<?php

namespace App\Services;

use App\Models\Entry;
use App\Models\Student;
use Illuminate\Support\Facades\Cache;

class DoublerService
{
    protected $doublersCacheKey = 'doublers';
    protected $auditionCacheService;
    protected $tabulationService;
    /**
     * Create a new class instance.
     */
    public function __construct(AuditionCacheService $auditionCacheService, TabulationService $tabulationService)
    {
        $this->auditionCacheService = $auditionCacheService;
        $this->tabulationService = $tabulationService;
    }

    public function getDoublers(): \Illuminate\Database\Eloquent\Collection
    {
        return Cache::remember($this->doublersCacheKey, 10, function () {
            $students = Student::withCount('entries')
                ->with('entries')
                ->havingRaw('entries_count > ?', [1])
                ->get();
            return $students;
        });
    }

    public function getDoublerInfo($id): Array
    {
        // When getting a doubler we need to know
        // 1) What their entrires are
        // 2) For each audition they're entered in, what is their rank
        // 3) For each audition they'er entered in, how many entries are unscored
        // 4) How many are accepted on that instrument
        $doubler = $this->getDoublers()->firstWhere('id',$id);
        $info = [];

        foreach ($doubler->entries as $entry) {
            $info[] = [
                'auditionID' => $entry->audition_id,
                'auditionName' => $this->auditionCacheService->getAudition($entry->audition_id)->name,
                'rank' => $this->tabulationService->entryRank($entry),
                'unscored' => $this->tabulationService->remainingEntriesForAudition($entry->audition_id)
            ];
            $entry->audition = $this->auditionCacheService->getAudition($entry->audition_id);
        }

        return $info;
    }


    public function entryIsDoubler(Entry $entry): bool
    {
        // Return true if $entry->student_id is associated with a student in the collection from $this->getDoublers()
        return $this->getDoublers()->contains('id', $entry->student_id);
    }
}