<?php

namespace App\Services\Emisi;

use App\Enums\LandCategory;
use App\Models\ActivityCrf;
use App\Models\Folu3B;
use App\Models\ReferenceEf;
use App\Services\SigdCrudService;

class Folu3BService extends SigdCrudService
{
    private $sectorCode = 'folu';
    private $formCode = 'lahan_mineral';

    public function __construct(Folu3B $model)
    {
        $this->model = $model;
    }

    public function getDataLandCategories(string $fromKey, string $toKey): array
    {
        $fromCategory = LandCategory::tryFrom($fromKey);
        $toCategory = LandCategory::tryFrom($toKey);

        if ($toCategory === null) {
            throw new \InvalidArgumentException("Invalid Key: {$toKey}");
        }

        $dataTo = LandCategory::getSubcategories($toCategory);
        if ($fromCategory !== null) {
            $dataFrom = LandCategory::getSubcategories($fromCategory);
        } else {
            $allSubcategories = [];
            foreach (LandCategory::cases() as $category) {
                if ($category !== $toCategory) {
                    $allSubcategories = array_merge($allSubcategories, LandCategory::getSubcategories($category));
                }
            }
            $dataFrom = array_diff($allSubcategories, $dataTo);
        }


        return ['dataFrom' => array_values($dataFrom), 'dataTo' => array_values($dataTo)];
        // return $this->getLandActivityCodes($dataFrom, $dataTo);
    }

    public function getLandActivityCodes($lands1, $lands2)
    {
        $activityCodes = [];
        foreach ($lands1 as $land1) {
            foreach ($lands2 as $land2) {
                $activityCodes[] = $land1 . '_' . $land2;
            }
        }

        return $activityCodes;
    }

    public function save($code, $inventoryYear)
    {
        try {
            $dataBatch = [];
            $ws = $this->getWs($code);
            $years = activityYearRange($inventoryYear);
            // $activityYear = $inventoryYear - 1;

            list($fromKey, $toKey) = explode('_', $code);
            $lands = $this->getDataLandCategories($fromKey, $toKey);

            if ($ws && class_basename($ws->model) == 'Folu3B') {
                foreach ($years as $year) {
                    $dataBatch = array_merge($dataBatch, $this->calcAndSave($inventoryYear, $year, $ws, $lands));
                }
            } else {
                throw new \Exception("Forbidden");
            }

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

    public function calcAndSave($inventoryYear, $activityYear, $ws, $lands)
    {
        // Initialize variables
        $dataForms = [];
        $activities = [];

        $sector = $this->sectorCode;
        $code = $this->formCode;
        $wsCode = $ws->ws_code;

        $lands1 = $lands['dataFrom'];
        $lands2 = $lands['dataTo'];

        try {
            //  Initialize and get data activities
            $formActivity = $this->getActivityFormDetailsByYear($activityYear + 1, $activityYear, $sector, $code);
            foreach ($formActivity as $row) $activities[$row->activity_code] = $row->activity_value ?? 0;

            $no = 1;
            foreach ($lands2 as $land2) {
                foreach ($lands1 as $land1) {
                    $activity = $land1 . '_' . $land2;

                    $area = $activities[$land1 . '_' . $land2] ?? 0;
                    $ef_agb_before = ReferenceEf::getValue($land1 . '_' . $land1, 'agb');
                    $c_before = $area * ($ef_agb_before + 0.37);
                    $ef_agb_after = ReferenceEf::getValue($land2 . '_' . $land2, 'agb');
                    $c_after = $area * ($ef_agb_after + 0.37);
                    $c_change = $c_after - $c_before;

                    $dataForm = [
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'category' => $wsCode,
                        'before' => $land1,
                        'after' => $land2,
                        'area' => $area,
                        'ef_agb_before' => $ef_agb_before,
                        'c_before' => $c_before,
                        'ef_agb_after' => $ef_agb_after,
                        'c_after' => $c_after,
                        'c_change' => $c_change,
                        'row_num' => $no++,
                    ];

                    $this->createOrUpdate([
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'category' => $wsCode,
                        'before' => $land1,
                        'after' => $land2,
                        'row_status' => 1,
                    ], $dataForm);

                    $dataForms[] = $dataForm;
                }
            }

            $this->saveCrfEmission($inventoryYear, $activityYear, $ws, $dataForms);

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

    private function saveCrfEmission($inventoryYear, $activityYear, $ws, $dataForms)
    {
        try {
            $co2 = array_sum(array_column($dataForms, 'c_change'));
            $co2 = -1 * $co2 * 44 / 12 / 1000;
            $ch4 = null;
            $n2o = null;

            $dataForm = [
                'inventory_year' => $inventoryYear,
                'activity_year' => $activityYear,
                'sector' => $this->sectorCode,
                'ws_code' => $ws->ws_code,
                'co2' => $co2,
                'ch4' => $ch4,
                'n2o' => $n2o,
            ];

            $this->createOrUpdate([
                'inventory_year' => $inventoryYear,
                'activity_year' => $activityYear,
                'sector' => $this->sectorCode,
                'ws_code' => $ws->ws_code,
                'row_status' => 1,
            ], $dataForm, ActivityCrf::class);
        } catch (\Exception $e) {
            throw $e;
        }
    }
}