<?php
namespace XaiCorp\AbcParser\Domain\Core;

use Enzyme\Axiom\Atoms\IntegerAtom;
use Enzyme\Axiom\Atoms\StringAtom;
use Webpatser\Uuid\Uuid;
use XaiCorp\AbcParser\Domain\Atoms\UnsignedIntegerAtom;

class Tune implements EntityInterface
{
    use IdentityTrait;

    /**
     * @var Int
     */
    protected $index = 1;

    /**
     * @var array
     */
    protected $titles = [];

    /**
     * @var array
     */
    protected $authors = [];

    /**
     * @var array
     */
    protected $composers = [];

    /**
     * @var array
     */
    protected $groups    = [];

    /**
     * multiline history
     * @var array
     */
    protected $history   = [];

    /**
     * @var array
     */
    protected $origins = [];

    /**
     * @var array
     */
    protected $rhythms = [];

    /**
     * @var Setting[]
     */
    protected $tuneSettings;

    /**
     * @var string
     */
    protected $music = '';

//    public static $propertyNames = [
//        'X' => 'id',
//        'T' => 'Title',
//        'A' => 'Author',
//        'C' => 'Composer',
//        'G' => 'Group,',
//        'H' => 'History',
//        'O' => 'Origin',
//        'R' => 'Rhythm',
//    ];

    public function __construct(array $params, Uuid $identity = null)
    {
        $this->setIdentity($identity);
        foreach ($params as $attribute => $value) {
            $this->set($attribute, $value);
        }
    }

    public function getETag()
    {
        return md5(implode(';', array_flatten([
            $this->getTitles(),
            $this->getAuthors(),
            $this->getComposers(),
            $this->getGroups(),
            $this->getHistory(),
            $this->getOrigins(),
            $this->getRhythms(),
            //TODO: add settings
        ])));
    }

    /**
     * @param UnsignedIntegerAtom $index
     * @return $this
     */
    public function setIndex(UnsignedIntegerAtom $index) : Tune
    {
        $this->index = $index->getValue();

        return $this;
    }

    /**
     * @return Int
     */
    public function getIndex() : int
    {
        return $this->index;
    }

    /**
     * @return string[]
     */
    public function getTitles() : array
    {
        return $this->titles;
    }

    /**
     * @param string $title
     * @return $this
     * @deprecated
     */
    public function addTitle(string $title) : Tune
    {
        $this->titles[] = $title;

        return $this;
    }

    /**
     * @param Author $author
     * @return $this
     */
    public function addAuthor(Author $author) : Tune
    {
        $this->authors[] = $author;

        return $this;
    }

    /**
     * @return Author[]
     */
    public function getAuthors() : array //TODO: PersonCollection
    {
        return $this->authors;
    }

    /**
     * @param Composer $composer
     * @return $this
     */
    public function addComposer(Composer $composer) : Tune
    {
        $this->composers[] = $composer;

        return $this;
    }

    /**
     * @return Composer[]
     */
    public function getComposers()
    {
        return $this->composers;
    }

    /**
     * @param string $group
     * @return $this
     */
    public function addGroup(string $group) : Tune
    {
        $this->groups[] = $group;

        return $this;
    }

    /**
     * @return array
     */
    public function getGroups()
    {
        return $this->groups;
    }

    /**
     * @param string $historyLine
     * @return $this
     */
    public function addHistoryLine(string $historyLine)
    {
        $this->history[] = $historyLine;

        return $this;
    }

    /**
     * @return array
     */
    public function getHistory()
    {
        return $this->history;
    }

    /**
     * @param string $origin
     * @return $this
     */
    public function addOrigin(string $origin)
    {
        $this->origins[] = $origin;

        return $this;
    }

    /**
     * @return array
     */
    public function getOrigins()
    {
        return $this->origins;
    }

    /**
     * @param StringAtom $rhythm
     * @return $this
     */
    public function addRhythm(string $rhythm)
    {
        $this->rhythms[] = $rhythm;

        return $this;
    }

    /**
     * @return array
     */
    public function getRhythms()
    {
        return $this->rhythms;
    }

    /**
     * @param Setting $tuneSetting
     * @return $this
     */
    public function addSetting(Setting $tuneSetting)
    {
        $this->tuneSettings[] = $tuneSetting;

        return $this;
    }

    /**
     * @return Setting[]
     */
    public function getSettings()
    {
        return $this->tuneSettings;
    }


    /**
     * @param $attribute
     * @param $value
     */
    protected function set($attribute, $value)
    {
        switch ($attribute) {
            case 'index':
                call_user_func([$this, 'set'.$attribute], $value);
                break;

            case 'Authors':
                call_user_func([$this, 'addAuthor'], $value);
                break;

            case 'Composers':
                $this->addComposer($value);
                break;

            case 'settings':
                foreach ($value as $key => $settingParams) {
                    $this->addSetting(Setting::create($settingParams));
                }
                break;

            default:
                $this->append($attribute, $value);
        }
    }

    protected function append($attribute, MultivalueAttribute $values)
    {
        $method = 'add' . substr($attribute, 0, -1);
        foreach ($values->toArray() as $value) {
            call_user_func([$this, $method], $value);
        }
    }

    /**
     * Checks whether this model has the given attribute set.
     *
     * @param string $attribute
     *
     * @return boolean
     */
    public function has($attribute)
    {
        return isset($this->{$attribute});
    }

    /**
     * Get the value associated with the given attribute.
     *
     * @param string $attribute
     *
     * @return mixed
     */
    public function get($attribute)
    {
        // TODO: Implement get() method.
    }

    /**
     * Get all the attributes associated with this model.
     *
     * @return array
     */
    public function getAll()
    {
        // TODO: Implement getAll() method.
    }

    /**
     * @param StringAtom $musicLine
     * @return $this
     * @deprecated this should be on the setting
     */
    public function addMusicLine(string $musicLine)
    {
        $this->music .= $musicLine . PHP_EOL;

        return $this;
    }

    public function getMusic()
    {
        return $this->music;
    }

    public function merge(Tune $source)
    {
        //TODO
        $this->titles = array_merge($this->getTitles(), $source->getTitles());
        $this->authors = array_merge($this->getAuthors(), $source->getAuthors());
        $this->composers = array_merge($this->getComposers(), $source->getComposers());
        $this->history = array_merge($this->getHistory(), $source->getHistory());
        $this->tuneSettings = array_merge($this->getSettings(), $source->getSettings());
        return $this;
    }
}