<?php

namespace App\Repositories;

use App\Models\Divider;
use App\Models\Analysis;
use App\Models\Criteria;
use App\Models\Calculation;
use App\Models\IdealNegative;
use App\Models\IdealNegativeSolution;
use App\Models\IdealPositif;
use App\Models\IdealPositiveSolution;
use Illuminate\Support\Facades\DB;
use App\Models\MatrixNormalization;
use App\Models\ResultTopsis;
use App\Models\WeightNormalization;
use App\Repositories\BaseRepository;

class CalculationRepository extends BaseRepository
{
    protected $fieldSearchable = [
        
    ];

    public function getFieldsSearchable(): array
    {
        return $this->fieldSearchable;
    }

    public function model(): string
    {
        return Calculation::class;
    }

    public static function calcDivider() 
    {
        // hitung hasil pembagi/matrik keputusan
        $analysis = Analysis::with('alternatif', 'kriteria', 'subKriteria')->orderBy('id', 'asc')->get();
        foreach ($analysis->unique('criteria_id') as $item) {
            $penilaianKriteria = $analysis->where('criteria_id', $item->criteria_id);
            $hitung = 0;

            foreach ($penilaianKriteria as $value) {
                if ($value->sub_criteria_id == null) {
                    abort(403, "Masukkan nilai alternatif ". $value->alternatif->objek->name ."!");
                }
                $hitung += pow($value->subKriteria->value, 2);
            }

            $hitung = sqrt($hitung);

            // simpan
            $simpan = Divider::updateOrCreate(
                ['criteria_id' => $item->criteria_id],
                ['value' => $hitung]
            );
        }
    }

    public static function getMatrixNormalization() 
    {
        $data = MatrixNormalization::join('criteria', 'criteria.id', 'matrix_normalization.criteria_id')
            ->join('alternative', 'alternative.id', 'matrix_normalization.alternative_id')
            ->join('objeks', 'objeks.id', 'alternative.objek_id')
            ->select(
                'matrix_normalization.*', 
                'criteria.criteria_name', 
                'criteria.code',
                'objeks.name',
                'objeks.code as c',
                )
            ->orderBy('alternative.id', 'asc')
            ->get();   
        
        return $data;
    }

    public static function caclMatrixNormalization() 
    {
        $analysis = Analysis::with('alternatif', 'kriteria', 'subKriteria')->orderBy('id', 'asc')->get();  

        foreach ($analysis->unique('criteria_id') as $item) {
            $penilaianKriteria = $analysis->where('criteria_id', $item->criteria_id);
            $pembagi = Divider::where('criteria_id', $item->criteria_id)->first();

            foreach ($penilaianKriteria as $value) {
                $matriksNormalisasi = $value->subKriteria->value / $pembagi->value;

                // simpan
                $simpan = MatrixNormalization::updateOrCreate(
                    ['criteria_id' => $value->criteria_id, 'alternative_id' => $value->alternative_id],
                    ['value' => $matriksNormalisasi]
                );
            }
        }
    }

    public static function calcWeightNormalization() 
    {
        $matriksNormalisasi = self::getMatrixNormalization();
        foreach ($matriksNormalisasi->unique('criteria_id') as $item) {
            $matriksNormalisasiKriteria = $matriksNormalisasi->where('criteria_id', $item->criteria_id);
            $bobotKriteria = Criteria::where('id', $item->criteria_id)->firstOrFail();

            foreach ($matriksNormalisasiKriteria as $value) {
                $normalisasi_terbobot = $value->value * $bobotKriteria->value;
                $result_normalisasi_terbobot = round($normalisasi_terbobot, 3);

                // simpan
                $simpan = WeightNormalization::updateOrCreate(
                    ['criteria_id' => $value->criteria_id, 'alternative_id' => $value->alternative_id],
                    ['value' => $result_normalisasi_terbobot]
                );
            }
        }
    }

    public static function getWeightNormalization() 
    {
        $data = WeightNormalization::join('criteria', 'criteria.id', 'wight_normalization.criteria_id')
            ->join('alternative', 'alternative.id', 'wight_normalization.alternative_id')
            ->join('objeks', 'objeks.id', 'alternative.objek_id')
            ->select('wight_normalization.*', 'criteria.criteria_name', 'criteria.code', 'objeks.name', 'objeks.code as c')
            ->orderBy('alternative.id', 'asc')
            ->get();  
            
        return $data;
    }

    public static function getIdealPositif() 
    {
        $data = DB::table('ideal_positif as ip')
            ->join('criteria as k', 'k.id', 'ip.criteria_id')
            ->join('alternative as a', 'a.id', 'ip.alternative_id')
            ->join('objeks as o', 'o.id', 'a.objek_id')
            ->select('ip.*', 'k.criteria_name', 'k.code', 'o.name', 'o.code as c')
            ->orderBy('ip.id', 'asc')
            ->get();

        return $data; 
    }

    public static function calcIdealPositif() 
    {
        $bobotNormalisasi = self::getWeightNormalization();

        foreach ($bobotNormalisasi->unique('criteria_id') as $key => $item) {
            $dataBobotNormalisasi = $bobotNormalisasi->where('criteria_id', $item->criteria_id);

            $solusiIdealY = [];
            foreach ($dataBobotNormalisasi as $key => $value) {
                $solusiIdealY[] = $value->value;
            }

            $Ymax = ['value' => min($solusiIdealY), 'criteria_id' => $item->criteria_id];

            foreach ($dataBobotNormalisasi as $val) {
                $idealPositif = pow(($val->value - $Ymax['value']), 2);
                $resultIdealPositif = $idealPositif;
                $simpan = IdealPositif::updateOrCreate(
                    ['criteria_id' => $val->criteria_id, 'alternative_id' => $val->alternative_id],
                    ['value' => $resultIdealPositif]
                );
            }
        } 
    }

    public static function calcIdealNegatif() 
    {
        $bobotNormalisasi = self::getWeightNormalization();

        foreach ($bobotNormalisasi->unique('criteria_id') as $key => $item) {
            $dataBobotNormalisasi = $bobotNormalisasi->where('criteria_id', $item->criteria_id);

            $solusiIdealY = [];
            foreach ($dataBobotNormalisasi as $key => $value) {
                $solusiIdealY[] = $value->value;
            }

            $Ymin = ['value' => max($solusiIdealY), 'criteria_id' => $item->criteria_id];

            foreach ($dataBobotNormalisasi as $val) {
                $idealPositif = pow(($val->value - $Ymin['value']), 2);
                $resultIdealPositif = $idealPositif;
                $simpan = IdealNegative::updateOrCreate(
                    ['criteria_id' => $val->criteria_id, 'alternative_id' => $val->alternative_id],
                    ['value' => $resultIdealPositif]
                );
            }
        }
    }

    public static function getIdealNegative() 
    {
        $data = DB::table('ideal_negatif as in')
            ->join('criteria as k', 'k.id', 'in.criteria_id')
            ->join('alternative as a', 'a.id', 'in.alternative_id')
            ->join('objeks as o', 'o.id', 'a.objek_id')
            ->select('in.*', 'k.criteria_name', 'k.code', 'o.name', 'o.code as c')
            ->orderBy('in.id', 'asc')
            ->get();

        return $data; 
    }

    public static function calcIdeal() 
    {
        // ambil data bobot ternormalisasi
        $bobotNormalisasi = self::getWeightNormalization();

        // loop data bobot ternormalisasi berdasarkan criteria
        foreach ($bobotNormalisasi->unique('criteria_id') as $item) {
            // ambil data bobot ternormalisasi  yang criteria_id nya sesuai
            $dataBobotNormalisasi = $bobotNormalisasi->where('criteria_id', $item->criteria_id);

            // lakukan looping dan tampung hasilnya dalam array
            $solusiIdealY = [];
            foreach ($dataBobotNormalisasi as $value) {
                $solusiIdealY[] = $value->value;
            }

            // cari min max berdasarkan cost benefit kriteria
            $solusiIdealPositif = ['value' => min($solusiIdealY), 'criteria_id' => $item->criteria_id];

            $solusiIdealNegatif = ['value' => max($solusiIdealY), 'criteria_id' => $item->criteria_id];

            // hitung matrik solusi ideal tiap kriteria
            foreach ($dataBobotNormalisasi as $value) {
                $idealPositif = pow(($value->value - $solusiIdealPositif['value']), 2);
                $simpan = IdealPositif::updateOrCreate(
                    ['criteria_id' => $value->criteria_id, 'alternative_id' => $value->alternative_id],
                    ['value' => $idealPositif]
                );

                $idealNegatif = pow($value->value - $solusiIdealNegatif['value'], 2);                
                $simpan = IdealNegative::updateOrCreate(
                    ['criteria_id' => $value->criteria_id, 'alternative_id' => $value->alternative_id],
                    ['value' => $idealNegatif]
                );
            }
        }
    }

    public static function calcIdealSolution() 
    { 
        $idealPositif = self::getIdealPositif();
        $idealNegatif = self::getIdealNegative();

        // hitung solusi ideal positif
        foreach ($idealPositif as $key => $item) {
            $idealPositifD = $idealPositif->where('alternative_id', $item->alternative_id);
            $positifD = 0;

            foreach ($idealPositifD as $value) {
                $positifD += $value->value;
            }

            $simpan = IdealPositiveSolution::updateOrCreate(
                ['alternative_id' => $item->alternative_id],
                ['value' => sqrt($positifD)]
            );
        }

        // hitung solusi ideal negative
        foreach ($idealNegatif as $key => $item) {
            $idealNegatifD = $idealNegatif->where('alternative_id', $item->alternative_id);
            $negatifD = 0;

            foreach ($idealNegatifD as $value) {
                $negatifD += $value->value;
            }

            $simpan = IdealNegativeSolution::updateOrCreate(
                ['alternative_id' => $item->alternative_id],
                ['value' => sqrt($negatifD)]
            );
        }
    }

    // get solusi ideal
    public static function getSolusiIdealPositif() 
    { 
        $data = IdealPositiveSolution::join('alternative', 'alternative.id', 'ideal_positif_solution.alternative_id')
        ->join('objeks', 'objeks.id', 'alternative.objek_id')
        ->select('ideal_positif_solution.*', 'objeks.name', 'objeks.code')
        ->orderBy('ideal_positif_solution.id', 'asc')
        ->get();

        return $data;
    }

    public static function getSolusiIdealNegative() 
    { 
        $data = IdealNegativeSolution::join('alternative', 'alternative.id', 'ideal_negative_solution.alternative_id')
        ->join('objeks', 'objeks.id', 'alternative.objek_id')
        ->select('ideal_negative_solution.*', 'objeks.name', 'objeks.code')
        ->orderBy('ideal_negative_solution.id', 'asc')
        ->get();

        return $data;
    }

    public static function calcHasil() 
    {
        $solusiIdealPositif = self::getSolusiIdealPositif();
        $solusiIdealNegatif = self::getSolusiIdealNegative();

        $dataPositif = [];
        $dataNegatif = [];
        $hitung = [];

        foreach ($solusiIdealPositif as $item) {
            $dataPositif[] = [
                'alternative_id' => $item->alternative_id,
                'value' => $item->value,
            ];
        }

        foreach ($solusiIdealNegatif as $item) {
            $dataNegatif[] = [
                'alternative_id' => $item->alternative_id,
                'value' => $item->value,
            ];
        }

        foreach ($dataPositif as $item) {
            foreach ($dataNegatif as $value) {
                if ($value['alternative_id'] == $item['alternative_id']) {
                    $hitung = [
                        'alternative_id' => $item['alternative_id'],
                        'value' => $value['value'] / ($item['value'] + $value['value']),
                    ];
                }
            }

            $simpan = ResultTopsis::updateOrCreate(
                ['alternative_id' => $item['alternative_id']],
                ['nilai' => $hitung['value']]
            );

            $hitung = [];
        }
    }

    public static function getHasil() 
    {
        $data = ResultTopsis::join('alternative', 'alternative.id', 'result_topsis.alternative_id')
            ->join('objeks', 'objeks.id', 'alternative.objek_id')
            ->select('result_topsis.*', 'objeks.name', 'objeks.code')
            ->orderBy('result_topsis.id', 'asc')->get();

        return $data;    
    }
}