From c6c655cdea1d5d7d34be1bd714b5cc7b86302c0b Mon Sep 17 00:00:00 2001
From: Marek Isalski <maz@from-this-height.tenebrae.faelix.org>
Date: Sun, 27 Mar 2016 15:58:34 +0100
Subject: [PATCH] can now remove items from a cart

---
 fulcrm_shoppingcart.module            | 63 +++++++++++++++++++++++++++
 fulcrm_shoppingcart_cart_item.tpl.php |  2 +-
 2 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/fulcrm_shoppingcart.module b/fulcrm_shoppingcart.module
index dd6e930..7208bcb 100644
--- a/fulcrm_shoppingcart.module
+++ b/fulcrm_shoppingcart.module
@@ -33,6 +33,12 @@ function fulcrm_shoppingcart_menu() {
                                         'access callback' => 'user_access',
                                         'access arguments' => array('access content'),
                                         );
+    $items[ 'fulcrm/cart/remove/%/%' ] = array( 'page callback' => 'fulcrm_shoppingcart_remove',
+                                                'page arguments' => array(3,4),
+                                                'type' => MENU_CALLBACK,
+                                                'access callback' => 'user_access',
+                                                'access arguments' => array('access content'),
+                                                );
     $items[ 'fulcrm/cart' ] = array( 'page callback' => 'fulcrm_shoppingcart_cart',
                                      'type' => MENU_CALLBACK,
                                      'access callback' => 'user_access',
@@ -102,6 +108,11 @@ function fulcrm_shoppingcart_buy_url( $product_id ) {
     return url( 'fulcrm/buy/' . $product_id . '/' . $hmac );
 }
 
+function fulcrm_shoppingcart_remove_url( $shoppingitem_id ) {
+    $hmac = fulcrm_crypto_object_id_hmac( 'shoppingitem', $shoppingitem_id );
+    return url( 'fulcrm/cart/remove/' . $shoppingitem_id . '/' . $hmac );
+}
+
 function fulcrm_shoppingcart_buy_eventbookingtype_form_submit( $form, &$form_state ) {
     // $person_d = fulcrm_collection_form_values_to_d( 'person', $form_state[ 'values' ] );
 
@@ -299,6 +310,58 @@ function fulcrm_shoppingcart_buy( $product_id, $hmac ) {
     }
 }
 
+function fulcrm_shoppingcart_remove_shoppingitem_confirm_submit( $form, &$form_state ) {
+    $api_data = fulcrm_apiv2_DELETE( $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ][ 'url' ] );
+
+    if ( $api_data[ 'success' ] )
+        drupal_set_message( t('Removed "%item" from cart.', array( '%item' => ( array_key_exists( 'name', $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ][ 'd' ] ) ? $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ][ 'd' ][ 'name' ] : $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ][ 'product' ][ 'name' ] ) ) ), 'status' );
+
+    $form_state[ 'redirect' ] = 'fulcrm/cart';
+}
+
+
+function fulcrm_shoppingcart_remove_shoppingitem_confirm( $form, &$form_state, $shoppingitem ) {
+    $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ] = $shoppingitem;
+
+    return confirm_form( $form, 
+                         t('Remove from cart?'), 
+                         'fulcrm/cart',
+                         t('Are you sure you want to remove "%item" from your shopping cart?', array( '%item' => ( array_key_exists( 'name', $shoppingitem[ 'd' ] ) ? $shoppingitem[ 'd' ][ 'name' ] : $shoppingitem[ 'product' ][ 'name' ] ) ) ), 
+                         t('Remove'), 
+                         t('Cancel')
+                         );
+}
+
+function fulcrm_shoppingcart_remove( $shoppingitem_id, $hmac ) {
+    if ( fulcrm_crypto_check_object_id_hmac( 'shoppingitem', $shoppingitem_id, $hmac ) ) {
+        $shoppingitem_data = fulcrm_apiv2_GET( 'shoppingitem/' . $shoppingitem_id . '/',
+                                               $query = array( 'expand' => implode( ',', array( 'd',
+                                                                                                'product',
+                                                                                                'content_object',
+                                                                                                'shoppingcart',
+                                                                                                ) ) ) );
+
+        if ( $shoppingitem_data[ 'success' ] ) {
+            if ( $shoppingitem_data[ 'data' ][ 'shoppingcart' ][ 'completed' ] ) {
+                drupal_set_message( t('Shopping cart has been ordered. You can\'t remove things now!'), 'error' );
+                drupal_goto( '<front>' );
+                return;
+            }
+
+            if ( $shoppingitem_data[ 'data' ][ 'shoppingcart' ][ 'abandoned' ] ) {
+                drupal_set_message( t('Sorry, your shopping cart has timed out. Please restart your purchase.'), 'error' );
+                drupal_goto( variable_get( 'fulcrm_shoppingcart_proceed_url', '<front>' ) );
+                return;
+            }
+
+            return drupal_get_form( 'fulcrm_shoppingcart_remove_shoppingitem_confirm', $shoppingitem_data[ 'data' ] );
+        } else {
+            drupal_set_message( t('Cannot remove item: it\'s already gone?'), 'error' );;
+            drupal_goto( 'fulcrm/cart' );
+        }
+    }
+}
+
 function fulcrm_shoppingcart_cart() {
     $cart = fulcrm_shoppingcart_get_session_cart( false );
     return theme( 'fulcrm_shoppingcart_cart', array( 'cart' => $cart ) );
diff --git a/fulcrm_shoppingcart_cart_item.tpl.php b/fulcrm_shoppingcart_cart_item.tpl.php
index 5294029..3f0788d 100644
--- a/fulcrm_shoppingcart_cart_item.tpl.php
+++ b/fulcrm_shoppingcart_cart_item.tpl.php
@@ -1,5 +1,5 @@
 <tr>
-    <td><span class="pull-right"><a class="btn btn-xs btn-danger" title="Remove from cart" href=""><span class="glyphicon glyphicon-trash"></span></a></span><?php if ( array_key_exists( 'name', $item[ 'd' ] ) ) print nl2br( check_plain( $item[ 'd' ][ 'name' ] ) ); else print check_plain( $item[ 'product' ][ 'name' ] ); ?></td>
+    <td><span class="pull-right"><a class="btn btn-xs btn-danger" title="Remove from cart" href="<?php print fulcrm_shoppingcart_remove_url( $item[ 'id' ] ); ?>"><span class="glyphicon glyphicon-trash"></span></a></span><?php if ( array_key_exists( 'name', $item[ 'd' ] ) ) print nl2br( check_plain( $item[ 'd' ][ 'name' ] ) ); else print check_plain( $item[ 'product' ][ 'name' ] ); ?></td>
     <td class="text-right"><?php print check_plain( $item[ 'product' ][ '_price' ][ 'format_total_net' ] ); ?></td>
     <td class="text-right"><?php print check_plain( $item[ 'quantity' ] ); ?></td>
 </tr>