2019-01-13 13:06:32 +00:00
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<?php
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namespace AirQuality\Actions;
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2019-01-15 15:46:24 +00:00
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use \SBRL\TomlConfig;
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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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2019-01-13 13:06:32 +00:00
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2019-01-15 15:46:24 +00:00
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use \AirQuality\Validator;
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use \AirQuality\PerfFormatter;
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class FetchData implements IAction {
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/** @var TomlConfig */
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2019-01-13 13:06:32 +00:00
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private $settings;
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2019-01-19 21:12:11 +00:00
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2019-01-15 15:46:24 +00:00
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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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2019-01-14 20:41:25 +00:00
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private $validator;
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2019-01-13 13:06:32 +00:00
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public function __construct(
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2019-01-15 15:46:24 +00:00
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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 $in_sender) {
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2019-01-13 13:06:32 +00:00
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$this->settings = $in_settings;
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2019-01-15 15:46:24 +00:00
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$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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2019-01-13 13:06:32 +00:00
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}
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2019-01-15 17:02:24 +00:00
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public function handle() : bool {
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2019-01-14 22:18:30 +00:00
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global $start_time;
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2019-01-15 15:46:24 +00:00
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$start_handle = microtime(true);
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2019-01-14 22:18:30 +00:00
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// 1: Validate params
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2019-01-14 20:41:25 +00:00
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$this->validator->is_datetime("datetime");
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2019-01-15 15:46:24 +00:00
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$this->validator->exists("reading_type");
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$this->validator->is_max_length("reading_type", 256);
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2019-01-14 20:41:25 +00:00
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$this->validator->run();
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2019-01-15 15:46:24 +00:00
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if(!$this->type_repo->is_valid_type($_GET["reading_type"])) {
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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, $start_handle, null) ]
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]
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);
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return false;
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}
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2019-01-14 22:18:30 +00:00
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// 2: Pull data from database
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2019-01-15 15:46:24 +00:00
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$data = $this->measurement_repo->get_readings_by_date(
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new \DateTime($_GET["datetime"]),
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$_GET["reading_type"]
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);
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2019-01-14 22:18:30 +00:00
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// 2.5: Validate data from database
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2019-01-15 15:46:24 +00:00
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if(empty($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, $start_handle, null));
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echo("Error: No data could be found for that timestamp.");
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return false;
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}
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2019-01-14 22:18:30 +00:00
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// 3: Serialise data
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2019-01-15 15:46:24 +00:00
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$start_encode = microtime(true);
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$response = json_encode($data);
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2019-01-14 22:18:30 +00:00
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// 4: Send response
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2019-01-15 23:03:53 +00:00
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2019-01-17 14:51:19 +00:00
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// Send a cache-control header, but only in production mode
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if($this->settings->get("env.mode") == "production") {
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header("cache-control: public, max-age=" . $this->settings->get("cache.max-age"));
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}
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2019-01-17 15:33:10 +00:00
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header("content-length: " . strlen($response));
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2019-01-14 22:18:30 +00:00
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header("content-type: application/json");
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2019-01-15 15:46:24 +00:00
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header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, $start_encode));
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2019-01-14 22:18:30 +00:00
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echo($response);
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return true;
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2019-01-13 13:06:32 +00:00
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}
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}
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