<?php

namespace App\Services\Emisi;

use App\Models\ActivityCrf;
use App\Models\ActivityFormDetail;
use App\Models\ActivityGpc;
use App\Models\ActivityGpcOutput;
use App\Models\Energy1A;
use App\Models\EnergyPLN;
use App\Models\ReferenceEf;
use App\Models\ReferenceGpc;
use App\Enums\TransportationCategory;
use App\Services\SigdCrudService;


class GpcMappingService extends SigdCrudService
{
    public function __construct(ActivityGpcOutput $model)
    {
        $this->model = $model;
    }

    public function save($inventoryYear)
    {
        try {
            $dataBatch = [];
            $years = activityYearRange($inventoryYear);

            foreach ($years as $year) {
                $dataBatch = array_merge($dataBatch, $this->calcAndSave($inventoryYear, $year));
            }

            return $dataBatch;
        } catch (\Exception $e) {
            throw $e;
        }
    }

    private function calcPlnEmission($inventoryYear, $activityYear)
    {
        $dataForms = [];
        $activities = [];

        $sectorCode = 'energy';
        $formCode = 'pln';

        try {
            // Initialize activities
            $formSetting = $this->getDataSettingFormDetail($sectorCode, $formCode);
            foreach ($formSetting as $row) $activities[$row->activity_code] = 0;

            // Get data activities
            $formActivity = $this->getActivityFormDetailsByYear($inventoryYear, $activityYear, $sectorCode, $formCode);
            foreach ($formActivity as $row) $activities[$row->activity_code] = $row->activity_value ?? 0;

            $ef_listrik_terkoreksi = $activities['ef_listrik_terkoreksi'];
            $no = 1;
            foreach ($activities as $activity => $value) {
                if ($activity != 'ef_listrik_terkoreksi') {
                    $co2_ton = $value * $ef_listrik_terkoreksi;
                    $co2_gg = $co2_ton / 1000;

                    $dataForm = [
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'value' => $value,
                        'ef_listrik_terkoreksi' => $ef_listrik_terkoreksi,
                        'co2_ton' => $co2_ton,
                        'co2_gg' => $co2_gg,
                        'row_num' => $no++,
                    ];

                    $this->createOrUpdate([
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'row_status' => 1,
                    ], $dataForm, EnergyPLN::class);

                    $dataForms[] = $dataForm;
                }
            }
        } catch (\Exception $e) {
            throw $e;
        }
    }

    private function getDataGpcList()
    {
        $query = ReferenceGpc::rowActive()->orderByRowNum()->get();
        return $query;
    }

    public function calcAndSave($inventoryYear, $activityYear)
    {
        $dataForms = [];
        $activities = [];

        try {
            $this->calcPlnEmission($inventoryYear, $activityYear);

            // Get data activities
            $formActivity = $this->getActivityFormDetailsByYear($inventoryYear, $activityYear, 'waste', 'kependudukan');
            foreach ($formActivity as $row) $activities[$row->activity_code] = $row->activity_value ?? 0;

            $gpc_output['inventory_year'] = $inventoryYear;
            $gpc_output['activity_year'] = $activityYear;

            $gpc_output['population'] = $activities['jumlah_penduduk'] ?? 0;
            $gpc_output['area'] = $activities['luas_wilayah'] ?? 0;
            $gpc_output['gdp'] = $activities['pdb'] ?? 0;

            $gpcList = $this->getDataGpcList();

            foreach ($gpcList as $gpc) {
                $columnName = strtolower(str_replace('.', '_', $gpc->gpc_code));
                $gpc_output[$columnName] = null;

                // Handle PLN listrik sector
                if (strpos($gpc->sub_sector, 'pln_listrik_') === 0) {
                    list(, $activityCode) = explode('_', $gpc->sub_sector, 2);

                    $pln = EnergyPLN::rowActive()
                        ->where('activity_code', $activityCode)
                        ->where('inventory_year', $inventoryYear)
                        ->where('activity_year', $activityYear)
                        ->first();

                    $gpc_output[$columnName] = $pln->co2_gg ?? null;
                    continue;
                }

                // Handle transportation sector
                if ($gpc->sector === 'transportation' && $gpc->sub_sector !== null) {
                    $transCategories = TransportationCategory::getTransportationCategories($gpc->sub_sector);

                    $activities = Energy1A::rowActive()->where('category', $gpc->ipcc_code)
                        ->where('inventory_year', $inventoryYear)->where('activity_year', $activityYear)
                        ->whereIn('activity_code', $transCategories)->get();

                    $co2eq = $this->calculateCO2eq($activities);
                    $gpc_output[$columnName] = $co2eq ?? null;
                    continue;
                }

                // Handle CRF (3A, 3B, 3C) related IPCC codes
                if (!is_null($gpc->ipcc_code)) {
                    if (in_array($gpc->ipcc_code, ['3A', '3B', '3C'])) {
                        $gpc_output[$columnName] = $this->getCrfSumForCode($gpc->ipcc_code, $inventoryYear, $activityYear);
                    } else {
                        $crf = ActivityCrf::rowActive()->where('ws_code', $gpc->ipcc_code)
                            ->where('inventory_year', $inventoryYear)->where('activity_year', $activityYear)
                            ->first();

                        $gpc_output[$columnName] = $crf->co2eq ?? null;
                    }
                    continue;
                }

                // Handle energy_gpc sector
                if ($gpc->sector === 'energy_gpc') {
                    $gpc_output[$columnName] = $this->getEnergyGpcValue($columnName, $gpc, $inventoryYear, $activityYear);
                }
            }

            $this->createOrUpdate([
                'inventory_year' => $inventoryYear,
                'activity_year' => $activityYear,
                'row_status' => 1,
            ], $gpc_output);

            $dataForms[] = $gpc_output;

            return $dataForms;
        } catch (\Exception $e) {
            throw $e;
        }
    }

    private function calculateCO2eq($activities)
    {
        $co2 = $activities->sum('emission_co2');
        $ch4 = $activities->sum('emission_ch4');
        $n2o = $activities->sum('emission_n2o');
        $gwp = $this->getGWPValues();

        return ($co2 ? $co2 * $gwp['CO2']->value : 0) +
            ($ch4 ? $ch4 * $gwp['CH4']->value : 0) +
            ($n2o ? $n2o * $gwp['N2O']->value : 0);
    }

    // Helper function to handle CRF code 3A, 3B, 3C queries
    private function getCrfSumForCode($ipccCode, $inventoryYear, $activityYear)
    {
        $crfQuery = ActivityCrf::rowActive()->where('inventory_year', $inventoryYear)->where('activity_year', $activityYear);

        if ($ipccCode == '3B') {
            $crfQuery->where('ws_code', 'like', '3B%')->orWhere('ws_code', '3C1');
        } elseif ($ipccCode == '3C') {
            $crfQuery->where('ws_code', 'like', '3C%')->where('ws_code', '!=', '3C1');
        } else {
            $crfQuery->where('ws_code', 'like', '3A%');
        }

        return $crfQuery->sum('co2eq') ?: null;
    }

    // Helper function to handle energy_gpc values based on gpc code and subsector
    private function getEnergyGpcValue($gpcCode, $gpc, $inventoryYear, $activityYear)
    {
        if ($gpcCode == 'i_4_1') {
            $gpcQ = ActivityGpc::rowActive()->where('gpc_code', $gpcCode)
                ->where('inventory_year', $inventoryYear)->where('activity_year', $activityYear)
                ->first();

            return (float)$gpcQ->co2eq != 0.0 ? $gpcQ->co2eq :
                ActivityFormDetail::getValue($inventoryYear, $activityYear, $gpc->sector, 'penyulingan', 'emisi_minyak_mentah') ?? null;
        }

        if (in_array($gpcCode, ['i_7_1', 'i_8_1'])) {
            return ActivityFormDetail::getValue($inventoryYear, $activityYear, $gpc->sector, $gpc->sub_sector, 'emisi') ?? null;
        }

        $crf = ActivityGpc::rowActive()
            ->where('sector', $gpc->sector)->where('gpc_code', $gpcCode)
            ->where('inventory_year', $inventoryYear)->where('activity_year', $activityYear)
            ->first();

        return $crf->co2eq ?? null;
    }
}