7 changed files with 214 additions and 3 deletions
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<?php |
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namespace AirQuality\Actions; |
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use \SBRL\TomlConfig; |
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use \SBRL\ResponseEncoder; |
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use \AirQuality\Repositories\IMeasurementDataRepository; |
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use \AirQuality\Repositories\IMeasurementTypeRepository; |
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use \AirQuality\ApiResponseSender; |
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use \AirQuality\Validator; |
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use \AirQuality\PerfFormatter; |
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/** |
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* Action that retrieves recent data for a device. |
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*/ |
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class DeviceDataRecent implements IAction { |
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/** @var TomlConfig */ |
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private $settings; |
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/** @var IMeasurementDataRepository */ |
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private $measurement_repo; |
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/** @var IMeasurementTypeRepository */ |
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private $type_repo; |
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/** @var ApiResponseSender */ |
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private $sender; |
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/** @var Validator */ |
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private $validator; |
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public function __construct( |
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TomlConfig $in_settings, |
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IMeasurementDataRepository $in_measurement_repo, |
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IMeasurementTypeRepository $in_type_repo, |
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ApiResponseSender $in_sender) { |
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$this->settings = $in_settings; |
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$this->measurement_repo = $in_measurement_repo; |
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$this->type_repo = $in_type_repo; |
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$this->sender = $in_sender; |
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$this->validator = new Validator($_GET); |
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} |
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public function handle() : bool { |
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global $start_time; |
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$start_handle = microtime(true); |
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// 1: Validate params |
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$this->validator->is_numberish("device-id"); |
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$this->validator->exists("reading-type"); |
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$this->validator->is_max_length("reading-type", 256); |
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$this->validator->is_numberish("count"); |
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$this->validator->is_min("count", 0); |
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$this->validator->is_max("count", $this->settings->get("limits.device_data_recent.max_rows")); |
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if(!empty($_GET["format"])) |
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$this->validator->is_preset_value("format", ["json", "csv"], 406); |
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$this->validator->run(); |
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$format = $_GET["format"] ?? "json"; |
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$count = intval($_GET["count"]); |
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$reading_type_id = $this->type_repo->get_id($_GET["reading-type"]); |
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if($reading_type_id == null) { |
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$this->sender->send_error_plain( |
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400, "Error: That reading type is invalid.", [ |
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[ "x-time-taken", PerfFormatter::format_perf_data($start_time, $start_handle, null) ] |
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] |
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); |
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return false; |
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} |
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// 2: Pull data from database |
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$data = $this->measurement_repo->get_recent_readings( |
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intval($_GET["device-id"]), |
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$reading_type_id, |
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$count |
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); |
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// 2.5: Validate data from database |
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if(empty($data)) { |
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http_response_code(404); |
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header("content-type: text/plain"); |
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header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, null)); |
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echo("Error: No data has been recorded from the device id for that measurement type in the selected time scale or it doesn't exist."); |
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return false; |
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} |
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// 3: Serialise data |
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// FUTURE: Refactor this into an AbstractAction or something, but the careful not to shift too much work there |
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// We might want to consider a HttpResponse container or something if we can find a decent PSR implementation |
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$start_encode = microtime(true); |
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$response_type = "application/octet-stream"; |
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$response_suggested_filename = "data-" . date(\DateTime::ATOM) . ""; |
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$response = null; |
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switch($format) { |
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case "json": |
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$response_type = "application/json"; |
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$response_suggested_filename .= ".json"; |
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$response = json_encode($data); |
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break; |
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case "csv": |
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$response_type = "text/csv"; |
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$response_suggested_filename .= ".csv"; |
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$response = ResponseEncoder::encode_csv($data); |
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break; |
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} |
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// 4: Send response |
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header("content-length: " . strlen($response)); |
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header("content-type: $response_type"); |
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header("content-disposition: inline; filename=$response_suggested_filename"); |
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header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, $start_encode)); |
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echo($response); |
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return true; |
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} |
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} |
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