first commit

libraries/vendor/tobscure/json-api/src/AbstractSerializer.php

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+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+use LogicException;
+
+abstract class AbstractSerializer implements SerializerInterface
+{
+    /**
+     * The type.
+     *
+     * @var string
+     */
+    protected $type;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getType($model)
+    {
+        return $this->type;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId($model)
+    {
+        return $model->id;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAttributes($model, array $fields = null)
+    {
+        return [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getLinks($model)
+    {
+        return [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMeta($model)
+    {
+        return [];
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws \LogicException
+     */
+    public function getRelationship($model, $name)
+    {
+        $method = $this->getRelationshipMethodName($name);
+
+        if (method_exists($this, $method)) {
+            $relationship = $this->$method($model);
+
+            if ($relationship !== null && ! ($relationship instanceof Relationship)) {
+                throw new LogicException('Relationship method must return null or an instance of Tobscure\JsonApi\Relationship');
+            }
+
+            return $relationship;
+        }
+    }
+
+    /**
+     * Get the serializer method name for the given relationship.
+     *
+     * snake_case and kebab-case are converted into camelCase.
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    private function getRelationshipMethodName($name)
+    {
+        if (stripos($name, '-')) {
+            $name = lcfirst(implode('', array_map('ucfirst', explode('-', $name))));
+        }
+
+        if (stripos($name, '_')) {
+            $name = lcfirst(implode('', array_map('ucfirst', explode('_', $name))));
+        }
+
+        return $name;
+    }
+}

libraries/vendor/tobscure/json-api/src/Collection.php

@@ -0,0 +1,126 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+class Collection implements ElementInterface
+{
+    /**
+     * @var array
+     */
+    protected $resources = [];
+
+    /**
+     * Create a new collection instance.
+     *
+     * @param mixed $data
+     * @param \Tobscure\JsonApi\SerializerInterface $serializer
+     */
+    public function __construct($data, SerializerInterface $serializer)
+    {
+        $this->resources = $this->buildResources($data, $serializer);
+    }
+
+    /**
+     * Convert an array of raw data to Resource objects.
+     *
+     * @param mixed $data
+     * @param SerializerInterface $serializer
+     *
+     * @return \Tobscure\JsonApi\Resource[]
+     */
+    protected function buildResources($data, SerializerInterface $serializer)
+    {
+        $resources = [];
+
+        foreach ($data as $resource) {
+            if (! ($resource instanceof Resource)) {
+                $resource = new Resource($resource, $serializer);
+            }
+
+            $resources[] = $resource;
+        }
+
+        return $resources;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getResources()
+    {
+        return $this->resources;
+    }
+
+    /**
+     * Set the resources array.
+     *
+     * @param array $resources
+     *
+     * @return void
+     */
+    public function setResources($resources)
+    {
+        $this->resources = $resources;
+    }
+
+    /**
+     * Request a relationship to be included for all resources.
+     *
+     * @param string|array $relationships
+     *
+     * @return $this
+     */
+    public function with($relationships)
+    {
+        foreach ($this->resources as $resource) {
+            $resource->with($relationships);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Request a restricted set of fields.
+     *
+     * @param array|null $fields
+     *
+     * @return $this
+     */
+    public function fields($fields)
+    {
+        foreach ($this->resources as $resource) {
+            $resource->fields($fields);
+        }
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toArray()
+    {
+        return array_map(function (Resource $resource) {
+            return $resource->toArray();
+        }, $this->resources);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toIdentifier()
+    {
+        return array_map(function (Resource $resource) {
+            return $resource->toIdentifier();
+        }, $this->resources);
+    }
+}

libraries/vendor/tobscure/json-api/src/Document.php

@@ -0,0 +1,234 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+use JsonSerializable;
+
+class Document implements JsonSerializable
+{
+    use LinksTrait;
+    use MetaTrait;
+
+    const MEDIA_TYPE = 'application/vnd.api+json';
+
+    /**
+     * The included array.
+     *
+     * @var array
+     */
+    protected $included = [];
+
+    /**
+     * The errors array.
+     *
+     * @var array
+     */
+    protected $errors;
+
+    /**
+     * The jsonapi array.
+     *
+     * @var array
+     */
+    protected $jsonapi;
+
+    /**
+     * The data object.
+     *
+     * @var ElementInterface
+     */
+    protected $data;
+
+    /**
+     * @param ElementInterface $data
+     */
+    public function __construct(ElementInterface $data = null)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * Get included resources.
+     *
+     * @param \Tobscure\JsonApi\ElementInterface $element
+     * @param bool $includeParent
+     *
+     * @return \Tobscure\JsonApi\Resource[]
+     */
+    protected function getIncluded(ElementInterface $element, $includeParent = false)
+    {
+        $included = [];
+
+        foreach ($element->getResources() as $resource) {
+            if ($resource->isIdentifier()) {
+                continue;
+            }
+
+            if ($includeParent) {
+                $included = $this->mergeResource($included, $resource);
+            } else {
+                $type = $resource->getType();
+                $id = $resource->getId();
+            }
+
+            foreach ($resource->getUnfilteredRelationships() as $relationship) {
+                $includedElement = $relationship->getData();
+
+                if (! $includedElement instanceof ElementInterface) {
+                    continue;
+                }
+
+                foreach ($this->getIncluded($includedElement, true) as $child) {
+                    // If this resource is the same as the top-level "data"
+                    // resource, then we don't want it to show up again in the
+                    // "included" array.
+                    if (! $includeParent && $child->getType() === $type && $child->getId() === $id) {
+                        continue;
+                    }
+
+                    $included = $this->mergeResource($included, $child);
+                }
+            }
+        }
+
+        $flattened = [];
+
+        array_walk_recursive($included, function ($a) use (&$flattened) {
+            $flattened[] = $a;
+        });
+
+        return $flattened;
+    }
+
+    /**
+     * @param \Tobscure\JsonApi\Resource[] $resources
+     * @param \Tobscure\JsonApi\Resource $newResource
+     *
+     * @return \Tobscure\JsonApi\Resource[]
+     */
+    protected function mergeResource(array $resources, Resource $newResource)
+    {
+        $type = $newResource->getType();
+        $id = $newResource->getId();
+
+        if (isset($resources[$type][$id])) {
+            $resources[$type][$id]->merge($newResource);
+        } else {
+            $resources[$type][$id] = $newResource;
+        }
+
+        return $resources;
+    }
+
+    /**
+     * Set the data object.
+     *
+     * @param \Tobscure\JsonApi\ElementInterface $element
+     *
+     * @return $this
+     */
+    public function setData(ElementInterface $element)
+    {
+        $this->data = $element;
+
+        return $this;
+    }
+
+    /**
+     * Set the errors array.
+     *
+     * @param array $errors
+     *
+     * @return $this
+     */
+    public function setErrors($errors)
+    {
+        $this->errors = $errors;
+
+        return $this;
+    }
+
+    /**
+     * Set the jsonapi array.
+     *
+     * @param array $jsonapi
+     *
+     * @return $this
+     */
+    public function setJsonapi($jsonapi)
+    {
+        $this->jsonapi = $jsonapi;
+
+        return $this;
+    }
+
+    /**
+     * Map everything to arrays.
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        $document = [];
+
+        if (! empty($this->links)) {
+            $document['links'] = $this->links;
+        }
+
+        if (! empty($this->data)) {
+            $document['data'] = $this->data->toArray();
+
+            $resources = $this->getIncluded($this->data);
+
+            if (count($resources)) {
+                $document['included'] = array_map(function (Resource $resource) {
+                    return $resource->toArray();
+                }, $resources);
+            }
+        }
+
+        if (! empty($this->meta)) {
+            $document['meta'] = $this->meta;
+        }
+
+        if (! empty($this->errors)) {
+            $document['errors'] = $this->errors;
+        }
+
+        if (! empty($this->jsonapi)) {
+            $document['jsonapi'] = $this->jsonapi;
+        }
+
+        return $document;
+    }
+
+    /**
+     * Map to string.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return json_encode($this->toArray());
+    }
+
+    /**
+     * Serialize for JSON usage.
+     *
+     * @return array
+     */
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        return $this->toArray();
+    }
+}

libraries/vendor/tobscure/json-api/src/ElementInterface.php

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+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+interface ElementInterface
+{
+    /**
+     * Get the resources array.
+     *
+     * @return array
+     */
+    public function getResources();
+
+    /**
+     * Map to a "resource object" array.
+     *
+     * @return array
+     */
+    public function toArray();
+
+    /**
+     * Map to a "resource object identifier" array.
+     *
+     * @return array
+     */
+    public function toIdentifier();
+
+    /**
+     * Request a relationship to be included.
+     *
+     * @param string|array $relationships
+     *
+     * @return $this
+     */
+    public function with($relationships);
+
+    /**
+     * Request a restricted set of fields.
+     *
+     * @param array|null $fields
+     *
+     * @return $this
+     */
+    public function fields($fields);
+}

libraries/vendor/tobscure/json-api/src/ErrorHandler.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+use Exception;
+use RuntimeException;
+use Tobscure\JsonApi\Exception\Handler\ExceptionHandlerInterface;
+
+class ErrorHandler
+{
+    /**
+     * Stores the valid handlers.
+     *
+     * @var \Tobscure\JsonApi\Exception\Handler\ExceptionHandlerInterface[]
+     */
+    private $handlers = [];
+
+    /**
+     * Handle the exception provided.
+     *
+     * @param Exception $e
+     *
+     * @throws RuntimeException
+     *
+     * @return \Tobscure\JsonApi\Exception\Handler\ResponseBag
+     */
+    public function handle(Exception $e)
+    {
+        foreach ($this->handlers as $handler) {
+            if ($handler->manages($e)) {
+                return $handler->handle($e);
+            }
+        }
+
+        throw new RuntimeException('Exception handler for '.get_class($e).' not found.');
+    }
+
+    /**
+     * Register a new exception handler.
+     *
+     * @param \Tobscure\JsonApi\Exception\Handler\ExceptionHandlerInterface $handler
+     *
+     * @return void
+     */
+    public function registerHandler(ExceptionHandlerInterface $handler)
+    {
+        $this->handlers[] = $handler;
+    }
+}

libraries/vendor/tobscure/json-api/src/Exception/Handler/ExceptionHandlerInterface.php

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+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi\Exception\Handler;
+
+use Exception;
+
+interface ExceptionHandlerInterface
+{
+    /**
+     * If the exception handler is able to format a response for the provided exception,
+     * then the implementation should return true.
+     *
+     * @param \Exception $e
+     *
+     * @return bool
+     */
+    public function manages(Exception $e);
+
+    /**
+     * Handle the provided exception.
+     *
+     * @param \Exception $e
+     *
+     * @return \Tobscure\JsonApi\Exception\Handler\ResponseBag
+     */
+    public function handle(Exception $e);
+}

libraries/vendor/tobscure/json-api/src/Exception/Handler/FallbackExceptionHandler.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi\Exception\Handler;
+
+use Exception;
+
+class FallbackExceptionHandler implements ExceptionHandlerInterface
+{
+    /**
+     * @var bool
+     */
+    private $debug;
+
+    /**
+     * @param bool $debug
+     */
+    public function __construct($debug)
+    {
+        $this->debug = $debug;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function manages(Exception $e)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(Exception $e)
+    {
+        $status = 500;
+        $error = $this->constructError($e, $status);
+
+        return new ResponseBag($status, [$error]);
+    }
+
+    /**
+     * @param \Exception $e
+     * @param $status
+     *
+     * @return array
+     */
+    private function constructError(Exception $e, $status)
+    {
+        $error = ['code' => $status, 'title' => 'Internal server error'];
+
+        if ($this->debug) {
+            $error['detail'] = (string) $e;
+        }
+
+        return $error;
+    }
+}

libraries/vendor/tobscure/json-api/src/Exception/Handler/InvalidParameterExceptionHandler.php

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+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi\Exception\Handler;
+
+use Exception;
+use Tobscure\JsonApi\Exception\InvalidParameterException;
+
+class InvalidParameterExceptionHandler implements ExceptionHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function manages(Exception $e)
+    {
+        return $e instanceof InvalidParameterException;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(Exception $e)
+    {
+        $status = 400;
+        $error = [];
+
+        $code = $e->getCode();
+        if ($code) {
+            $error['code'] = $code;
+        }
+
+        $invalidParameter = $e->getInvalidParameter();
+        if ($invalidParameter) {
+            $error['source'] = ['parameter' => $invalidParameter];
+        }
+
+        return new ResponseBag($status, [$error]);
+    }
+}

libraries/vendor/tobscure/json-api/src/Exception/Handler/ResponseBag.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi\Exception\Handler;
+
+/**
+ * DTO to manage JSON error response handling.
+ */
+class ResponseBag
+{
+    private $status;
+    private $errors;
+
+    /**
+     * @param int $status
+     * @param array $errors
+     */
+    public function __construct($status, array $errors)
+    {
+        $this->status = $status;
+        $this->errors = $errors;
+    }
+
+    /**
+     * @return array
+     */
+    public function getErrors()
+    {
+        return $this->errors;
+    }
+
+    /**
+     * @return int
+     */
+    public function getStatus()
+    {
+        return $this->status;
+    }
+}

libraries/vendor/tobscure/json-api/src/Exception/InvalidParameterException.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi\Exception;
+
+use Exception;
+
+class InvalidParameterException extends Exception
+{
+    /**
+     * @var string The parameter that caused this exception.
+     */
+    private $invalidParameter;
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param string $invalidParameter The parameter that caused this exception.
+     */
+    public function __construct($message = '', $code = 0, $previous = null, $invalidParameter = '')
+    {
+        parent::__construct($message, $code, $previous);
+
+        $this->invalidParameter = $invalidParameter;
+    }
+
+    /**
+     * @return string The parameter that caused this exception.
+     */
+    public function getInvalidParameter()
+    {
+        return $this->invalidParameter;
+    }
+}

libraries/vendor/tobscure/json-api/src/LinksTrait.php

@@ -0,0 +1,135 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+trait LinksTrait
+{
+    /**
+     * The links array.
+     *
+     * @var array
+     */
+    protected $links;
+
+    /**
+     * Get the links.
+     *
+     * @return array
+     */
+    public function getLinks()
+    {
+        return $this->links;
+    }
+
+    /**
+     * Set the links.
+     *
+     * @param array $links
+     *
+     * @return $this
+     */
+    public function setLinks(array $links)
+    {
+        $this->links = $links;
+
+        return $this;
+    }
+
+    /**
+     * Add a link.
+     *
+     * @param string $key
+     * @param string $value
+     *
+     * @return $this
+     */
+    public function addLink($key, $value)
+    {
+        $this->links[$key] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Add pagination links (first, prev, next, and last).
+     *
+     * @param string $url The base URL for pagination links.
+     * @param array $queryParams The query params provided in the request.
+     * @param int $offset The current offset.
+     * @param int $limit The current limit.
+     * @param int|null $total The total number of results, or null if unknown.
+     *
+     * @return void
+     */
+    public function addPaginationLinks($url, array $queryParams, $offset, $limit, $total = null)
+    {
+        if (isset($queryParams['page']['number'])) {
+            $offset = floor($offset / $limit) * $limit;
+        }
+
+        $this->addPaginationLink('first', $url, $queryParams, 0, $limit);
+
+        if ($offset > 0) {
+            $this->addPaginationLink('prev', $url, $queryParams, max(0, $offset - $limit), $limit);
+        }
+
+        if ($total === null || $offset + $limit < $total) {
+            $this->addPaginationLink('next', $url, $queryParams, $offset + $limit, $limit);
+        }
+
+        if ($total) {
+            $this->addPaginationLink('last', $url, $queryParams, floor(($total - 1) / $limit) * $limit, $limit);
+        }
+    }
+
+    /**
+     * Add a pagination link.
+     *
+     * @param string $name The name of the link.
+     * @param string $url The base URL for pagination links.
+     * @param array $queryParams The query params provided in the request.
+     * @param int $offset The offset to link to.
+     * @param int $limit The current limit.
+     *
+     * @return void
+     */
+    protected function addPaginationLink($name, $url, array $queryParams, $offset, $limit)
+    {
+        if (! isset($queryParams['page']) || ! is_array($queryParams['page'])) {
+            $queryParams['page'] = [];
+        }
+
+        $page = &$queryParams['page'];
+
+        if (isset($page['number'])) {
+            $page['number'] = floor($offset / $limit) + 1;
+
+            if ($page['number'] <= 1) {
+                unset($page['number']);
+            }
+        } else {
+            $page['offset'] = $offset;
+
+            if ($page['offset'] <= 0) {
+                unset($page['offset']);
+            }
+        }
+
+        if (isset($page['limit'])) {
+            $page['limit'] = $limit;
+        }
+
+        $queryString = http_build_query($queryParams);
+
+        $this->addLink($name, $url.($queryString ? '?'.$queryString : ''));
+    }
+}

libraries/vendor/tobscure/json-api/src/MetaTrait.php

@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+trait MetaTrait
+{
+    /**
+     * The meta data array.
+     *
+     * @var array
+     */
+    protected $meta;
+
+    /**
+     * Get the meta.
+     *
+     * @return array
+     */
+    public function getMeta()
+    {
+        return $this->meta;
+    }
+
+    /**
+     * Set the meta data array.
+     *
+     * @param array $meta
+     *
+     * @return $this
+     */
+    public function setMeta(array $meta)
+    {
+        $this->meta = $meta;
+
+        return $this;
+    }
+
+    /**
+     * Add meta data.
+     *
+     * @param string $key
+     * @param string $value
+     *
+     * @return $this
+     */
+    public function addMeta($key, $value)
+    {
+        $this->meta[$key] = $value;
+
+        return $this;
+    }
+}

libraries/vendor/tobscure/json-api/src/Parameters.php

@@ -0,0 +1,220 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+use Tobscure\JsonApi\Exception\InvalidParameterException;
+
+class Parameters
+{
+    /**
+     * @var array
+     */
+    protected $input;
+
+    /**
+     * @param array $input
+     */
+    public function __construct(array $input)
+    {
+        $this->input = $input;
+    }
+
+    /**
+     * Get the includes.
+     *
+     * @param array $available
+     *
+     * @throws \Tobscure\JsonApi\Exception\InvalidParameterException
+     *
+     * @return array
+     */
+    public function getInclude(array $available = [])
+    {
+        if ($include = $this->getInput('include')) {
+            $relationships = explode(',', $include);
+
+            $invalid = array_diff($relationships, $available);
+
+            if (count($invalid)) {
+                throw new InvalidParameterException(
+                    'Invalid includes ['.implode(',', $invalid).']',
+                    1,
+                    null,
+                    'include'
+                );
+            }
+
+            return $relationships;
+        }
+
+        return [];
+    }
+
+    /**
+     * Get number of offset.
+     *
+     * @param int|null $perPage
+     *
+     * @throws \Tobscure\JsonApi\Exception\InvalidParameterException
+     *
+     * @return int
+     */
+    public function getOffset($perPage = null)
+    {
+        if ($perPage && ($offset = $this->getOffsetFromNumber($perPage))) {
+            return $offset;
+        }
+
+        $offset = (int) $this->getPage('offset');
+
+        if ($offset < 0) {
+            throw new InvalidParameterException('page[offset] must be >=0', 2, null, 'page[offset]');
+        }
+
+        return $offset;
+    }
+
+    /**
+     * Calculate the offset based on the page[number] parameter.
+     *
+     * @param int $perPage
+     *
+     * @throws \Tobscure\JsonApi\Exception\InvalidParameterException
+     *
+     * @return int
+     */
+    protected function getOffsetFromNumber($perPage)
+    {
+        $page = (int) $this->getPage('number');
+
+        if ($page <= 1) {
+            return 0;
+        }
+
+        return ($page - 1) * $perPage;
+    }
+
+    /**
+     * Get the limit.
+     *
+     * @param int|null $max
+     *
+     * @return int|null
+     */
+    public function getLimit($max = null)
+    {
+        $limit = $this->getPage('limit') ?: $this->getPage('size') ?: null;
+
+        if ($limit && $max) {
+            $limit = min($max, $limit);
+        }
+
+        return $limit;
+    }
+
+    /**
+     * Get the sort.
+     *
+     * @param array $available
+     *
+     * @throws \Tobscure\JsonApi\Exception\InvalidParameterException
+     *
+     * @return array
+     */
+    public function getSort(array $available = [])
+    {
+        $sort = [];
+
+        if ($input = $this->getInput('sort')) {
+            $fields = explode(',', $input);
+
+            foreach ($fields as $field) {
+                if (substr($field, 0, 1) === '-') {
+                    $field = substr($field, 1);
+                    $order = 'desc';
+                } else {
+                    $order = 'asc';
+                }
+
+                $sort[$field] = $order;
+            }
+
+            $invalid = array_diff(array_keys($sort), $available);
+
+            if (count($invalid)) {
+                throw new InvalidParameterException(
+                    'Invalid sort fields ['.implode(',', $invalid).']',
+                    3,
+                    null,
+                    'sort'
+                );
+            }
+        }
+
+        return $sort;
+    }
+
+    /**
+     * Get the fields requested for inclusion.
+     *
+     * @return array
+     */
+    public function getFields()
+    {
+        $fields = $this->getInput('fields');
+
+        if (! is_array($fields)) {
+            return [];
+        }
+
+        return array_map(function ($fields) {
+            return explode(',', $fields);
+        }, $fields);
+    }
+
+    /**
+     * Get a filter item.
+     *
+     * @return mixed
+     */
+    public function getFilter()
+    {
+        return $this->getInput('filter');
+    }
+
+    /**
+     * Get an input item.
+     *
+     * @param string $key
+     * @param null $default
+     *
+     * @return mixed
+     */
+    protected function getInput($key, $default = null)
+    {
+        return isset($this->input[$key]) ? $this->input[$key] : $default;
+    }
+
+    /**
+     * Get the page.
+     *
+     * @param string $key
+     *
+     * @return string
+     */
+    protected function getPage($key)
+    {
+        $page = $this->getInput('page');
+
+        return isset($page[$key]) ? $page[$key] : '';
+    }
+}

libraries/vendor/tobscure/json-api/src/Relationship.php

@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+class Relationship
+{
+    use LinksTrait;
+    use MetaTrait;
+
+    /**
+     * The data object.
+     *
+     * @var \Tobscure\JsonApi\ElementInterface|null
+     */
+    protected $data;
+
+    /**
+     * Create a new relationship.
+     *
+     * @param \Tobscure\JsonApi\ElementInterface|null $data
+     */
+    public function __construct(ElementInterface $data = null)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * Get the data object.
+     *
+     * @return \Tobscure\JsonApi\ElementInterface|null
+     */
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    /**
+     * Set the data object.
+     *
+     * @param \Tobscure\JsonApi\ElementInterface|null $data
+     *
+     * @return $this
+     */
+    public function setData($data)
+    {
+        $this->data = $data;
+
+        return $this;
+    }
+
+    /**
+     * Map everything to an array.
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        $array = [];
+
+        if (! empty($this->data)) {
+            $array['data'] = $this->data->toIdentifier();
+        }
+
+        if (! empty($this->meta)) {
+            $array['meta'] = $this->meta;
+        }
+
+        if (! empty($this->links)) {
+            $array['links'] = $this->links;
+        }
+
+        return $array;
+    }
+}

libraries/vendor/tobscure/json-api/src/Resource.php

@@ -0,0 +1,406 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+class Resource implements ElementInterface
+{
+    use LinksTrait;
+    use MetaTrait;
+
+    /**
+     * @var mixed
+     */
+    protected $data;
+
+    /**
+     * @var \Tobscure\JsonApi\SerializerInterface
+     */
+    protected $serializer;
+
+    /**
+     * A list of relationships to include.
+     *
+     * @var array
+     */
+    protected $includes = [];
+
+    /**
+     * A list of fields to restrict to.
+     *
+     * @var array|null
+     */
+    protected $fields;
+
+    /**
+     * An array of Resources that should be merged into this one.
+     *
+     * @var \Tobscure\JsonApi\Resource[]
+     */
+    protected $merged = [];
+
+    /**
+     * @var \Tobscure\JsonApi\Relationship[]
+     */
+    private $relationships;
+
+    /**
+     * @param mixed $data
+     * @param \Tobscure\JsonApi\SerializerInterface $serializer
+     */
+    public function __construct($data, SerializerInterface $serializer)
+    {
+        $this->data = $data;
+        $this->serializer = $serializer;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getResources()
+    {
+        return [$this];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toArray()
+    {
+        $array = $this->toIdentifier();
+
+        if (! $this->isIdentifier()) {
+            $attributes = $this->getAttributes();
+            if ($attributes) {
+                $array['attributes'] = $attributes;
+            }
+        }
+
+        $relationships = $this->getRelationshipsAsArray();
+
+        if (count($relationships)) {
+            $array['relationships'] = $relationships;
+        }
+
+        $links = [];
+        if (! empty($this->links)) {
+            $links = $this->links;
+        }
+        $serializerLinks = $this->serializer->getLinks($this->data);
+        if (! empty($serializerLinks)) {
+            $links = array_merge($serializerLinks, $links);
+        }
+        if (! empty($links)) {
+            $array['links'] = $links;
+        }
+
+        $meta = [];
+        if (! empty($this->meta)) {
+            $meta = $this->meta;
+        }
+        $serializerMeta = $this->serializer->getMeta($this->data);
+        if (! empty($serializerMeta)) {
+            $meta = array_merge($serializerMeta, $meta);
+        }
+        if (! empty($meta)) {
+            $array['meta'] = $meta;
+        }
+
+        return $array;
+    }
+
+    /**
+     * Check whether or not this resource is an identifier (i.e. does it have
+     * any data attached?).
+     *
+     * @return bool
+     */
+    public function isIdentifier()
+    {
+        return ! is_object($this->data) && ! is_array($this->data);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toIdentifier()
+    {
+        if (! $this->data) {
+            return;
+        }
+
+        $array = [
+            'type' => $this->getType(),
+            'id' => $this->getId()
+        ];
+
+        if (! empty($this->meta)) {
+            $array['meta'] = $this->meta;
+        }
+
+        return $array;
+    }
+
+    /**
+     * Get the resource type.
+     *
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->serializer->getType($this->data);
+    }
+
+    /**
+     * Get the resource ID.
+     *
+     * @return string
+     */
+    public function getId()
+    {
+        if (! is_object($this->data) && ! is_array($this->data)) {
+            return (string) $this->data;
+        }
+
+        return (string) $this->serializer->getId($this->data);
+    }
+
+    /**
+     * Get the resource attributes.
+     *
+     * @return array
+     */
+    public function getAttributes()
+    {
+        $attributes = (array) $this->serializer->getAttributes($this->data, $this->getOwnFields());
+
+        $attributes = $this->filterFields($attributes);
+
+        $attributes = $this->mergeAttributes($attributes);
+
+        return $attributes;
+    }
+
+    /**
+     * Get the requested fields for this resource type.
+     *
+     * @return array|null
+     */
+    protected function getOwnFields()
+    {
+        $type = $this->getType();
+
+        if (isset($this->fields[$type])) {
+            return $this->fields[$type];
+        }
+    }
+
+    /**
+     * Filter the given fields array (attributes or relationships) according
+     * to the requested fieldset.
+     *
+     * @param array $fields
+     *
+     * @return array
+     */
+    protected function filterFields(array $fields)
+    {
+        if ($requested = $this->getOwnFields()) {
+            $fields = array_intersect_key($fields, array_flip($requested));
+        }
+
+        return $fields;
+    }
+
+    /**
+     * Merge the attributes of merged resources into an array of attributes.
+     *
+     * @param array $attributes
+     *
+     * @return array
+     */
+    protected function mergeAttributes(array $attributes)
+    {
+        foreach ($this->merged as $resource) {
+            $attributes = array_replace_recursive($attributes, $resource->getAttributes());
+        }
+
+        return $attributes;
+    }
+
+    /**
+     * Get the resource relationships.
+     *
+     * @return \Tobscure\JsonApi\Relationship[]
+     */
+    public function getRelationships()
+    {
+        $relationships = $this->buildRelationships();
+
+        return $this->filterFields($relationships);
+    }
+
+    /**
+     * Get the resource relationships without considering requested ones.
+     *
+     * @return \Tobscure\JsonApi\Relationship[]
+     */
+    public function getUnfilteredRelationships()
+    {
+        return $this->buildRelationships();
+    }
+
+    /**
+     * Get the resource relationships as an array.
+     *
+     * @return array
+     */
+    public function getRelationshipsAsArray()
+    {
+        $relationships = $this->getRelationships();
+
+        $relationships = $this->convertRelationshipsToArray($relationships);
+
+        return $this->mergeRelationships($relationships);
+    }
+
+    /**
+     * Get an array of built relationships.
+     *
+     * @return \Tobscure\JsonApi\Relationship[]
+     */
+    protected function buildRelationships()
+    {
+        if (isset($this->relationships)) {
+            return $this->relationships;
+        }
+
+        $paths = Util::parseRelationshipPaths($this->includes);
+
+        $relationships = [];
+
+        foreach ($paths as $name => $nested) {
+            $relationship = $this->serializer->getRelationship($this->data, $name);
+
+            if ($relationship) {
+                $relationshipData = $relationship->getData();
+                if ($relationshipData instanceof ElementInterface) {
+                    $relationshipData->with($nested)->fields($this->fields);
+                }
+
+                $relationships[$name] = $relationship;
+            }
+        }
+
+        return $this->relationships = $relationships;
+    }
+
+    /**
+     * Merge the relationships of merged resources into an array of
+     * relationships.
+     *
+     * @param array $relationships
+     *
+     * @return array
+     */
+    protected function mergeRelationships(array $relationships)
+    {
+        foreach ($this->merged as $resource) {
+            $relationships = array_replace_recursive($relationships, $resource->getRelationshipsAsArray());
+        }
+
+        return $relationships;
+    }
+
+    /**
+     * Convert the given array of Relationship objects into an array.
+     *
+     * @param \Tobscure\JsonApi\Relationship[] $relationships
+     *
+     * @return array
+     */
+    protected function convertRelationshipsToArray(array $relationships)
+    {
+        return array_map(function (Relationship $relationship) {
+            return $relationship->toArray();
+        }, $relationships);
+    }
+
+    /**
+     * Merge a resource into this one.
+     *
+     * @param \Tobscure\JsonApi\Resource $resource
+     *
+     * @return void
+     */
+    public function merge(Resource $resource)
+    {
+        $this->merged[] = $resource;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function with($relationships)
+    {
+        $this->includes = array_unique(array_merge($this->includes, (array) $relationships));
+
+        $this->relationships = null;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function fields($fields)
+    {
+        $this->fields = $fields;
+
+        return $this;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    /**
+     * @param mixed $data
+     *
+     * @return void
+     */
+    public function setData($data)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * @return \Tobscure\JsonApi\SerializerInterface
+     */
+    public function getSerializer()
+    {
+        return $this->serializer;
+    }
+
+    /**
+     * @param \Tobscure\JsonApi\SerializerInterface $serializer
+     *
+     * @return void
+     */
+    public function setSerializer(SerializerInterface $serializer)
+    {
+        $this->serializer = $serializer;
+    }
+}

libraries/vendor/tobscure/json-api/src/SerializerInterface.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+interface SerializerInterface
+{
+    /**
+     * Get the type.
+     *
+     * @param mixed $model
+     *
+     * @return string
+     */
+    public function getType($model);
+
+    /**
+     * Get the id.
+     *
+     * @param mixed $model
+     *
+     * @return string
+     */
+    public function getId($model);
+
+    /**
+     * Get the attributes array.
+     *
+     * @param mixed $model
+     * @param array|null $fields
+     *
+     * @return array
+     */
+    public function getAttributes($model, array $fields = null);
+
+    /**
+     * Get the links array.
+     *
+     * @param mixed $model
+     *
+     * @return array
+     */
+    public function getLinks($model);
+
+    /**
+     * Get the meta.
+     *
+     * @param mixed $model
+     *
+     * @return array
+     */
+    public function getMeta($model);
+
+    /**
+     * Get a relationship.
+     *
+     * @param mixed $model
+     * @param string $name
+     *
+     * @return \Tobscure\JsonApi\Relationship|null
+     */
+    public function getRelationship($model, $name);
+}

libraries/vendor/tobscure/json-api/src/Util.php

@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of JSON-API.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Tobscure\JsonApi;
+
+class Util
+{
+    /**
+     * Parse relationship paths.
+     *
+     * Given a flat array of relationship paths like:
+     *
+     * ['user', 'user.employer', 'user.employer.country', 'comments']
+     *
+     * create a nested array of relationship paths one-level deep that can
+     * be passed on to other serializers:
+     *
+     * ['user' => ['employer', 'employer.country'], 'comments' => []]
+     *
+     * @param array $paths
+     *
+     * @return array
+     */
+    public static function parseRelationshipPaths(array $paths)
+    {
+        $tree = [];
+
+        foreach ($paths as $path) {
+            list($primary, $nested) = array_pad(explode('.', $path, 2), 2, null);
+
+            if (! isset($tree[$primary])) {
+                $tree[$primary] = [];
+            }
+
+            if ($nested) {
+                $tree[$primary][] = $nested;
+            }
+        }
+
+        return $tree;
+    }
+}