*** Backup Mirror *** The web interface and JSON api for the ConnectedHumber Air Quality Monitoring Project. https://github.com/ConnectedHumber/Air-Quality-Web
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Air-Quality-Web/logic/Actions/FetchData.php

92 lines
2.5 KiB

<?php
namespace AirQuality\Actions;
use \SBRL\TomlConfig;
use \AirQuality\Repositories\IMeasurementDataRepository;
use \AirQuality\Repositories\IMeasurementTypeRepository;
use \AirQuality\ApiResponseSender;
use \AirQuality\Validator;
use \AirQuality\PerfFormatter;
class FetchData implements IAction {
/** @var TomlConfig */
private $settings;
/** @var IMeasurementDataRepository */
private $measurement_repo;
/** @var IMeasurementTypeRepository */
private $type_repo;
/** @var ApiResponseSender */
private $sender;
/** @var Validator */
private $validator;
public function __construct(
TomlConfig $in_settings,
IMeasurementDataRepository $in_measurement_repo,
IMeasurementTypeRepository $in_type_repo,
ApiResponseSender $in_sender) {
$this->settings = $in_settings;
$this->measurement_repo = $in_measurement_repo;
$this->type_repo = $in_type_repo;
$this->sender = $in_sender;
$this->validator = new Validator($_GET);
}
public function handle() : bool {
global $start_time;
$start_handle = microtime(true);
// 1: Validate params
$this->validator->is_datetime("datetime");
$this->validator->exists("reading_type");
$this->validator->is_max_length("reading_type", 256);
$this->validator->run();
if(!$this->type_repo->is_valid_type($_GET["reading_type"])) {
$this->sender->send_error_plain(
400, "Error: That reading type is invalid.", [
[ "x-time-taken", PerfFormatter::format_perf_data($start_time, $start_handle, null) ]
]
);
return false;
}
// 2: Pull data from database
$data = $this->measurement_repo->get_readings_by_date(
new \DateTime($_GET["datetime"]),
$_GET["reading_type"]
);
// 2.5: Validate data from database
if(empty($data)) {
http_response_code(404);
header("content-type: text/plain");
header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, null));
echo("Error: No data could be found for that timestamp.");
return false;
}
// 3: Serialise data
$start_encode = microtime(true);
$response = json_encode($data);
// 4: Send response
// Send a cache-control header, but only in production mode
if($this->settings->get("env.mode") == "production") {
header("cache-control: public, max-age=" . $this->settings->get("cache.max-age"));
}
header("content-type: application/json");
header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, $start_encode));
echo($response);
return true;
}
}