/*
 * Copyright © 2019 Atomist, 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.
 */

import { HandlerContext } from "@atomist/automation-client/lib/HandlerContext";
import { RepoRef } from "@atomist/automation-client/lib/operations/common/RepoId";
import { QueryNoCacheOptions } from "@atomist/automation-client/lib/spi/graph/GraphClient";
import { logger } from "@atomist/automation-client/lib/util/logger";
import {
    pushTest,
    PushTest,
} from "../PushTest";

// TODO once the ingester is defined elsewhere move this into a file and generate types
const DeployEnablementQuery = `
query DeployEnablementForRepo($owner: [String], $repo: [String]) {
  SdmDeployEnablement(owner: $owner, repo: $repo) {
    id
    state
    owner
    repo
    providerId
  }
}`;

/**
 * Is repo enabled for deployment
 * @param {PushListenerInvocation} pi
 */
export const IsDeployEnabled: PushTest = pushTest("Is Deploy Enabled", isDeployEnabled);

export async function isDeployEnabled(parameters: { context: HandlerContext, id: RepoRef }): Promise<boolean> {
    const {context, id} = parameters;
    try {
        const enablement = await context.graphClient.query<any, any>({
            query: DeployEnablementQuery,
            variables: {
                owner: [id.owner],
                repo: [id.repo],
            },
            options: QueryNoCacheOptions,
        });
        return enablement
            && enablement.SdmDeployEnablement
            && enablement.SdmDeployEnablement.length === 1
            && enablement.SdmDeployEnablement[0].state === "requested";
    } catch (e) {
        logger.error("Cannot determine whether deploy is enabled. Guessing `false`. " + e);
        logger.debug(e.stack);
        return false;
    }
}