@aws-amplify/interactions/lib-esm/Providers/AWSLexProvider.js

/*
 * Copyright 2017-2018 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.
 */
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import { AbstractInteractionsProvider } from './InteractionsProvider';
import { LexRuntimeServiceClient, PostTextCommand, PostContentCommand, } from '@aws-sdk/client-lex-runtime-service';
import { ConsoleLogger as Logger, Credentials, getAmplifyUserAgent, } from '@aws-amplify/core';
import { convert } from './AWSLexProviderHelper/convert';
var logger = new Logger('AWSLexProvider');
var AWSLexProvider = /** @class */ (function (_super) {
    __extends(AWSLexProvider, _super);
    function AWSLexProvider(options) {
        if (options === void 0) { options = {}; }
        var _this = _super.call(this, options) || this;
        _this._botsCompleteCallback = {};
        return _this;
    }
    AWSLexProvider.prototype.getProviderName = function () {
        return 'AWSLexProvider';
    };
    AWSLexProvider.prototype.reportBotStatus = function (data, botname) {
        var _this = this;
        // Check if state is fulfilled to resolve onFullfilment promise
        logger.debug('postContent state', data.dialogState);
        if (data.dialogState === 'ReadyForFulfillment' ||
            data.dialogState === 'Fulfilled') {
            if (typeof this._botsCompleteCallback[botname] === 'function') {
                setTimeout(function () {
                    return _this._botsCompleteCallback[botname](null, { slots: data.slots });
                }, 0);
            }
            if (this._config &&
                typeof this._config[botname].onComplete === 'function') {
                setTimeout(function () { return _this._config[botname].onComplete(null, { slots: data.slots }); }, 0);
            }
        }
        if (data.dialogState === 'Failed') {
            if (typeof this._botsCompleteCallback[botname] === 'function') {
                setTimeout(function () { return _this._botsCompleteCallback[botname]('Bot conversation failed'); }, 0);
            }
            if (this._config &&
                typeof this._config[botname].onComplete === 'function') {
                setTimeout(function () { return _this._config[botname].onComplete('Bot conversation failed'); }, 0);
            }
        }
    };
    AWSLexProvider.prototype.sendMessage = function (botname, message) {
        return __awaiter(this, void 0, void 0, function () {
            var credentials, params, postTextCommand, data, err_1, content, messageType, postContentCommand, data, audioArray, err_2;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!this._config[botname]) {
                            return [2 /*return*/, Promise.reject('Bot ' + botname + ' does not exist')];
                        }
                        return [4 /*yield*/, Credentials.get()];
                    case 1:
                        credentials = _a.sent();
                        if (!credentials) {
                            return [2 /*return*/, Promise.reject('No credentials')];
                        }
                        this.lexRuntimeServiceClient = new LexRuntimeServiceClient({
                            region: this._config[botname].region,
                            credentials: credentials,
                            customUserAgent: getAmplifyUserAgent(),
                        });
                        if (!(typeof message === 'string')) return [3 /*break*/, 6];
                        params = {
                            botAlias: this._config[botname].alias,
                            botName: botname,
                            inputText: message,
                            userId: credentials.identityId,
                        };
                        logger.debug('postText to lex', message);
                        _a.label = 2;
                    case 2:
                        _a.trys.push([2, 4, , 5]);
                        postTextCommand = new PostTextCommand(params);
                        return [4 /*yield*/, this.lexRuntimeServiceClient.send(postTextCommand)];
                    case 3:
                        data = _a.sent();
                        this.reportBotStatus(data, botname);
                        return [2 /*return*/, data];
                    case 4:
                        err_1 = _a.sent();
                        return [2 /*return*/, Promise.reject(err_1)];
                    case 5: return [3 /*break*/, 11];
                    case 6:
                        content = message.content, messageType = message.options.messageType;
                        if (messageType === 'voice') {
                            params = {
                                botAlias: this._config[botname].alias,
                                botName: botname,
                                contentType: 'audio/x-l16; sample-rate=16000',
                                inputStream: content,
                                userId: credentials.identityId,
                                accept: 'audio/mpeg',
                            };
                        }
                        else {
                            params = {
                                botAlias: this._config[botname].alias,
                                botName: botname,
                                contentType: 'text/plain; charset=utf-8',
                                inputStream: content,
                                userId: credentials.identityId,
                                accept: 'audio/mpeg',
                            };
                        }
                        logger.debug('postContent to lex', message);
                        _a.label = 7;
                    case 7:
                        _a.trys.push([7, 10, , 11]);
                        postContentCommand = new PostContentCommand(params);
                        return [4 /*yield*/, this.lexRuntimeServiceClient.send(postContentCommand)];
                    case 8:
                        data = _a.sent();
                        return [4 /*yield*/, convert(data.audioStream)];
                    case 9:
                        audioArray = _a.sent();
                        this.reportBotStatus(data, botname);
                        return [2 /*return*/, __assign(__assign({}, data), { audioStream: audioArray })];
                    case 10:
                        err_2 = _a.sent();
                        return [2 /*return*/, Promise.reject(err_2)];
                    case 11: return [2 /*return*/];
                }
            });
        });
    };
    AWSLexProvider.prototype.onComplete = function (botname, callback) {
        if (!this._config[botname]) {
            throw new ErrorEvent('Bot ' + botname + ' does not exist');
        }
        this._botsCompleteCallback[botname] = callback;
    };
    return AWSLexProvider;
}(AbstractInteractionsProvider));
export { AWSLexProvider };
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