/*
 * Copyright © 2020 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 { SeedDrivenGeneratorParameters } from "@atomist/automation-client/lib/operations/generate/SeedDrivenGeneratorParameters";
import { doWithJson } from "@atomist/automation-client/lib/project/util/jsonUtils";
import { logger } from "@atomist/automation-client/lib/util/logger";
import { CodeTransform } from "../../../api/registration/CodeTransform";
import { NodeProjectCreationParameters } from "../generator/NodeProjectCreationParameters";
import { PackageJson } from "../util/PackageJson";
import { findAuthorName } from "./findAuthorName";

/**
 * Code transform to update identification fields of package.json and package-lock.json
 * @param project
 * @param context
 * @param params
 */
export const UpdatePackageJsonIdentification: CodeTransform<
    NodeProjectCreationParameters & SeedDrivenGeneratorParameters
> = async (project, context, params) => {
    const author = await findAuthorName(context.context, params.screenName).then(
        (authorName: string) => authorName || params.screenName,
        (err: Error) => {
            logger.warn("Cannot query for author name: %s", err.message);
            return params.screenName;
        },
    );

    const p = await doWithJson<PackageJson>(project, "package.json", pkg => {
        const repoUrl = params.target.repoRef.url;
        pkg.name = params.appName;
        pkg.description = params.target.description;
        pkg.version = params.version;
        pkg.author = {
            name: author,
        };
        pkg.repository = {
            type: "git",
            url: `${repoUrl}.git`,
        };
        pkg.homepage = `${repoUrl}#readme`;
        pkg.bugs = {
            url: `${repoUrl}/issues`,
        };
    });

    if (await p.hasFile("package-lock.json")) {
        await doWithJson<PackageJson>(p, "package-lock.json", pkg => {
            pkg.name = params.appName;
            pkg.version = params.version;
        });
    }
};