

    public static function createNewAbo(ShoppingPayment $shopping_payment)
    {
        // is Abo - create init Abo from PP or else
        if ($shopping_payment->shopping_order->is_abo && $shopping_payment->shopping_order->abo_interval > 0) {
            $payment_transaction = $shopping_payment->payment_transactions->last();

            // next_date immer im nächsten Monat starten
            // is auth_user_id = Berater bestellung
            // is member_id = Kunden bestellung
            // is for = me = mich oder ot = kunde
            $user_abo = UserAbo::create([
                'user_id' => $shopping_payment->shopping_order->auth_user_id,
                'member_id' => $shopping_payment->shopping_order->member_id,
                'shopping_user_id' => $shopping_payment->shopping_order->shopping_user_id,
                'email' => $shopping_payment->shopping_order->shopping_user->billing_email,
                'is_for' => $shopping_payment->shopping_order->shopping_user->is_for,
                'payone_userid' => $payment_transaction->userid,
                'clearingtype' => $shopping_payment->clearingtype,
                'wallettype' => $shopping_payment->wallettype,
                'carddata' => $shopping_payment->carddata,
                'amount' => $shopping_payment->amount,
                'status' => 1,
                'abo_interval' => $shopping_payment->abo_interval,
                'start_date' => now(),
                'last_date' => now(),
                'next_date' => self::getFirstAboDate(now(), $shopping_payment->abo_interval),
            ]);

            if ($user_abo) {
                self::createAboItems($user_abo, $shopping_payment);
                UserAboOrder::create([
                    'user_abo_id' => $user_abo->id,
                    'shopping_order_id' => $shopping_payment->shopping_order_id,
                    'status' => 1,
                ]);
            }
        }
    }

    public static function createAboItems($user_abo, ShoppingPayment $shopping_payment)
    {
        foreach ($shopping_payment->shopping_order->shopping_order_items as $item) {
            UserAboItem::create([
                'user_abo_id' => $user_abo->id,
                'product_id' => $item->product_id,
                'comp' => $item->comp ?? 0,
                'qty' => $item->qty,
                'status' => 1,
            ]);
        }

        $user_abo->load('user_abo_items');
        AboItemHistoryService::logInitialCreation($user_abo, 'system');
    }

    public static function getTransStatusFilterText()
    {
        $ret = [];
        foreach (self::$txaction_filter_text as $key => $val) {
            $ret[$key] = trans('payment.'.$val);
        }

        return $ret;
    }

    /**
     * Prüft effizient, ob ein User im Team eines anderen Users ist (Downline).
     * Traversiert die Sponsor-Hierarchie rekursiv (m_sponsor) statt die komplette
     * TreeCalcBot-Struktur aufzubauen.
     *
     * @param  int  $teamOwnerId  ID des Team-Users (Berechtigter)
     * @param  int  $userToCheckId  ID des zu prüfenden Users (z.B. Abo-Besitzer)
     * @param  int  $maxDepth  Max. Tiefe (Schutz vor zirkulären Referenzen)
     * @return bool True wenn userToCheckId im Team von teamOwnerId ist
     */
    public static function isUserInTeam(int $teamOwnerId, int $userToCheckId, int $maxDepth = 100): bool
    {
        if ($teamOwnerId === $userToCheckId) {
            return true;
        }

        $currentId = $userToCheckId;
        $depth = 0;

        while ($depth < $maxDepth) {
            $currentUser = User::where('id', $currentId)->select('m_sponsor')->first();
            if (! $currentUser || ! $currentUser->m_sponsor) {
                return false;
            }

            if ($currentUser->m_sponsor === $teamOwnerId) {
                return true;
            }

            $currentId = $currentUser->m_sponsor;
            $depth++;
        }

        return false;
    }

    /**
     * Liefert alle User-IDs im Team (Downline) eines Users.
     * Traversiert die Sponsor-Hierarchie rekursiv nach unten statt TreeCalcBot.
     *
     * @param  int  $teamOwnerId  ID des Team-Users
     * @param  int  $maxDepth  Max. Tiefe (Schutz vor Endlosschleifen)
     * @return int[]
     */
    public static function getTeamUserIds(int $teamOwnerId, int $maxDepth = 50): array
    {
        $teamUserIds = [];
        $toProcess = [$teamOwnerId];
        $depth = 0;

        while (! empty($toProcess) && $depth < $maxDepth) {
            $children = User::whereIn('m_sponsor', $toProcess)
                ->whereNull('deleted_at')
                ->pluck('id')
                ->toArray();

            $teamUserIds = array_merge($teamUserIds, $children);
            $toProcess = $children;
            $depth++;
        }

        return array_values(array_unique($teamUserIds));
    }
}