package eu.eudat.controllers;

import com.fasterxml.jackson.core.JsonProcessingException;
import eu.eudat.audit.AuditableAction;
import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.model.persist.NewVersionDmpBlueprintPersist;
import gr.cite.tools.validation.ValidationFilterAnnotation;
import eu.eudat.data.DmpBlueprintEntity;
import eu.eudat.model.DmpBlueprint;
import eu.eudat.model.builder.DmpBlueprintBuilder;
import eu.eudat.model.censorship.DmpBlueprintCensor;
import eu.eudat.model.persist.DmpBlueprintPersist;
import eu.eudat.model.result.QueryResult;
import eu.eudat.query.DmpBlueprintQuery;
import eu.eudat.query.lookup.DmpBlueprintLookup;
import eu.eudat.service.dmpblueprint.DmpBlueprintService;
import gr.cite.tools.auditing.AuditService;
import gr.cite.tools.data.builder.BuilderFactory;
import gr.cite.tools.data.censor.CensorFactory;
import gr.cite.tools.data.query.QueryFactory;
import gr.cite.tools.exception.MyApplicationException;
import gr.cite.tools.exception.MyForbiddenException;
import gr.cite.tools.exception.MyNotFoundException;
import gr.cite.tools.fieldset.FieldSet;
import gr.cite.tools.logging.LoggerService;
import gr.cite.tools.logging.MapLogEntry;
import jakarta.transaction.Transactional;
import jakarta.xml.bind.JAXBException;
import org.slf4j.LoggerFactory;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.xml.sax.SAXException;

import javax.management.InvalidApplicationException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.util.AbstractMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@RestController
@RequestMapping(path = "api/dmp-blueprint")
public class DmpBlueprintController {

    private static final LoggerService logger = new LoggerService(LoggerFactory.getLogger(DmpBlueprintController.class));

    private final BuilderFactory builderFactory;

    private final AuditService auditService;

    private final DmpBlueprintService dmpBlueprintService;

    private final CensorFactory censorFactory;

    private final QueryFactory queryFactory;

    private final MessageSource messageSource;

    public DmpBlueprintController(
            BuilderFactory builderFactory,
            AuditService auditService,
            DmpBlueprintService dmpBlueprintService,
            CensorFactory censorFactory,
            QueryFactory queryFactory,
            MessageSource messageSource) {
        this.builderFactory = builderFactory;
        this.auditService = auditService;
        this.dmpBlueprintService = dmpBlueprintService;
        this.censorFactory = censorFactory;
        this.queryFactory = queryFactory;
        this.messageSource = messageSource;
    }

    @PostMapping("query")
    public QueryResult<DmpBlueprint> query(@RequestBody DmpBlueprintLookup lookup) throws MyApplicationException, MyForbiddenException {
        logger.debug("querying {}", DmpBlueprint.class.getSimpleName());

        this.censorFactory.censor(DmpBlueprintCensor.class).censor(lookup.getProject(), null);
        DmpBlueprintQuery query = lookup.enrich(this.queryFactory).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission);

        List<DmpBlueprintEntity> data = query.collectAs(lookup.getProject());
        List<DmpBlueprint> models = this.builderFactory.builder(DmpBlueprintBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).build(lookup.getProject(), data);
        long count = (lookup.getMetadata() != null && lookup.getMetadata().getCountAll()) ? query.count() : models.size();

        this.auditService.track(AuditableAction.DmpBlueprint_Query, "lookup", lookup);

        return new QueryResult<>(models, count);
    }

    @GetMapping("{id}")
    public DmpBlueprint get(@PathVariable("id") UUID id, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException {
        logger.debug(new MapLogEntry("retrieving" + DmpBlueprint.class.getSimpleName()).And("id", id).And("fields", fieldSet));

        this.censorFactory.censor(DmpBlueprintCensor.class).censor(fieldSet, null);

        DmpBlueprintQuery query = this.queryFactory.query(DmpBlueprintQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).ids(id);
        DmpBlueprint model = this.builderFactory.builder(DmpBlueprintBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).build(fieldSet, query.firstAs(fieldSet));
        if (model == null)
            throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{id, DmpBlueprint.class.getSimpleName()}, LocaleContextHolder.getLocale()));

        this.auditService.track(AuditableAction.DmpBlueprint_Lookup, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("id", id),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return model;
    }

    @PostMapping("persist")
    @Transactional
    @ValidationFilterAnnotation(validator = DmpBlueprintPersist.DmpBlueprintPersistValidator.ValidatorName, argumentName = "model")
    public DmpBlueprint persist(@RequestBody DmpBlueprintPersist model, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, InvalidApplicationException, JAXBException, ParserConfigurationException, JsonProcessingException, TransformerException {
        logger.debug(new MapLogEntry("persisting" + DmpBlueprint.class.getSimpleName()).And("model", model).And("fieldSet", fieldSet));
        this.censorFactory.censor(DmpBlueprintCensor.class).censor(fieldSet, null);

        DmpBlueprint persisted = this.dmpBlueprintService.persist(model, fieldSet);

        this.auditService.track(AuditableAction.DmpBlueprint_Persist, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("model", model),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return persisted;
    }

    @DeleteMapping("{id}")
    @Transactional
    public void delete(@PathVariable("id") UUID id) throws MyForbiddenException, InvalidApplicationException {
        logger.debug(new MapLogEntry("retrieving" + DmpBlueprint.class.getSimpleName()).And("id", id));

        this.dmpBlueprintService.deleteAndSave(id);

        this.auditService.track(AuditableAction.DmpBlueprint_Delete, "id", id);
    }

    @GetMapping("clone/{id}")
    public DmpBlueprint buildClone(@PathVariable("id") UUID id, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException {
        logger.debug(new MapLogEntry("clone" + DmpBlueprint.class.getSimpleName()).And("id", id).And("fields", fieldSet));

        this.censorFactory.censor(DmpBlueprintCensor.class).censor(fieldSet, null);

        DmpBlueprint model = this.dmpBlueprintService.buildClone(id, fieldSet);

        this.auditService.track(AuditableAction.DmpBlueprint_Clone, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("id", id),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return model;
    }

    @PostMapping("new-version")
    @Transactional
    @ValidationFilterAnnotation(validator = NewVersionDmpBlueprintPersist.NewVersionDmpBlueprintPersistValidator.ValidatorName, argumentName = "model")
    public DmpBlueprint createNewVersion(@RequestBody NewVersionDmpBlueprintPersist model, FieldSet fieldSet) throws JAXBException, InvalidApplicationException, ParserConfigurationException, JsonProcessingException, TransformerException {
        logger.debug(new MapLogEntry("persisting" + NewVersionDmpBlueprintPersist.class.getSimpleName()).And("model", model).And("fieldSet", fieldSet));
        DmpBlueprint persisted = this.dmpBlueprintService.createNewVersion(model, fieldSet);

        this.auditService.track(AuditableAction.DmpBlueprint_PersistNewVersion, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("model", model),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return persisted;
    }

    @RequestMapping(method = RequestMethod.GET, value = {"/xml/export/{id}"}, produces = "application/xml")
    public @ResponseBody ResponseEntity<byte[]> getXml(@PathVariable UUID id) throws JAXBException, ParserConfigurationException, IOException, TransformerException, InstantiationException, IllegalAccessException, SAXException, InvalidApplicationException {
        logger.debug(new MapLogEntry("export" + DmpBlueprint.class.getSimpleName()).And("id", id));

        ResponseEntity<byte[]> response = this.dmpBlueprintService.exportXml(id);

        this.auditService.track(AuditableAction.DmpBlueprint_GetXml, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("id", id)
        ));
        return response;
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/xml/import"})
    public DmpBlueprint importXml(@RequestParam("file") MultipartFile file, FieldSet fieldSet) throws IOException, JAXBException, InvalidApplicationException, ParserConfigurationException, TransformerException, InstantiationException, IllegalAccessException, SAXException {
        logger.debug(new MapLogEntry("clone" + DmpBlueprint.class.getSimpleName()).And("file", file));

        this.censorFactory.censor(DmpBlueprintCensor.class).censor(fieldSet, null);

        DmpBlueprint model = this.dmpBlueprintService.importXml(file.getBytes(), file.getOriginalFilename(), fieldSet);

        this.auditService.track(AuditableAction.DmpBlueprint_Import, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("file", file),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return model;
    }
}