package com.mfsys.uco.controller;

import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Paragraph;
import com.mfsys.uco.UCOURI;
import com.mfsys.uco.dto.*;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.*;

import java.io.ByteArrayOutputStream;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;

@RestController
@RequiredArgsConstructor
public class UserController {
    @PostMapping(UCOURI.VIEW_BALANCE)
    public ViewBalanceResponseModel viewBalance(@RequestBody ViewBalanceRequestModel viewBalanceRequestModel) {
        ViewBalanceResponseModel viewBalanceResponseModel = new ViewBalanceResponseModel();
        viewBalanceResponseModel.setMbmBkmsbalance("100.00");
        return viewBalanceResponseModel;
    }

    @GetMapping(UCOURI.FETCH_DEPOSITACCOUNTS)
    public List<DepositAccount> getDepositAccounts(
            @RequestParam String porOrgacode,
            @RequestParam String custcode,
            @RequestParam String pctcstycode) {

        List<DepositAccount> accounts = new ArrayList<>();
        DepositAccount account = new DepositAccount();
        account.setPorOrgacode(porOrgacode);
        account.setMbmBkmsnumber("123456789");
        account.setPcrCurrdesc("US Dollars");
        account.setPcrCurrCode("USD");
        account.setPctCstycode(pctcstycode);
        account.setMbmBkmstitle("Savings Account");
        account.setMbmBkmsbalance(new BigDecimal("1000.00"));
        account.setMbmBkmsopendate("2021-01-01");
        account.setAccountType("SAVINGS");
        accounts.add(account);
        return accounts;
    }

    @GetMapping(UCOURI.FETCH_ACCOUNT_STATEMENT)
    public List<DepositAccountTransaction> getAccountStatement(
            @RequestParam String porOrgacode,
            @RequestParam String mbmBkmsnumber,
            @RequestParam String sgtGntrvaluedatefrom,
            @RequestParam String sgtGntrvaluedateto
    ) {

        List<DepositAccountTransaction> transactions = new ArrayList<>();
        DepositAccountTransaction transaction = new DepositAccountTransaction();
        transaction.setTranID("12345");
        transaction.setSgtGntrCreatedAt("2024-03-17");
        transaction.setSgtGntrNarration("Sample Transaction");
        transaction.setSgtGntrvaluedate("2024-03-17");
        transaction.setDeposit("100.00");
        transaction.setWithdrawal("0.00");
        transaction.setStatus("approved");
        transaction.setSgtGntramt("1000.00");
        transactions.add(transaction);
        return transactions;
    }

    @GetMapping(UCOURI.FETCH_ACCOUNT_INQUIRY)
    public AccountInquiryResponse getAccountInquiry(
            @RequestParam String acntTypeCode,
            @RequestParam String acntTypeValue) {

        return new AccountInquiryResponse("Nabeel Dce");
    }

    @PostMapping(UCOURI.GET_TRANSACTION_PIN)
    public TransactionPinResponseModel submitTransaction(@RequestBody TransactionPinRequestModel transactionPinRequestModel) {
        TransactionPinResponseModel response = new TransactionPinResponseModel();
        response.setOtdTranrequestid(123456);
        response.setPinCode("1234");
        return response;
    }

    @PostMapping(UCOURI.SUBMIT_TRANSACTION)
    public TransactionResponseModel submitTransaction(@RequestBody TransactionRequestModel transactionRequestModel) {
        String mockTranID = "TRAN1234567890";
        return new TransactionResponseModel(mockTranID);
    }

    @PostMapping(UCOURI.GENERATE_TRANSACTIONS_REPORT)
    public String generateReport(@RequestBody TransactionHistoryRequest request) {
        try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
            PdfWriter writer = new PdfWriter(baos);
            PdfDocument pdf = new PdfDocument(writer);
            Document document = new Document(pdf);

            document.add(new Paragraph("Account Transaction History Report"));
            document.add(new Paragraph("Organization Code: " + request.getPorOrgacode()));
            document.add(new Paragraph("Account Number: " + request.getMbmBkmsnumber()));
            document.add(new Paragraph("From: " + request.getSgtGntrvaluedatefrom() + " To: " + request.getSgtGntrvaluedateto()));
            document.close();
            return Base64.getEncoder().encodeToString(baos.toByteArray());
        } catch (Exception e) {
            return "Error generating report";
        }
    }
}