<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Plugins\PagePerformance\Columns;

use Exception;
use Piwik\Config;
use Piwik\Exception\InvalidRequestParameterException;
use Piwik\Plugin\Dimension\ActionDimension;
use Piwik\Tracker\Action;
use Piwik\Tracker\ActionPageview;
use Piwik\Tracker\Request;
use Piwik\Tracker\Visitor;

abstract class Base extends ActionDimension
{
    protected $type = self::TYPE_DURATION_MS;
    protected $columnName;

    abstract public function getRequestParam();

    private function getConfigValueCap()
    {
        try {
            $valueCap = Config::getInstance()->PagePerformance[$this->columnName . '_cap_' . $this->type] ?? 0;
        } catch (Exception $ex) {
            // 0 disables cap
            return 0;
        }
        return $valueCap;
    }

    public function getSqlCappedValue()
    {
        $valueCap = (int)$this->getConfigValueCap();
        if ($valueCap === 0) {
            return 'ifnull(%s, 0)';
        }
        return 'least(ifnull(%s, 0), ' . $valueCap . ')';
    }

    public function onNewAction(Request $request, Visitor $visitor, Action $action)
    {
        if (!($action instanceof ActionPageview)) {
            return false;
        }

        $time = $request->getParam($this->getRequestParam());

        if ($time === -1) {
            return false;
        }

        if ($time < 0) {
            throw new InvalidRequestParameterException(sprintf('Value for %1$s can\'t be negative.', $this->getRequestParam()));
        }

        // ignore values that are too high to be stored in column (unsigned mediumint)
        // refs https://github.com/matomo-org/matomo/issues/17035
        if ($time > 16777215) {
            return false;
        }

        return $time;
    }
}