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packagescart.php
312 lines
| 1 | <?php |
| 2 | /** |
| 3 | * @package VikAppointments |
| 4 | * @subpackage core |
| 5 | * @author E4J s.r.l. |
| 6 | * @copyright Copyright (C) 2021 E4J s.r.l. All Rights Reserved. |
| 7 | * @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL |
| 8 | * @link https://vikwp.com |
| 9 | */ |
| 10 | |
| 11 | // No direct access |
| 12 | defined('ABSPATH') or die('No script kiddies please!'); |
| 13 | |
| 14 | VAPLoader::import('libraries.mvc.model'); |
| 15 | // load cart framework |
| 16 | VikAppointments::loadCartPackagesLibrary(); |
| 17 | |
| 18 | /** |
| 19 | * VikAppointments packages cart model. |
| 20 | * |
| 21 | * @since 1.7 |
| 22 | */ |
| 23 | class VikAppointmentsModelPackagescart extends JModelVAP |
| 24 | { |
| 25 | /** |
| 26 | * Registers a new package within the cart. |
| 27 | * |
| 28 | * @param mixed $data Either an array or an object holding |
| 29 | * the package details. |
| 30 | * |
| 31 | * @return mixed The added item on success, false otherwise. |
| 32 | */ |
| 33 | public function addItem($data) |
| 34 | { |
| 35 | $data = (array) $data; |
| 36 | |
| 37 | $dispatcher = VAPFactory::getEventDispatcher(); |
| 38 | |
| 39 | // load package details |
| 40 | $package = JModelVAP::getInstance('package')->getItem($data['id']); |
| 41 | |
| 42 | if (!$package) |
| 43 | { |
| 44 | // the specified package doesn't exist |
| 45 | $this->setError(JText::translate('VAPPACKNOTFOUNDERR')); |
| 46 | return false; |
| 47 | } |
| 48 | |
| 49 | // get cart instance |
| 50 | $cart = $this->getCart(); |
| 51 | |
| 52 | // create cart item instance |
| 53 | $item = new VAPCartPackagesItem($package->id, $package->name, $package->price, $package->num_app); |
| 54 | |
| 55 | // junk variable used by plugins to set custom errors |
| 56 | $err = ''; |
| 57 | |
| 58 | /** |
| 59 | * Trigger event before adding an item into the cart. |
| 60 | * |
| 61 | * @param mixed $cart The cart instance. |
| 62 | * @param mixed $item The cart item object. |
| 63 | * @param string &$err String used to raise custom errors. |
| 64 | * |
| 65 | * @return boolean False to avoid adding the item. |
| 66 | * |
| 67 | * @since 1.7 |
| 68 | */ |
| 69 | if ($dispatcher->not('onAddPackageItemCart', array($cart, $item, &$err))) |
| 70 | { |
| 71 | // Avoid pushing the item into the cart in case at least a plugin |
| 72 | // returns a negative value. If no plugin is attached to this event, |
| 73 | // the item will be added correctly. |
| 74 | $this->setError($err ? $err : JText::translate('ERROR')); |
| 75 | return false; |
| 76 | } |
| 77 | |
| 78 | // try to add the item into the cart |
| 79 | $res = $cart->addPackage($item); |
| 80 | |
| 81 | // check package integrity on cart |
| 82 | if (!$res) |
| 83 | { |
| 84 | // we probably reached the maximum cart limit |
| 85 | $this->setError(JText::translate('VAPCARTPACKADDERR')); |
| 86 | return false; |
| 87 | } |
| 88 | |
| 89 | // save cart data |
| 90 | $cart->store(); |
| 91 | |
| 92 | // search the item inside the cart because the element might have been |
| 93 | // updated an existing record |
| 94 | return $cart->getPackageAt($cart->indexOf($item->getID())); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Decreases the units of the specified package. |
| 99 | * |
| 100 | * @param mixed $data Either an array or an object holding |
| 101 | * the package details. |
| 102 | * |
| 103 | * @return boolean True on success, false otherwise. |
| 104 | */ |
| 105 | public function removeItem($data) |
| 106 | { |
| 107 | $data = (array) $data; |
| 108 | |
| 109 | $dispatcher = VAPFactory::getEventDispatcher(); |
| 110 | |
| 111 | // get cart handler |
| 112 | $cart = $this->getCart(); |
| 113 | |
| 114 | /** |
| 115 | * Trigger event before detaching a package from the cart. |
| 116 | * |
| 117 | * @param mixed $cart The cart instance. |
| 118 | * @param integer $id_package The package ID. |
| 119 | * |
| 120 | * @return boolean False to avoid detaching the option. |
| 121 | * |
| 122 | * @since 1.7 |
| 123 | */ |
| 124 | if ($dispatcher->not('onRemovePackageItemCart', array($cart, $data['id']))) |
| 125 | { |
| 126 | // Avoid detaching the option from the item in case at least a plugin |
| 127 | // returns a negative value. If no plugin is attached to this event, |
| 128 | // the option will be detached correctly. |
| 129 | |
| 130 | $this->setError(JText::translate('VAPCARTOPTDELERR')); |
| 131 | return false; |
| 132 | } |
| 133 | |
| 134 | // validate units to decrease |
| 135 | $units = isset($data['units']) ? $data['units'] : 1; |
| 136 | // try to delete the option |
| 137 | $res = $cart->removePackage($data['id'], $units); |
| 138 | |
| 139 | if (!$res) |
| 140 | { |
| 141 | // unable to delete the package |
| 142 | $this->setError(JText::translate('VAPPACKNOTFOUNDERR')); |
| 143 | return false; |
| 144 | } |
| 145 | |
| 146 | // revalidate coupon code |
| 147 | $this->revalidateCoupon(); |
| 148 | |
| 149 | // save changes |
| 150 | $cart->store(); |
| 151 | |
| 152 | return true; |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Removes all the packages from the cart. |
| 157 | * |
| 158 | * @return void |
| 159 | */ |
| 160 | public function emptyCart() |
| 161 | { |
| 162 | $dispatcher = VAPFactory::getEventDispatcher(); |
| 163 | |
| 164 | // get cart handler |
| 165 | $cart = $this->getCart(); |
| 166 | |
| 167 | /** |
| 168 | * Trigger event before flushing the cart. |
| 169 | * |
| 170 | * @param mixed $cart The cart instance. |
| 171 | * |
| 172 | * @return void |
| 173 | * |
| 174 | * @since 1.7 |
| 175 | */ |
| 176 | $dispatcher->not('onEmptyPackagesCart', array($cart)); |
| 177 | |
| 178 | // flush the cart |
| 179 | $cart->emptyCart(); |
| 180 | |
| 181 | // revalidate coupon code |
| 182 | $this->revalidateCoupon(); |
| 183 | |
| 184 | // apply the changes |
| 185 | $cart->store(); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Helper method used to redeem the specified coupon code. |
| 190 | * |
| 191 | * @param mixed $coupon Either the coupon details or its code. |
| 192 | * |
| 193 | * @return boolean True on success, false otherwise. |
| 194 | */ |
| 195 | public function redeemCoupon($coupon) |
| 196 | { |
| 197 | if (empty($coupon)) |
| 198 | { |
| 199 | // coupon code not specified |
| 200 | $this->setError(JText::translate('VAPCOUPONNOTVALID')); |
| 201 | return false; |
| 202 | } |
| 203 | |
| 204 | if (is_string($coupon)) |
| 205 | { |
| 206 | // get model to load coupon details |
| 207 | $couponModel = JModelVAP::getInstance('coupon'); |
| 208 | $coupon = $couponModel->getCoupon($coupon); |
| 209 | |
| 210 | if (!$coupon) |
| 211 | { |
| 212 | // coupon not found in database |
| 213 | $this->setError(JText::translate('VAPCOUPONNOTVALID')); |
| 214 | return false; |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | // get cart instance |
| 219 | $cart = $this->getCart(); |
| 220 | |
| 221 | // validate the coupon code |
| 222 | if (!VikAppointments::validatePackagesCoupon($coupon, $cart)) |
| 223 | { |
| 224 | // cannot apply the coupon code |
| 225 | $this->setError(JText::translate('VAPCOUPONNOTVALID')); |
| 226 | return false; |
| 227 | } |
| 228 | |
| 229 | // coupon valid, create discount object |
| 230 | $discount = new VAPCartDiscount('coupon', $coupon->value, $coupon->percentot == 1); |
| 231 | // register coupon data for later use |
| 232 | $discount->set('couponData', $coupon); |
| 233 | |
| 234 | // apply discount, by replacing any other coupon discount previously set |
| 235 | $cart->setDiscount($discount); |
| 236 | // commit cart changes |
| 237 | $cart->store(); |
| 238 | |
| 239 | return true; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Revalidates the internal coupon code, since the cart might be no more |
| 244 | * compliant with the coupon restrictions after some changes. |
| 245 | * |
| 246 | * @param boolean $store True to commit the changes. |
| 247 | * |
| 248 | * @return boolean True in case of valid coupon, false otherwise. |
| 249 | */ |
| 250 | public function revalidateCoupon($store = false) |
| 251 | { |
| 252 | // get cart instance |
| 253 | $cart = $this->getCart(); |
| 254 | // get coupon discount, if any |
| 255 | $discount = $cart->getDiscount('coupon'); |
| 256 | |
| 257 | if (!$discount) |
| 258 | { |
| 259 | // coupon discount not set |
| 260 | return false; |
| 261 | } |
| 262 | |
| 263 | // extract coupon data |
| 264 | $coupon = $discount->get('couponData'); |
| 265 | |
| 266 | // try to redeem the coupon code |
| 267 | $res = $this->redeemCoupon($coupon); |
| 268 | |
| 269 | if (!$res) |
| 270 | { |
| 271 | // coupon no more valid, unset it |
| 272 | $cart->removeDiscount($discount); |
| 273 | |
| 274 | if ($store) |
| 275 | { |
| 276 | // commit changes |
| 277 | $cart->store(); |
| 278 | } |
| 279 | |
| 280 | return false; |
| 281 | } |
| 282 | |
| 283 | // coupon still valid |
| 284 | return true; |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * Helper method used to obtain an instance of the cart. |
| 289 | * |
| 290 | * @return VAPCartPackages |
| 291 | */ |
| 292 | public function getCart() |
| 293 | { |
| 294 | static $cart = null; |
| 295 | |
| 296 | if (!$cart) |
| 297 | { |
| 298 | // load cart instance |
| 299 | $cart = VAPCartPackages::getInstance(); |
| 300 | |
| 301 | $config = VAPFactory::getConfig(); |
| 302 | |
| 303 | // set cart configuration |
| 304 | $cart->setParams(array( |
| 305 | VAPCartPackages::MAX_SIZE => $config->getInt('maxpackscart'), |
| 306 | )); |
| 307 | } |
| 308 | |
| 309 | return $cart; |
| 310 | } |
| 311 | } |
| 312 |