<?php

namespace App\Http\Controllers\Imports;

use DateTime;
use Carbon\Carbon;
use App\Models\User;
use App\Models\Company;
use App\Models\Segment;
use App\Models\Transaction;
use Illuminate\Http\Request;
use App\Models\SeasonalSegment;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\DB;
use Maatwebsite\Excel\Facades\Excel;
use App\Models\TransactionMappingLog;
use App\Classes\ValueObjects\Constants\HttpStatus;
use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\Modules\Imports\Services\GenericImport;
use App\Classes\ValueObjects\Response\ApiResponseObject;
use App\Classes\Modules\Accounting\Processors\ChecksBillNumber;
use App\Classes\Modules\Segments\Services\CreatesSeasonalSegment;
use App\Classes\Modules\Companies\Processors\AssignSegmentProcessor;
use App\Classes\Modules\Documents\DataTransferObjects\DocumentObject;
use App\Classes\Modules\Segments\DataTransferObjects\SeasonalSegmentObject;

class ImportStatementInvoiceController
{
    private $responseTitle;
    private $responseMessage;

    public function __construct() {
        $this->responseTitle = 'Import Invoice Mapping';
        $this->responseMessage = 'You have successfully imported invoice mapping';
    }

    /**
     * @param Request $request
     * @return array
     * @throws \App\Classes\Exceptions\MalformedRequestException
     */
    public function import(Request $request) : JsonResponse
    {
        ini_set('memory_limit', '-1'); 
        $importDate = date('Y-m-d H:i:s');
        $object = new DocumentObject('', $request->input('files'), '', ApprovalStatus::APPROVED, 'imports');
        $file = json_decode($object->getFiles()[0])->file_info->original->file;

        $import = new GenericImport();
        Excel::import($import, $file);
        $excelRows = $import->rows;
        $excelRows = $excelRows->toArray();

        $data = [];
        foreach ($excelRows as $row) {
            $row['mapped_result_reference'] = null;
            $row['mapped_status'] = 'failed';
            $row['date'] = $this->changeExcelDate($row['date']);

            // Shipping Info
            // TOPUP -> map with transaction.bill_no
            if (str_starts_with($row['shipping_info'], 'TOPUP')) {
                // find in exchange first, if cannont then find in izyim
                foreach (['exchange','izyim'] as $system) {
                    $returnReference = $this->mappingTopUp($row, $system);
                    if ($returnReference) {
                        $row['mapped_result_reference'] = $returnReference;
                        $row['mapped_status'] = 'success';
                    }
                }
            } else {
                $returnReference = $this->mappingExchange($row);
                if ($returnReference) {
                    $row['mapped_result_reference'] = $returnReference;
                    $row['mapped_status'] = 'success';
                }
            }

            TransactionMappingLog::create([
                'imported_date'=>$importDate,
                'data'=>$row,
            ]);
            array_push($data, $row);

            
            // if 5 digits -> exchange booking reference 
            // find transation
            // find statement_transaction_owners, and fill up the details 

            // if <5 digits, find the transaction id (order number in izyim), find the payment in izyim
            // find transation
            // find statement_transaction_owners, and fill up the details 

            // dd([
            //     'type'                 => $statementTransactionOwnerType,
            //     'system'               => $system,
            //     // 'owner_type'           => Transaction::class,
            //     // todo-new: make sure owner_type is a class
            //     'owner_type'           => $owner_type,
            //     'owner_id'             => $owner_id,
            //     'owner_reference'      => $owner_reference
            // ]);
            
            // $bankStatementTransaction->owners()->firstOrCreate([
            //     'type'                 => $statementTransactionOwnerType,
            //     'system'               => $system,
            //     // 'owner_type'           => Transaction::class,
            //     // todo-new: make sure owner_type is a class
            //     'owner_type'           => $owner_type,
            //     'owner_id'             => $owner_id,
            //     'owner_reference'      => $owner_reference
            // ]);


        }

        return $this->response(['data'=>$data,'importedDate'=>$importDate]);
    }

    public function response(?array $data = []) : JsonResponse {
        return (new ApiResponseObject($this->responseTitle,
            $this->responseMessage,
            HttpStatus::OK_WITH_MESSAGE, $data))->handler();
    }

    private function mappingTopUp(Array $row, String $system) {
        try {
            if ($data = (App()->make(ChecksBillNumber::class))->execute($row['shipping_info'], $system)) {
                if ($system == 'izyim' && isset($data['owner_reference'])) return $data['owner_reference'];
                
                if ($system == 'exchange') return $this->updateTransactionOwnerReference($data, $row['doc_no']);
            }
        } catch (\Throwable $th) {
            return false;
        }
    }

    private function mappingExchange(Array $row) {
        $date = $row['date'];
        $transactions = Transaction::where('original_amount', $row['net_total'])->whereRaw("DATE(created_at) = '$date'")
        ->whereHas('receiverCompany', function($q) use($row) {
            $q->where('debtor',$row['debtor_code']);
        })
        ->get();

        if ($transactions && $transactions->count() == 1) {
            foreach ($transactions as $key => $transaction) {
                return $this->updateTransactionOwnerReference($transaction, $row['doc_no']);
            }
        }
        return false;
    }

    public function updateTransactionOwnerReference($transaction, String $docNo) {
        $transactionOwner = $transaction->transaction_owner;
        if ($transactionOwner) {
            $transactionOwner->update(['invoice_reference'=>$docNo]);
            return $transactionOwner->owner_reference;
        }
        return false;
    }

    public function changeExcelDate($date)
    {
        $unixTime = (($date - 25569) * 86400);
        $date = new DateTime("@$unixTime");
        return $date->format('Y-m-d'); // Change the format to 'Y-m-d'
    }
}