/*
 * Copyright (C) 2019-2022 LitterBox contributors
 *
 * This file is part of LitterBox.
 *
 * LitterBox is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * LitterBox 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with LitterBox. If not, see <http://www.gnu.org/licenses/>.
 */
package de.uni_passau.fim.se2.litterbox.analytics.smells;

import de.uni_passau.fim.se2.litterbox.analytics.AbstractIssueFinder;
import de.uni_passau.fim.se2.litterbox.analytics.IssueType;
import de.uni_passau.fim.se2.litterbox.ast.model.Script;
import de.uni_passau.fim.se2.litterbox.ast.model.event.StartedAsClone;
import de.uni_passau.fim.se2.litterbox.ast.model.procedure.ProcedureDefinition;
import de.uni_passau.fim.se2.litterbox.ast.model.statement.control.IfStmt;
import de.uni_passau.fim.se2.litterbox.ast.model.statement.control.RepeatForeverStmt;
import de.uni_passau.fim.se2.litterbox.ast.model.statement.control.RepeatTimesStmt;
import de.uni_passau.fim.se2.litterbox.ast.model.statement.control.UntilStmt;
import de.uni_passau.fim.se2.litterbox.ast.model.statement.termination.DeleteClone;

public class DeleteCloneInLoop extends AbstractIssueFinder {
    private static final String NAME = "delete_clone_in_loop";
    private boolean insideLoop;
    private boolean insideIf;

    @Override
    public IssueType getIssueType() {
        return IssueType.SMELL;
    }

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public void visit(Script node) {
        if (node.getEvent() instanceof StartedAsClone) {
            super.visit(node);
        }
    }

    @Override
    public void visit(RepeatForeverStmt node) {
        insideLoop = true;
        super.visit(node);
        insideLoop = false;
    }

    @Override
    public void visit(RepeatTimesStmt node) {
        insideLoop = true;
        super.visit(node);
        insideLoop = false;
    }

    @Override
    public void visit(UntilStmt node) {
        insideLoop = true;
        super.visit(node);
        insideLoop = false;
    }

    @Override
    public void visit(IfStmt node) {
        insideIf = true;
        super.visit(node);
        insideIf = false;
    }

    @Override
    public void visit(DeleteClone node) {
        if (insideLoop && !insideIf) {
            addIssue(node, node.getMetadata());
        }
    }

    @Override
    public void visit(ProcedureDefinition node) {
        // NOP as it shouldn't be detected in Procedures
    }

}
