/**
* manage the home section suggestions
* @param [string] $type, which is the reference point to build the suggest
* @return [json] $suggest, that contain the products list to be displayed on home page
*/
public static function suggest($type, $limit = 4)
{
$data = [];
switch ($type) {
case 'purchased':
$data['preferences_key'] = 'product_purchased';
$data['limit'] = $limit;
break;
case 'categories':
$data['preferences_key'] = 'product_categories';
$data['limit'] = $limit;
$usr_prefe = UserController::getPreferences('', $data['preferences_key']);
//look up for user preferences
if (count($usr_prefe['tags']) == 0) {
$data['category'] = ProductsController::getRandCategoryId();
//if there is not info, we get a rand category id
} else {
$data['category'] = $usr_prefe['tags'][mt_rand(0, count($usr_prefe['tags']) - 1)];
//if so, we get a rand user preferences category
}
break;
case 'viewed':
$data['preferences_key'] = 'product_viewed';
$data['limit'] = $limit;
break;
case 'carousel':
return ProductsController::getTopRated(0, $limit, false);
break;
default:
$data['limit'] = $limit;
$data['preferences_key'] = '';
break;
}
$suggest = ProductsController::getSuggestions($data);
//suggestion array
return $suggest;
}
/**
* To get the products suggestion, taking in account either the preference key, such as
* (product_viewed, product_purchased, product_shared, product_categories, my_searches), or all of them.
*
* @param [array] $data, which is the suggest configuration
*
* @return [array] $products, which will contain all the suggestion for the user either in session or suggested
*/
public static function getSuggestions($data)
{
$options = ['user_id' => '', 'preferences_key' => '', 'limit' => '4', 'category' => '', 'select' => '*'];
$suggest_listed = Session::get('suggest-listed');
if (count($suggest_listed)) {
$suggest_listed = array_unique($suggest_listed);
} else {
$suggest_listed = [];
}
$data = $data + $options;
$diff = 0;
$productsHelper = new ProductsHelper();
$needle['tags'] = [];
// the suggestions based on one id (one product)
if (is_int($data['preferences_key'])) {
$data['preferences_key'] = [$data['preferences_key']];
}
// the suggestions based on a list of products
if (is_array($data['preferences_key'])) {
foreach ($data['preferences_key'] as $id) {
$needleAux = Product::select('tags', 'name')->where('id', $id)->free()->orderBy('rate_count', 'desc')->first()->toArray();
//extraction of tags and name of products
$needle['tags'] = array_merge($needle['tags'], explode(',', trim($needleAux['tags'])), explode(' ', trim($needleAux['name'])));
}
} else {
$needle = UserController::getPreferences($data['preferences_key']);
//getting the user preferences
}
if (count($needle['tags']) > 0) {
//by preferences
if ($data['preferences_key'] == 'product_categories') {
//look up by categories. If we want to get a specific category, we have to add "category" to data array
\DB::enableQueryLog();
$products[0] = Product::select($data['select'])->free()->whereNotIn('id', $suggest_listed)->inCategories('category_id', $needle['tags'])->orderBy('rate_count', 'desc')->take($data['limit'])->get()->toArray();
} else {
//look up by products tags and name
$products[0] = Product::select($data['select'])->free()->whereNotIn('id', $suggest_listed)->like(['tags', 'name'], $needle['tags'])->orderBy('rate_count', 'desc')->take($data['limit'])->get()->toArray();
}
}
$diff = $data['limit'] - (isset($products[0]) ? count($products[0]) : 0);
//limit control
//if we get suggestion results, we save those id
if (isset($products[0])) {
$productsHelper->setToHaystack($products[0]);
}
//by rate
if ($diff > 0 && $diff <= $data['limit']) {
$products[1] = Product::select($data['select'])->where($productsHelper->getFieldToSuggestions($data['preferences_key']), '>', '0')->whereNotIn('id', $suggest_listed)->free()->orderBy($productsHelper->getFieldToSuggestions($data['preferences_key']), 'DESC')->take($diff)->get()->toArray();
$diff = $diff - count($products[1]);
//limit control
}
//if we get suggestion results, we save those id
if (isset($products[1])) {
$productsHelper->setToHaystack($products[1]);
}
//by rand
if ($diff > 0 && $diff <= $data['limit']) {
$products[2] = Product::select($data['select'])->free()->whereNotIn('id', $suggest_listed)->orderByRaw('RAND()')->take($diff)->get()->toArray();
}
//if we get suggestion results, we save those id
if (isset($products[2])) {
$productsHelper->setToHaystack($products[2]);
}
//making one array to return
$array = [];
$products = array_values($products);
for ($i = 0; $i < count($products); $i++) {
if (count($products[$i]) > 0) {
$array = array_merge($array, $products[$i]);
}
}
return $array;
}