<?php

namespace App\Services\Emisi;

use App\Models\ActivityCrf;
use App\Models\Agriculture3A;
use App\Models\ReferenceEf;
use App\Services\SigdCrudService;

class Agriculture3AService extends SigdCrudService
{
    private $sectorCode = 'agriculture';
    private $formCode = 'ternak';

    public function __construct(Agriculture3A $model)
    {
        $this->model = $model;
    }

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

            if ($ws && class_basename($ws->model) == 'Agriculture3A') {
                foreach ($years as $year) {
                    $dataBatch = array_merge($dataBatch, $this->calcAndSave($inventoryYear, $year, $ws));
                }
            } else {
                throw new \Exception("Forbidden");
            }

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

    private function getEfData($activityCode)
    {
        $order = ['weaning', 'yearling', 'young', 'mature', 'imported'];

        // Prepare a CASE statement for custom sorting
        $orderStat = 'CASE ';
        foreach ($order as $index => $value) {
            $orderStat .= "WHEN tag_1 = '$value' THEN " . ($index + 1) . " ";
        }
        // If there are other values, place them at the end
        $orderStat .= "ELSE " . (count($order) + 1) . " END AS order_tag1";

        $data = ReferenceEf::selectRaw("DISTINCT tag_1, $orderStat")
            ->where('activity_code', $activityCode)
            ->where(function ($query) {
                $query->where(function ($subQuery) {
                    $subQuery->whereNotNull('tag_1')
                        ->whereNull('tag_2')
                        ->whereNull('tag_3');
                })->orWhere(function ($subQuery) {
                    $subQuery->whereNull('tag_1')
                        ->whereNull('tag_2')
                        ->whereNull('tag_3');
                });
            })
            ->isActive()->rowActive()->orderBy('order_tag1')
            ->pluck('tag_1');

        return $data;
    }

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

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

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

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

            $no = 1;
            foreach ($activities as $activity => $value) {
                $efs = $this->getEfData($activity);

                foreach ($efs as $ef) {
                    $ef_proportion = ReferenceEf::getValue($activity, 'proportion', $ef);
                    $num_animal = $value == 0 ? 0 : round($value * $ef_proportion / 100, 0);
                    $ef_ef = ReferenceEf::getValue($activity, $ws->code . '_ef', $ef);
                    $ch4 = $value == 0 ? 0 : $num_animal * $ef_ef / 1000000;

                    $dataForm = [
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'category' => $wsCode,
                        'tag_1' => $ef ?? null,
                        'value' => $value,
                        'ef_proportion' => $ef_proportion,
                        'num_animal' => $num_animal,
                        'ef' => $ef_ef,
                        'ch4' => $ch4,
                        'row_num' => $no++,
                    ];

                    $this->createOrUpdate([
                        'inventory_year' => $inventoryYear,
                        'activity_year' => $activityYear,
                        'activity_code' => $activity,
                        'category' => $wsCode,
                        'tag_1' => $ef ?? null,
                        '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 = null;
            $ch4 = array_sum(array_column($dataForms, 'ch4'));
            $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;
        }
    }
}