<?php
namespace ProVM\Emails\Repository;

use PDO;
use PDOException;
use Exception;
use ProVM\Common\Define\Model;
use ProVM\Common\Exception\Database\BlankResult;
use Psr\Log\LoggerInterface;
use ProVM\Common\Implement\Repository;
use Safe\DateTimeImmutable;
use Safe\Exceptions\ErrorfuncException;

class Message extends Repository
{
    public function __construct(PDO $connection, LoggerInterface $logger, \ProVM\Common\Factory\Model $factory)
    {
        parent::__construct($connection, $logger);
        $this->setTable('messages')
            ->setFactory($factory);
    }

    protected \ProVM\Common\Factory\Model $factory;
    public function getFactory(): \ProVM\Common\Factory\Model
    {
        return $this->factory;
    }
    public function setFactory(\ProVM\Common\Factory\Model $factory): Message
    {
        $this->factory = $factory;
        return $this;
    }

    protected function fieldsForUpdate(): array
    {
        return $this->fieldsForInsert();
    }
    protected function fieldsForInsert(): array
    {
        return [
            'uid',
            'mailbox_id',
            'position',
            'subject',
            'from',
            'date_time'
        ];
    }
    protected function fieldsForCreate(): array
    {
        return $this->fieldsForUpdate();
    }
    protected function valuesForUpdate(Model $model): array
    {
        return array_merge($this->valuesForInsert($model), [
            $model->getId()
        ]);
    }
    protected function valuesForInsert(Model $model): array
    {
        return [
            $model->getUID(),
            $model->getMailbox()->getId(),
            $model->getPosition(),
            $model->getSubject(),
            $model->getFrom(),
            $model->getDateTime()->format('Y-m-d H:i:s')
        ];
    }
    protected function defaultFind(Model $model): Model
    {
        return $this->fetchByUID($model->getUID());
    }

    protected function valuesForCreate(array $data): array
    {
        return [
            $data['uid'],
            $data['mailbox_id'],
            $data['position'],
            $data['subject'],
            $data['from'],
            $data['date_time']
        ];
    }
    protected function defaultSearch(array $data): Model
    {
        return $this->fetchByUID($data['uid']);
    }

    /**
     * @param array $row
     * @return \ProVM\Emails\Model\Message
     */
    public function load(array $row): \ProVM\Emails\Model\Message
    {
        $model = new \ProVM\Emails\Model\Message();
        $model
            ->setId($row['id'])
            ->setUID($row['uid'])
            ->setMailbox($this->getFactory()->find(\ProVM\Emails\Model\Mailbox::class)->fetchById($row['mailbox_id']))
            ->setPosition($row['position'])
            ->setSubject($row['subject'])
            ->setFrom($row['from'])
            ->setFactory($this->getFactory());
        try {
            $model->setDateTime(new DateTimeImmutable($row['date_time']));
        } catch (Exception | ErrorfuncException $e) {
            $this->getLogger()->error($e);
        }
        return $model;
    }

    public function save(Model &$model): void
    {
        parent::save($model);
        $valid_states = [
            'has_attachments',
            'valid_attachments',
            'downloaded_attachments'
        ];
        foreach ($valid_states as $state_name) {
            try {
                $model->getState($state_name);
            } catch (\Exception $e) {
                $data = [
                    'message_id' => $model->getId(),
                    'name' => $state_name
                ];
                $state = $this->getFactory()->find(\ProVM\Emails\Model\State\Message::class)->create($data);
                $model->addState($state);
            }
        }
        foreach ($model->getStates() as $state) {
            $state->setMessage($model);
            $this->getFactory()->find(\ProVM\Emails\Model\State\Message::class)->save($state);
        }
    }

    public function fetchByUID(string $uid): \ProVM\Emails\Model\Message
    {
        $query = "SELECT * FROM `{$this->getTable()}` WHERE `uid` = ?";
        return $this->fetchOne($query, [$uid]);
    }
    public function fetchByMailbox(int $mailbox_id): array
    {
        $query = "SELECT * FROM {$this->getTable()} WHERE mailbox_id = ?";
        return $this->fetchMany($query, [$mailbox_id]);
    }
    public function fetchByMailboxAndPosition(int $mailbox_id, int $start, int $amount): array
    {
        $query = "SELECT * FROM {$this->getTable()} WHERE mailbox_id = ? AND position BETWEEN ? AND ? LIMIT {$amount}";
        return $this->fetchMany($query, [$mailbox_id, $start, $start + $amount]);
    }
}