<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\CuSubmission;
use App\Models\PenilaianAkhir;
use App\Models\CuSelection;
use App\Models\KategoriCu;
use App\Models\BobotKriteria;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class CuVerificationController extends Controller
{
    public function index()
    {
        // Ringkasan CU yang sudah disetujui
        $rows = DB::table('cu_submission as cs')
            ->join('kategori_cu as kc', 'cs.kategori_cu_id', '=', 'kc.id')
            ->join('peserta_profile as pp', 'cs.peserta_id', '=', 'pp.user_id')
            ->join('users as u', 'pp.user_id', '=', 'u.id')
            ->where('cs.status', CuSubmission::STATUS_APPROVED)
            ->select(
                'cs.peserta_id',
                'u.name',
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 1 THEN cs.skor END),0) AS Kompetisi'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 2 THEN cs.skor END),0) AS Pengakuan'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 3 THEN cs.skor END),0) AS Penghargaan'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 4 THEN cs.skor END),0) AS Karir_Organisasi'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 5 THEN cs.skor END),0) AS Hasil_Karya'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 6 THEN cs.skor END),0) AS PAK'),
                DB::raw('COALESCE(SUM(CASE WHEN kc.bidang_id = 7 THEN cs.skor END),0) AS Kewirausahaan'),
                DB::raw('SUM(cs.skor) AS total_mentah')
            )
            ->groupBy('cs.peserta_id', 'u.name')
            ->get();

        $maxRaw = $rows->max('total_mentah') ?: 1;

        // Transformasi: sertakan semua bidang agar Blade dapat mengakses properti
        $rows->transform(function ($r) use ($maxRaw) {
            return (object) [
                'peserta_id'       => $r->peserta_id,
                'name'             => $r->name,
                'Kompetisi'        => $r->Kompetisi,
                'Pengakuan'        => $r->Pengakuan,
                'Penghargaan'      => $r->Penghargaan,
                'Karir_Organisasi' => $r->Karir_Organisasi,
                'Hasil_Karya'      => $r->Hasil_Karya,
                'PAK'              => $r->PAK,
                'Kewirausahaan'    => $r->Kewirausahaan,
                'total_mentah'     => $r->total_mentah,
                'normalized'       => round($r->total_mentah / $maxRaw, 4),
            ];
        });

        // Ambil semua submission yang masih pending
        $submissions = CuSubmission::with(['peserta', 'kategori'])
            ->where('status', CuSubmission::STATUS_PENDING)
            ->get();

        return view('admin.verifikasiberkas', compact('rows', 'submissions'));
    }

    public function approve(CuSubmission $submission)
{
    DB::transaction(function () use ($submission) {
        // 1️⃣ Tandai submission ini sebagai approved
        $submission->update([
            'status'      => CuSubmission::STATUS_APPROVED,
            'reviewed_at' => now(),
        ]);

        // 2️⃣ Kumpulkan semua CU yang sudah approved untuk peserta ini
        $approved = CuSubmission::with('kategori')
            ->where('peserta_id', $submission->peserta_id)
            ->where('status', CuSubmission::STATUS_APPROVED)
            ->get();

        // 3️⃣ Ambil top 4 per bidang, lalu dari hasilnya ambil top 10 overall
        $byBidang = $approved->groupBy(fn($item) => $item->kategori->bidang_id);
        $selected = collect();
        foreach ($byBidang as $group) {
            $selected = $selected->merge($group->sortByDesc('skor')->take(4));
        }
        $final = $selected->sortByDesc('skor')->take(10);

        // 4️⃣ Hitung total skor mentah dari CU yang terpilih
        $sumSkor = $final->sum('skor');

        // 5️⃣ Cari nilai tertinggi dari semua peserta (untuk normalisasi global)
        $maxTotalSkor = CuSubmission::where('status', CuSubmission::STATUS_APPROVED)
            ->groupBy('peserta_id')
            ->selectRaw('SUM(skor) as total')
            ->orderByDesc('total')
            ->value('total') ?: 1;

        // 6️⃣ Hitung skor CU yang sudah dinormalisasi (maksimal = 1)
        $normCu = round($sumSkor / $maxTotalSkor, 4);

        // 7️⃣ Ambil bobot kriteria untuk CU
        $bobot = BobotKriteria::pluck('bobot', 'nama_kriteria');
        $bCu = $bobot['CU'] ?? 0;

        // 8️⃣ Simpan/Update ke penilaian_akhir (PI & BI = 0 dulu)
        PenilaianAkhir::updateOrCreate(
            ['peserta_id' => $submission->peserta_id],
            [
                'skor_cu_normal' => $normCu,
                'skor_pi_normal' => 0.0000,
                'skor_bi_normal' => 0.0000,
                'total_akhir'    => round($normCu * $bCu, 4),
            ]
        );

        // 9️⃣ Buat record di cu_selection (pakai skor normalisasi)
        CuSelection::create([
            'submission_id'   => $submission->id,
            'peserta_id'      => $submission->peserta_id,
            'level_id'        => $submission->kategori->level_id,
            'selection_round' => 1,
            'status_lolos'    => 'pending',
            'skor_cu'         => $normCu,
            'selected_at'     => now(),
        ]);
    });

    return redirect()->route('admin.verification.index')
                     ->with('success', 'Submission CU berhasil disetujui.');
}


    public function reject(Request $request, CuSubmission $submission)
{
    $request->validate([
        'comment' => 'required|string',
    ]);

    $submission->status = CuSubmission::STATUS_REJECTED;
    $submission->comment = $request->comment;
    $submission->reviewed_at = now();
    $submission->save();

    // ✅ Redirect untuk mencegah browser mengulang GET ke URL POST
    return redirect()->route('admin.verification.index')->with('success', 'Submission berhasil ditolak.');
}


}