<?php

namespace sammo\Command\Nation;

use \sammo\DB;
use \sammo\Util;
use \sammo\JosaUtil;
use \sammo\General;
use \sammo\DummyGeneral;
use \sammo\ActionLogger;
use \sammo\GameConst;
use \sammo\LastTurn;
use \sammo\GameUnitConst;
use \sammo\Command;
use \sammo\MessageTarget;
use \sammo\Message;
use \sammo\CityConst;
use \sammo\Constraint\Constraint;
use \sammo\Constraint\ConstraintHelper;
use sammo\Enums\InheritanceKey;
use sammo\Event\Action;
use sammo\StaticEventHandler;

class che_천도 extends Command\NationCommand
{
    static protected $actionName = '천도';
    static public $reqArg = true;

    private $cachedDist = null;

    protected function argTest(): bool
    {
        if ($this->arg === null) {
            return false;
        }

        if (!key_exists('destCityID', $this->arg)) {
            return false;
        }
        if (CityConst::byID($this->arg['destCityID']) === null) {
            return false;
        }
        $destCityID = $this->arg['destCityID'];

        $this->arg = [
            'destCityID' => $destCityID,
        ];
        return true;
    }

    protected function init()
    {
        $general = $this->generalObj;

        $env = $this->env;

        $this->setCity();
        $this->setNation(['capset', 'gold', 'rice', 'capital']);

        $this->minConditionConstraints = [
            ConstraintHelper::OccupiedCity(),
            ConstraintHelper::BeChief(),
            ConstraintHelper::SuppliedCity(),
        ];
    }

    protected function initWithArg()
    {
        $this->setDestCity($this->arg['destCityID']);

        [$reqGold, $reqRice] = $this->getCost();

        if ($this->getDistance() === null) {
            $this->fullConditionConstraints = [ConstraintHelper::AlwaysFail('천도 대상으로 도달할 방법이 없습니다.')];
            return;
        }

        $this->fullConditionConstraints = [
            ConstraintHelper::OccupiedCity(),
            ConstraintHelper::OccupiedDestCity(),
            ConstraintHelper::BeChief(),
            ConstraintHelper::SuppliedCity(),
            ConstraintHelper::SuppliedDestCity(),
            ConstraintHelper::ReqNationValue('capital', '수도', '!=', $this->destCity['city'], '이미 수도입니다.'),
            ConstraintHelper::ReqNationGold(GameConst::$basegold + $reqGold),
            ConstraintHelper::ReqNationRice(GameConst::$baserice + $reqRice),
        ];
    }

    public function getCommandDetailTitle(): string
    {
        $name = $this->getName();

        $amount = number_format($this->env['develcost'] * 5);

        return "{$name}/1+거리×2턴(금쌀 {$amount}×2^거리)";
    }

    public function getCost(): array
    {
        $amount = $this->env['develcost'] * 5;
        $amount *= 2 ** $this->getDistance() ?? 50;

        return [$amount, $amount];
    }

    private function getDistance(): ?int
    {
        if ($this->cachedDist !== null) {
            return $this->cachedDist;
        }
        $srcCityID = $this->nation['capital'];
        $destCityID = $this->arg['destCityID'];
        $nationID = $this->nation['nation'];
        $distance = \sammo\calcCityDistance($srcCityID, $destCityID, [$nationID]) ?? 50;
        $this->cachedDist = $distance;

        return $distance;
    }

    public function getPreReqTurn(): int
    {
        return $this->getDistance() * 2;
    }

    public function getPostReqTurn(): int
    {
        return 0;
    }

    public function addTermStack(): bool
    {
        $lastTurn = $this->getLastTurn();
        $commandName = $this->getName();

        $general = $this->getGeneral();
        $nationID = $general->getNationID();
        $nationStor = \sammo\KVStorage::getStorage(DB::db(), $nationID, 'nation_env');

        $nationStor->last천도Trial = [$general->getVar('officer_level'), $general->getTurnTick()];

        if ($lastTurn->getCommand() != $commandName || $lastTurn->getArg() !== $this->arg) {
            $this->setResultTurn(new LastTurn(
                $commandName,
                $this->arg,
                1,
                $this->nation['capset']
            ));
            return false;
        }

        if ($lastTurn->getSeq() < $this->nation['capset']) {
            //NOTE: 최근에 천도, 증축이 일어났으면 리셋됨
            $this->setResultTurn(new LastTurn(
                $commandName,
                $this->arg,
                1,
                $this->nation['capset']
            ));
            return false;
        }

        if ($lastTurn->getTerm() < $this->getPreReqTurn()) {
            $this->setResultTurn(new LastTurn(
                $commandName,
                $this->arg,
                $lastTurn->getTerm() + 1,
                $this->nation['capset']
            ));
            return false;
        }

        return true;
    }

    public function getBrief(): string
    {
        $commandName = $this->getName();
        $destCityName = CityConst::byID($this->arg['destCityID'])->name;
        $josaRo = JosaUtil::pick($destCityName, '로');
        return "【{$destCityName}】{$josaRo} {$commandName}";
    }

    public function run(\Sammo\RandUtil $rng): bool
    {
        if (!$this->hasFullConditionMet()) {
            throw new \RuntimeException('불가능한 커맨드를 강제로 실행 시도');
        }

        $db = DB::db();

        $general = $this->generalObj;
        $generalID = $general->getID();
        $generalName = $general->getName();
        $date = $general->getTurnTime($general::TURNTIME_HM);

        $year = $this->env['year'];
        $month = $this->env['month'];

        $destCity = $this->destCity;
        $destCityID = $destCity['city'];
        $destCityName = $destCity['name'];

        $nationID = $general->getNationID();
        $nationName = $this->nation['name'];

        $josaRo = JosaUtil::pick($destCityName, '로');

        $logger = $general->getLogger();


        $general->addExperience(5 * ($this->getPreReqTurn() + 1));
        $general->addDedication(5 * ($this->getPreReqTurn() + 1));

        $josaYi = JosaUtil::pick($generalName, '이');
        $josaYiNation = JosaUtil::pick($nationName, '이');

        $db->update('nation', [
            'capital' => $destCityID,
            'capset' => $db->sqleval('capset + 1'),
        ], 'nation=%i', $nationID);
        \sammo\refreshNationStaticInfo();

        $general->increaseInheritancePoint(InheritanceKey::active_action, 1);
        $logger->pushGeneralActionLog("<G><b>{$destCityName}</b></>{$josaRo} 천도했습니다. <1>$date</>");
        $logger->pushGeneralHistoryLog("<G><b>{$destCityName}</b></>{$josaRo} <M>천도</>명령");
        $logger->pushNationalHistoryLog("<Y>{$generalName}</>{$josaYi} <G><b>{$destCityName}</b></>{$josaRo} <M>천도</> 명령");
        $logger->pushGlobalActionLog("<Y>{$generalName}</>{$josaYi} <G><b>{$destCityName}</b></>{$josaRo} <M>천도</>를 명령하였습니다.");
        $logger->pushGlobalHistoryLog("<S><b>【천도】</b></><D><b>{$nationName}</b></>{$josaYiNation} <G><b>{$destCityName}</b></>{$josaRo} <M>천도</>하였습니다.");

        $this->setResultTurn(new LastTurn($this->getName(), $this->arg, 0));
        StaticEventHandler::handleEvent($this->generalObj, $this->destGeneralObj, $this::class, $this->env, $this->arg ?? []);
        $general->applyDB($db);
        return true;
    }

    public function exportJSVars(): array
    {
        return [
            'procRes' => [
                'cities' => \sammo\JSOptionsForCities(),
                'distanceList' => new \stdClass(),
            ],
        ];
    }
}
