package eu.eudat.controllers.v2;

import com.fasterxml.jackson.core.JsonProcessingException;
import eu.eudat.audit.AuditableAction;
import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.validation.ValidationFilterAnnotation;
import eu.eudat.data.LanguageEntity;
import eu.eudat.model.Language;
import eu.eudat.model.UserContactInfo;
import eu.eudat.model.builder.LanguageBuilder;
import eu.eudat.model.censorship.LanguageCensor;
import eu.eudat.model.persist.LanguagePersist;
import eu.eudat.model.result.QueryResult;
import eu.eudat.query.LanguageQuery;
import eu.eudat.query.lookup.LanguageLookup;
import eu.eudat.service.language.LanguageService;
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.Ordering;
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.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.web.bind.annotation.*;

import javax.management.InvalidApplicationException;
import java.io.IOException;
import java.util.AbstractMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.stream.Collectors;

@RestController
@RequestMapping(path = {"api/language"})
public class LanguageController {

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

    private final BuilderFactory builderFactory;

    private final AuditService auditService;

    private final CensorFactory censorFactory;

    private final QueryFactory queryFactory;

    private final MessageSource messageSource;

    private final LanguageService languageService;

    @Autowired
    public LanguageController(
            BuilderFactory builderFactory,
            AuditService auditService,
            CensorFactory censorFactory,
            QueryFactory queryFactory,
            MessageSource messageSource,
            LanguageService languageService) {
        this.builderFactory = builderFactory;
        this.auditService = auditService;
        this.censorFactory = censorFactory;
        this.queryFactory = queryFactory;
        this.messageSource = messageSource;
        this.languageService = languageService;
    }

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

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

        LanguageQuery query = lookup.enrich(this.queryFactory).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic);
        List<LanguageEntity> data = query.collectAs(lookup.getProject());
        List<Language> models = this.builderFactory.builder(LanguageBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic).build(lookup.getProject(), data);
        long count = (lookup.getMetadata() != null && lookup.getMetadata().getCountAll()) ? query.count() : models.size();

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

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

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

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

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

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

        return model;
    }

    @GetMapping("public/code/{code}")
    public Language get(@PathVariable("code") String code, FieldSet fieldSet) throws MyApplicationException, MyForbiddenException, MyNotFoundException, IOException {
        logger.debug(new MapLogEntry("retrieving" + Language.class.getSimpleName()).And("code", code).And("fields", fieldSet));

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

        LanguageQuery query = this.queryFactory.query(LanguageQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic).codes(code);
        Language model = this.builderFactory.builder(LanguageBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic).build(fieldSet, query.firstAs(fieldSet));

        if (model == null)
            throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{code, Language.class.getSimpleName()}, LocaleContextHolder.getLocale()));

        if (model.getPayload() == null) {
            model.setPayload(this.languageService.getPayload(code));
        }
        this.auditService.track(AuditableAction.Language_Lookup, Map.ofEntries(
                new AbstractMap.SimpleEntry<String, Object>("code", code),
                new AbstractMap.SimpleEntry<String, Object>("fields", fieldSet)
        ));

        return model;
    }

    @PostMapping("public/available-languages")
    public QueryResult<String> queryLanguageCodes(@RequestBody LanguageLookup lookup) {
        logger.debug("querying {}", Language.class.getSimpleName());

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

        LanguageQuery query = lookup.enrich(this.queryFactory).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic);
        query.setOrder(new Ordering().addAscending(Language._ordinal));
        List<LanguageEntity> data = query.collectAs(lookup.getProject());
        List<Language> models = this.builderFactory.builder(LanguageBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermissionOrPublic).build(lookup.getProject(), data);

        long count = (lookup.getMetadata() != null && lookup.getMetadata().getCountAll()) ? query.count() : models.size();

        return new QueryResult<>(models.stream().map(Language::getCode).collect(Collectors.toList()), count);
    }

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

        Language persisted = this.languageService.persist(model, fieldSet);

        this.auditService.track(AuditableAction.Language_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" + Language.class.getSimpleName()).And("id", id));

        this.languageService.deleteAndSave(id);

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

}