/*
 * Copyright 2019-2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
 * the License. A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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 { AuthErrorMessages, AuthErrorTypes } from './types';
import { ConsoleLogger as Logger } from '@aws-amplify/core';

const logger = new Logger('AuthError');
const DEFAULT_MSG = 'Authentication Error';

export class AuthError extends Error {
    public log: string;
    constructor(type: AuthErrorTypes) {
        const { message, log } = authErrorMessages[type];
        super(message);

        // Hack for making the custom error class work when transpiled to es5
        // TODO: Delete the following 2 lines after we change the build target to >= es2015
        this.constructor = AuthError;
        Object.setPrototypeOf(this, AuthError.prototype);

        this.name = 'AuthError';
        this.log = log || message;

        logger.error(this.log);
    }
}

export class NoUserPoolError extends AuthError {
    constructor(type: AuthErrorTypes) {
        super(type);

        // Hack for making the custom error class work when transpiled to es5
        // TODO: Delete the following 2 lines after we change the build target to >= es2015
        this.constructor = NoUserPoolError;
        Object.setPrototypeOf(this, NoUserPoolError.prototype);

        this.name = 'NoUserPoolError';
    }
}

export const authErrorMessages: AuthErrorMessages = {
    noConfig: {
        message: DEFAULT_MSG,
        log: `
            Error: Amplify has not been configured correctly.
            This error is typically caused by one of the following scenarios:

            1. Make sure you're passing the awsconfig object to Amplify.configure() in your app's entry point
                See https://aws-amplify.github.io/docs/js/authentication#configure-your-app for more information
            
            2. There might be multiple conflicting versions of aws-amplify or amplify packages in your node_modules.
                Try deleting your node_modules folder and reinstalling the dependencies with \`yarn install\`
        `
    },
    missingAuthConfig: {
        message: DEFAULT_MSG,
        log: `
            Error: Amplify has not been configured correctly. 
            The configuration object is missing required auth properties. 
            Did you run \`amplify push\` after adding auth via \`amplify add auth\`?
            See https://aws-amplify.github.io/docs/js/authentication#amplify-project-setup for more information
        `
    },
    emptyUsername: {
        message: 'Username cannot be empty'
    },
    // TODO: should include a list of valid sign-in types
    invalidUsername: {
        message:
            'The username should either be a string or one of the sign in types'
    },
    emptyPassword: {
        message: 'Password cannot be empty'
    },
    emptyCode: {
        message: 'Confirmation code cannot be empty'
    },
    signUpError: {
        message: 'Error creating account',
        log: 'The first parameter should either be non-null string or object'
    },
    noMFA: {
        message: 'No valid MFA method provided'
    },
    invalidMFA: {
        message: 'Invalid MFA type'
    },
    emptyChallengeResponse: {
        message: 'Challenge response cannot be empty'
    },
    noUserSession: {
        message: 'Failed to get the session because the user is empty'
    },
    default: {
        message: DEFAULT_MSG
    }
};