package eu.eudat.controllers;

import eu.eudat.audit.AuditableAction;
import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.enums.DmpAccessType;
import eu.eudat.commons.enums.DmpStatus;
import eu.eudat.commons.enums.IsActive;
import eu.eudat.model.builder.PublicDmpBuilder;
import gr.cite.tools.validation.ValidationFilterAnnotation;
import eu.eudat.model.*;
import eu.eudat.model.builder.DmpBuilder;
import eu.eudat.model.censorship.DmpCensor;
import eu.eudat.model.censorship.PublicDmpCensor;
import eu.eudat.model.persist.*;
import eu.eudat.model.result.QueryResult;
import eu.eudat.query.DmpQuery;
import eu.eudat.query.lookup.DmpLookup;
import eu.eudat.service.dmp.DmpService;
import eu.eudat.service.elastic.ElasticQueryHelperService;
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.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.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import javax.management.InvalidApplicationException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.util.*;

import static eu.eudat.authorization.AuthorizationFlags.Public;

@RestController
@RequestMapping(path = "api/dmp")
public class DmpController {

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

    private final BuilderFactory builderFactory;

    private final AuditService auditService;

    private final DmpService dmpService;

    private final CensorFactory censorFactory;

    private final QueryFactory queryFactory;

    private final MessageSource messageSource;
    private final ElasticQueryHelperService elasticQueryHelperService;


    public DmpController(
		    BuilderFactory builderFactory,
		    AuditService auditService,
		    DmpService dmpService,
		    CensorFactory censorFactory,
		    QueryFactory queryFactory,
		    MessageSource messageSource, 
            ElasticQueryHelperService elasticQueryHelperService) {
        this.builderFactory = builderFactory;
        this.auditService = auditService;
        this.dmpService = dmpService;
        this.censorFactory = censorFactory;
        this.queryFactory = queryFactory;
        this.messageSource = messageSource;
	    this.elasticQueryHelperService = elasticQueryHelperService;
    }    
    
    @PostMapping("public/query")
    public QueryResult<PublicDmp> publicQuery(@RequestBody DmpLookup lookup) throws MyApplicationException, MyForbiddenException {
        logger.debug("querying {}", Dmp.class.getSimpleName());

        this.censorFactory.censor(PublicDmpCensor.class).censor(lookup.getProject());

        //DmpQuery query = lookup.enrich(this.queryFactory).authorize(EnumSet.of(Public)).dmpSubQuery(this.queryFactory.query(DmpQuery.class).isActive(IsActive.Active).statuses(DmpStatus.Finalized).accessTypes(DmpAccessType.Public));
        QueryResult<PublicDmp> queryResult = this.elasticQueryHelperService.collectPublic(lookup, EnumSet.of(Public), null);

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

        return queryResult;
    }

    @GetMapping("public/{id}")
    public PublicDmp publicGet(@PathVariable("id") UUID id, FieldSet fieldSet, Locale locale) throws MyApplicationException, MyForbiddenException, MyNotFoundException {
        logger.debug(new MapLogEntry("retrieving" + Dmp.class.getSimpleName()).And("id", id).And("fields", fieldSet));

        this.censorFactory.censor(PublicDmpCensor.class).censor(fieldSet);

        DmpQuery query =  this.queryFactory.query(DmpQuery.class).authorize(EnumSet.of(Public)).ids(id).isActive(IsActive.Active).statuses(DmpStatus.Finalized).accessTypes(DmpAccessType.Public);

        PublicDmp model = this.builderFactory.builder(PublicDmpBuilder.class).authorize(EnumSet.of(Public)).build(fieldSet, query.firstAs(fieldSet));
        if (model == null) throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{id, Dmp.class.getSimpleName()}, LocaleContextHolder.getLocale()));

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

        return model;
    }

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

        this.censorFactory.censor(DmpCensor.class).censor(lookup.getProject(), null);

        QueryResult<Dmp> queryResult = this.elasticQueryHelperService.collect(lookup, AuthorizationFlags.OwnerOrDmpAssociatedOrPermission, null);

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

        return queryResult;
    }

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

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

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

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

        return model;
    }

    @PostMapping("persist")
    @Transactional
    @ValidationFilterAnnotation(validator = DmpPersist.DmpPersistValidator.ValidatorName, argumentName = "model")
    public Dmp Persist(@RequestBody DmpPersist model, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, InvalidApplicationException, IOException, JAXBException {
        logger.debug(new MapLogEntry("persisting" + Dmp.class.getSimpleName()).And("model", model).And("fieldSet", fieldSet));

        Dmp persisted = this.dmpService.persist(model, fieldSet);

        this.auditService.track(AuditableAction.Dmp_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, IOException {
        logger.debug(new MapLogEntry("retrieving" + Dmp.class.getSimpleName()).And("id", id));

        this.dmpService.deleteAndSave(id);

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

    @PostMapping("finalize/{id}")
    @Transactional
    public boolean finalize(@PathVariable("id") UUID id, @RequestBody DescriptionsToBeFinalized descriptions) throws MyApplicationException, MyForbiddenException, MyNotFoundException, InvalidApplicationException, IOException {
        logger.debug(new MapLogEntry("finalizing" + Dmp.class.getSimpleName()).And("id", id).And("descriptionIds", descriptions.getDescriptionIds()));

        this.dmpService.finalize(id, descriptions.getDescriptionIds());

        this.auditService.track(AuditableAction.Dmp_Finalize, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("id", id),
                new AbstractMap.SimpleEntry<String, Object>("descriptionIds", descriptions.getDescriptionIds())
        ));

        return true;
    }

    @GetMapping("undo-finalize/{id}")
    @Transactional
    public boolean undoFinalize(@PathVariable("id") UUID id, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, InvalidApplicationException, IOException, JAXBException {
        logger.debug(new MapLogEntry("undo-finalizing" + Dmp.class.getSimpleName()).And("id", id));

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

        this.dmpService.undoFinalize(id, fieldSet);

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

        return true;
    }

    @GetMapping("validate/{id}")
    public DmpValidationResult validate(@PathVariable("id") UUID id) throws MyApplicationException, MyForbiddenException, MyNotFoundException, InvalidApplicationException {
        logger.debug(new MapLogEntry("validating" + Dmp.class.getSimpleName()).And("id", id));

        this.censorFactory.censor(DmpCensor.class).censor(null, null);

        DmpValidationResult result = this.dmpService.validate(id);

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

        return result;
    }

    @PostMapping("clone")
    @Transactional
    @ValidationFilterAnnotation(validator = CloneDmpPersist.CloneDmpPersistValidator.ValidatorName, argumentName = "model")
    public Dmp buildClone(@RequestBody CloneDmpPersist model, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, IOException, InvalidApplicationException {
        logger.debug(new MapLogEntry("clone" + Dmp.class.getSimpleName()).And("model", model).And("fields", fieldSet));

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

        Dmp clone = this.dmpService.buildClone(model, fieldSet);

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

        return clone;
    }

    @PostMapping("new-version")
    @Transactional
    @ValidationFilterAnnotation(validator = NewVersionDmpPersist.NewVersionDmpPersistValidator.ValidatorName, argumentName = "model")
    public Dmp createNewVersion(@RequestBody NewVersionDmpPersist model, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, JAXBException, IOException, TransformerException, InvalidApplicationException, ParserConfigurationException {
        logger.debug(new MapLogEntry("persisting" + NewVersionDmpPersist.class.getSimpleName()).And("model", model).And("fieldSet", fieldSet));

        Dmp persisted = this.dmpService.createNewVersion(model, fieldSet);

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

        return persisted;
    }

    @PostMapping("{id}/assign-users")
    @Transactional
    @ValidationFilterAnnotation(validator = DmpUserPersist.DmpUserPersistValidator.ValidatorName, argumentName = "model")
    public QueryResult<DmpUser> assignUsers(@PathVariable("id") UUID id, @RequestBody List<DmpUserPersist> model, FieldSet fieldSet) throws InvalidApplicationException, IOException {
        logger.debug(new MapLogEntry("assigning users to dmp").And("model", model).And("fieldSet", fieldSet));

        List<DmpUser> persisted = this.dmpService.assignUsers(id, model, fieldSet, false);

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

        return new QueryResult<>(persisted);
    }

    @PostMapping("remove-user")
    @Transactional
    @ValidationFilterAnnotation(validator = DmpUserRemovePersist.DmpUserRemovePersistValidator.ValidatorName, argumentName = "model")
    public QueryResult<Dmp> removeUser(@RequestBody DmpUserRemovePersist model, FieldSet fieldSet) throws InvalidApplicationException, IOException {
        logger.debug(new MapLogEntry("remove user from dmp").And("model", model).And("fieldSet", fieldSet));

        Dmp persisted = this.dmpService.removeUser(model, fieldSet);

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

        return new QueryResult<>(persisted);
    }

    @GetMapping("{id}/export/{transformerId}/{type}")
    public ResponseEntity<byte[]> export(@PathVariable("id") UUID id, @PathVariable("transformerId") String transformerId, @PathVariable("type") String exportType) throws InvalidApplicationException, IOException {
        logger.debug(new MapLogEntry("exporting dmp").And("id", id).And("transformerId", transformerId).And("exportType", exportType));

        ResponseEntity<byte[]> bytes = this.dmpService.export(id, transformerId, exportType);
        this.auditService.track(AuditableAction.Dmp_Export, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("id", id),
                new AbstractMap.SimpleEntry<String, Object>("transformerId", transformerId),
                new AbstractMap.SimpleEntry<String, Object>("exportType", exportType)
        ));
        return bytes;
    }

    @PostMapping("{id}/invite-users")
    @Transactional
    @ValidationFilterAnnotation(validator = DmpUserInvitePersist.DmpUserInvitePersistValidator.ValidatorName, argumentName = "model")
    public boolean inviteUsers(@PathVariable("id") UUID id, @RequestBody DmpUserInvitePersist model) throws InvalidApplicationException, JAXBException, IOException {
        logger.debug(new MapLogEntry("inviting users to dmp").And("model", model));

        this.dmpService.inviteUserOrAssignUsers(id, model.getUsers());

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

        return true;
    }

    @GetMapping("{id}/token/{token}/invite-accept")
    @Transactional
    public boolean acceptInvitation(@PathVariable("id") UUID id, @PathVariable("token") String token) throws InvalidApplicationException, JAXBException, IOException {
        logger.debug(new MapLogEntry("inviting users to dmp").And("id", id));

        this.dmpService.dmpInvitationAccept(token);

        this.auditService.track(AuditableAction.Dmp_Invite_Accept, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("token", token)
        ));

        return true;
    }

}