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package com.spice.profitmandi.web.controller;

import com.spice.profitmandi.common.exception.ProfitMandiBusinessException;
import com.spice.profitmandi.common.model.ItemDescriptionModel;
import com.spice.profitmandi.common.model.ProfitMandiConstants;
import com.spice.profitmandi.dao.entity.auth.AuthUser;
import com.spice.profitmandi.dao.entity.catalog.Item;
import com.spice.profitmandi.dao.entity.inventory.Vendor;
import com.spice.profitmandi.dao.entity.inventory.VendorCatalogPricing;
import com.spice.profitmandi.dao.entity.inventory.VendorCatalogPricingLog;
import com.spice.profitmandi.dao.entity.warehouse.Supplier;
import com.spice.profitmandi.dao.enumuration.inventory.VendorCatalogPricingStatus;
import com.spice.profitmandi.dao.model.VendorCatalogPricingModel;
import com.spice.profitmandi.dao.model.VendorPriceCircularModel;
import com.spice.profitmandi.dao.repository.auth.AuthRepository;
import com.spice.profitmandi.dao.repository.catalog.ItemRepository;
import com.spice.profitmandi.dao.repository.inventory.VendorCatalogPricingLogRepository;
import com.spice.profitmandi.dao.repository.inventory.VendorCatalogPricingRepository;
import com.spice.profitmandi.dao.repository.inventory.VendorRepository;
import com.spice.profitmandi.dao.repository.warehouse.SupplierRepository;
import com.spice.profitmandi.service.inventory.VendorCatalogPricingService;
import com.spice.profitmandi.service.warehouse.WarehouseService;
import com.spice.profitmandi.web.model.LoginDetails;
import com.spice.profitmandi.web.util.CookiesProcessor;
import com.spice.profitmandi.web.util.MVCResponseSender;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.*;
import java.util.stream.Collectors;

@Controller
@Transactional(rollbackFor = Throwable.class)
public class VendorController {


    @Autowired
    VendorRepository vendorRepository;

    @Autowired
    private CookiesProcessor cookiesProcessor;

    @Autowired
    private AuthRepository authRepository;

    @Autowired
    private VendorCatalogPricingService vendorCatalogPricingService;

    @Autowired
    private VendorCatalogPricingLogRepository vendorCatalogPricingLogRepository;

    @Autowired
    private VendorCatalogPricingRepository vendorCatalogPricingRepository;


    @Autowired
    private MVCResponseSender mvcResponseSender;

    @Autowired
    private ItemRepository itemRepository;

    @Autowired
    private SupplierRepository supplierRepository;

    @Autowired
    private WarehouseService warehouseService;

    private static final Logger LOGGER = LogManager.getLogger(VendorController.class);


    @RequestMapping(value = "/vendorCatalogPricing", method = RequestMethod.GET)
    public String vendorCatalogPricing(HttpServletRequest request, Model model) throws Exception {

        return "vendor-catalog-pricing";
    }


    @RequestMapping(value = "/getVendorCatalogPricingByModel", method = RequestMethod.GET)
    public String getVendorCatalogPricingByModel(HttpServletRequest request, @RequestParam int catalogId, Model model) throws Exception {

        List<Integer> vendorIds = new ArrayList<>();
        Map<Integer, VendorCatalogPricing> vendorCatalogPricingMap = new HashMap<>();
        Map<Integer, VendorCatalogPricingLog> vendorCatalogPricingLogMap = new HashMap<>();
        List<VendorCatalogPricing> vendorCatalogPricing = vendorCatalogPricingRepository.selectByCatalogId(catalogId);
        if (!vendorCatalogPricing.isEmpty()) {
            vendorIds.addAll(vendorCatalogPricing.stream().distinct().map(x -> x.getVendorId()).collect(Collectors.toList()));
            vendorCatalogPricingMap = vendorCatalogPricing.stream().collect(Collectors.toMap(x -> x.getVendorId(), x -> x));
        }

        List<VendorCatalogPricingLog> vendorCatalogPricingLog = vendorCatalogPricingLogRepository.selectByCatalogId(catalogId, VendorCatalogPricingStatus.PENDING);
        if (!vendorCatalogPricingLog.isEmpty()) {
            vendorIds.addAll(vendorCatalogPricingLog.stream().distinct().map(x -> x.getVendorId()).collect(Collectors.toList()));
            vendorCatalogPricingLogMap = vendorCatalogPricingLog.stream().filter(x -> x.getStatus().equals(VendorCatalogPricingStatus.PENDING)).collect(Collectors.toMap(x -> x.getVendorId(), x -> x));
        }
        LOGGER.info("VendorIds {}", vendorIds);
        List<Supplier> suppliers = new ArrayList<Supplier>();
        if (!vendorIds.isEmpty()) {
            suppliers.addAll(supplierRepository.selectBySupplierIds(vendorIds));
        }
        LOGGER.info("suppliers {}", suppliers);

        model.addAttribute("suppliers", suppliers);
        model.addAttribute("vendorCatalogPricingMap", vendorCatalogPricingMap);
        model.addAttribute("vendorCatalogPricingLogMap", vendorCatalogPricingLogMap);

        model.addAttribute("catalogId", catalogId);


        return "vendor-catalog-pricing-view";
    }


    @RequestMapping(value = "/vendors", method = RequestMethod.GET)
    public String getVendor(HttpServletRequest request, Model model, @RequestParam String query) throws Throwable {
        List<Supplier> vendors = supplierRepository.selectAll().stream().filter(x -> x.getName().toLowerCase().matches(".*?" + query.toLowerCase() + ".*?"))
                .filter(x -> x.isStatus()).collect(Collectors.toList());
        model.addAttribute("response1", mvcResponseSender.createResponseString(vendors));
        return "response";
    }


    @RequestMapping(value = "/createVendorCatalogPricing", method = RequestMethod.POST)
    public String createVendorCatalogPricing(HttpServletRequest request, @RequestBody VendorCatalogPricingModel vendorCatalogPricingModel, Model model) throws Exception {

        LoginDetails loginDetails = cookiesProcessor.getCookiesObject(request);
        AuthUser authUser = authRepository.selectByEmailOrMobile(loginDetails.getEmailId());
        vendorCatalogPricingModel.setAuthId(authUser.getId());

        LOGGER.info("vendorCatalogPricingModel {}", vendorCatalogPricingModel);

        vendorCatalogPricingService.createVendorCatalogPricingLog(vendorCatalogPricingModel);
        model.addAttribute("response1", mvcResponseSender.createResponseString(true));
        return "response";

    }


    @RequestMapping(value = "/vendorCatalogPricingRequests", method = RequestMethod.GET)
    public String vendorCatalogPricingRequests(HttpServletRequest request, Model model) throws Exception {
        List<VendorCatalogPricingLog> vendorCatalogPricingRequests = vendorCatalogPricingLogRepository.selectByStatus(VendorCatalogPricingStatus.PENDING);
        Map<Integer, AuthUser> authUserMap = authRepository.selectAllActiveUser().stream().collect(Collectors.toMap(x -> x.getId(), x -> x));
        model.addAttribute("vendorCatalogPricingRequests", vendorCatalogPricingRequests);
        if (!vendorCatalogPricingRequests.isEmpty()) {
            Set<Integer> catalogIds = vendorCatalogPricingRequests.stream().map(x -> x.getCatalogId()).collect(Collectors.toSet());
            List<Integer> vendorIds = vendorCatalogPricingRequests.stream().map(x -> x.getVendorId()).collect(Collectors.toList());


            Map<Integer, List<Item>> itemMap = itemRepository.selectAllByCatalogIds(catalogIds).stream().collect(Collectors.groupingBy(x -> x.getCatalogItemId()));
            model.addAttribute("itemMap", itemMap);
        }
        Map<Integer, Vendor> vendorMap = vendorRepository.selectAll().stream().collect(Collectors.toMap(x -> x.getId(), x -> x));
        model.addAttribute("authMap", authUserMap);
        model.addAttribute("vendorMap", vendorMap);
        model.addAttribute("vendorPricingStatus", VendorCatalogPricingStatus.values());

        return "vendor-catalog-pricing-request";
    }

    @RequestMapping(value = "/verifyVendorCatalogPricingRequest", method = RequestMethod.POST)
    public String verifyVendorCatalogPricingRequest(HttpServletRequest request, @RequestParam int id, @RequestParam VendorCatalogPricingStatus status, Model model) throws Exception {
        LoginDetails loginDetails = cookiesProcessor.getCookiesObject(request);
        AuthUser authUser = authRepository.selectByEmailOrMobile(loginDetails.getEmailId());

        VendorCatalogPricingLog vendorCatalogPricingLog = vendorCatalogPricingLogRepository.selectById(id);

        if (status.equals(VendorCatalogPricingStatus.APPROVED)) {
            List<VendorCatalogPricingLog> vendorCatalogPricingLogsOnEffectedDate = vendorCatalogPricingLogRepository.selectByEffectedDateAndCatalogId(vendorCatalogPricingLog.getVendorId(), vendorCatalogPricingLog.getCatalogId(), vendorCatalogPricingLog.getEffectedOn());
            Optional<VendorCatalogPricingLog> optionalVendorCatalogPricingLog = vendorCatalogPricingLogsOnEffectedDate.stream().filter(x -> x.getStatus().equals(VendorCatalogPricingStatus.APPROVED)).findAny();
            if (optionalVendorCatalogPricingLog.isPresent()) {
                VendorCatalogPricingLog approvedPricingLog = optionalVendorCatalogPricingLog.get();
                approvedPricingLog.setStatus(VendorCatalogPricingStatus.REJECTED);
                approvedPricingLog.setUpdatedTimestamp(LocalDateTime.now());
            }

        }
        vendorCatalogPricingLog.setStatus(status);
        vendorCatalogPricingLog.setUpdatedTimestamp(LocalDateTime.now());
        if (vendorCatalogPricingLog.getStatus().equals(VendorCatalogPricingStatus.APPROVED)) {
            vendorCatalogPricingLog.setApprovedBy(authUser.getId());
            vendorCatalogPricingLog.setApprovedTimestamp(LocalDateTime.now());
            vendorCatalogPricingService.createVendorCatalogPricing(vendorCatalogPricingLog);
        }

        model.addAttribute("response1", mvcResponseSender.createResponseString(true));
        return "response";
    }


    @RequestMapping(value = "/vendorPriceCircular", method = RequestMethod.GET)
    public String vendorPriceCircular(HttpServletRequest request, Model model) throws Exception {


        return "vendor-price-circular";

    }


    @RequestMapping(value = "/getVendorPriceCircular", method = RequestMethod.GET)
    public String getVendorPriceCircular(HttpServletRequest request, @RequestParam int vendorId, @RequestParam LocalDate effectedDate, Model model) throws Exception {

        List<VendorPriceCircularModel> vendorCatalogPricings = vendorCatalogPricingLogRepository.getVendorPricesOnDate(vendorId, effectedDate);

        if (!vendorCatalogPricings.isEmpty()) {
            Set<Integer> catalogIds = vendorCatalogPricings.stream().map(x -> x.getCatalogId()).collect(Collectors.toSet());
            Map<Integer, List<Item>> itemMap = itemRepository.selectAllByCatalogIds(catalogIds).stream().collect(Collectors.groupingBy(x -> x.getCatalogItemId()));
            model.addAttribute("itemMap", itemMap);
        }

        model.addAttribute("vendorCatalogPricings", vendorCatalogPricings);
        return "vendor-price-circular-view";

    }

    @RequestMapping(value = "/getPricing", method = RequestMethod.GET)
    public String getPricing(HttpServletRequest request, @RequestParam int vendorId, @RequestParam int itemId, @RequestParam LocalDate onDate, Model model) throws Exception {
        Item item = itemRepository.selectById(itemId);
        VendorPriceCircularModel vendorPriceCircularModel = vendorCatalogPricingLogRepository.getVendorPriceOnDate(vendorId, item.getCatalogItemId(), onDate);

        LOGGER.info("vendorCatalogPricing {}", vendorPriceCircularModel);

        model.addAttribute("response1", mvcResponseSender.createResponseString(vendorPriceCircularModel));

        return "response";

    }

    private void addVendorPricingIfMissing(int itemId, int vendorId) throws ProfitMandiBusinessException {
        Supplier supplier = supplierRepository.selectById(vendorId);
        Item item = itemRepository.selectById(itemId);
        int vendorWithPricing = 0;
        if (supplier.isInternal() && (item.getBrand().equals("Samsung") || item.getCategoryId() != 10006)) {
            VendorPriceCircularModel vendorPriceCircularModel = vendorCatalogPricingLogRepository.getVendorPriceOnDate(vendorId, item.getCatalogItemId(), LocalDate.now());
            LOGGER.info("VendorPriceCircularModel - {}", vendorPriceCircularModel);
            if (vendorPriceCircularModel == null) {
                if (item.getBrand().equals("Samsung")) {
                    //BSB
                    vendorWithPricing = 334;
                } else if (item.getCategoryId() != 10006) {
                    vendorWithPricing = vendorCatalogPricingLogRepository.selectByCatalogId(item.getCatalogItemId(), VendorCatalogPricingStatus.APPROVED).stream().map(x -> x.getVendorId())
                            .findFirst().orElse(null);
                }
                VendorPriceCircularModel existingPriceCircular = vendorCatalogPricingLogRepository.getVendorPriceOnDate(vendorWithPricing, item.getCatalogItemId(), LocalDate.now());
                LOGGER.info("Existing price circular - {}", existingPriceCircular);
                if (existingPriceCircular == null) {
                    throw new ProfitMandiBusinessException("Pricing missing for vendor - " + vendorId, "Pricing missing for vendor - " + vendorId, "Pricing missing for vendor - " + vendorId);
                }
                VendorCatalogPricingModel vendorCatalogPricingModel = new VendorCatalogPricingModel();
                vendorCatalogPricingModel.setAuthId(52);
                vendorCatalogPricingModel.setVendorId(vendorId);
                vendorCatalogPricingModel.setCatalogId(existingPriceCircular.getCatalogId());
                vendorCatalogPricingModel.setDp(existingPriceCircular.getDealerPrice());
                vendorCatalogPricingModel.setEffectedOn(existingPriceCircular.getEffectedOn());
                vendorCatalogPricingModel.setMop(existingPriceCircular.getMop());
                vendorCatalogPricingModel.setTp(existingPriceCircular.getTransferPrice());
                vendorCatalogPricingModel.setCatalogId(item.getCatalogItemId());

                VendorCatalogPricingLog vendorCatalogPricingLog = vendorCatalogPricingService.createVendorCatalogPricingLog(vendorCatalogPricingModel);
                vendorCatalogPricingLog.setStatus(VendorCatalogPricingStatus.APPROVED);
                vendorCatalogPricingLog.setUpdatedTimestamp(LocalDateTime.now());
                //Deenanath Auth Id
                vendorCatalogPricingLog.setApprovedBy(138);
                vendorCatalogPricingLog.setApprovedTimestamp(LocalDateTime.now());
                vendorCatalogPricingService.createVendorCatalogPricing(vendorCatalogPricingLog);

            }
        }
    }

    @RequestMapping(value = "/vendorItem", method = RequestMethod.GET)
    public String getItemPricing(HttpServletRequest request, Model model, @RequestParam int vendorId,
                                 @RequestParam String query) throws Exception {
        String query1 = query.toLowerCase();
        int itemId = 0;
        try {
            itemId = Integer.parseInt(query1);
            addVendorPricingIfMissing(itemId, vendorId);
        } catch (NumberFormatException e) {
            LOGGER.info("Ignore number format exception");
            // e.printStackTrace();
        }
        LOGGER.info("Vendor Id - {}", vendorId);
        List<ItemDescriptionModel> partnersItemDescription = warehouseService.getAllPartnerItemStringDescription(vendorId).parallelStream().filter(x -> x.getItemDescription().toLowerCase().matches(".*?" + query1 + ".*?")).collect(Collectors.toList());
        LOGGER.info("partnersItemDescription" + partnersItemDescription);

        model.addAttribute("response1", mvcResponseSender.createResponseString(partnersItemDescription));
        return "response";
    }
}