package eu.eudat.controllers;


import eu.eudat.configurations.dynamicproject.DynamicProjectConfiguration;
import eu.eudat.data.dao.criteria.DynamicFieldsCriteria;
import eu.eudat.data.dao.criteria.RequestItem;
import eu.eudat.data.dao.entities.DMPDao;
import eu.eudat.data.entities.DMP;
import eu.eudat.data.query.items.item.dmp.DataManagementPlanCriteriaRequest;
import eu.eudat.data.query.items.table.dmp.DataManagementPlanTableRequest;
import eu.eudat.exceptions.datamanagementplan.DMPWithDatasetsDeleteException;
import eu.eudat.logic.managers.DataManagementPlanManager;
import eu.eudat.logic.managers.DatasetManager;
import eu.eudat.logic.managers.FileManager;
import eu.eudat.logic.services.ApiContext;
import eu.eudat.logic.services.forms.VisibilityRuleService;
import eu.eudat.logic.utilities.documents.helpers.FileEnvelope;
import eu.eudat.models.data.dmp.DataManagementPlan;
import eu.eudat.models.data.files.ContentFile;
import eu.eudat.models.data.helpermodels.Tuple;
import eu.eudat.models.data.helpers.common.DataTableData;
import eu.eudat.models.data.helpers.responses.ResponseItem;
import eu.eudat.models.data.listingmodels.DataManagementPlanListingModel;
import eu.eudat.models.data.security.Principal;
import eu.eudat.types.ApiMessageCode;
import org.apache.commons.io.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.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.activation.MimetypesFileTypeMap;
import javax.validation.Valid;
import javax.xml.bind.JAXBException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.UUID;


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

    private DynamicProjectConfiguration dynamicProjectConfiguration;
    private Environment environment;
    private DataManagementPlanManager dataManagementPlanManager;
    private DatasetManager datasetManager;
    @Autowired
    public DMPs(ApiContext apiContext, DynamicProjectConfiguration dynamicProjectConfiguration, Environment environment,
                DataManagementPlanManager dataManagementPlanManager, DatasetManager datasetManager) {
        super(apiContext);
        this.dynamicProjectConfiguration = dynamicProjectConfiguration;
        this.environment = environment;
        this.dataManagementPlanManager = dataManagementPlanManager;
        this.datasetManager = datasetManager;
    }

    @Transactional
    @RequestMapping(method = RequestMethod.GET, value = {"{id}/unlock"}, produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DMP>> unlock(@PathVariable(value = "id") UUID id, Principal principal) throws Exception {
        this.dataManagementPlanManager.unlock(id);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DMP>().status(ApiMessageCode.SUCCESS_MESSAGE).message("Unlocked"));
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/paged"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DataTableData<DataManagementPlanListingModel>>> getPaged(@Valid @RequestBody DataManagementPlanTableRequest dataManagementPlanTableRequest,@RequestParam String fieldsGroup, Principal principal) throws Exception {
        DataTableData<DataManagementPlanListingModel> dataTable = this.dataManagementPlanManager.getPaged(dataManagementPlanTableRequest, principal, fieldsGroup);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DataTableData<DataManagementPlanListingModel>>().status(ApiMessageCode.NO_MESSAGE).payload(dataTable));
    }

    @RequestMapping(method = RequestMethod.GET, value = {"{id}"})
    public @ResponseBody
    ResponseEntity getSingle(@PathVariable String id,@RequestHeader("Content-Type") String contentType, Principal principal) throws IllegalAccessException, InstantiationException, IOException {
        if(contentType.equals("application/xml") || contentType.equals("application/msword")){
            DMPDao dmpDao = this.getApiContext().getOperationsContext().getDatabaseRepository().getDmpDao();
            VisibilityRuleService visibilityRuleService = this.getApiContext().getUtilitiesService().getVisibilityRuleService();
            ResponseEntity<byte[]> document = this.dataManagementPlanManager.getDocument(id, contentType);
            return document;
        }
        else{
            eu.eudat.models.data.dmp.DataManagementPlan dataManagementPlan = this.dataManagementPlanManager.getSingle(id, principal, this.dynamicProjectConfiguration);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DataManagementPlan>().status(ApiMessageCode.NO_MESSAGE).payload(dataManagementPlan));
        }
    }

    @Transactional
    @RequestMapping(method = RequestMethod.POST, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DMP>> createOrUpdate(@RequestBody eu.eudat.models.data.dmp.DataManagementPlan dataManagementPlan, Principal principal) throws Exception {
        this.dataManagementPlanManager.createOrUpdate(this.getApiContext(), dataManagementPlan, principal);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DMP>().status(ApiMessageCode.SUCCESS_MESSAGE).message("Created"));
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/new/{id}"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DMP>> newVersion(@PathVariable UUID id, @Valid @RequestBody eu.eudat.models.data.dmp.DataManagementPlanNewVersionModel dataManagementPlan, Principal principal) throws Exception {
        this.dataManagementPlanManager.newVersion(id, dataManagementPlan, principal);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DMP>().status(ApiMessageCode.NO_MESSAGE));
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/clone/{id}"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DMP>> clone(@PathVariable UUID id, @RequestBody eu.eudat.models.data.dmp.DataManagementPlanNewVersionModel dataManagementPlan, Principal principal) throws Exception {
        this.dataManagementPlanManager.clone(id, dataManagementPlan, principal);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DMP>().status(ApiMessageCode.NO_MESSAGE));
    }

    @Transactional
    @RequestMapping(method = RequestMethod.DELETE, value = {"{id}"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<DMP>> delete(@PathVariable UUID id, Principal principal) {
        try{
            this.dataManagementPlanManager.delete(id);
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<DMP>().status(ApiMessageCode.SUCCESS_MESSAGE).message("Successfully Deleted Datamanagement Plan"));
        }catch (DMPWithDatasetsDeleteException exception){
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<DMP>().status(ApiMessageCode.ERROR_MESSAGE).message(exception.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/dynamic"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<List<Tuple<String, String>>>> getWithCriteria(@RequestBody RequestItem<DynamicFieldsCriteria> criteriaRequestItem, Principal principal) throws InstantiationException, IllegalAccessException {
        List<Tuple<String, String>> dataTable = this.dataManagementPlanManager.getDynamicFields(criteriaRequestItem.getCriteria().getId(), this.dynamicProjectConfiguration, criteriaRequestItem.getCriteria());
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<List<Tuple<String, String>>>().status(ApiMessageCode.NO_MESSAGE).payload(dataTable));
    }

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

        byte[] content = org.apache.poi.util.IOUtils.toByteArray(resource);
        return new ResponseEntity<>(content,
                responseHeaders,
                HttpStatus.OK);
    }*/

    @RequestMapping(method = RequestMethod.GET, value = {"/getPDF/{id}"})
    public @ResponseBody
    ResponseEntity<byte[]> getPDFDocument(@PathVariable String id, @RequestHeader("Content-Type") String contentType) throws IllegalAccessException, IOException, InstantiationException, InterruptedException {
        System.out.println(contentType);
        File file = this.dataManagementPlanManager.getWordDocument(id);
        File pdffile = 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 = org.apache.poi.util.IOUtils.toByteArray(resource);
        return new ResponseEntity<>(content,
                responseHeaders,
                HttpStatus.OK);
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/upload"})
    public ResponseEntity<ResponseItem> dmpXmlUpload(@RequestParam("file") MultipartFile[] files, Principal principal) throws IOException, JAXBException, Exception {
        this.dataManagementPlanManager.createDmpFromXml(this.getApiContext(), files, principal);
        return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<List>()
                .status(ApiMessageCode.SUCCESS_MESSAGE).message("Bravo Giorgo"));
    }
}