<?php

declare(strict_types=1);

/**
 * Class FakePodcastsAnalyticsSeeder Inserts Fake Analytics in the database
 *
 * @copyright  2020 Ad Aures
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

namespace App\Database\Seeds;

use App\Models\EpisodeModel;
use App\Models\PodcastModel;
use CodeIgniter\Database\Seeder;
use GeoIp2\Database\Reader;

use GeoIp2\Exception\AddressNotFoundException;

class FakePodcastsAnalyticsSeeder extends Seeder
{
    public function run(): void
    {
        $jsonUserAgents = json_decode(
            file_get_contents('https://raw.githubusercontent.com/opawg/user-agents/master/src/user-agents.json'),
            true,
            512,
            JSON_THROW_ON_ERROR,
        );

        $jsonRSSUserAgents = json_decode(
            file_get_contents(
                'https://raw.githubusercontent.com/opawg/podcast-rss-useragents/master/src/rss-ua.json',
            ),
            true,
            512,
            JSON_THROW_ON_ERROR,
        );

        $podcast = (new PodcastModel())->first();

        if ($podcast !== null) {
            $firstEpisode = (new EpisodeModel())
                ->selectMin('published_at')
                ->first();

            for (
                $date = strtotime((string) $firstEpisode->published_at);
                $date < strtotime('now');
                $date = strtotime(date('Y-m-d', $date) . ' +1 day')
            ) {
                $analyticsPodcasts = [];
                $analyticsPodcastsByHour = [];
                $analyticsPodcastsByCountry = [];
                $analyticsPodcastsByEpisode = [];
                $analyticsPodcastsByPlayer = [];
                $analyticsPodcastsByRegion = [];

                $episodes = (new EpisodeModel())
                    ->where('podcast_id', $podcast->id)
                    ->where('`published_at` <= NOW()', null, false)
                    ->findAll();
                foreach ($episodes as $episode) {
                    $age = floor(($date - strtotime((string) $episode->published_at)) / 86400);
                    $probability1 = floor(exp(3 - $age / 40)) + 1;

                    for (
                        $lineNumber = 0;
                        $lineNumber < rand(1, (int) $probability1);
                        ++$lineNumber
                    ) {
                        $probability2 = floor(exp(6 - $age / 20)) + 10;

                        $player =
                            $jsonUserAgents[
                                rand(1, count($jsonUserAgents) - 1)
                            ];
                        $service =
                            $jsonRSSUserAgents[
                                rand(1, count($jsonRSSUserAgents) - 1)
                            ]['slug'];
                        $app = isset($player['app']) ? $player['app'] : '';
                        $device = isset($player['device'])
                            ? $player['device']
                            : '';
                        $os = isset($player['os']) ? $player['os'] : '';
                        $isBot = isset($player['bot']) ? $player['bot'] : 0;

                        $fakeIp =
                            rand(0, 255) .
                            '.' .
                            rand(0, 255) .
                            '.' .
                            rand(0, 255) .
                            '.' .
                            rand(0, 255);

                        $cityReader = new Reader(WRITEPATH . 'uploads/GeoLite2-City/GeoLite2-City.mmdb');

                        $countryCode = 'N/A';
                        $regionCode = 'N/A';
                        $latitude = null;
                        $longitude = null;
                        try {
                            $city = $cityReader->city($fakeIp);

                            $countryCode = $city->country->isoCode === null
                                ? 'N/A'
                                : $city->country->isoCode;

                            $regionCode = $city->subdivisions === []
                                ? 'N/A'
                                : $city->subdivisions[0]->isoCode;
                            $latitude = round((float) $city->location->latitude, 3);
                            $longitude = round((float) $city->location->longitude, 3);
                        } catch (AddressNotFoundException) {
                            //Bad luck, bad IP, nothing to do.
                        }

                        $hits = rand(0, (int) $probability2);

                        $analyticsPodcasts[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'duration' => rand(60, 3600),
                            'bandwidth' => rand(1000000, 10000000),
                            'hits' => $hits,
                            'unique_listeners' => $hits,
                        ];
                        $analyticsPodcastsByHour[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'hour' => rand(0, 23),
                            'hits' => $hits,
                        ];
                        $analyticsPodcastsByCountry[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'country_code' => $countryCode,
                            'hits' => $hits,
                        ];
                        $analyticsPodcastsByEpisode[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'episode_id' => $episode->id,
                            'age' => $age,
                            'hits' => $hits,
                        ];
                        $analyticsPodcastsByPlayer[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'service' => $service,
                            'app' => $app,
                            'device' => $device,
                            'os' => $os,
                            'is_bot' => $isBot,
                            'hits' => $hits,
                        ];
                        $analyticsPodcastsByRegion[] = [
                            'podcast_id' => $podcast->id,
                            'date' => date('Y-m-d', $date),
                            'country_code' => $countryCode,
                            'region_code' => $regionCode,
                            'latitude' => $latitude,
                            'longitude' => $longitude,
                            'hits' => $hits,
                        ];
                    }
                }
                $this->db
                    ->table('analytics_podcasts')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcasts);
                $this->db
                    ->table('analytics_podcasts_by_hour')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcastsByHour);
                $this->db
                    ->table('analytics_podcasts_by_country')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcastsByCountry);
                $this->db
                    ->table('analytics_podcasts_by_episode')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcastsByEpisode);
                $this->db
                    ->table('analytics_podcasts_by_player')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcastsByPlayer);
                $this->db
                    ->table('analytics_podcasts_by_region')
                    ->ignore(true)
                    ->insertBatch($analyticsPodcastsByRegion);
            }
        } else {
            echo "COULD NOT POPULATE DATABASE:\n\tCreate a podcast with episodes first.\n";
        }
    }
}