<?php

namespace FQP\Form;

use FQP;
use InnocardLoyalty;

class Step6 extends FQP\FormAbstract {

    const PAYMENT_METHOD_STRIPE = 'stripe';
    const PAYMENT_METHOD_INVOICE = 'invoice';

    protected static $fields = [];

    public static function init_fields() {
        $fields = [];

        $offline_payment_fee = get_option( 'fqp-main-offline-payment-fee' );
        $fields['payment_method'] = [
            'type'           => 'radio',
            'escape_options' => false,
            'multi_options'  => [
                self::PAYMENT_METHOD_STRIPE  =>  fqp_esc_html__( 'Online Payment with Credit Card' ) . '<span>STRIPE</span>',
                self::PAYMENT_METHOD_INVOICE => fqp_esc_html__( 'Payment by Invoice' ) . " (+ CHF {$offline_payment_fee})",
            ],
            'input_attribs' => [
                self::PAYMENT_METHOD_STRIPE  => [
                    'data-method-title' => fqp_esc_html__( 'Stripe' ),
                    'data-fee'               => 0.0,
                ],
                self::PAYMENT_METHOD_INVOICE => [
                    'data-method-title' => fqp_esc_html__( 'Payment by Invoice' ),
                    'data-fee'               => $offline_payment_fee,
                ],
            ],
        ];

        $fields['comment'] = [
            'type'    => 'textarea',
            'attribs' => [],
        ];

        $fields['email_subscription'] = [
            'type'        => 'checkbox',
            'label'       => 'EN Ja, ich möchte über Tipps und News rund um die Firmengründung und das Unternehmertum informiert werden. (Keine Angst, wir werden Sie nicht mit Unmengen an E-Mails belästigen und Sie können die Informationen jederzeit wieder abbestellen.)',
            'attribs'     => []
        ];

        $lang = FQP\FQP::get_curr_lang();
        $url = get_site_url();
        if ( 'de' == $lang ) {
            $url = "{$url}/{$lang}/agb/";
        } else {
            $url = "{$url}/{$lang}/agb/"; // англійська має мити власний урл
        }
        $fields['agree'] = [
            'type'         => 'checkbox',
            'label'        => sprintf( fqp__( 'EN Ja, ich akzeptiere die <a href="%s">AGB\'s</a>' ), $url ),
            'escape_label' => false,
            'attribs'      => [
                'required' => true,
            ]
        ];

        $fields['zc_gad'] = [
            'type'         => 'hidden',
        ];

        $fields['loyalty_card_id'] = [
            'type'    => 'hidden',
            'attribs' => [],
        ];
        $fields['loyalty_card_value'] = [
            'type'    => 'hidden',
            'attribs' => [],
        ];

        static::$fields = $fields;
    }

    public static function get_fields( $name = null ) {

        if ( empty( static::$fields ) ) {
            static::init_fields();
        }
        return fqp_array_get( static::$fields, $name );
    }

    /**
     * Return array [ 'price', 'partner_discount', 'total_discount', 'payment_fee', 'payment_fee_tax', 'total', 'tax', 'VAT' ]
     *
     * @param $all_data
     *
     * @return array
     */
    public static function get_order_total($all_data, $payment_method = null )
    {
        $price = $total_discount = $total = $tax = 0;
        $partner_discount = [];
        if ( is_array( $all_data ) && ! empty( $all_data ) ) {
            $entry_types = FQP\DB::get_entry_types();
            $prices = FQP\Settings::get_prices();
            $curr_lang = FQP\FQP::get_curr_lang();
            $et_id = @$all_data['step1']['entry_type'];
            $bt_id = @$all_data['step1']['backing_type'];

            $et = $entry_types[$et_id];
            if ( 'y' == $et['hasBacking'] ) {
                $price = $total = $prices['price'][ $et_id ][ $bt_id ][ $curr_lang ];
            } else {
                $price = $total = $prices['price'][ $et_id ][ $curr_lang ];
            }

            if ( ! empty( $all_data['step1']['partners'] ) ) {
                $partners = FQP\DB::get_partners_query();
                while ( $partners->have_posts() ) {
                    $partner = $partners->next_post();
                    if ( in_array( $partner->ID, $all_data['step1']['partners'] ) ) {
                        if ( 'y' == $et['hasBacking'] ) {
                            $discount = $prices['partner_discount'][ $partner->ID ][ $et_id ][ $bt_id ];
                        } else {
                            $discount = $prices['partner_discount'][ $partner->ID ][ $et_id ];
                        }
                        if ($discount) {
                            $discount_price = bcdiv( bcmul( $price, $discount, 2 ), '100', 2 );
                            if ( 1 == bccomp( $discount_price, $total, 2 ) ) {
                                $discount_price = $total;
                            }
                            $total = bcsub( $total, $discount_price, 2 );
                            if ( - 1 == bccomp( $total, '0', 2 ) ) {
                                $total = 0;
                            }
                            $partner_discount[ $partner->ID ] = $discount_price;
                        } else {
                            $partner_discount[ $partner->ID ] = 0;
                        }
                    }
                }
                $banks = FQP\Bank::get();
                foreach ( $banks as $bank ) {
                    if (in_array($bank->ID, $all_data['step1']['partners'])) {
                        $b_discounts = FQP\Bank::fetch_discounts( $bank );
                        if ( 'y' == $et['hasBacking'] ) {
                            $discount = $b_discounts[ $et_id ][ $bt_id ];
                        } else {
                            $discount = $b_discounts[ $et_id ];
                        }
                        if ($discount) {
                            $discount_price = bcdiv( bcmul( $price, $discount, 2 ), '100', 2 );
                            if ( 1 == bccomp( $discount_price, $total, 2 ) ) {
                                $discount_price = $total;
                            }
                            $total = bcsub( $total, $discount_price, 2 );
                            if ( - 1 == bccomp( $total, '0', 2 ) ) {
                                $total = 0;
                            }
                            $partner_discount[ $bank->ID ] = $discount_price;
                        } else {
                            $partner_discount[ $bank->ID ] = 0;
                        }
                    }
                }
                if ( 0 != bccomp( $price, $total, 2 ) ) {
                    $total_discount = bcsub( $price, $total, 2 );
                }
            }

            $products_total = 0;
            $products_tax = 0;
            if ( ! empty( $all_data['step6']['products'] ) ) {
                $products = FQP\Product::get_query( $all_data['step1']['entry_type'], @$all_data['step1']['backing_type'] );
                if ( $products && $products->have_posts() ) {
                    while ( $products->have_posts() ) {
                        $product = $products->next_post();
                        if ( in_array( $product->ID, $all_data['step6']['products'] ) ) {
                            $products_total = bcadd( $products_total, get_field( 'price', $product ), 2);
                        }
                    }
                }
                if ($products_total > 0) {
                    $products_tax = FQP\Shortcode\QuotePrice::claclulateTax( $products_total, FQP\FQP::VAT );
                }
            }

            $payment_fee = 0.0;
            $payment_fee_tax = 0.0;

            $VAT = FQP\FQP::VAT;

            if ( $total > 0 || $products_total > 0 ) {
                if ( $payment_method && self::PAYMENT_METHOD_INVOICE == $payment_method ) {
                    $payment_fee = floatval( get_option( 'fqp-main-offline-payment-fee' ) );
                    $payment_fee_tax = FQP\Shortcode\QuotePrice::claclulateTax( $payment_fee, $VAT );
                }

                $tax = FQP\Shortcode\QuotePrice::claclulateTax( $total, $VAT );
            }
        }

        $loyalty_card_value = 0;
        if ( $all_data['step6']['loyalty_card_id'] ) {
            try {
                $card =  InnocardLoyalty\Card::get( $all_data['step6']['loyalty_card_id'] );
                $loyalty_card_value = $card['Balance'];
            } catch (InnocardLoyalty\InnocadLoyaltyException $e) {
                if ( WP_DEBUG ) {
                    wp_die( $e->getMessage() );
                }
            }
        }

        $loyalty_card_discount = '0.00';
        if ( $loyalty_card_value > 0 ) {
            $amount = '0.00';
            $amount = bcadd( $amount, $total, 2 );
            $amount = bcadd( $amount, $tax, 2 );
            $amount = bcadd( $amount, $products_total, 2 );
            $amount = bcadd( $amount, $products_tax, 2 );
            $amount = bcadd( $amount, $payment_fee, 2 );
            $amount = bcadd( $amount, $payment_fee_tax, 2 );
            if ( 1 == bccomp($amount, $loyalty_card_value, 2) ) {
                $loyalty_card_discount = $loyalty_card_value;
            } else {
                $loyalty_card_discount = $amount;
            }
        }

        return compact(
            'price', // ціна за тип фірми
            'products_total', // загальна сума за всі продукти
            'products_tax', // податок за всі продукти
            'partner_discount', // масив знижок по кожному партнеру
            'total_discount', // зазальга знижка (сума partner_discount)
            'payment_fee', // ціна за тип "payment_method"
            'payment_fee_tax', // податок за payment_fee
            'total', // загальна сума ( price - total_discount )
            'tax', // податок за total
            'VAT', // ПДВ%
            'loyalty_card_value', // баланс на карті лояльності
            'loyalty_card_discount' // сума списання з карти лояльності
        );
    }

    public static function sanitize_data( &$data, $all_data  = []) {
        if ( !is_array( $data ) ) {
            $data = [];
        }

        $errors = [];

        $required_msg = fqp__( '%s is required' );

        $fields = static::get_fields();

        $order_total = self::get_order_total( $all_data );
        if ( empty( $data['payment_method'] ) && $order_total['total'] > 0 ) {
            $errors[] = esc_html( sprintf( $required_msg,  fqp__( 'Bezahlverfahren' ) ) );
        }
        unset( $fields['payment_method'] );

        foreach ( $fields as $name => $specs ) {
            if ( @$specs['attribs']['required'] && empty( $data[$name] ) ) {
                $title = ( ! empty( $specs['label'] ) ) ? $specs['label'] : $specs['attribs']['placeholder'];
                $errors[] = esc_html( sprintf( $required_msg,  fqp__( $title ) ) );
            }
        }

        if ( ! empty( $data['products'] ) && ! empty( $all_data['step1'] ) ) {
            $products = FQP\Product::get_query( $all_data['step1']['entry_type'], @$all_data['step1']['backing_type'] );
            if ( $products && $products->have_posts() ) {
                $products = array_column( $products->posts, 'ID' );
                foreach ( $data['products'] as $index => $product_id ) {
                    if ( ! in_array( $product_id, $products ) ) {
                        unset( $data['products'][$index] );
                    }
                }
            }
        }

        $loyalty_card_id = trim( fqp_array_get( $data, 'loyalty_card_id', '' ) );
        if ( $loyalty_card_id ) {
            try {
                InnocardLoyalty\Card::get( $loyalty_card_id );
            } catch (InnocardLoyalty\InnocadLoyaltyException $e) {
                $errors[] = esc_html( $e->getMessage() );
            }
        }

        return ( empty( $errors ) ) ? true : $errors;
    }

    public static function get_filter_fields() {
        $fields = parent::get_filter_fields();
        $fields['products'] = [];
        return $fields;
    }
}