package eu.eudat.controllers;

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

import eu.eudat.models.external.ResearchersExternalSourcesModel;
import eu.eudat.models.helpers.responses.ResponseItem;
import eu.eudat.services.ApiContext;
import eu.eudat.types.ApiMessageCode;
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.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.proxy.config.exceptions.HugeResultSet;
import eu.eudat.proxy.config.exceptions.NoURLFound;


@RestController
@CrossOrigin
public class Researchers extends BaseController{

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

	@RequestMapping(method = RequestMethod.GET, value = { "/external/researchers" }, produces="application/json")
	public @ResponseBody ResponseEntity<ResponseItem<ResearchersExternalSourcesModel>> listExternalResearchers(@RequestParam(value="query", required=false) String query ){
		try {
			List<Map<String,String>> remoteRepos = this.getApiContext().getRemoteFetcher().getResearchers(query);
			ResearchersExternalSourcesModel researchersExternalSourcesModel = new ResearchersExternalSourcesModel().fromExternalItem(remoteRepos);
			return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<ResearchersExternalSourcesModel>().payload(researchersExternalSourcesModel).status(ApiMessageCode.NO_MESSAGE));
		}
		catch(NoURLFound ex) {
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<ResearchersExternalSourcesModel>().status(ApiMessageCode.ERROR_MESSAGE).message("External Url Not Found"));
		}
		catch(HugeResultSet ex) {
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<ResearchersExternalSourcesModel>().status(ApiMessageCode.ERROR_MESSAGE).message("Huge Result Set"));
		}catch (Exception ex){
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<ResearchersExternalSourcesModel>().status(ApiMessageCode.ERROR_MESSAGE).message(ex.getMessage()));
		}
	}

}