package eu.eudat.controllers;

import java.util.List;
import java.util.Map;
import java.util.UUID;

import javax.transaction.Transactional;

import eu.eudat.entities.Service;
import eu.eudat.models.external.ServiceExternalSourcesModel;
import eu.eudat.models.helpers.responses.ResponseItem;
import eu.eudat.services.ApiContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PathVariable;
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 org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import eu.eudat.dao.entities.DMPDao;
import eu.eudat.dao.entities.DMPProfileDao;
import eu.eudat.dao.entities.DataRepositoryDao;
import eu.eudat.dao.entities.DatasetDao;
import eu.eudat.dao.entities.DatasetProfileDao;
import eu.eudat.dao.entities.DatasetProfileRulesetDao;
import eu.eudat.dao.entities.DatasetProfileViewstyleDao;
import eu.eudat.dao.entities.OrganisationDao;
import eu.eudat.dao.entities.ProjectDao;
import eu.eudat.dao.entities.RegistryDao;
import eu.eudat.dao.entities.ResearcherDao;
import eu.eudat.dao.entities.ServiceDao;
import eu.eudat.proxy.config.exceptions.HugeResultSet;
import eu.eudat.proxy.config.exceptions.NoURLFound;
import eu.eudat.proxy.fetching.RemoteFetcher;


@RestController
@CrossOrigin
public class Services extends BaseController{

	@Autowired
	public Services(ApiContext apiContext) {
		super(apiContext);
	}

	@RequestMapping(method = RequestMethod.GET, value = { "/external/services" }, produces="application/json")
	public @ResponseBody ResponseItem<ServiceExternalSourcesModel> listExternalServices(@RequestParam(value="query", required=false) String query ){
		try {
			List<Map<String,String>> remoteRepos = this.getApiContext().getRemoteFetcher().getServices(query);
			ServiceExternalSourcesModel serviceExternalSourcesModel = new ServiceExternalSourcesModel().fromExternalItem(remoteRepos);
			return new ResponseItem<ServiceExternalSourcesModel>().payload(serviceExternalSourcesModel).status(HttpStatus.OK);
		}
		catch(NoURLFound ex) {
			return new ResponseItem<ServiceExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("External Url Not Found");
		}
		catch(HugeResultSet ex) {
			return new ResponseItem<ServiceExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("Huge Result Set");
		}catch (Exception ex){
			return new ResponseItem<ServiceExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}
	
	/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////






	// MANAGE SERVICE(S)

	@RequestMapping(method = RequestMethod.GET, value = { "/services" })
	public @ResponseBody ResponseEntity<List<UUID>> listServices(){
		try {
			List<UUID> allIDs = this.getApiContext().getDatabaseRepository().getServiceDao().listAllIDs();
			return ResponseEntity.status(HttpStatus.OK).body(allIDs);
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
		}
	}
	
	
	@RequestMapping(method = RequestMethod.GET, value = { "/services/{id}" })
	public @ResponseBody ResponseEntity<Service> getServices(@PathVariable("id") String id) {
		try {
			Service service = this.getApiContext().getDatabaseRepository().getServiceDao().read(UUID.fromString(id));
			return ResponseEntity.status(HttpStatus.OK).body(service);
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(null);
		}
	}
	
	
	
	@RequestMapping(method = RequestMethod.GET, value = { "/service/getAll" }, produces="application/json")
	public @ResponseBody ResponseEntity<Object> getAllServices(){
		try {
			List<Service> allServices = this.getApiContext().getDatabaseRepository().getServiceDao().getAll();
			
			return ResponseEntity.status(HttpStatus.OK).body(allServices);
			
		}
		catch(Exception ex) {
			return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
		}
	}
	
	
	@Transactional
	@RequestMapping(method = RequestMethod.POST, value = { "/service/create" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseEntity<Service> setService(@RequestBody Service service) {
		
		Service createdService = this.getApiContext().getDatabaseRepository().getServiceDao().update(service);
		try {
			return ResponseEntity.status(HttpStatus.CREATED).body(createdService);
		} catch (Exception e) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
		}	
	}
	
	
	@RequestMapping(method = RequestMethod.POST, value = { "/service/delete" }, consumes = "application/json", produces="text/plain")
	public @ResponseBody ResponseEntity<Object> delete(@RequestBody Service service) {
		
		System.out.println(service);
		
		try {
			this.getApiContext().getDatabaseRepository().getServiceDao().delete(service);
			return ResponseEntity.status(HttpStatus.CREATED).body("{\"msg\":\"Deleted Service entity!\"}");
		} catch (Exception e) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("{\"msg\":\"Could not Delete Service entity!\"}");
		}
		
	}
}