/*
 *  Copyright (c) 2012 Sam Harwell, Tunnel Vision Laboratories LLC
 *  All rights reserved.
 *
 *  The source code of this document is proprietary work, and is not licensed for
 *  distribution. For information about licensing, contact Sam Harwell at:
 *      sam@tunnelvisionlabs.com
 */
package org.tvl.goworks.editor.go.codemodel.impl;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.antlr.netbeans.editor.text.OffsetRegion;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.misc.Utils;
import org.antlr.v4.runtime.tree.TerminalNode;
import org.netbeans.api.annotations.common.NonNull;
import org.netbeans.api.annotations.common.NullAllowed;
import org.tvl.goworks.editor.go.codemodel.CodeElementPositionRegion;
import org.tvl.goworks.editor.go.codemodel.TypeModel;

/**
 *
 * @author Sam Harwell
 */
public abstract class TypeModelImpl extends AbstractCodeElementModel implements TypeModel {

    private final OffsetRegion seek;
    private final OffsetRegion span;

    public TypeModelImpl(@NonNull String name, @NonNull FileModelImpl fileModel, @NullAllowed TerminalNode seek, @NullAllowed ParserRuleContext span) {
        super(name, fileModel);
        this.seek = getOffsetRegion(seek);
        this.span = getOffsetRegion(span);
    }

    @Override
    public CodeElementPositionRegion getSeek() {
        if (this.seek == null) {
            return super.getSeek();
        }

        return new CodeElementPositionRegionImpl(this, seek);
    }

    @Override
    public CodeElementPositionRegion getSpan() {
        if (this.span == null) {
            return super.getSpan();
        }

        return new CodeElementPositionRegionImpl(this, span);
    }

    @Override
    public Collection<? extends TypeModelImpl> resolve() {
        return Collections.singletonList(this);
    }

    public abstract boolean isResolved();

    @Override
    public Collection<FieldModelImpl> getFields() {
        return Collections.emptyList();
    }

    @Override
    public Collection<FieldModelImpl> getFields(String name) {
        return CodeModelCacheImpl.findElementsByName(getFields(), name);
    }

    @Override
    public Collection<FunctionModelImpl> getMethods() {
        return Collections.emptyList();
    }

    @Override
    public Collection<FunctionModelImpl> getMethods(String name) {
        return CodeModelCacheImpl.findElementsByName(getMethods(), name);
    }

    @Override
    public Collection<? extends AbstractCodeElementModel> getMembers() {
        List<AbstractCodeElementModel> members = new ArrayList<>();
        members.addAll(getFields());
        members.addAll(getMethods());
        return members;
    }

    @Override
    public Collection<? extends AbstractCodeElementModel> getMembers(String name) {
        List<AbstractCodeElementModel> members = new ArrayList<>();
        members.addAll(getFields(name));
        members.addAll(getMethods(name));
        return members;
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof TypeModel)) {
            return false;
        }

        TypeModel other = (TypeModel)obj;
        return getKind().equals(other.getKind())
            && Utils.equals(getPackage(), other.getPackage())
            && getName().equals(other.getName());
    }

    @Override
    public int hashCode() {
        int hashCode = 1;
        hashCode = 7 * hashCode + getKind().hashCode();
        PackageModelImpl packageModel = getPackage();
        hashCode = 7 * hashCode + (packageModel != null ? packageModel.hashCode() : 0);
        hashCode = 7 * hashCode + getName().hashCode();
        return hashCode;
    }

    @Override
    public String toString() {
        return getSimpleName();
    }

}