/*
 * This file is part of onkostar-plugin-dnpm
 *
 * Copyright (C) 2023-2026 the original author or authors.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package dev.dnpm.oshelper.analyzer;

import dev.dnpm.oshelper.dto.Studie;
import dev.dnpm.oshelper.dto.Variant;
import dev.dnpm.oshelper.security.PermissionType;
import dev.dnpm.oshelper.security.PersonPoolBasedPermissionEvaluator;
import dev.dnpm.oshelper.services.StudienService;
import dev.dnpm.oshelper.services.molekulargenetik.MolekulargenetikFormService;
import de.itc.onkostar.api.Disease;
import de.itc.onkostar.api.IOnkostarApi;
import de.itc.onkostar.api.Procedure;
import de.itc.onkostar.api.analysis.AnalyzerRequirement;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;

import java.util.List;
import java.util.Map;

/**
 * Diese Klasse implementiert ein Plugin, welches Funktionen für DNPM UF Einzelempfehlung bereitstellt.
 *
 * @since 0.2.0
 */
@Component
public class EinzelempfehlungAnalyzer extends BackendService {

    private final static Logger logger = LoggerFactory.getLogger(EinzelempfehlungAnalyzer.class);

    private final IOnkostarApi onkostarApi;

    private final MolekulargenetikFormService molekulargenetikFormService;

    private final StudienService studienService;

    private final PersonPoolBasedPermissionEvaluator permissionEvaluator;

    public EinzelempfehlungAnalyzer(
            final IOnkostarApi onkostarApi,
            final StudienService studienService,
            final MolekulargenetikFormService molekulargenetikFormService,
            final PersonPoolBasedPermissionEvaluator permissionEvaluator
    ) {
        this.onkostarApi = onkostarApi;
        this.studienService = studienService;
        this.molekulargenetikFormService = molekulargenetikFormService;
        this.permissionEvaluator = permissionEvaluator;
    }

    @Override
    public String getDescription() {
        return "Stellt Funktionen zur Nutzung im Therapieplan-Unterformular für Einzelempfehlungen bereit";
    }

    /**
     * @deprecated
     */
    @Override
    public boolean isRelevantForDeletedProcedure() {
        return false;
    }

    @Override
    public boolean isRelevantForAnalyzer(Procedure procedure, Disease disease) {
        return false;
    }

    @Override
    public boolean isSynchronous() {
        return false;
    }

    @Override
    public AnalyzerRequirement getRequirement() {
        return AnalyzerRequirement.PROCEDURE;
    }

    public List<Variant> getVariants(Map<String, Object> input) {
        var procedureId = AnalyzerUtils.getRequiredId(input, "id");

        if (procedureId.isEmpty()) {
            return List.of();
        }

        var procedure = onkostarApi.getProcedure(procedureId.get());
        if (null == procedure) {
            return List.of();
        }

        if (permissionEvaluator.hasPermission(SecurityContextHolder.getContext().getAuthentication(), procedure, PermissionType.READ)) {
            return molekulargenetikFormService.getVariants(procedure);
        } else {
            logger.error("Security: No permission to access procedure '{}'", procedure.getId());
            return List.of();
        }
    }

    /**
     * Übergibt alle Studien, deren (Kurz-)Beschreibung oder NCT-Nummer den übergebenen Eingabewert <code>q</code> enthält
     *
     * <p>Wurde der Eingabewert nicht angegeben oder ist leer, werden alle Studien übergeben.
     *
     * <p>Beispiel zur Nutzung in einem Formularscript
     * <pre>
     * executePluginMethod(
     *   'TherapieplanAnalyzer',
     *   'getStudien',
     *   { q: 'NCT-12', inactive: true },
     *   (response) => console.log(response),
     *   false
     * );
     * </pre>
     *
     * @param input Map mit Eingabewerten
     * @return Liste mit Studien
     */
    public List<Studie> getStudien(Map<String, Object> input) {
        var query = AnalyzerUtils.getRequiredValue(input, "q", String.class);
        var inactive = AnalyzerUtils.getRequiredValue(input, "inactive", Boolean.class).orElse(false);

        if (query.isEmpty() || query.get().isBlank()) {
            if (inactive) {
                return studienService.findAll();
            }
            return studienService.findActive();
        }
        if (inactive) {
            return studienService.findByQuery(query.get());
        }
        return studienService.findActiveByQuery(query.get());
    }

}