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// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 org.apache.doris.common.proc;

import org.apache.doris.catalog.Database;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.alter.SchemaChangeHandler;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;

import java.util.ArrayList;
import org.apache.doris.alter.SchemaChangeHandler;
import org.apache.doris.catalog.Database;
import org.apache.doris.common.AnalysisException;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;

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

public class SchemaChangeProcNode implements ProcNodeInterface {
    public static final ImmutableList<String> TITLE_NAMES = new ImmutableList.Builder<String>()
            .add("JobId").add("TableName").add("TransactionId").add("CreateTime").add("FinishTime")
            .add("IndexName").add("IndexState").add("State").add("Msg")
            .add("Progress")
            .build();

    private SchemaChangeHandler schemaChangeHandler;
    private Database db;

    public SchemaChangeProcNode(SchemaChangeHandler schemaChangeHandler, Database db) {
        this.schemaChangeHandler = schemaChangeHandler;
        this.db = db;
    }

    @Override
    public ProcResult fetchResult() throws AnalysisException {
        Preconditions.checkNotNull(db);
        Preconditions.checkNotNull(schemaChangeHandler);

        BaseProcResult result = new BaseProcResult();
        result.setNames(TITLE_NAMES);

        List<List<Comparable>> schemaChangeJobInfos = schemaChangeHandler.getAlterJobInfosByDb(db);
        for (List<Comparable> infoStr : schemaChangeJobInfos) {
            List<String> oneInfo = new ArrayList<String>(TITLE_NAMES.size());
            for (Comparable element : infoStr) {
                oneInfo.add(element.toString());
            }
            result.addRow(oneInfo);
        }
        return result;
    }

}
