*** 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/DeviceData.php

136 lines
3.9 KiB

<?php
namespace AirQuality\Actions;
use \SBRL\TomlConfig;
use \SBRL\ResponseEncoder;
use \AirQuality\Repositories\IMeasurementDataRepository;
use \AirQuality\Repositories\IMeasurementTypeRepository;
use \AirQuality\ApiResponseSender;
use \AirQuality\Validator;
use \AirQuality\PerfFormatter;
class DeviceData 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_numberish("device-id");
$this->validator->exists("reading-type");
$this->validator->is_max_length("reading-type", 256);
$this->validator->is_datetime("start");
$this->validator->is_datetime("end");
if(!empty($_GET["format"]))
$this->validator->is_preset_value("format", ["json", "csv"], 406);
$this->validator->run();
$format = $_GET["format"] ?? "json";
if(new \DateTime($_GET["start"]) > new \DateTime($_GET["end"])) {
$this->sender->send_error_plain(
400, "Error: The start date must be earlier than the end date.", [
[ "x-time-taken", PerfFormatter::format_perf_data($start_time, $start_handle, null) ]
]
);
return false;
}
if(!empty($_GET["average-seconds"]) && intval($_GET["average-seconds"]) == 0) {
$this->sender->send_error_plain(
400, "Error: That average-seconds value is invalid (an integer greater than 0 required).", [
[ "x-time-taken", PerfFormatter::format_perf_data($start_time, $start_handle, null) ]
]
);
return false;
}
$reading_type_id = $this->type_repo->get_id($_GET["reading-type"]);
if($reading_type_id == null) {
$this->sender->send_error_plain(
400, "Error: That reading type is invalid.", [
[ "x-time-taken", PerfFormatter::format_perf_data($start_time, $start_handle, null) ]
]
);
return false;
}
// 2: Pull data from database
$data = $this->measurement_repo->get_readings_by_device(
intval($_GET["device-id"]),
$reading_type_id,
new \DateTime($_GET["start"]),
new \DateTime($_GET["end"]),
!empty($_GET["average-seconds"]) ? intval($_GET["average-seconds"]) : 1
);
// 2.5: Validate data from database
if(empty($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 has been recorded from the device id for that measurement type in the selected time scale or it doesn't exist.");
return false;
}
// 3: Serialise data
$start_encode = microtime(true);
$response_type = "application/octet-stream";
$response_suggested_filename = "data-" . date(\DateTime::ATOM) . "";
$response = null;
switch($format) {
case "json":
$response_type = "application/json";
$response_suggested_filename .= ".json";
$response = json_encode($data);
break;
case "csv":
$response_type = "text/csv";
$response_suggested_filename .= ".csv";
$response = ResponseEncoder::encode_csv($data);
break;
}
// 4: Send response
header("content-length: " . strlen($response));
header("content-type: $response_type");
header("content-disposition: inline; filename=$response_suggested_filename");
header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, $start_encode));
echo($response);
return true;
}
}