/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.client.enrich;

import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.XContentParser;

public final class ExecutePolicyResponse {

    private static final ParseField TASK_FIELD = new ParseField("task");
    private static final ParseField STATUS_FIELD = new ParseField("status");

    private static final ConstructingObjectParser<ExecutePolicyResponse, Void> PARSER = new ConstructingObjectParser<>(
        "execute_policy_response",
        true,
        args -> new ExecutePolicyResponse((String) args[0], (ExecutionStatus) args[1])
    );

    static {
        PARSER.declareString(ConstructingObjectParser.optionalConstructorArg(), TASK_FIELD);
        PARSER.declareObject(ConstructingObjectParser.optionalConstructorArg(), ExecutionStatus.PARSER, STATUS_FIELD);
    }

    public static ExecutePolicyResponse fromXContent(XContentParser parser) {
        return PARSER.apply(parser, null);
    }

    private final String taskId;
    private final ExecutionStatus executionStatus;

    ExecutePolicyResponse(String taskId, ExecutionStatus executionStatus) {
        this.taskId = taskId;
        this.executionStatus = executionStatus;
    }

    public String getTaskId() {
        return taskId;
    }

    public ExecutionStatus getExecutionStatus() {
        return executionStatus;
    }

    public static final class ExecutionStatus {

        private static final ParseField PHASE_FIELD = new ParseField("phase");

        private static final ConstructingObjectParser<ExecutionStatus, Void> PARSER = new ConstructingObjectParser<>(
            "execution_status",
            true,
            args -> new ExecutionStatus((String) args[0])
        );

        static {
            PARSER.declareString(ConstructingObjectParser.constructorArg(), PHASE_FIELD);
        }

        private final String phase;

        ExecutionStatus(String phase) {
            this.phase = phase;
        }

        public String getPhase() {
            return phase;
        }
    }
}
