<?php

namespace App\Classes\Modules\Imports\ControllersLogic;


use App\Classes\Exceptions\MalformedRequestException;
use App\Classes\General\Abstracts\AbstractControllerLogic;
use App\Classes\Modules\Accounts\Services\CreatesKeyValuePair;
use App\Classes\Modules\Accounts\Services\UpdatesKeyValuePair;
use App\Classes\Modules\Documents\DataTransferObjects\DocumentObject;
use App\Classes\Modules\Accounts\DataTransferObjects\KeyValuePairObject;
use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\ValueObjects\Constants\KVPKey;
use App\Models\Booking;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Maatwebsite\Excel\Facades\Excel;

class ImportExcelLogic extends AbstractControllerLogic
{

    /** @var CreatesKeyValuePair */
    private $createsKeyValuePair;

    /** @var UpdatesKeyValuePair */
    private $updatesKeyValuePair;

    /**
     * ImportExcelLogic constructor.
     * @param CreatesKeyValuePair $createsKeyValuePair
     * @param UpdatesKeyValuePair $updatesKeyValuePair
     */
    public function __construct(CreatesKeyValuePair $createsKeyValuePair, UpdatesKeyValuePair $updatesKeyValuePair)
    {
        $this->createsKeyValuePair = $createsKeyValuePair;
        $this->updatesKeyValuePair = $updatesKeyValuePair;
    }

    /**
     * @return array
     */
    protected function notification():array {
        return [
            'title' => 'Import Excel',
            'message' => 'You have successfully imported and updated booking details'
        ];
    }


    /**
     * @param Request $request
     * @return JsonResponse
     * @throws MalformedRequestException
     */
    public function logic(Request $request) : JsonResponse
    {
        $reportType = $request->input('report_type');

        $object = new DocumentObject('', $request->input('files'), '', ApprovalStatus::APPROVED, 'imports');
        foreach ($object->getFiles() as $file){
            $collection = Excel::toCollection(null, json_decode($file)->file_info->original->file, null, null, true);

            $sheet = $collection->first();
            $header = $sheet->first()->toArray();

            $normalizedHeader = array_map(fn($h) => strtolower(trim($h)), $header);
            $salesInvoiceHeader = [
                'docno', 'docdate', 'debtorcode', 'ref', 'shipinfo', 'accno',
                'detaildescription', 'furtherdescription', 'classification',
                'deptno', 'qty', 'unitprice', 'submiteinvoice', 'consolidatedeinvoice'
            ];
            $customersReportHeader = [
                'tin', 'identityno', 'name', 'identitytype', 'taxclassification', 'msiccode',
                'businessactivitydesc', 'debtorcode', 'tradename', 'address', 'postcode',
                'phone', 'emailaddress', 'city', 'countrycode', 'statecode'
            ];

            if ($reportType === 'Sales Invoice Report') {
                $optionalColumn = 'einvoicevalidationlink';

                if (
                    $normalizedHeader !== $salesInvoiceHeader &&
                    $normalizedHeader !== [...$salesInvoiceHeader, $optionalColumn]
                ) {
                    throw new MalformedRequestException('Uploaded Excel file format is incorrect. Column headers do not match expected format.');
                }

            } elseif ($reportType === 'Customers Report' && $normalizedHeader !== $customersReportHeader) {
                throw new MalformedRequestException('Uploaded Excel file format is incorrect. Column headers do not match expected format.');
            }

            $rows = $sheet->skip(1);

            foreach ($rows as $index => $details) {
                $docNo = $details[0] ?? null;
                $docDate = $details[1] ?? null;
                $debtorCode = $details[2] ?? null;
                $ref = $details[3] ?? null;
                $shipInfo = $details[4] ?? null;
                $accNo = $details[5] ?? null;
                $detailDescription = $details[6] ?? null;
                $furtherDescription = $details[7] ?? null;
                $classification = $details[8] ?? null;
                $deptNo = $details[9] ?? null;
                $qty = $details[10] ?? null;
                $unitPrice = $details[11] ?? null;
                $submitEinvoice = $details[12] ?? null;
                $consolidatedEinvoice = $details[13] ?? null;
                $eInvoiceValidationLink = $details[14] ?? null; // Safe access for the new column

                Log::info("Row {$index} Details:", [
                    'DocNo' => $docNo,
                    'DocDate' => $docDate,
                    'DebtorCode' => $debtorCode,
                    'Ref' => $ref,
                    'ShipInfo' => $shipInfo,
                    'AccNo' => $accNo,
                    'DetailDescription' => $detailDescription,
                    'FurtherDescription' => $furtherDescription,
                    'Classification' => $classification,
                    'DeptNo' => $deptNo,
                    'Qty' => $qty,
                    'UnitPrice' => $unitPrice,
                    'SubmitEinvoice' => $submitEinvoice,
                    'ConsolidatedEinvoice' => $consolidatedEinvoice,
                    'EInvoiceValidationLink' => $eInvoiceValidationLink,
                ]);

                $booking = Booking::where('marking', $ref)->first();
                if($booking){
                    if($docNo != "" && $docNo != "<<New>>"){
                        $this->updateOrCreateKeyValuePair($booking, KVPKey::AUTOCOUNT_DOCNO, $docNo);
                    }
                    if($eInvoiceValidationLink){
                        $this->updateOrCreateKeyValuePair($booking, KVPKey::AUTOCOUNT_EINVOICE_VALIDATION_LINK, $eInvoiceValidationLink);
                    }
                }
            }
        }

        return $this->response([]);
    }

    private function updateOrCreateKeyValuePair($booking, $key, $value)
    {
        $keyValuePairObject = new KeyValuePairObject($key, $value);
        $metadata = $booking->attributesKVP()->where('key', $key)->first();

        if ($metadata) {
            $this->updatesKeyValuePair->execute($metadata, $keyValuePairObject);
        } else {
            $this->createsKeyValuePair->execute($booking, $keyValuePairObject);
        }
    }
}