/*************************GO-LICENSE-START*********************************
 * Copyright 2016 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.config.update;

import com.thoughtworks.go.config.*;
import com.thoughtworks.go.config.commands.EntityConfigUpdateCommand;
import com.thoughtworks.go.i18n.Localizable;
import com.thoughtworks.go.i18n.LocalizedMessage;
import com.thoughtworks.go.server.domain.Username;
import com.thoughtworks.go.server.service.GoConfigService;
import com.thoughtworks.go.server.service.result.HttpLocalizedOperationResult;
import com.thoughtworks.go.serverhealth.HealthStateType;

public class DeleteEnvironmentCommand extends EnvironmentCommand implements EntityConfigUpdateCommand<EnvironmentConfig> {

    private final GoConfigService goConfigService;
    private final EnvironmentConfig environmentConfig;
    private final Username username;
    private final HttpLocalizedOperationResult result;

    public DeleteEnvironmentCommand(GoConfigService goConfigService, EnvironmentConfig environmentConfig, Username username, Localizable.CurryableLocalizable actionFailed, HttpLocalizedOperationResult result) {
        super(actionFailed, environmentConfig, result);
        this.goConfigService = goConfigService;
        this.environmentConfig = environmentConfig;
        this.username = username;
        this.result = result;
    }

    @Override
    public void update(CruiseConfig preprocessedConfig) throws Exception {
        preprocessedConfig.getEnvironments().remove(environmentConfig);
    }

    @Override
    public boolean isValid(CruiseConfig preprocessedConfig) {
        return true;
    }

    @Override
    public void clearErrors() {
        BasicCruiseConfig.clearErrors(environmentConfig);
    }

    @Override
    public boolean canContinue(CruiseConfig cruiseConfig) {
        if (!goConfigService.isAdministrator(username.getUsername())) {
            result.unauthorized(LocalizedMessage.string("NO_PERMISSION_TO_DELETE_ENVIRONMENT", environmentConfig.name().toString(), username.getDisplayName()), HealthStateType.unauthorised());
            return false;
        }
        return true;
    }
}