<?php

namespace App\Dataclasses;

class TuneVariant
{
    private DatabaseFolkTuneDetails $Tune;
    public string $ID;
    public array $Parts;

    public function __construct(DatabaseFolkTuneDetails $tuneDetails, array $assocArray)
    {
        $this->ID = $assocArray['ID'];
        $this->Tune = $tuneDetails;

        $temp = json_decode($assocArray['Parts'], associative: true, flags: JSON_THROW_ON_ERROR);
        foreach($temp as $part)
            $this->Parts[] = new TuneVariantPart($part);
    }


    public function Build(): string
    {
        $builder = "X: {$this->Tune->ID}.{$this->ID}
T: {$this->Tune->Title}
S: {$this->Tune->Copyright}
M: {$this->Parts[0]->TimeSignature}
K: {$this->Parts[0]->KeySignature}
L: 1/8";
        $counter = 0;
        $letters = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J'];
        foreach($this->Parts as $part)
        {
            $builder .= "
P: {$letters[$counter]} Part
{$part->ABCNotation}";
            $counter = $counter + 1;
        }
        return $builder;
    }
}