src/Repositories/TopicRepository.php
<?php
namespace EscolaLms\Courses\Repositories;
use Error;
use EscolaLms\Courses\Exceptions\TopicException;
use EscolaLms\Courses\Http\Requests\CreateTopicAPIRequest;
use EscolaLms\Courses\Http\Requests\UpdateTopicAPIRequest;
use EscolaLms\Courses\Models\Contracts\TopicContentContract;
use EscolaLms\Courses\Models\Contracts\TopicFileContentContract;
use EscolaLms\Courses\Models\Topic;
use EscolaLms\Courses\Models\TopicContent\AbstractTopicFileContent;
use EscolaLms\Courses\Repositories\Contracts\TopicRepositoryContract;
use EscolaLms\Files\Helpers\FileHelper;
use EscolaLms\Files\Rules\FileOrStringRule;
use EscolaLms\TopicTypes\Events\TopicTypeChanged;
use EscolaLms\TopicTypes\Models\TopicContent\AbstractTopicContent;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Resources\Json\JsonResource;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Validator;
/**
* Class TopicRepository.
*
* @version April 27, 2021, 11:21 am UTC
*/
class TopicRepository extends BaseRepository implements TopicRepositoryContract
{
/**
* @var array
* All possible classes that can store content
*/
private array $contentClasses = [];
/**
* @var array
* All possible classes that can store content
*/
private array $resourceClasses = [];
/**
* @var array
*/
protected $fieldSearchable = [
'title',
'lesson_id',
'topicable_id',
'topicable_type',
'order',
'active',
'boolean',
];
/**
* Return searchable fields.
*
* @return array
*/
public function getFieldsSearchable()
{
return $this->fieldSearchable;
}
/**
* Configure the Model.
**/
public function model()
{
return Topic::class;
}
/**
* @param string $class fullname of a class that can be content
*
* @return array list of unique classes
*/
public function registerContentClass(string $class): array
{
if (!in_array($class, $this->contentClasses) && class_exists($class) && (is_a($class, TopicContentContract::class, true))) {
$this->contentClasses[] = $class;
}
return $this->contentClasses;
}
public function registerContentClasses(array $classes): array
{
foreach ($classes as $class) {
$this->registerContentClass($class);
}
return $this->contentClasses;
}
public function registerResourceClass(string $topicTypeClass, string $resourceClass, string $type = 'client'): array
{
if (!isset($this->resourceClasses[$type][$topicTypeClass]) && class_exists($resourceClass) && (is_a($resourceClass, JsonResource::class, true))) {
$this->resourceClasses[$type][$topicTypeClass] = $resourceClass;
}
return $this->resourceClasses[$type];
}
public function registerResourceClasses(string $topicTypeClass, array $resourceClasses): array
{
foreach ($resourceClasses as $type => $resourceClass) {
$this->registerResourceClass($topicTypeClass, $resourceClass, $type);
}
return $this->resourceClasses;
}
public function getResourceClass(string $topicTypeClass = null, string $type = 'client'): string
{
if (isset($this->resourceClasses[$type][$topicTypeClass])) {
return $this->resourceClasses[$type][$topicTypeClass];
}
return '';
}
public function unregisterContentClass(string $class): array
{
if (($key = array_search($class, $this->contentClasses)) !== false) {
unset($this->contentClasses[$key]);
}
return $this->contentClasses;
}
public function availableContentClasses(): array
{
return $this->contentClasses;
}
public function getById($id): Topic
{
/** @var Topic */
return $this->model->newQuery()->findOrFail($id);
}
/**
* Create model record.
*/
public function create(array $input): Topic
{
$input = [
'title' => $input['title'],
'lesson_id' => $input['lesson_id'],
'order' => $input['order'] ?? 0,
'active' => true,
'preview' => false,
'summary' => isset($input['summary']) ? $input['summary'] : null,
'introduction' => isset($input['introduction']) ? $input['introduction'] : null,
'description' => isset($input['description']) ? $input['description'] : null,
'can_skip' => (bool) ($input['can_skip'] ?? false),
];
$model = $this->model->newInstance($input);
$model->save();
return $model;
}
/**
* Update model record for given id.
*
* @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Eloquent\Builder[]|\Illuminate\Database\Eloquent\Collection|Model
*/
public function update(array $input, int $id): Topic
{
$query = $this->model->newQuery();
$model = $query->with('topicable')->findOrFail($id);
$model->fill($input);
$model->save();
return $model;
}
public function createFromRequest(CreateTopicAPIRequest $request): Topic
{
$validated = $request->validated();
/** @var Topic $topic */
$topic = $this->model->newInstance([
'title' => $validated['title'],
'lesson_id' => $validated['lesson_id'],
'order' => $validated['order'] ?? 0,
'active' => $validated['active'] ?? true,
'preview' => $validated['preview'] ?? false,
'summary' => $validated['summary'] ?? null,
'introduction' => $validated['introduction'] ?? null,
'description' => $validated['description'] ?? null,
'can_skip' => $validated['can_skip'] ?? false,
'json' => empty($validated['json']) ? null : json_decode($validated['json']),
'duration' => $validated['duration'] ?? null,
]);
$topic->save();
$this->createTopicContentModelFromRequest($request, $topic);
return $topic->loadMissing('topicable');
}
public function updateFromRequest(UpdateTopicAPIRequest $request): Topic
{
$topic = $request->getTopic()->loadMissing('topicable');
if ($request->has('topicable_type')) {
$class = $request->input('topicable_type');
if (!in_array($class, $this->contentClasses)) {
throw new Error("Type '$class' is not allowed");
}
if ($topic->topicable && $class === get_class($topic->topicable) && $request->hasAny(array_keys($class::rules()))) {
$this->updateTopicContentModelFromRequest($request, $topic->topicable);
} else {
$topicContent = $this->createTopicContentModelFromRequest($request, $topic);
$topic->topicable()->associate($topicContent);
}
}
$validated = $request->validated();
if (!empty($validated['json'])) {
$validated['json'] = json_decode($validated['json'], true);
}
$topic->fill($validated);
$topic->save();
return $topic;
}
/**
* @return TopicContentContract|TopicFileContentContract|Model
*
* @throws TopicException
*/
private function createTopicContentModelFromRequest(FormRequest $request, Topic $topic): Model
{
$class = $request->input('topicable_type');
if (!in_array($class, $this->contentClasses)) {
throw new Error("Type '$class' is not allowed");
}
$model = new $class();
assert($model instanceof TopicContentContract);
assert($model instanceof Model);
$modelRules = $model::rules();
if ($model instanceof TopicFileContentContract) {
foreach ($model->getFileKeyNames() as $fileKey) {
$modelRules[$fileKey] = new FileOrStringRule($modelRules[$fileKey], "course/{$topic->course->getKey()}");
}
}
$validator = Validator::make($request->all(), $modelRules);
if ($validator->fails()) {
throw new TopicException(TopicException::CONTENT_VALIDATION, $validator->errors()->toArray());
}
$attributes = $validator->validated();
if ($model instanceof TopicFileContentContract) {
$attributes = array_filter($attributes, fn ($attribute_key) => !in_array($attribute_key, $model->getFileKeyNames()), ARRAY_FILTER_USE_KEY);
$model->storeUploadsFromRequest($request, $topic->storage_directory);
}
$model->fill($attributes);
$model->save();
$model->topic()->save($topic);
return $model;
}
/**
* @param FormRequest $request
* @param $topicContent
* @return Model
* @throws TopicException
* @throws \Illuminate\Validation\ValidationException
*
*/
private function updateTopicContentModelFromRequest(FormRequest $request,TopicContentContract $topicContent): Model
{
assert($topicContent instanceof Model);
$rules = $this->getRulesForTopicContentUpdate($request, $topicContent);
$validator = Validator::make($request->all(), $rules);
if ($validator->fails()) {
throw new TopicException(TopicException::CONTENT_VALIDATION, $validator->errors()->toArray());
}
$attributes = $validator->validated();
if ($topicContent instanceof TopicFileContentContract) {
Arr::forget($attributes, $topicContent->getFileKeyNames());
$topicContent->storeUploadsFromRequest($request);
}
// we only update validated attributes and we removed validations for fields that would cause problems :)
$topicContent->fill($attributes);
$topicContent->save();
return $topicContent;
}
private function getRulesForTopicContentUpdate(FormRequest $request, TopicContentContract $topicContent)
{
// we want to do partial update, so we add 'sometimes' to all rules
$partialRules = array_map(fn ($field_rules) => is_array($field_rules) ? array_merge(['sometimes'], $field_rules) : 'sometimes' . $field_rules, $topicContent::rules());
// don't try to validate file keys in request if they don't contain file during topic / topic content update
if ($topicContent instanceof TopicFileContentContract) {
foreach ($topicContent->getFileKeyNames() as $fileKeyName) {
if (!$request->has($fileKeyName)) {
unset($partialRules[$fileKeyName]);
} else {
$prefixPath = 'course/' . $topicContent->topic->course->getKey();
$partialRules[$fileKeyName] = new FileOrStringRule($partialRules[$fileKeyName], $prefixPath);
}
}
}
return $partialRules;
}
public function delete(int $id): ?bool
{
$topic = $this->findWith($id, ['*'], ['topicable']);
return !is_null($topic) && $this->deleteModel($topic);
}
public function deleteModel(Topic $topic): ?bool
{
if ($topic->delete()) {
$topicable = $topic->topicable;
if (is_a($topicable, AbstractTopicFileContent::class)) {
/** @var AbstractTopicFileContent $topicable */
$path = Storage::path($topicable->generateStoragePath());
try {
File::cleanDirectory($path);
Storage::deleteDirectory($path);
} catch (\Throwable $th) {
}
}
}
return true;
}
}