File includes/class-dfw-manage-cart.php

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<?php
/**
 * Manage the product item data in the cart
 * 
 * @author Tyche Softwares
 * @since 1.0 
 * @category Classes
 * @package Deposits-for-WooCommerce/Cart
 */

class DFW_Manage_Cart {

    /**
     * Constructor function
     * @since 1.o
     */
    public function __construct(){
        add_action( 'woocommerce_before_add_to_cart_button'         ,array( &$this, 'dfw_display_deposits_form' ), 99 );
        add_filter( 'woocommerce_add_cart_item_data'                ,array( &$this, 'dfw_add_cart_item_data' ), 10, 2 );
        add_filter( 'woocommerce_add_cart_item'                     ,array( &$this, 'dfw_add_cart_item' ), 99, 1 );        
        add_filter( 'woocommerce_get_cart_item_from_session'        ,array( $this, 'dfw_get_cart_item_from_session' ), 99, 3 );
        add_filter( 'woocommerce_get_item_data'                     ,array( &$this, 'dfw_get_product_data' ), 10, 2 );
        add_filter( 'woocommerce_cart_item_price'                   ,array( &$this, 'dfw_get_item_price' ), 10, 3 );
        add_filter( 'woocommerce_cart_item_subtotal'                ,array( &$this, 'dfw_display_item_subtotal'), 10, 3);
        add_action( 'woocommerce_cart_totals_before_order_total'    ,array( &$this, 'dfw_display_cart_totals_before' ), 1 );
        add_action( 'woocommerce_review_order_before_order_total'   ,array( &$this, 'dfw_display_cart_totals_before' ), 99 );
        //add_action( 'woocommerce_add_order_item_meta'               ,array( &$this, 'dfw_add_order_item_meta' ), 50, 3 );
        add_action( 'woocommerce_new_order_item'                    ,array( &$this, 'dfw_new_order_item' ), 50, 3 );  
    }


    /**
     * Add options to select deposit or full payment on product front end page
     * 
     * @since 1.0
     */
    public function dfw_display_deposits_form(){
        $product_id = $GLOBALS['post']->ID;
        if( DFW_Manage_Products::dfw_is_deposits_enabled( $product_id ) ){    
             wc_get_template( 'deposit-form.php', array( 'post' => $GLOBALS['post'] ), 'deposits-for-woocommerce', plugin_dir_path(__FILE__) .'frontend/' );
        }
    }


    /**
     * Add meta information to cart item
     * 
     * @hook woocommerce_add_cart_item_data
     * 
     * @param array $cart_item_meta Meta data of the item added to cart
     * @param int $product_id Product id
     * @return array $cart_item_meta 
     * @since 1.0
     */
    public function dfw_add_cart_item_data( $cart_item_meta, $product_id ){

        if( ! DFW_Manage_Products::dfw_is_deposits_enabled( $product_id ) ){
            return $cart_item_meta;
        }

        $plans = array();
        $type  = DFW_Manage_Products::dfw_get_deposit_type( $product_id );

        if( 'product_payment_plan' == $type ) {
            $plans = DFW_Manage_Plans::get_plans_for_product( $product_id );
        }else if( 'payment_plan' == $type ){
            $plans = DFW_Manage_Plans::get_default_plans();
        }else {
            $plans = false;
        }

        $plan_id = false;

        if(  ! empty( $plans ) ) {
            $plan_id = $plans[0]->get_plan_id();
        }

        $wc_deposit_option = isset( $_POST[ 'wcd_option' ] ) ? sanitize_text_field( $_POST[ 'wcd_option' ] ) : 'enabled' ;        
        $wc_deposit_payment_plan = isset( $_POST['wcd_plan']) ? sanitize_text_field( $_POST[ 'wcd_plan'] ) : $plan_id;
        
        if( 'enabled' === $wc_deposit_option || DFW_Manage_Products::dfw_is_deposits_forced( $product_id) ) {
            $cart_item_meta[ 'has_deposit' ] = true;

            if( 'product_payment_plan' === DFW_Manage_Products::dfw_get_deposit_type( $product_id ) || 'payment_plan' === DFW_Manage_Products::dfw_get_deposit_type( $product_id ) ) {
                $cart_item_meta[ 'payment_plan' ] = $wc_deposit_payment_plan;
            }
            
            $product                         = wc_get_product( $product_id );
            $cart_item_meta[ 'full_amount' ] = $product->get_price();
        }

        return $cart_item_meta;

    }

    /**
     * Get Cart item data from session
     * 
     * @hook woocommerce_get_cart_item_from_session
     * @param array $cart_item Item added to the cart
     * @param array $values 
     * @param array $cart_item_key
     * @since 1.0
     */
    public function dfw_get_cart_item_from_session( $cart_item, $values, $cart_item_key ) {
        $cart_item['has_deposit']  = ! empty( $values['has_deposit'] );
        $cart_item['payment_plan'] = ! empty( $values['payment_plan'] ) ? absint( $values['payment_plan'] ) : 0;
        return $this->dfw_add_cart_item( $cart_item );
    }

    
    /**
     * Adjust the price of the product based on deposits
     * 
     * @hook woocommerce_add_cart_item
     * 
     * @param array $cart_item Cart item meta data
     * @return array $cart_item
     * @since 1.0
     */
    public function dfw_add_cart_item( $cart_item ) {
        $product_id = $cart_item[ 'data' ]->get_id();
        if( !empty ( $cart_item[ 'has_deposit' ] ) ){
            $deposit = DFW_Manage_Products::dfw_get_deposit( $cart_item['data'], ! empty( $cart_item['payment_plan'] ) ? $cart_item['payment_plan'] : 0 );
            //$deposit                = WCD_Deposits_Product_Manage::get_deposit( $product_id );  
            $cart_item[ 'deposit' ] = $deposit;
            if( !empty ( $cart_item['payment_plan'] ) ){
                $plan                     = DFW_Manage_Plans::get_plan( $cart_item['payment_plan'] );
                $total_percent            = $plan->get_total_percent();
                $cart_item['full_amount'] = ( $cart_item['data']->get_price() / 100 ) * $total_percent;
            }else {
                $cart_item['full_amount'] = $cart_item['data']->get_price();
            }

            if( false == $cart_item[ 'deposit' ] ) {
                $cart_item[ 'deposit' ] = $cart_item['full_amount'];
            }
            $cart_item[ 'data' ]->set_price( $cart_item[ 'deposit' ] );
        }
        return $cart_item;
    }


    /**
     * Display meta under product name in the cart
     * 
     * @hook woocommerce_get_item_data
     * @param mixed $other_data Meta to display under product name
     * @param mixed $cart_item Cart item meta data
     * @return array $other_data
     * @since 1.0
     */
    public function dfw_get_product_data( $other_data, $cart_item){
        if( ! empty( $cart_item['payment_plan'] ) ){
            $plan         = DFW_Manage_Plans::get_plan( $cart_item['payment_plan'] );
            $other_data[] = array(
                'name'    => __( 'Payment Plan', 'deposits-for-woocommerce' ),
                'value'   => $plan->get_plan_name(),
                'display' => ''
            );
        }
        return $other_data;
    }

    /**
     * Display the correct item price
     * 
     * @hook woocommerce_cart_item_price
     * 
     * @param float $output Item Price
     * @param mixed $cart_item Cart item meta data
     * @param mixed $cart_item_key 
     * @since 1.0
     */
    public function dfw_get_item_price( $output, $cart_item, $cart_item_key ) {
        if( !empty ( $cart_item[ 'has_deposit' ] ) ) {
            $product_data = $cart_item[ 'data' ];
            $amount       = $cart_item['full_amount'];
            $output       = wc_price( $amount );
        }

        return $output;
    }

    /**
     * Show the amount payable based on payment plan or fixed amount
     * 
     * @hook woocommerce_cart_item_subtotal
     * 
     * @param $output Text to display under item subtotal
     * @param mixed $cart_item $cart_item Cart item meta data
     * @param mixed $cart_item_key
     * @since 1.0
     */
    public function dfw_display_item_subtotal( $output, $cart_item, $cart_item_key ){

        if ( ! isset( $cart_item['full_amount'] ) ) {
            return $output;
        }

        if( !empty ( $cart_item[ 'has_deposit' ] ) ) {
            $product_data   = $cart_item[ 'data' ];
            $quantity       = $cart_item[ 'quantity' ];
            $total_deposit  = $cart_item[ 'deposit' ] * $quantity;
            $full_amount    = $quantity * ( $cart_item['full_amount'] );
            if( ! empty( $cart_item['payment_plan'] ) ){
                $plan       = new DFW_Deposits_Plan( $cart_item['payment_plan'] );
                $output    .= '<br/><small>'. $plan->get_formatted_plan_schedule( $full_amount );
            }else {
                $output    .= '<br/><small>'. wc_price( $full_amount ) .' payable in total </small>';  
            }
        }
        return $output;
    }

    /**
     * Display the payable amount & future payments in the cart totals
     * 
     * @hook woocommerce_cart_totals_before_order_total
     * 
     * @since 1.0 
     */
    public function dfw_display_cart_totals_before(){
        $future_payment_amount = self::dfw_get_future_payments();
        global $woocommerce;
        $is_deposits_enabled = false;
        foreach( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {
            $_product = $values['data'];
            $product_id = $_product->get_id();
            if( DFW_Manage_Products::dfw_is_deposits_enabled( $product_id ) ) {
                $is_deposits_enabled = true;
            }
        }
        ?>

        <?php if( $is_deposits_enabled ) { ?>
        <tr class="order-total">
            <th><?php _e( 'Payable Today', 'deposits-for-woocommerce' ); ?></th>
            <td><?php wc_cart_totals_order_total_html(); ?></td>
        </tr>
        <tr class="order-total">
            <th><?php _e( 'Future Payments', 'deposits-for-woocommerce' ); ?></th>
            <td><strong><?php echo wc_price( $future_payment_amount ) ; ?></strong></td>
        </tr>
        <?php }
    }



    /**
     * Get the remaining amount after paying deposit
     * @since 1.0
     */
    public function dfw_get_remaining_amount() {
        $remaining_amount = 0;
        foreach( WC()->cart->get_cart() as $cart_item ) {
            if( !empty ( $cart_item[ 'has_deposit' ] ) ) {
                 $product_data      = $cart_item[ 'data' ];
                 $quantity          = $cart_item[ 'quantity' ];
                 $remaining_amount += $quantity * ( $cart_item[ 'full_amount' ] - $cart_item[ 'deposit' ] );
            }
        }
        return $remaining_amount;
    }
    
    /**
     * Get the future payment amount after paying deposit
     * @since 1.0
     */
    public function dfw_get_future_payments(){
        return $this->dfw_get_remaining_amount();
    }

    /**
     * Add meta information of deposit amount & payment plans to order items
     * 
     * @param int $item_id 
     * @param mixed $cart_item
     * @since 1.0
     */
    public function dfw_add_order_item_meta( $item_id, $cart_item ) {

        if( ! empty( $cart_item['has_deposit'] ) ) {
            $quantity = $cart_item[ 'quantity' ];
            $total = $quantity * $cart_item['full_amount'] ;

            wc_add_order_item_meta( $item_id, '_has_deposit', 'enabled' );
            wc_add_order_item_meta( $item_id, '_full_amount', $total );

            if ( ! empty( $values['payment_plan'] ) ) {
                wc_add_order_item_meta( $item_id, '_payment_plan', $values['payment_plan'] );
            }
        }
    }

    /**
     * Add order item meta while placing the order
     * 
     * @hook woocommerce_new_order_item
     * 
     * @param int $item_id Cart Item ID  
     * @param mixed $item 
     * @param int $order_id Order ID
     * @since 1.2
     */

    public function dfw_new_order_item( $item_id, $item, $order_id ){

        //foreach( WC()->cart->get_cart() as $cart_item ){
            if( ! empty( $item->legacy_values['has_deposit'] )  ) {
                $quantity = $item->legacy_values[ 'quantity' ];
                $total = $quantity * $item->legacy_values['full_amount'] ;
    
                wc_add_order_item_meta( $item_id, '_has_deposit', 'enabled' );
                wc_add_order_item_meta( $item_id, '_full_amount', $total );
    
                if ( ! empty( $item->legacy_values['payment_plan'] ) ) {
                    wc_add_order_item_meta( $item_id, '_payment_plan', $item->legacy_values['payment_plan'] );
                }
            }
        //}

    }
}

$dfw_manage_cart = new DFW_Manage_Cart();

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