<?php

namespace App\Entity;

use App\Repository\AlbumTrackRepository;
use Doctrine\ORM\Mapping as ORM;

/**
 * AlbumTrack persists individual tracks fetched from External.
 */
#[ORM\Entity(repositoryClass: AlbumTrackRepository::class)]
#[ORM\Table(name: 'album_tracks')]
#[ORM\UniqueConstraint(name: 'uniq_album_disc_track', columns: ['album_id', 'disc_number', 'track_number'])]
class AlbumTrack
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column(type: 'integer')]
    private ?int $id = null;

    #[ORM\ManyToOne(targetEntity: Album::class, inversedBy: 'tracks')]
    #[ORM\JoinColumn(nullable: false, onDelete: 'CASCADE')]
    private ?Album $album = null;

    #[ORM\Column(type: 'string', length: 64, nullable: true)]
    private ?string $externalTrackId = null;

    #[ORM\Column(type: 'integer')]
    private int $discNumber = 1;

    #[ORM\Column(type: 'integer')]
    private int $trackNumber = 1;

    #[ORM\Column(type: 'string', length: 512)]
    private string $name = '';

    #[ORM\Column(type: 'integer')]
    private int $durationMs = 0;

    #[ORM\Column(type: 'string', length: 1024, nullable: true)]
    private ?string $previewUrl = null;

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

    public function getAlbum(): ?Album
    {
        return $this->album;
    }

    public function setAlbum(?Album $album): void
    {
        $this->album = $album;
    }

    public function getExternalTrackId(): ?string
    {
        return $this->externalTrackId;
    }

    public function setExternalTrackId(?string $externalTrackId): void
    {
        $this->externalTrackId = $externalTrackId;
    }

    public function getDiscNumber(): int
    {
        return $this->discNumber;
    }

    public function setDiscNumber(int $discNumber): void
    {
        $this->discNumber = max(1, $discNumber);
    }

    public function getTrackNumber(): int
    {
        return $this->trackNumber;
    }

    public function setTrackNumber(int $trackNumber): void
    {
        $this->trackNumber = max(1, $trackNumber);
    }

    public function getName(): string
    {
        return $this->name;
    }

    public function setName(string $name): void
    {
        $this->name = $name;
    }

    public function getDurationMs(): int
    {
        return $this->durationMs;
    }

    public function setDurationMs(int $durationMs): void
    {
        $this->durationMs = max(0, $durationMs);
    }

    public function getPreviewUrl(): ?string
    {
        return $this->previewUrl;
    }

    public function setPreviewUrl(?string $previewUrl): void
    {
        $this->previewUrl = $previewUrl;
    }

    /**
     * Normalizes the track for template rendering.
     *
     * @return array{disc:int,track:int,name:string,duration_label:string,duration_seconds:int,preview_url:?string}
     */
    public function toTemplateArray(): array
    {
        $seconds = (int) floor($this->durationMs / 1000);
        $minutes = intdiv($seconds, 60);
        $remainingSeconds = $seconds % 60;

        return [
            'disc' => $this->discNumber,
            'track' => $this->trackNumber,
            'name' => $this->name,
            'duration_label' => sprintf('%d:%02d', $minutes, $remainingSeconds),
            'duration_seconds' => $seconds,
            'preview_url' => $this->previewUrl,
        ];
    }
}