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<?php
namespace Ushahidi\App\DataSource;
use Illuminate\Support\Facades\Cache;
use Laravel\Lumen\Routing\Router;
use Ushahidi\Core\Entity\ConfigRepository;
use InvalidArgumentException;
class DataSourceManager
{
/**
* Cache lifetime in minutes
*/
const CACHE_LIFETIME = 1;
/**
* Config repo instance
*
* @var \Ushahidi\Core\Entity\ConfigRepository;
*/
protected $configRepo;
/**
* Sources to be configured
*
* [name => classname]
*
* @var [string, ...]
*/
protected $sources = [
'email' => Email\Email::class,
'outgoingemail' => Email\OutgoingEmail::class,
'frontlinesms' => FrontlineSMS\FrontlineSMS::class,
'nexmo' => Nexmo\Nexmo::class,
'smssync' => SMSSync\SMSSync::class,
'twilio' => Twilio\Twilio::class,
'twitter' => Twitter\Twitter::class,
];
/**
* The array of data sources.
*
* @var [Ushahidi\App\DataSource\DataSource, ...]
*/
protected $loadedSources = [];
/**
* Data Source Storage
* @var
*/
protected $storage;
/**
* Create a new datasource manager instance.
*
* @param Laravel\Lumen\Routing\Router $router
* @return void
*/
public function __construct(ConfigRepository $configRepo)
{
$this->configRepo = $configRepo;
}
public function getSources() : array
{
return array_keys($this->sources);
}
/**
* Get an array of enabled source names
*
* @return [string, ...]
*/
public function getEnabledSources() : array
{
return Cache::remember('datasources.enabled', self::CACHE_LIFETIME, function () {
// Load enabled sources
$enabledSources = array_filter(
$this->configRepo->get('data-provider')->asArray()['providers']
);
// Load available sources
$availableSources = array_filter(
$this->configRepo->get('features')->asArray()['data-providers']
);
$sources = array_intersect_key(
$this->sources,
$enabledSources,
$availableSources
);
return array_keys($sources);
});
}
/**
* Check if source is enabled
* @param string $name
* @return boolean
*/
public function isEnabledSource(string $name) : bool
{
$sources = $this->getEnabledSources();
return in_array($name, $sources);
}
/**
* Get data source instance
* @param string $name
* @return DataSource
*/
public function getSource(string $name) : DataSource
{
return $this->loadedSources[$name] ?? $this->resolve($name);
}
/**
* Get enabled data source instance
* @param string $name
* @return DataSource
*/
public function getEnabledSource(string $name) : DataSource
{
if (!$this->isEnabledSource($name)) {
throw new InvalidArgumentException("Source [{$name}] is not enabled.");
}
return $this->getSource($name);
}
/**
* Get the enable source for a specific type
* @param string $type
* @return DataSource|boolean
*/
public function getSourceForType(string $type)
{
// Grab the first enabled source that provides that service
foreach ($this->getEnabledSources() as $name) {
$source = $this->getSource($name);
if (in_array($type, $source->getServices())) {
return $source;
}
}
return false;
}
/**
* Register routes for callback sources
*/
public function registerRoutes(Router $router)
{
foreach ($this->sources as $name => $class) {
if (in_array(CallbackDataSource::class, class_implements($class))) {
$class::registerRoutes($router);
}
}
}
/**
* Set data source storage
* @param DataSourceStorage $storage
*/
public function setStorage(DataSourceStorage $storage)
{
$this->storage = $storage;
}
/**
* Get data source storage
* @return DataSourceStorage
*/
public function getStorage() : DataSourceStorage
{
return $this->storage;
}
/**
* Get config for data source
* @param string $name
* @return array
*/
protected function getConfig(string $name) : array
{
$config = Cache::remember('config.data-provider', self::CACHE_LIFETIME, function () {
return $this->configRepo->get('data-provider')->asArray();
});
return $config[$name] ?? [];
}
/**
* Resolve data source class
* @param string $name
* @return DataSource
*/
protected function resolve(string $name) : DataSource
{
$config = $this->getConfig($name);
$driverMethod = 'create'.ucfirst($name).'Source';
if (method_exists($this, $driverMethod)) {
return $this->loadedSources[$name] = $this->{$driverMethod}($config);
} else {
throw new InvalidArgumentException("Source [{$name}] is not supported.");
}
}
/**
* Wipe resolved source instances
*/
public function clearResolvedSources()
{
$this->loadedSources = [];
}
protected function createSmssyncSource(array $config)
{
return new SMSSync\SMSSync($config);
}
protected function createEmailSource(array $config)
{
return new Email\Email(
$config,
app('mailer'),
app(\Ushahidi\Core\Entity\MessageRepository::class)
);
}
protected function createOutgoingemailSource(array $config)
{
return new Email\OutgoingEmail(
$config, // NB: This is not the same as email config and is likely to be empty
app('mailer')
);
}
protected function createFrontlinesmsSource(array $config)
{
return new FrontlineSMS\FrontlineSMS($config, new \GuzzleHttp\Client());
}
protected function createTwilioSource(array $config)
{
return new Twilio\Twilio($config, function ($accountSid, $authToken) {
return new \Twilio\Rest\Client($accountSid, $authToken);
});
}
protected function createNexmoSource(array $config)
{
return new Nexmo\Nexmo($config, function ($apiKey, $apiSecret) {
return new \Nexmo\Client(new \Nexmo\Client\Credentials\Basic($apiKey, $apiSecret));
});
}
protected function createTwitterSource($config)
{
return new Twitter\Twitter(
$config,
$this->configRepo,
function ($consumer_key, $consumer_secret, $oauth_access_token, $oauth_access_token_secret) {
return new \Abraham\TwitterOAuth\TwitterOAuth(
$consumer_key,
$consumer_secret,
$oauth_access_token,
$oauth_access_token_secret
);
}
);
}
}