<?php

namespace App\Http\Controllers\User;

use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Auth;
use App\Models\Diagnosa;
use App\Models\HasilAhp;
use Illuminate\Support\Collection;
use Barryvdh\DomPDF\Facade\Pdf;


class DiagnosisHasilController extends Controller
{
    public function index()
    {
        $userId = Auth::id();

        // 1. Ambil Diagnosa Biasa
        $diagnosas = Diagnosa::with('kecerdasan')
            ->where('user_id', $userId)
            ->get()
            ->map(function($d) {
                return [
                    'tanggal' => $d->created_at,
                    'kecerdasan'  => $d->kecerdasan ? $d->kecerdasan->nama : 'Tidak Diketahui',
                    'skor'    => number_format($d->presentase, 2) . '%',
                    'type'    => 'Diagnosa',
                ];
            });

        // 2. Ambil Hasil AHP
        $ahps = HasilAhp::with('jurusan')
            ->where('user_id', $userId)
            ->get()
            ->map(function($h) {
                return [
                    'tanggal' => $h->created_at,
                    'jurusan' => $h->jurusan->nama,
                    'skor'    => number_format($h->score * 100, 2) . '%',
                    'type'    => 'AHP',
                ];
            });

        // 3. Gabungkan dan urutkan berdasarkan tanggal (terbaru di atas)
        $all = $diagnosas
            ->merge($ahps)
            ->sortByDesc('tanggal')
            ->values()
            ->map(function($item) {
                // Format tanggal jadi string
                $item['tanggal'] = $item['tanggal']->format('d-m-Y');
                return $item;
            });

        return view('user.diagnosishasil', ['records' => $all]);
    }

    public function exportPdf()
    {
        $userId = Auth::id();

        // Gabungkan data Diagnosa & AHP seperti di index()
        $diagnosas = Diagnosa::with('kecerdasan')
    ->where('user_id', $userId)
    ->get()
    ->map(function($d) {
        return [
            'tanggal'    => $d->created_at,
            // optional() akan aman: jika null, dikembalikan null
            'kecerdasan' => optional($d->kecerdasan)->nama ?? '–',
            'skor'       => number_format($d->presentase, 2) . '%',
            'type'       => 'Diagnosa',
        ];
    });
        $ahps = HasilAhp::with('jurusan')
            ->where('user_id', $userId)
            ->get()
            ->map(function($h) {
                return [
                    'tanggal' => $h->created_at,
                    'jurusan' => $h->jurusan->nama,
                    'skor'    => number_format($h->score * 100, 2) . '%',
                    'type'    => 'AHP',
                ];
            });

        $records = $diagnosas
            ->merge($ahps)
            ->sortByDesc('tanggal')
            ->values()
            ->map(function($item) {
                $item['tanggal'] = $item['tanggal']->format('d-m-Y');
                return $item;
            });

        // generate PDF dari view 'user.diagnosishasil_pdf'
        // generate PDF dari view
        $pdf = Pdf::loadView('user.rr', ['records' => $records])
          ->setPaper('a4', 'portrait');


        return $pdf->download('riwayat_diagnosa_ahp_'.date('Ymd').'.pdf');
    }
}