<?php
/**
 * Created by PhpStorm.
 * User: robin
 * Date: 10/1/16
 * Time: 5:32 PM
 */

namespace App\Business;


use App\DataAccess\SchedulesDataAccess;
use App\Dbo\StopsLiteRoutesLiteDbo;
use App\Dbo\StopsLiteRoutesLiteDboArray;
use App\Dbo\StopsSchedulesDbo;
use Carbon\Carbon;
use GuzzleHttp\Exception\ClientException;
use Luticate\Utils\Dbo\LuPaginatedDbo;

class SchedulesBusiness
{
    public static $days = ["sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday"];
    public static $dateFormat = "Y-m-d";
    public static $timeFormat = "H:i:s";

    protected static function getDataAccess()
    {
        return new SchedulesDataAccess();
    }

    public static function getScheduleTypeForDate(array $config, Carbon $date)
    {

        foreach ($config["scheduleTypes"] as $scheduleType) {
            if ($scheduleType["type"] == static::$days[$date->dayOfWeek]) {
                $from = Carbon::createFromFormat(static::$dateFormat, $scheduleType["dateFrom"]);
                $to = Carbon::createFromFormat(static::$dateFormat, $scheduleType["dateTo"]);
                if ($date->between($from, $to)) {
                    return $scheduleType;
                }
            }
        }

        foreach ($config["scheduleTypes"] as $scheduleType) {
            if ($scheduleType["type"] == static::$days[$date->dayOfWeek]) {
                return $scheduleType;
            }
        }

        foreach ($config["scheduleTypes"] as $scheduleType) {
            if ($scheduleType["type"] == "week") {
                $from = Carbon::createFromFormat(static::$dateFormat, $scheduleType["dateFrom"]);
                $to = Carbon::createFromFormat(static::$dateFormat, $scheduleType["dateTo"]);
                if ($date->between($from, $to)) {
                    return $scheduleType;
                }
            }
        }

        foreach ($config["scheduleTypes"] as $scheduleType) {
            if ($scheduleType["type"] == "week") {
                return $scheduleType;
            }
        }

        return $config["scheduleTypes"][0];
    }

    public static function getSchedulesForDate(array $schedules, Carbon $date)
    {
        foreach ($schedules as $schedule) {
            if (in_array($date->dayOfWeek, $schedule["week_days"])) {
                return $schedule["schedule"];
            }
        }
        return null;
    }

    public static function getSingle(array $scheduleType, StopsLiteRoutesLiteDbo $stop, Carbon $date, int $count)
    {
        $dbo = new StopsSchedulesDbo();
        $dbo->setRouteId($stop->getRouteId());
        $dbo->setStopId($stop->getStopId());
        try {
            $data = static::getDataAccess()->get($scheduleType["resourceId"], "allweek", $stop->getStopId(), $stop->getRouteId());
        }
        catch (ClientException $e) {
            if ($e->getCode() == 404) {
                $dbo->setSchedules([]);
                return $dbo;
            }
            else {
                throw $e;
            }
        }

        $schedulesCarbon = [];
        if (!is_null($data["data"]["schedules"])) {
            $schedules = static::getSchedulesForDate($data["data"]["schedules"], $date);

            for ($i = 0; $i < count($schedules) && $count > 0; ++$i) {
                $scheduleDate = Carbon::createFromFormat(static::$timeFormat . " " . static::$dateFormat, $schedules[$i] . " " . $date->toDateString());
                if ($scheduleDate->gte($date)) {
                    --$count;
                    $schedulesCarbon[] = $scheduleDate;
                }
            }
        }

        $dbo->setSchedules($schedulesCarbon);
        return $dbo;
    }

    public static function getMultiple(StopsLiteRoutesLiteDboArray $stops, Carbon $date, int $count)
    {
        $config = MiscBusiness::getConfig();

        $scheduleType = static::getScheduleTypeForDate($config, $date);

        $dbos = [];

        foreach ($stops->getArray() as $stop) {
            $dbo = static::getSingle($scheduleType, $stop, $date, $count);
            if (count($dbo->getSchedules()) < $count) {
                $count2 = $count - count($dbo->getSchedules());
                $date2 = $date->copy();
                $date2->addDay(1);
                $date2->setTime(0, 0, 0);
                $scheduleType2 = static::getScheduleTypeForDate($config, $date2);
                $dbo2 = static::getSingle($scheduleType2, $stop, $date2, $count2);
                $dbo->setSchedules(array_merge($dbo->getSchedules(), $dbo2->getSchedules()));
            }
            $dbos[] = $dbo;
        }

        return new LuPaginatedDbo(count($dbos), $dbos);
    }
}