"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 });
exports.TSLINT_VERSION = void 0;
const dependencies_1 = require("../../utility/dependencies");
const json_file_1 = require("../../utility/json-file");
exports.TSLINT_VERSION = '~6.1.0';
const TSLINT_CONFIG_PATH = '/tslint.json';
const RULES_TO_DELETE = ['no-use-before-declare', 'no-unused-variable'];
const RULES_TO_ADD = {
    align: {
        options: ['parameters', 'statements'],
    },
    'arrow-return-shorthand': true,
    curly: true,
    eofline: true,
    'import-spacing': true,
    indent: {
        options: ['spaces'],
    },
    'variable-name': {
        options: ['ban-keywords', 'check-format', 'allow-pascal-case'],
    },
    semicolon: { options: ['always'] },
    'space-before-function-paren': {
        options: {
            anonymous: 'never',
            asyncArrow: 'always',
            constructor: 'never',
            method: 'never',
            named: 'never',
        },
    },
    'typedef-whitespace': {
        options: [
            {
                'call-signature': 'nospace',
                'index-signature': 'nospace',
                parameter: 'nospace',
                'property-declaration': 'nospace',
                'variable-declaration': 'nospace',
            },
            {
                'call-signature': 'onespace',
                'index-signature': 'onespace',
                parameter: 'onespace',
                'property-declaration': 'onespace',
                'variable-declaration': 'onespace',
            },
        ],
    },
    whitespace: {
        options: [
            'check-branch',
            'check-decl',
            'check-operator',
            'check-separator',
            'check-type',
            'check-typecast',
        ],
    },
};
function default_1() {
    return (tree, context) => {
        const logger = context.logger;
        // Update tslint dependency
        const current = dependencies_1.getPackageJsonDependency(tree, 'tslint');
        if (!current) {
            logger.info('"tslint" in not a dependency of this workspace.');
            return;
        }
        if (current.version !== exports.TSLINT_VERSION) {
            dependencies_1.addPackageJsonDependency(tree, {
                type: current.type,
                name: 'tslint',
                version: exports.TSLINT_VERSION,
                overwrite: true,
            });
        }
        // Update tslint config.
        let json;
        try {
            json = new json_file_1.JSONFile(tree, TSLINT_CONFIG_PATH);
        }
        catch {
            const config = ['tslint.js', 'tslint.yaml'].find((c) => tree.exists(c));
            if (config) {
                logger.warn(`Expected a JSON configuration file but found "${config}".`);
            }
            else {
                logger.warn('Cannot find "tslint.json" configuration file.');
            }
            return;
        }
        // Remove old/deprecated rules.
        for (const rule of RULES_TO_DELETE) {
            json.remove(['rules', rule]);
        }
        // Add new rules only iif the configuration extends 'tslint:recommended'.
        // This is because some rules conflict with prettier or other tools.
        const extend = json.get(['extends']);
        if (extend !== 'tslint:recommended' ||
            (Array.isArray(extend) && extend.some((e) => e.value !== 'tslint:recommended'))) {
            logger.warn(`tslint configuration does not extend "tslint:recommended" or it extends multiple configurations.` +
                '\nSkipping rule changes as some rules might conflict.');
            return;
        }
        for (const [name, value] of Object.entries(RULES_TO_ADD)) {
            const ruleName = ['rules', name];
            if (json.get(ruleName) === undefined) {
                json.modify(ruleName, value);
            }
        }
    };
}
exports.default = default_1;