1:   2:   3:   4:   5:   6:   7:   8:   9:  10:  11:  12:  13:  14:  15:  16:  17:  18:  19:  20:  21:  22:  23:  24:  25:  26:  27:  28:  29:  30:  31:  32:  33:  34:  35:  36:  37:  38:  39:  40:  41:  42:  43:  44:  45:  46:  47:  48:  49:  50:  51:  52:  53:  54:  55:  56:  57:  58:  59:  60:  61:  62:  63:  64:  65:  66:  67:  68:  69:  70:  71:  72:  73:  74:  75:  76:  77:  78:  79:  80:  81:  82:  83:  84:  85:  86:  87:  88:  89:  90:  91:  92:  93:  94:  95:  96:  97:  98:  99: 100: 101: 102: 103: 104: 105: 106: 107: 108: 109: 110: 111: 112: 113: 114: 115: 116: 117: 118: 119: 120: 121: 122: 123: 124: 125: 126: 127: 128: 129: 130: 131: 132: 133: 134: 135: 136: 137: 138: 139: 140: 141: 142: 143: 144: 145: 146: 147: 148: 149: 150: 151: 152: 153: 154: 155: 156: 157: 158: 159: 160: 161: 162: 163: 164: 165: 166: 167: 168: 169: 170: 171: 172: 173: 174: 175: 176: 177: 178: 179: 180: 181: 182: 183: 184: 185: 186: 187: 188: 189: 190: 191: 192: 193: 194: 195: 196: 197: 198: 199: 200: 201: 202: 203: 204: 205: 206: 207: 208: 209: 210: 211: 212: 213: 214: 215: 216: 217: 218: 219: 220: 221: 222: 223: 224: 225: 226: 227: 228: 229: 230: 231: 232: 233: 234: 235: 236: 237: 238: 239: 240: 241: 242: 243: 244: 245: 246: 247: 248: 249: 250: 251: 252: 253: 254: 255: 256: 257: 258: 259: 260: 261: 262: 263: 264: 265: 266: 267: 268: 269: 270: 271: 272: 273: 274: 275: 276: 277: 278: 279: 280: 281: 282: 283: 284: 285: 286: 287: 288: 289: 290: 291: 292: 293: 294: 295: 296: 297: 298: 299: 300: 301: 302: 303: 304: 305: 306: 307: 308: 309: 310: 311: 312: 313: 314: 315: 316: 317: 318: 319: 320: 321: 322: 323: 324: 325: 326: 327: 328: 329: 330: 331: 332: 333: 334: 335: 336: 337: 338: 339: 340: 341: 342: 343: 344: 345: 346: 347: 348: 349: 350: 351: 352: 353: 354: 355: 356: 357: 358: 359: 360: 361: 362: 363: 364: 365: 366: 367: 368: 369: 370: 371: 372: 373: 374: 375: 376: 377: 378: 379: 380: 381: 382: 383: 384: 385: 386: 387: 388: 389: 390: 391: 392: 393: 394: 395: 396: 397: 398: 399: 400: 401: 402: 403: 404: 405: 406: 407: 408: 409: 410: 411: 412: 413: 414: 415: 416: 417: 418: 419: 420: 421: 422: 423: 424: 

<?php

    namespace Inteve\FeedGenerator\Feeds\GoogleMerchant;

    use Inteve\FeedGenerator\AssertException;
    use Inteve\FeedGenerator\IFeedItem;
    use Inteve\FeedGenerator\InvalidArgumentException;
    use Inteve\FeedGenerator\Utils\Helpers;
    use Nette\Utils\Validators;


    class GoogleMerchantItem implements IFeedItem
    {
        const AVAILABILITY_IN_STOCK = 'in stock';
        const AVAILABILITY_OUT_OF_STOCK = 'out of stock';
        const AVAILABILITY_PREORDER = 'preorder';

        const CONDITION_NEW = 'new';
        const CONDITION_REFURBISHED = 'refurbished';
        const CONDITION_USED = 'used';

        const GENDER_MALE = 'male';
        const GENDER_FEMALE = 'female';
        const GENDER_UNISEX = 'unisex';

        /** @var string|int */
        private $id;

        /** @var string */
        private $title;

        /** @var string */
        private $description;

        /** @var string|NULL */
        private $url;

        /** @var string|NULL */
        private $imageUrl;

        /** @var string */
        private $availability = self::AVAILABILITY_IN_STOCK;

        /** @var string|NULL */
        private $price;

        /** @var string */
        private $condition = self::CONDITION_NEW;

        /** @var bool */
        private $adult = FALSE;

        /** @var string|NULL */
        private $color;

        /** @var string|NULL */
        private $gender;

        /** @var string|NULL */
        private $size;

        /** @var string|NULL */
        private $groupId;

        /** @var string|NULL */
        private $shipping;

        /** @var string|NULL */
        private $shippingLabel;


        /**
         * @return string|int
         */
        public function getId()
        {
            return $this->id;
        }


        /**
         * @param  string|int
         * @return self
         */
        public function setId($id)
        {
            $this->id = $id;
            return $this;
        }


        /**
         * @return string
         */
        public function getTitle()
        {
            return $this->title;
        }


        /**
         * @param  string|int
         * @return self
         */
        public function setTitle($title)
        {
            $this->title = $title;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getDescription()
        {
            return $this->description;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setDescription($description)
        {
            $this->description = $description;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getUrl()
        {
            return $this->url;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setUrl($url)
        {
            $this->url = $url;
            return $this;
        }



        /**
         * @return string|NULL
         */
        public function getImageUrl()
        {
            return $this->imageUrl;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setImageUrl($imageUrl)
        {
            $this->imageUrl = $imageUrl;
            return $this;
        }


        /**
         * @return string
         */
        public function getAvailability()
        {
            return $this->availability;
        }


        /**
         * @param  string
         * @return self
         */
        public function setAvailability($availability)
        {
            if (!in_array($availability, array(self::AVAILABILITY_IN_STOCK, self::AVAILABILITY_OUT_OF_STOCK, self::AVAILABILITY_PREORDER), TRUE)) {
                throw new InvalidArgumentException("Invalid availability '{$availability}'.");
            }
            $this->availability = $availability;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getPrice()
        {
            return $this->price;
        }


        /**
         * @param  float|string|int
         * @param  string
         * @return self
         */
        public function setPrice($price, $currency)
        {
            $this->price = $this->formatPrice($price, $currency);
            return $this;
        }


        /**
         * @return string
         */
        public function getCondition()
        {
            return $this->condition;
        }


        /**
         * @param  string
         * @return self
         */
        public function setCondition($condition)
        {
            if (!in_array($condition, array(self::CONDITION_NEW, self::CONDITION_REFURBISHED, self::CONDITION_USED), TRUE)) {
                throw new InvalidArgumentException("Invalid condition '{$condition}'.");
            }

            $this->condition = $condition;
            return $this;
        }


        /**
         * @return bool
         */
        public function isAdult()
        {
            return $this->adult;
        }


        /**
         * @param  bool
         * @return self
         */
        public function setAdult($adult)
        {
            $this->adult = $adult;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getColor()
        {
            return $this->color;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setColor($color)
        {
            $this->color = $color;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getGender()
        {
            return $this->gender;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setGender($gender)
        {
            $this->gender = $gender;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getSize()
        {
            return $this->size;
        }


        /**
         * @param  string|NULL
         * @return self
         */
        public function setSize($size)
        {
            $this->size = $size;
            return $this;
        }


        /**
         * @return string
         */
        public function getGroupId()
        {
            return $this->groupId;
        }


        /**
         * @param  string
         * @return self
         */
        public function setGroupId($groupId)
        {
            $this->groupId = $groupId;
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getShipping()
        {
            return $this->shipping;
        }


        /**
         * @param  string
         * @return self
         */
        public function setShipping($price, $currency)
        {
            $this->shipping = $this->formatPrice($price, $currency);
            return $this;
        }


        /**
         * @return string|NULL
         */
        public function getShippingLabel()
        {
            return $this->shippingLabel;
        }


        /**
         * @param  string
         * @return self
         */
        public function setShippingLabel($shippingLabel)
        {
            $this->shippingLabel = $shippingLabel;
            return $this;
        }


        /**
         * @return bool
         */
        public function hasIdentifiers()
        {
            return FALSE;
        }


        /**
         * @return void
         * @throws AssertException
         */
        public function validate()
        {
            Helpers::assert(isset($this->id), 'Missing item ID, call $item->setId().');
            Helpers::assert(isset($this->title), 'Missing item title, call $item->setTitle().');
            Helpers::assert(isset($this->description), 'Missing item description, call $item->setDescription().');
            Helpers::assert(isset($this->url), 'Missing item URL, call $item->setUrl().');
            Helpers::assert(isset($this->imageUrl), 'Missing item image URL, call $item->setImageUrl().');
            Helpers::assert(isset($this->price), 'Missing item price, call $item->setPrice().');
        }


        /**
         * @param  string|float|int
         * @param  string
         * @return string
         */
        protected function formatPrice($price, $currency)
        {
            return number_format($price, 2, '.', '') . ' ' . $currency;
        }


        /**
         * @return static
         */
        public static function create()
        {
            return new static;
        }
    }