<?php
/**
 * Holds the osu!leaderboard backend.
 * @package Sakura
 */

namespace Sakura;

use Carbon\Carbon;
use Illuminate\Database\Query\Builder;
use stdClass;

/**
 * osu!leaderboard backend.
 * @package Sakura
 * @author Julian van de Groep <me@flash.moe>
 */
class OsuLeaderboard
{
    private const ENDPOINT = "https://osu.ppy.sh/api/";

    protected $apiKey;

    public function __construct(string $apiKey)
    {
        $this->apiKey = $apiKey;
    }

    public function purge(Carbon $before): void
    {
        DB::table('osu_leaderboard')
            ->where('updated_on', '<', $before)
            ->delete();
    }

    public function update($osu, User $user, int $mode = 0): void
    {
        // skip if the user hasn't been online for a month
        if ($user->lastOnline < time() - 30 * 24 * 60 * 60) {
            return;
        }

        $osu_user = $this->apiGetUser($osu, $mode);

        if (!$osu_user || $osu_user->pp_raw < 1) {
            return;
        }

        $exists = DB::table('osu_leaderboard')
            ->where(is_int($osu) ? 'osu_user_id' : 'osu_username', $osu)
            ->where('user_id', $user->id)
            ->where('osu_game_mode', $mode)
            ->count() > 1;

        $data = [
            'user_id' => $user->id,
            'username' => $user->username,

            'osu_user_id' => intval($osu_user->user_id),
            'osu_username' => $osu_user->username,

            'osu_game_mode' => $mode,

            'osu_count_300' => intval($osu_user->count300),
            'osu_count_100' => intval($osu_user->count100),
            'osu_count_50' => intval($osu_user->count50),

            'osu_count_ss' => intval($osu_user->count_rank_ss),
            'osu_count_s' => intval($osu_user->count_rank_s),
            'osu_count_a' => intval($osu_user->count_rank_a),

            'osu_play_count' => intval($osu_user->playcount),
            'osu_score_ranked' => intval($osu_user->ranked_score),
            'osu_score_total' => intval($osu_user->total_score),
            'osu_rank' => intval($osu_user->pp_rank),

            'osu_country' => $osu_user->country,
            'osu_rank_country' => intval($osu_user->pp_country_rank),

            'osu_performance' => floatval($osu_user->pp_raw),
            'osu_accuracy' => floatval($osu_user->accuracy),
            'osu_level' => floatval($osu_user->level),

            'updated_on' => Carbon::now(),
        ];

        if ($exists) {
            DB::table('osu_leaderboard')
                ->where('osu_user_id', $data->osu_user_id)
                ->where('user_id', $data->user_id)
                ->where('osu_game_mode', $data->mode)
                ->update($data);
        } else {
            DB::table('osu_leaderboard')
                ->insert($data);
        }
    }

    private function apiGetUser($user, int $mode = 0): ?stdClass
    {
        $result = json_decode(
            Net::request(static::ENDPOINT . "get_user?k={$this->apiKey}&u={$user}&m={$mode}")
        );

        if ($result === false || count($result) < 1) {
            return null;
        }

        return $result[0];
    }
}