"use strict";
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("@angular-devkit/core");
const json_file_1 = require("../../utility/json-file");
function* visitExtendedJsonFiles(directory) {
    for (const path of directory.subfiles) {
        if (!path.endsWith('.json')) {
            continue;
        }
        const entry = directory.file(path);
        const content = entry === null || entry === void 0 ? void 0 : entry.content.toString();
        if (content === null || content === void 0 ? void 0 : content.includes('tsconfig.base.json')) {
            yield core_1.join(directory.path, path);
        }
    }
    for (const path of directory.subdirs) {
        if (path === 'node_modules' || path.startsWith('.')) {
            continue;
        }
        yield* visitExtendedJsonFiles(directory.dir(path));
    }
}
function default_1() {
    return (host, context) => {
        const logger = context.logger;
        const tsConfigExists = host.exists('tsconfig.json');
        if (tsConfigExists) {
            const files = new json_file_1.JSONFile(host, 'tsconfig.json').get(['files']);
            if (!(Array.isArray(files) && files.length === 0)) {
                logger.info('Migration has already been executed.');
                return;
            }
        }
        if (host.exists('tsconfig.base.json')) {
            if (tsConfigExists) {
                host.overwrite('tsconfig.json', host.read('tsconfig.base.json') || '');
                host.delete('tsconfig.base.json');
            }
            else {
                host.rename('tsconfig.base.json', 'tsconfig.json');
            }
        }
        // Iterate over all tsconfig files and change the extends from 'tsconfig.base.json' to 'tsconfig.json'.
        const extendsJsonPath = ['extends'];
        for (const path of visitExtendedJsonFiles(host.root)) {
            try {
                const tsConfigDir = core_1.dirname(core_1.normalize(path));
                const tsConfigJson = new json_file_1.JSONFile(host, path);
                const extendsValue = tsConfigJson.get(extendsJsonPath);
                if (typeof extendsValue === 'string' &&
                    '/tsconfig.base.json' === core_1.resolve(tsConfigDir, core_1.normalize(extendsValue))) {
                    // tsconfig extends the workspace tsconfig path.
                    tsConfigJson.modify(extendsJsonPath, extendsValue.replace('tsconfig.base.json', 'tsconfig.json'));
                }
            }
            catch (error) {
                logger.warn(`${error.message || error}\n` +
                    'If this is a TypeScript configuration file you will need to update the "extends" value manually.');
                continue;
            }
        }
    };
}
exports.default = default_1;