package eu.eudat.controllers;

import eu.eudat.entities.Dataset;
import eu.eudat.managers.DatasetManager;
import eu.eudat.managers.DatasetWizardManager;
import eu.eudat.models.datasetwizard.DataManagentPlanListingModel;
import eu.eudat.models.datasetwizard.DatasetProfileWizardAutocompleteRequest;
import eu.eudat.models.datasetwizard.DatasetWizardAutocompleteRequest;
import eu.eudat.models.datasetwizard.DatasetWizardModel;
import eu.eudat.models.dmp.AssociatedProfile;
import eu.eudat.models.helpers.responses.ResponseItem;
import eu.eudat.models.security.Principal;
import eu.eudat.services.ApiContext;
import eu.eudat.types.ApiMessageCode;
import org.apache.poi.util.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import javax.activation.MimetypesFileTypeMap;
import javax.transaction.Transactional;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;


@RestController
@CrossOrigin
@RequestMapping(value = {"api/datasetwizard"})
public class DatasetWizardController extends BaseController {

    private Environment environment;

    @Autowired
    public DatasetWizardController(ApiContext apiContext, Environment environment) {
        super(apiContext);
        this.environment = environment;
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/userDmps"}, produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<List<DataManagentPlanListingModel>>> getUserDmps(@RequestBody DatasetWizardAutocompleteRequest datasetWizardAutocompleteRequest, Principal principal) {
        try {
            List<DataManagentPlanListingModel> dataManagementPlans = DatasetWizardManager.getUserDmps(this.getApiContext().getOperationsContext().getDatabaseRepository().getDmpDao(), datasetWizardAutocompleteRequest, principal);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<List<DataManagentPlanListingModel>>().status(ApiMessageCode.NO_MESSAGE).payload(dataManagementPlans));

        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<List<DataManagentPlanListingModel>>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/getAvailableProfiles"}, produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<List<AssociatedProfile>>> getAvailableProfiles(@RequestBody DatasetProfileWizardAutocompleteRequest datasetProfileWizardAutocompleteRequest, Principal principal) {
        try {
            List<AssociatedProfile> dataManagementPlans = DatasetWizardManager.getAvailableProfiles(this.getApiContext().getOperationsContext().getDatabaseRepository().getDmpDao(), datasetProfileWizardAutocompleteRequest);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<List<AssociatedProfile>>().status(ApiMessageCode.NO_MESSAGE).payload(dataManagementPlans));

        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<List<AssociatedProfile>>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.GET, value = {"/getSingle/{id}"}, produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DatasetWizardModel>> getSingle(@PathVariable String id, Principal principal) {
        try {
            DatasetWizardModel dataset = new DatasetManager().getSingle(this.getApiContext().getOperationsContext().getDatabaseRepository().getDatasetDao(), id);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DatasetWizardModel>().status(ApiMessageCode.NO_MESSAGE).payload(dataset));
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<DatasetWizardModel>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @Transactional
    @RequestMapping(method = RequestMethod.POST, value = {"/createOrUpdate"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<Dataset>> createOrUpdate(@RequestBody DatasetWizardModel profile, Principal principal) {
        try {
            eu.eudat.entities.Dataset dataset = DatasetManager.createOrUpdate(this.getApiContext(), profile, principal);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<eu.eudat.entities.Dataset>().status(ApiMessageCode.SUCCESS_MESSAGE).message("Created").payload(null));
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<eu.eudat.entities.Dataset>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.GET, value = {"/getWordDocument/{id}"})
    public @ResponseBody
    ResponseEntity<byte[]> getWordDocument(@PathVariable String id) throws IllegalAccessException, IOException, InstantiationException {
        try {
            File file = new DatasetManager().getWordDocument(this.getApiContext().getOperationsContext().getDatabaseRepository().getDatasetDao(), id, this.getApiContext().getUtilitiesService().getVisibilityRuleService());
            File pdffile = new DatasetManager().convertToPDF(file, environment, file.getName());
            InputStream resource = new FileInputStream(pdffile);
            System.out.println("Mime Type of " + file.getName() + " is " +
                    new MimetypesFileTypeMap().getContentType(file));
            HttpHeaders responseHeaders = new HttpHeaders();
            responseHeaders.setContentLength(pdffile.length());
            responseHeaders.setContentType(MediaType.APPLICATION_OCTET_STREAM);
            responseHeaders.set("Content-Disposition", "attachment;filename=" + pdffile.getName());
            responseHeaders.set("Access-Control-Expose-Headers", "Content-Disposition");
            responseHeaders.get("Access-Control-Expose-Headers").add("Content-Type");

            byte[] content = IOUtils.toByteArray(resource);
            return new ResponseEntity<>(content,
                    responseHeaders,
                    HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return ResponseEntity.badRequest().body(null);
        }
    }
}