<?php

declare(strict_types=1);

namespace App\Entity\Groups;

use App\Repository\Groups\ContingentSyncStateRepository;
use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;

/**
 * Bookkeeping for the scheduled contingent sync of a single hotel code.
 *
 * `changedAt` records when the sync last saw a day appear, vanish or switch status within the
 * horizon it had already reached; `horizonTo` is how far that reach extends.
 */
#[ORM\Entity(repositoryClass: ContingentSyncStateRepository::class)]
#[ORM\Table(name: 'contingent_sync_state')]
class ContingentSyncState
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column]
    private ?int $id = null;

    #[ORM\Column(length: 16, unique: true)]
    private ?string $hotelCode = null;

    /**
     * Superseded by $hotelCode, see {@see ContingentDay::$accommodation}.
     */
    #[ORM\OneToOne]
    #[ORM\JoinColumn(nullable: true, unique: true, onDelete: 'CASCADE')]
    private ?Accommodation $accommodation = null;

    /**
     * Last time the stored snapshot actually changed. Kept for operators, not exposed via the API.
     */
    #[ORM\Column(type: Types::DATETIME_IMMUTABLE, nullable: true)]
    private ?\DateTimeImmutable $changedAt = null;

    /**
     * Last successful sync, regardless of whether anything changed.
     */
    #[ORM\Column(type: Types::DATETIME_IMMUTABLE, nullable: true)]
    private ?\DateTimeImmutable $syncedAt = null;

    #[ORM\Column(type: Types::DATE_IMMUTABLE, nullable: true)]
    private ?\DateTimeImmutable $horizonTo = null;

    #[ORM\Column(type: Types::TEXT, nullable: true)]
    private ?string $lastError = null;

    #[ORM\Column]
    private int $failureCount = 0;

    public function __construct(?string $hotelCode = null)
    {
        $this->hotelCode = $hotelCode;
    }

    public function getId(): ?int
    {
        return $this->id;
    }

    public function getHotelCode(): ?string
    {
        return $this->hotelCode;
    }

    public function getAccommodation(): ?Accommodation
    {
        return $this->accommodation;
    }

    public function setAccommodation(?Accommodation $accommodation): self
    {
        $this->accommodation = $accommodation;

        return $this;
    }

    public function getChangedAt(): ?\DateTimeImmutable
    {
        return $this->changedAt;
    }

    public function setChangedAt(?\DateTimeImmutable $changedAt): self
    {
        $this->changedAt = $changedAt;

        return $this;
    }

    public function getSyncedAt(): ?\DateTimeImmutable
    {
        return $this->syncedAt;
    }

    public function setSyncedAt(?\DateTimeImmutable $syncedAt): self
    {
        $this->syncedAt = $syncedAt;

        return $this;
    }

    public function getHorizonTo(): ?\DateTimeImmutable
    {
        return $this->horizonTo;
    }

    public function setHorizonTo(?\DateTimeImmutable $horizonTo): self
    {
        $this->horizonTo = $horizonTo;

        return $this;
    }

    public function getLastError(): ?string
    {
        return $this->lastError;
    }

    public function setLastError(?string $lastError): self
    {
        $this->lastError = $lastError;

        return $this;
    }

    public function getFailureCount(): int
    {
        return $this->failureCount;
    }

    public function setFailureCount(int $failureCount): self
    {
        $this->failureCount = $failureCount;

        return $this;
    }

    public function recordFailure(string $error): self
    {
        $this->lastError = $error;
        ++$this->failureCount;

        return $this;
    }

    /**
     * Records a successful sync of a window ending at $horizonTo.
     *
     * The horizon only ever grows, so an ad-hoc run over a narrow window — say
     * `--horizon-months=1` while debugging — cannot discard the reach the scheduled full sync
     * established.
     */
    public function recordSuccess(\DateTimeImmutable $syncedAt, \DateTimeImmutable $horizonTo): self
    {
        $this->syncedAt = $syncedAt;
        $this->horizonTo = null === $this->horizonTo || $horizonTo > $this->horizonTo ? $horizonTo : $this->horizonTo;
        $this->lastError = null;
        $this->failureCount = 0;

        return $this;
    }
}