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package com.orgname.cruddata.services;

import com.orgname.cruddata.data.EntityV1;
import com.orgname.cruddata.repositories.IEntitiesRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Service;

import java.util.Map;
import java.util.Optional;

@Service
public class EntitiesService {
    private final IEntitiesRepository repository;
    Logger logger = LoggerFactory.getLogger(EntitiesService.class);

    @Autowired
    public EntitiesService(IEntitiesRepository repository) {
     this.repository = repository;
    }

    public Page getEntities(String traceId, Map filter, Map paging) {
        var numPage = paging != null && paging.get("page") != null ? Integer.parseInt(paging.get("page")) : 0;
        var pageSize = paging != null && paging.get("size") != null ? Integer.parseInt(paging.get("size")) : 100;

        var res = repository.findByFilter(filter, PageRequest.of(numPage, pageSize));

        logger.info(traceId + " : " + "Found " + res.stream().count() + "entities");

        return res;
    }


    public Optional getEntityById(String traceId, String entityId) {
        var res = repository.findEntityById(entityId);
        res.ifPresentOrElse(
                entityV1 -> logger.info(traceId + " : " + "Entity with id: " + entityId),
                () -> logger.info(traceId + " : " + "Nothing found with id: " + entityId)
        );
        return res;
    }


    public EntityV1 createEntity(String traceId, EntityV1 entity) {
        var res = repository.create(entity);
        logger.info(traceId + " : " + "Created entity with id: " + entity.getId());
        return res;
    }


    public Optional updateEntity(String traceId, EntityV1 entity) {
        var res = repository.update(entity);
        if (res.isPresent()) {
            logger.info(traceId + " : " + "Updated entity with id: " + entity.getId());
            return res;
        } else {
            logger.info(traceId + " : " + "Entity not found, id: " + entity.getId());
            return Optional.empty();
        }
    }


    public Optional deleteEntityById(String traceId, String entityId) {
        return repository.deleteEntityById(entityId);

//        if (entity.isPresent()) {
//            repository.deleteById(entityId);
//            logger.info(traceId + " : " + "Deleted entity with id: " + entityId);
//        } else {
//            logger.info(traceId + " : " + "Entity not found for deletion, id: " + entityId);
//        }
//
//        return entity;
    }
}