<?php

namespace App\Classes\Modules\Transactions\Processors;

use App\Classes\Exceptions\MalformedRequestException;
use App\Classes\Modules\Bookings\Services\CalculatesBookingPayableAmount;
use App\Classes\Modules\Bookings\Services\CalculatesBookingTransferredAmount;
use App\Classes\Modules\ServiceTypes\Services\FetchesServiceConfigurations;
use App\Classes\Modules\Transactions\Services\ListsTransactions;
use App\Classes\Modules\Transactions\Services\CreatesTransaction;
use App\Classes\Modules\Transactions\Services\GeneratesTransactionBillNumber;
use App\Classes\Modules\Bookings\Services\CalculatesBookingPaidAmount;
use App\Classes\Modules\Bookings\Services\CalculatesBookingCurrencyAverageRate;
use App\Classes\Modules\Companies\Services\FetchesCompany;
use App\Classes\Modules\Bookings\Services\UpdatesBookingStatus;
use App\Classes\Modules\Transactions\DataTransferObjects\TransactionObject;
use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\ValueObjects\Constants\SegmentConstants;
use App\Classes\ValueObjects\Constants\TransactionType;
use App\Classes\ValueObjects\Constants\DocumentType;
use App\Classes\ValueObjects\Constants\KVPKey;
use App\Models\Booking;
use App\Models\SegmentConstant;
use Carbon\Carbon;
use Exception;
use Illuminate\Support\Facades\Log;

class CreateInvoiceTransactionV2Processor
{

    /** @var CreatesTransaction */
    private $createsTransaction;

    /** @var GeneratesTransactionBillNumber */
    private $generatesTransactionBillNumber;

    /** @var CalculatesBookingPaidAmount */
    private $calculatesBookingPaidAmount;

    /** @var CalculatesBookingPayableAmount */
    private $calculatesBookingPayableAmount;

    /** @var CalculatesBookingTransferredAmount */
    private $calculatesBookingTransferredAmount;

    /** @var CalculatesBookingCurrencyAverageRate */
    private $calculatesBookingCurrencyAverageRate;

    /** @var FetchesCompany */
    private $fetchesCompany;

    /** @var UpdatesBookingStatus */
    private $updatesBookingStatus;

    /** @var CreateInvoiceDocumentProcessor */
    private $invoiceDocumentProcessor;


    /**
     * CreateInvoiceTransactionV2Processor constructor.
     * @param ListsTransactions $listsTransactions
     * @param CreatesTransaction $createsTransaction
     * @param GeneratesTransactionBillNumber $generatesTransactionBillNumber
     * @param CalculatesBookingPaidAmount $calculatesBookingPaidAmount
     * @param CalculatesBookingPayableAmount $calculatesBookingPayableAmount
     * @param CalculatesBookingTransferredAmount $calculatesBookingTransferredAmount
     * @param FetchesServiceConfigurations $fetchesServiceConfigurations
     * @param CalculatesBookingCurrencyAverageRate $calculatesBookingCurrencyAverageRate
     * @param FetchesCompany $fetchesCompany
     * @param UpdatesBookingStatus $updatesBookingStatus
     * @param CreateInvoiceDocumentProcessor $invoiceDocumentProcessor
     */
    public function __construct(ListsTransactions $listsTransactions, CreatesTransaction $createsTransaction, GeneratesTransactionBillNumber $generatesTransactionBillNumber, CalculatesBookingPaidAmount $calculatesBookingPaidAmount, CalculatesBookingPayableAmount $calculatesBookingPayableAmount, CalculatesBookingTransferredAmount $calculatesBookingTransferredAmount, FetchesServiceConfigurations $fetchesServiceConfigurations, CalculatesBookingCurrencyAverageRate $calculatesBookingCurrencyAverageRate, FetchesCompany $fetchesCompany, UpdatesBookingStatus $updatesBookingStatus, CreateInvoiceDocumentProcessor $invoiceDocumentProcessor)
    {
        $this->createsTransaction = $createsTransaction;
        $this->generatesTransactionBillNumber = $generatesTransactionBillNumber;
        $this->calculatesBookingPaidAmount = $calculatesBookingPaidAmount;
        $this->calculatesBookingPayableAmount = $calculatesBookingPayableAmount;
        $this->calculatesBookingTransferredAmount = $calculatesBookingTransferredAmount;
        $this->calculatesBookingCurrencyAverageRate = $calculatesBookingCurrencyAverageRate;
        $this->fetchesCompany = $fetchesCompany;
        $this->updatesBookingStatus = $updatesBookingStatus;
        $this->invoiceDocumentProcessor = $invoiceDocumentProcessor;
    }


    /**
     * @param Booking $booking
     * @param String $invoiceNo
     * @param array $options
     * @return void
     * @throws MalformedRequestException
     */
    public function execute(Booking $booking, String $invoiceNo= "", array $options = [])
    {
        $generateEInvoice = $options['generateEInvoice'] ?? false;
        $generateEInvoiceWithNormalInvoiceTemplate = $options['generateEInvoiceWithNormalInvoiceTemplate'] ?? false;
        $generateEInvoiceRefund = $options['generateEInvoiceRefund'] ?? false;
        $bookingOriginalStatus = $options['bookingOriginalStatus'] ?? ApprovalStatus::COMPLETED;

        if($generateEInvoiceRefund){
            $generateEInvoice = true; //cief todo: 90 - cannot have 2 flags doing the same thing
        }

        if ($booking->status === ApprovalStatus::COMPLETED && !$generateEInvoiceRefund) {
            return;
        }

        $payable_amount = $this->calculatesBookingPayableAmount->execute($booking, $booking->fix_currency_id, $generateEInvoiceRefund);
        $booking_amount = $booking->fix_amount;

        // confirm that booking amount has been fully paid
        if ((float) $booking_amount > (float) $payable_amount) {
            return;
        }
        // confirm that all payments has been transferred
        if ($this->calculatesBookingTransferredAmount->execute($booking) !== $this->calculatesBookingPaidAmount->execute($booking)) {
            return;
        }

        if($generateEInvoiceRefund){
            $purchaseOrder = $booking->transactions()
                ->where('type', TransactionType::PURCHASE_ORDER)
                ->where('status', ApprovalStatus::PENDING_SUBMISSION)
                ->first();
        }
        else{
            $purchaseOrder = $booking->transactions()
                ->where('type', TransactionType::PURCHASE_ORDER)
                ->complete()
                ->first();
        }

        $constants = SegmentConstant::where('reference', SegmentConstants::SERVICE_TYPE)->where('detail->id', $booking->service->id)->first();

        if ($constants->detail->is_billable && !$purchaseOrder && !$generateEInvoiceRefund) {
            return;
        }

        // $transaction = $booking->transactions()
        //     ->where('type', TransactionType::PAYMENT)
        //     ->first();

        $transaction = $booking->transactions()
            ->where('type', TransactionType::PAYMENT)
            ->latest()->get()[0];
        $supplier = $this->fetchesCompany->execute(['id' => $transaction->receiver]);

        // Check if eInvoice implementation has started and company opted in for eInvoice
        $eInvoice = false;
        $eInvoiceStartDate = Carbon::parse(env('E_INVOICE_START_DATE', '2025-07-01 00:00:00'));
        $bookingCreatedDate = Carbon::parse($booking->created_at);
        if ($bookingCreatedDate->isAfter($eInvoiceStartDate) && $supplier->e_invoice === 1) {
            $eInvoice = true;
        }
        $kvp = $booking->attributesKVP()->where('key', KVPKey::BOOKING_EINVOICE_ELIGIBLE)->first();
        if($kvp){
            $eInvoice = true;
        }

        if($generateEInvoiceWithNormalInvoiceTemplate){
            $invoiceNo = ""; //July 2025 workaround generate normal invoice instead of E-Invoice
        }

        if($invoiceNo){
            $billNumber = $invoiceNo;
        }
        else{
            $billNUmberPrefix = $eInvoice ? 'EINV-' : 'INV-';
            if($generateEInvoiceWithNormalInvoiceTemplate){
                $billNUmberPrefix = 'INV-'; //July 2025 workaround generate normal invoice instead of E-Invoice
            }
            $billNumber = $this->generatesTransactionBillNumber->execute($billNUmberPrefix);
        }

        $booking_currency_average_rate = $this->calculatesBookingCurrencyAverageRate->execute($booking, TransactionType::PAYMENT, $generateEInvoiceRefund);

        if($generateEInvoiceRefund){
             $total_service_charge = $booking->transactions()
                ->where('type', TransactionType::PAYMENT)
                ->whereIn('status', [ApprovalStatus::REFUNDED])
                ->sum('service_charge');

            $total_tax = $booking->transactions()
                ->where('type', TransactionType::PAYMENT)
                ->whereIn('status', [ApprovalStatus::REFUNDED])
                ->sum('tax');
        }
        else{
            $total_service_charge = $booking->transactions()
                ->where('type', TransactionType::PAYMENT)
                ->whereIn('status', [ApprovalStatus::APPROVED, ApprovalStatus::COMPLETED])
                ->sum('service_charge');

            $total_tax = $booking->transactions()
                ->where('type', TransactionType::PAYMENT)
                ->whereIn('status', [ApprovalStatus::APPROVED, ApprovalStatus::COMPLETED])
                ->sum('tax');
        }


        $transaction_object = new TransactionObject(
            $billNumber,
            TransactionType::INVOICE,
            $transaction->issuer,
            $transaction->receiver,
            $transaction->recipient_bank_account_id,
            $transaction->payment_method,
            $payable_amount,
            $booking_amount,
            $transaction->currency_id,
            $transaction->original_currency_id,
            $booking_currency_average_rate,
            $total_tax,
            $total_service_charge,
            null,
            ApprovalStatus::APPROVED
        );
        $invoice_transaction = $this->createsTransaction->execute($purchaseOrder->booking ?? $booking, $transaction_object);

        $voucherRedemption = $transaction->voucherRedemption;

        // purchase order
        if(!$generateEInvoiceRefund){
            $this->invoiceDocumentProcessor->execute($invoice_transaction, $purchaseOrder, $supplier, DocumentType::PURCHASE_ORDER, $voucherRedemption, $generateEInvoiceWithNormalInvoiceTemplate);
        }

        // deliver order
        if(!$generateEInvoiceRefund){
            $this->invoiceDocumentProcessor->execute($invoice_transaction, $purchaseOrder, $supplier, DocumentType::DELIVER_ORDER, $voucherRedemption, $generateEInvoiceWithNormalInvoiceTemplate);
        }

        // e-invoice
        if ($eInvoice)
        {
            if($generateEInvoice){
                $this->invoiceDocumentProcessor->execute($invoice_transaction, $purchaseOrder, $supplier, DocumentType::EINVOICE, $voucherRedemption, $generateEInvoiceWithNormalInvoiceTemplate, $generateEInvoiceRefund);
            }
        }
        // invoice
        else
        {
            $this->invoiceDocumentProcessor->execute($invoice_transaction, $purchaseOrder, $supplier, DocumentType::INVOICE, $voucherRedemption, $generateEInvoiceWithNormalInvoiceTemplate, $generateEInvoiceRefund);
        }

        if(!$generateEInvoiceRefund){
            $billNumber = $this->generatesTransactionBillNumber->execute('SPDO-');

            $booking_currency_average_rate = $this->calculatesBookingCurrencyAverageRate->execute($booking, TransactionType::BILL, $generateEInvoiceRefund);

            $paymentTransaction = $booking->transactions()->payments()->where('status', ApprovalStatus::COMPLETED)->first();

            $transaction = null;
            if($paymentTransaction){
                $transaction = $paymentTransaction->transactions()->where('type', TransactionType::BILL)->first();
            }
            else{ // Special handling for refund cases (When a refund is deleted via DeleteRefundTransactionLogic, a booking payment transaction is set to ApprovalStatus::APPROVED)
                $temp = $booking->transactions()->payments()->where('status', ApprovalStatus::APPROVED)->first();
                // Lets check if there is a refund case
                $refund = $temp->transactions()->refunds()->where('status', ApprovalStatus::APPROVED)->first();
                if($refund){
                    $transaction = $temp;
                }
                else{
                    throw new Exception("No payment found for booking '$booking->id'.");
                }
            }

            $transaction_object = new TransactionObject(
                $billNumber,
                TransactionType::SUPPLIER_DELIVER,
                $transaction->issuer,
                $transaction->receiver,
                $transaction->recipient_bank_account_id,
                $transaction->payment_method,
                $payable_amount,
                $booking_amount,
                $transaction->currency_id,
                $transaction->original_currency_id,
                $booking_currency_average_rate,
                $total_tax,
                $total_service_charge,
                null,
                ApprovalStatus::APPROVED
            );
            $supplier_deliver_order_transaction = $this->createsTransaction->execute($purchaseOrder->booking, $transaction_object);

            // supply deliver order
            $this->invoiceDocumentProcessor->execute($supplier_deliver_order_transaction, $purchaseOrder, $supplier, DocumentType::SUPPLIER_DELIVER_ORDER, null);
        }

        //if(!$generateEInvoiceRefund){
            $this->updatesBookingStatus->execute($booking, $bookingOriginalStatus);
        //}

        // update perfex crm
        // if(config('perfexcrm.is_enabled') == 'true'){
        //     CreatePerfexCRMInvoice::dispatch($invoice_transaction, $purchaseOrder, $supplier);
        // }
    }
}