<?php

namespace App\Http\Controllers;

use App\Models\datakriteria;
use Illuminate\Http\Request;
use App\Models\datasubkriteria;
use App\Models\perbandingans;
use App\Models\prioritassubkriteria;

class DataSubKriteriaController extends Controller
{
    
    public function index()
    {
        $datasubkriterias = datakriteria::all();
        return view('pages.dataSubKriteria', compact('datasubkriterias'));
    }
    
    public function showkriteria()
    {
        $datasubkriterias = datakriteria::all();
        return view('pages.tSubkriteria', compact('datasubkriterias'));
    }
    public function showparameter()
    {
        $datakriterias = datakriteria::all();
        return view('pages.parameter', compact('datakriterias'));
    }
    public function tabelparameter()
    {
        $datasubkriterias = datakriteria::all();
        $datasubkriterias = DataSubKriteria::all();
        return view('pages.parameter', compact('datasubkriterias','datasubkriterias'));
    }
    public function create()
    {
        return view('pages.tSubkriteriariteria');
    }
    public function tabelsubkriteria()
    {
        $datasubkriterias = DataSubKriteria::all();
        return view('pages.dataSubKriteria', compact('datasubkriterias'));
    }
    public function store(Request $request)
    {
        $validatedData = $request->validate([
            'kodekriteria' => 'required',
            'kodesubkriteria' => 'required',
            'namasubkriteria' => 'required',
            'nilaibobot' => 'required',
        ]);
    
        $datasubkriterias = new datasubkriteria;
        $datasubkriterias->id_kriteria = $validatedData['kodekriteria'];
        $datasubkriterias->kode_subkriteria = $validatedData['kodesubkriteria'];
        $datasubkriterias->nama_subkriteria = $validatedData['namasubkriteria'];
        $datasubkriterias->nilai_bobot = $validatedData['nilaibobot'];
        $datasubkriterias->save();
    
        
        return redirect('/parameter')->with('success', 'Data Sub Kriteria berhasil disimpan.');
    }

    public function hapus($id)
    {
        $datasubkriterias = datasubkriteria::find($id);

        if ($datasubkriterias) {
            $datasubkriterias->delete();
            return redirect()->back()->with('success', 'Data berhasil dihapus.');
        } else {
            return redirect()->back()->with('error', ' Data gagal dihapus');
        }
    }
    public function edit($id)
    {
        $datasubkriterias = datasubkriteria::find($id);
        return view('pages.eparameter', compact('datasubkriterias'));
    }

    // Metode untuk memperbarui data yang diubah
    public function update(Request $request, $id)
    {
        $datasubKriterias = datasubkriteria::find($id);
        $datasubKriterias->id_kriteria = $request->input('kodekriteria');
        $datasubKriterias->kode_subkriteria = $request->input('kodesubkriteria');
        $datasubKriterias->nama_subkriteria = $request->input('namasubkriteria');
        $datasubKriterias->nilai_bobot = $request->input('nilaibobot');
        $datasubKriterias->save();

        // Redirect ke halaman yang sesuai atau lakukan tindakan lainnya
        return redirect()->back()->with('success', 'Data Sub Kriteria berhasil diperbarui.');
    }
    public function subkriteria($id_kriteria)
{
    $datakriteria = Datakriteria::findOrFail($id_kriteria);
    $subkriterias = datasubkriteria::where('id_kriteria', $id_kriteria)->get();
    return view('pages.dataSubKriteria', compact('datakriteria', 'subkriterias'));
}
public function storen(Request $request)
    {
        $request->validate([
            'subkriteria1' => 'required',
            'nilai_bobot' => 'required',
            'subkriteria2' => 'required',
        ]);
    
        $datasubkriterias = [
            'subkriteria1' => $request->subkriteria1,
            'subkriteria2' => $request->subkriteria2,
        ];

        
    
        $perbandingans = perbandingans::where($datasubkriterias)->first();
    
        if ($perbandingans) {
            $perbandingans->update([
                'nilai_bobot' => $request->nilai_bobot,
            ]);
        } else {
            perbandingans::create($datasubkriterias + ['nilai_bobot' => $request->nilai_bobot]);
        }
    
        return redirect()->back()->with('success', 'Data berhasil disimpan')->with('tabel-kriteria', true);
    }
    public function calculateNormalization()
{
    $datakriterias = datasubkriteria::all();
        $columnTotals = [];
        $nilaiBobotMatrix = [];
        $priorities = [];

        // Hitung nilai bobot dan total per kolom
        foreach ($datakriterias as $row) {
            $rowTotal = 0;
            foreach ($datakriterias as $column) {
                if ($row->kode_kriteria === $column->kode_kriteria) {
                    $nilai_bobot = 1; // Isi otomatis dengan nilai 1 jika xkriteria dan ykriteria sama
                } else {
                    $nilai_bobot = perbandingans::where('kriteria1', $row->kode_kriteria)
                        ->where('kriteria2', $column->kode_kriteria)
                        ->value('nilai_bobot');
                    if (!$nilai_bobot) {
                        $nilai_bobot = perbandingans::where('kriteria1', $column->kode_kriteria)
                            ->where('kriteria2', $row->kode_kriteria)
                            ->value('nilai_bobot');
                        if (!$nilai_bobot) {
                            $nilai_bobot = 0; // Set nilai_bobot menjadi 0 jika tidak ada data yang ditemukan
                        } else {
                            $nilai_bobot = 1 / floatval($nilai_bobot); // Menghitung nilai kebalikan setelah mengubah ke tipe float
                        }
                    }
                }
                $rowTotal += floatval($nilai_bobot);
                $columnTotals[$column->id] = isset($columnTotals[$column->id]) ? $columnTotals[$column->id] + floatval($nilai_bobot) : floatval($nilai_bobot);
                $nilaiBobotMatrix[$row->id][$column->id] = floatval($nilai_bobot);
            }
        }

        // Hitung nilai normalisasi dan prioritas
        foreach ($datakriterias as $rowIndex => $row) {
            $rowSum = 0;
            foreach ($datakriterias as $columnIndex => $column) {
                $normalizedValue = 0;
                if (isset($columnTotals[$column->id]) && $columnTotals[$column->id] != 0) {
                    $normalizedValue = $nilaiBobotMatrix[$row->id][$column->id] / $columnTotals[$column->id];
                }
                $rowSum += $normalizedValue;
            }
            $priority = $rowSum / count($datakriterias);
            $priorities[$row->id] = $priority;

            // Simpan nilai prioritas ke database
            $kriteria = datakriteria::find($row->id);
            $kriteria->priority = $priority;
            $kriteria->save();
        }
        foreach ($datakriterias as $rowIndex => $row) {
            // Hitung prioritas
            $priority = $rowSum / count($datakriterias);
    
            // Simpan hasil prioritas ke database
            prioritassubkriteria::create([
                'kriteria_id' => $row->id, // Sesuaikan dengan kolom yang sesuai di database
                'nilai_prioritas' => $priority,
                // Jika ada kolom lain yang perlu disimpan, tambahkan di sini
            ]);
        }

        // Hitung Lambda Max
        $lambdaMax = array_sum(array_map(function ($priority, $columnId) use ($columnTotals) {
            return $priority * $columnTotals[$columnId];
        }, $priorities, array_keys($priorities)));

        // Hitung CI dan CR
        $CI = ($lambdaMax - count($datakriterias)) / (count($datakriterias) - 1);
        $RI = 1.12; // Nilai Random Index untuk jumlah kriteria tertentu, sesuaikan dengan tabel RI
        $CR = $CI / $RI;

        // Kirim data ke view
        return view('pages.dataKriteria', compact('datakriterias', 'columnTotals', 'nilaiBobotMatrix', 'priorities', 'lambdaMax', 'CI', 'CR'));
    }
}