<?php

namespace App\Services\Community;

use App\Models\Game\Permission;
use App\Models\User;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Cache;

class StaffService
{
    /**
     * @return Collection<int, Permission>
     */
    public function fetchStaffPositions(): Collection
    {
        $cacheEnabled = setting('enable_caching') === '1';

        if ($cacheEnabled && Cache::has('staff_positions')) {
            /** @var Collection<int, Permission> */
            return Cache::get('staff_positions');
        }

        /** @var \App\Models\User|null $user */
        $user = Auth::user();
        $userRank = $user ? $user->rank : 0;

        /** @var Collection<int, Permission> $employees */
        $employees = Permission::query()
            ->select('id', 'rank_name', 'badge', 'staff_color', 'job_description')
            ->when($userRank < (int) setting('min_rank_to_see_hidden_staff'), fn ($query) => $query->where('hidden_rank', false))
            ->where('id', '>=', setting('min_staff_rank'))
            ->orderByDesc('id')
            ->with(['users' => function ($query) use ($userRank): void {
                /** @var \Illuminate\Database\Eloquent\Builder $query */
                $query->select('id', 'username', 'rank', 'motto', 'look', 'hidden_staff', 'online')
                    ->when($userRank < (int) setting('min_rank_to_see_hidden_staff'), fn ($query) => $query->where('hidden_staff', false));
            }])
            ->get();

        if ($cacheEnabled) {
            $cacheTimer = (int) setting('cache_timer');
            Cache::put('staff_positions', $employees, now()->addMinutes($cacheTimer));
        }

        return $employees;
    }

    /**
     * @return array<int, int>
     */
    public function fetchEmployeeIds(): array
    {
        $cacheEnabled = setting('enable_caching') === '1';

        if ($cacheEnabled && Cache::has('staff_ids')) {
            /** @var array<int, int> */
            return Cache::get('staff_ids');
        }

        /** @var array<int, int> $staffIds */
        $staffIds = User::select('id')
            ->where('rank', '>=', setting('min_staff_rank'))
            ->get()
            ->pluck('id')->toArray();

        if ($cacheEnabled) {
            $cacheTimer = (int) setting('cache_timer');
            Cache::put('staff_ids', $staffIds, now()->addMinutes($cacheTimer));
        }

        return $staffIds;
    }
}