<?php

/** @noinspection PhpUnhandledExceptionInspection */

namespace App\Actions;

use App\Exceptions\TabulationException;
use App\Models\Entry;
use App\Models\ScoreSheet;
use App\Models\User;

class CalculateScoreSheetTotal
{
    public function __construct()
    {
    }

    public function __invoke(string $mode, Entry $entry, User $judge): array
    {
        $this->basicValidations($mode, $entry, $judge);
        $scoreSheet = ScoreSheet::where('entry_id', $entry->id)->where('user_id', $judge->id)->first();
        if (! $scoreSheet) {
            throw new TabulationException('No score sheet by that judge for that entry');
        }
        $subscores = match ($mode) {
            'seating' => $entry->audition->scoringGuide->subscores->where('for_seating', true)->sortBy('tiebreak_order'),
            'advancement' => $entry->audition->scoringGuide->subscores->where('for_advance', true)->sortBy('tiebreak_order'),
        };
        $scoreTotal = 0;
        $weightsTotal = 0;
        $scoreArray = [];
        foreach ($subscores as $subscore) {
            $weight = $subscore['weight'];
            $score = $scoreSheet->subscores[$subscore->id]['score'];
            $scoreArray[] = $score;
            $scoreTotal += ($score * $weight);
            $weightsTotal += $weight;
        }
        $finalScore = $scoreTotal / $weightsTotal;
        // put $final score at the beginning of the $ScoreArray
        array_unshift($scoreArray, $finalScore);
        return $scoreArray;
    }

    protected function basicValidations($mode, $entry, $judge): void
    {
        if ($mode !== 'seating' and $mode !== 'advancement') {
            throw new TabulationException('Invalid mode requested. Mode must be seating or advancement');
        }
        if (! $entry->exists()) {
            throw new TabulationException('Invalid entry provided');
        }
        if (! $judge->exists()) {
            throw new TabulationException('Invalid judge provided');
        }
    }
}