/*************************GO-LICENSE-START*********************************
 * Copyright 2014 ThoughtWorks, 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.
 *************************GO-LICENSE-END***********************************/

package com.thoughtworks.go.presentation.pipelinehistory;

import com.thoughtworks.go.domain.BaseCollection;
import com.thoughtworks.go.domain.StageContainer;

import java.util.Date;

public class StageInstanceModels extends BaseCollection<StageInstanceModel> implements StageContainer {

    public Date getScheduledDate() {
        Date earliestScheduledDate = null;
        for (StageInstanceModel stage : this) {
            if (!stage.isScheduled()) {
                continue;
            }
            Date stageDate = stage.getScheduledDate();
            if (earliestScheduledDate == null || stageDate.before(earliestScheduledDate)) {
                earliestScheduledDate = stageDate;
            }
        }
        return earliestScheduledDate;
    }

    @Override public boolean add(StageInstanceModel stageInstanceModel) {
        return super.add(stageInstanceModel);    //To change body of overridden methods use File | Settings | File Templates.
    }

    public boolean hasStage(String stageName) {
        return byName(stageName) != null;
    }

    public String nextStageName(String stageName) {
        int index = indexOf(byName(stageName));
        if (index > -1 && index < size() - 1) {
            return get(index + 1).getName();
        }
        return null;
    }

    public StageInstanceModel byName(String name) {
        for (StageInstanceModel stage : this) {
            if (stage.getName().equals(name)) {
                return stage;
            }
        }
        return null;
    }

    public Boolean isLatestStageUnsuccessful() {
        return latestStage().hasUnsuccessfullyCompleted();
    }

    public StageInstanceModel latestStage() {
        if (size() == 0) {
            return null;
        }
        StageInstanceModel latest = first();
        for (int i = 1; i < size(); i++) {
            StageInstanceModel current = get(i);
            if (!(current instanceof NullStageHistoryItem) && current.getScheduledDate().after(latest.getScheduledDate())) {
                latest = current;
            }
        }
        return latest;
    }

    public Boolean isLatestStageSuccessful() {
        return latestStage().hasPassed();
    }

    /**
     *
     * @deprecated use add method. This is a test helper
     */
    public void addStage(String name, JobHistory history) {
        add(new StageInstanceModel(name, "1", history));
    }

    public StageInstanceModels addFutureStage(String name, boolean isAutoApproved) {
        add(new NullStageHistoryItem(name, isAutoApproved));
        return this;
    }

    public boolean isLatestStage(StageInstanceModel stage) {
        return latestStage().equals(stage);
    }
}