<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

use function array_diff_key;
use function array_key_exists;
use function is_null;

class ScoringGuide extends Model
{
    use HasFactory;

    protected $guarded = [];

    protected $with = ['subscores'];

    public function auditions(): HasMany
    {
        return $this->hasMany(Audition::class)->orderBy('score_order');
    }

    public function subscores(): HasMany
    {
        return $this->hasMany(SubscoreDefinition::class);
    }

    /**
     * Validate a set of subscores. Expects an array in the form of subscore_id => score
     *
     * @return string
     */
    public function validateScores(array $prospective_score)
    {
        foreach ($this->subscores as $subscore) {
            if (! array_key_exists($subscore->id, $prospective_score)) {
                return 'A score must be provided for '.$subscore->name;
            }
            if (is_null($prospective_score[$subscore->id])) {
                return 'A score must be provided for '.$subscore->name;
            }
            if ($prospective_score[$subscore->id] > $subscore->max_score) {
                return 'The '.$subscore->name.' score must be less than or equal to '.$subscore->max_score;
            }
        }

        $subscore_ids = $this->subscores->pluck('id')->flip()->all();
        $diff = array_diff_key($prospective_score, $subscore_ids);
        if (! empty($diff)) {
            return 'Invalid scores submitted';
        }

        return 'success';
    }
}