<?php
namespace ProVM\Emails\Model;

use DateTimeInterface;
use ProVM\Common\Define\Model;
use ProVM\Common\Exception\Database\BlankResult;
use ProVM\Common\Exception\Job\Stateless;
use ProVM\Emails;

class Job implements Model
{
    protected int $id;
    protected string $command;
    protected string $arguments;

    public function getId(): int
    {
        return $this->id;
    }
    public function getCommand(): string
    {
        return $this->command;
    }
    public function getArguments(): string
    {
        return $this->arguments ?? '';
    }

    public function setId(int $id): Job
    {
        $this->id = $id;
        return $this;
    }
    public function setCommand(string $command): Job
    {
        $this->command = $command;
        return $this;
    }
    public function setArguments(string $arguments): Job
    {
        $this->arguments = $arguments;
        return $this;
    }

    protected Emails\Repository\State\Job $stateRepository;
    public function getStateRepository(): Emails\Repository\State\Job
    {
        return $this->stateRepository;
    }
    public function setStateRepository(Emails\Repository\State\Job $repository): Job
    {
        $this->stateRepository = $repository;
        return $this;
    }

    protected array $states;
    public function getStates(): array
    {
        if (!isset($this->states)) {
            try {
                $this->setStates($this->getStateRepository()->fetchByJob($this->getId()));
            } catch (BlankResult $e) {
                return [];
            }
        }
        return $this->states;
    }
    public function addState(State\Job $state): Job
    {
        $this->states []= $state;
        return $this;
    }
    public function setStates(array $states): Job
    {
        foreach ($states as $state) {
            $this->addState($state);
        }
        return $this;
    }

    public function isExecuted(): bool
    {
        return $this->lastState()->getStatus() === State\Job::Executed;
    }
    public function lastState(): State\Job
    {
        if (count($this->getStates()) === 0) {
            throw new Stateless($this->getId());
        }
        return $this->getStates()[array_key_last($this->getStates())];
    }

    public function toArray(): array
    {
        return [
            'id' => $this->getId(),
            'command' => $this->getCommand(),
            'arguments' => $this->getArguments(),
            'states' => $this->getStates()
        ];
    }
    public function jsonSerialize(): mixed
    {
        return $this->toArray();
    }
}