/*
 * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.controller.yang.model.parser.builder.impl;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.opendaylight.controller.yang.common.QName;
import org.opendaylight.controller.yang.model.api.FeatureDefinition;
import org.opendaylight.controller.yang.model.api.SchemaPath;
import org.opendaylight.controller.yang.model.api.Status;
import org.opendaylight.controller.yang.model.api.UnknownSchemaNode;
import org.opendaylight.controller.yang.model.parser.builder.api.SchemaNodeBuilder;

public class FeatureBuilder implements SchemaNodeBuilder {

    private final FeatureDefinitionImpl instance;
    private final QName qname;
    private final List<UnknownSchemaNodeBuilder> addedUnknownNodes = new ArrayList<UnknownSchemaNodeBuilder>();

    FeatureBuilder(QName qname) {
        this.qname = qname;
        instance = new FeatureDefinitionImpl(qname);
    }

    @Override
    public FeatureDefinitionImpl build() {
        // UNKNOWN NODES
        final List<UnknownSchemaNode> unknownNodes = new ArrayList<UnknownSchemaNode>();
        for(UnknownSchemaNodeBuilder b : addedUnknownNodes) {
            unknownNodes.add(b.build());
        }
        instance.setUnknownSchemaNodes(unknownNodes);

        return instance;
    }

    @Override
    public QName getQName() {
        return qname;
    }

    @Override
    public void setPath(SchemaPath path) {
        instance.setPath(path);
    }

    @Override
    public void setDescription(String description) {
        instance.setDescription(description);
    }

    @Override
    public void setReference(String reference) {
        instance.setReference(reference);
    }

    @Override
    public void setStatus(Status status) {
        instance.setStatus(status);
    }

    @Override
    public void addUnknownSchemaNode(UnknownSchemaNodeBuilder unknownSchemaNodeBuilder) {
        addedUnknownNodes.add(unknownSchemaNodeBuilder);
    }

    private static class FeatureDefinitionImpl implements FeatureDefinition {
        private final QName qname;
        private SchemaPath path;
        private String description;
        private String reference;
        private Status status;
        private List<UnknownSchemaNode> unknownSchemaNodes = Collections
                .emptyList();

        private FeatureDefinitionImpl(QName qname) {
            this.qname = qname;
        }

        @Override
        public QName getQName() {
            return qname;
        }

        @Override
        public SchemaPath getPath() {
            return path;
        }

        private void setPath(SchemaPath path) {
            this.path = path;
            ;
        }

        @Override
        public String getDescription() {
            return description;
        }

        private void setDescription(String description) {
            this.description = description;
        }

        @Override
        public String getReference() {
            return reference;
        }

        private void setReference(String reference) {
            this.reference = reference;
        }

        @Override
        public Status getStatus() {
            return status;
        }

        private void setStatus(Status status) {
            this.status = status;
        }

        @Override
        public List<UnknownSchemaNode> getUnknownSchemaNodes() {
            return unknownSchemaNodes;
        }

        private void setUnknownSchemaNodes(List<UnknownSchemaNode> unknownSchemaNodes) {
            if(unknownSchemaNodes != null) {
                this.unknownSchemaNodes = unknownSchemaNodes;
            }
        }

        @Override
        public int hashCode() {
            final int prime = 31;
            int result = 1;
            result = prime * result + ((qname == null) ? 0 : qname.hashCode());
            result = prime * result + ((path == null) ? 0 : path.hashCode());
            return result;
        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (obj == null) {
                return false;
            }
            if (getClass() != obj.getClass()) {
                return false;
            }
            FeatureDefinitionImpl other = (FeatureDefinitionImpl) obj;
            if (qname == null) {
                if (other.qname != null) {
                    return false;
                }
            } else if (!qname.equals(other.qname)) {
                return false;
            }
            if (path == null) {
                if (other.path != null) {
                    return false;
                }
            } else if (!path.equals(other.path)) {
                return false;
            }
            return true;
        }

        @Override
        public String toString() {
            StringBuilder sb = new StringBuilder(
                    FeatureDefinitionImpl.class.getSimpleName());
            sb.append("[name=" + qname);
            sb.append(", path=" + path + "]");
            return sb.toString();
        }
    }

}