/*
 * Copyright 2012 Nodeable Inc
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.streamreduce.core.model;

import com.google.code.morphia.annotations.Entity;
import com.google.code.morphia.annotations.Indexed;
import com.google.code.morphia.annotations.Reference;
import com.mongodb.DBObject;
import org.apache.commons.lang.StringUtils;
import org.bson.types.ObjectId;
import org.hibernate.validator.constraints.NotEmpty;

import javax.validation.constraints.NotNull;

@Entity(value = "inventoryItems", noClassnameStored = true)
public class InventoryItem extends SobaObject {

    private static final long serialVersionUID = 6833894297362799580L;

    @Reference(ignoreMissing = true)
    @NotNull
    @Indexed(dropDups = false, unique = false)
    private Connection connection;
    private boolean deleted;
    @NotEmpty
    private String type;
    @NotNull
    private ObjectId metadataId;

    public boolean isDeleted() {
        return deleted;
    }

    public void setDeleted(boolean deleted) {
        this.deleted = deleted;
    }

    public Connection getConnection() {
        return connection;
    }

    public void setConnection(Connection connection) {
        this.connection = connection;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public ObjectId getMetadataId() {
        return metadataId;
    }

    public void setMetadataId(ObjectId metadataId) {
        this.metadataId = metadataId;
    }

    @SuppressWarnings("rawtypes")
    public static class Builder extends SobaObject.Builder<InventoryItem, Builder> {

        public Builder() {
            super(new InventoryItem());
        }

        @Override
        public InventoryItem build() {
            if (theObject.connection == null) {
                throw new IllegalStateException("Connection cannot be null");
            }
            if (StringUtils.isBlank(theObject.getType())) {
                throw new IllegalStateException("type must not be empty");
            }
            if (theObject.getMetadataId() == null) {
                throw new IllegalStateException("metadataId cannot be null");
            }

            return super.build();

        }

        public Builder connection(Connection connection) {
            if (isBuilt) {
                throw new IllegalStateException("The object cannot be modified after built.");
            }
            theObject.setConnection(connection);
            // inherit the connections visibility -- can you override.
            theObject.setVisibility(connection.getVisibility());
            return getRealBuilder();
        }

        public Builder deleted(boolean deleted) {
            if (isBuilt) {
                throw new IllegalStateException("The object cannot be modified after built.");
            }
            theObject.setDeleted(deleted);
            return getRealBuilder();
        }

        public Builder type(String type) {
            if (isBuilt) {
                throw new IllegalStateException("The object cannot be modified after built.");
            }
            theObject.setType(type);
            return getRealBuilder();
        }

        public Builder metadata(DBObject metadata) {
            if (isBuilt) {
                throw new IllegalStateException("The object cannot be modified after built.");
            }
            theObject.setMetadataId((ObjectId) metadata.get("_id"));
            return getRealBuilder();
        }

        public Builder metadataId(ObjectId metadataId) {
            if (isBuilt) {
                throw new IllegalStateException("The object cannot be modified after built.");
            }
            theObject.setMetadataId(metadataId);
            return getRealBuilder();
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public Builder getRealBuilder() {
            return this;
        }

    }

}