<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Models\ExamResult;
use Illuminate\Http\Request;

class ReportController extends Controller
{
    /**
     * Menampilkan daftar Karyawan (Trainee) beserta ringkasan progres mereka.
     */
    public function training()
    {
        // Ambil semua user dengan role 'trainee', beserta relasi hasil ujiannya
        $trainees = User::whereHas('roles', function ($query) {
            $query->where('name', 'trainee');
        })
        ->with('examResults') // Pastikan relasi examResults sudah dibuat di model User
        ->latest()
        ->paginate(15);

        return view('pages.admin.reports.training', compact('trainees'));
    }

    /**
     * Menampilkan detail riwayat training & ujian per individu.
     */
    public function showTraining(User $user)
    {
        // Pastikan user tersebut benar-benar trainee
        if (!$user->hasRole('trainee')) {
            abort(404, 'Data riwayat training tidak ditemukan atau user bukan karyawan.');
        }

        // Ambil riwayat ujian, relasikan ke data Soal/Sesi (Exam) dan Dokumen (SOP)
        $examHistory = ExamResult::where('user_id', $user->id)
            ->latest()
            ->get();

        // Kalkulasi Statistik Cepat
        $stats = [
            'total_exams' => $examHistory->count(),
            'passed'      => $examHistory->where('is_passed', true)->count(),
            'failed'      => $examHistory->where('is_passed', false)->count(),
            'avg_score'   => $examHistory->avg('score') ?? 0,
        ];

        return view('pages.admin.reports.show', compact('user', 'examHistory', 'stats'));
    }
}