(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('buffer'), require('rxjs'), require('@iotize/common/debug'), require('@iotize/common/byte-converter'), require('@iotize/common/error')) :
    typeof define === 'function' && define.amd ? define('@iotize/tap/relay/impl', ['exports', 'buffer', 'rxjs', '@iotize/common/debug', '@iotize/common/byte-converter', '@iotize/common/error'], factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.iotize = global.iotize || {}, global.iotize.tap = global.iotize.tap || {}, global.iotize.tap.relay = global.iotize.tap.relay || {}, global.iotize.tap.relay.impl = {}), global.buffer, global.rxjs, global.debug$1, global.byteConverter, global.error));
})(this, (function (exports, buffer, rxjs, debug$1, byteConverter, error) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
    ***************************************************************************** */
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    var prefix = '@iotize/tap/relay';
    var debug = debug$1.createDebugger(prefix);

    var __awaiter$1 = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
        function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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            function fulfilled(value) { try {
                step(generator.next(value));
            }
            catch (e) {
                reject(e);
            } }
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                step(generator["throw"](value));
            }
            catch (e) {
                reject(e);
            } }
            function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
            step((generator = generator.apply(thisArg, _arguments || [])).next());
        });
    };
    var TAG$1 = 'Relay';
    var RelayServer = /** @class */ (function () {
        function RelayServer(_server, params) {
            this._server = _server;
            this._params = params || {
                port: 2000,
            };
            this._clients = [];
        }
        Object.defineProperty(RelayServer.prototype, "server", {
            get: function () {
                return this._server;
            },
            enumerable: false,
            configurable: true
        });
        RelayServer.prototype.addClient = function (socket) {
            this._clients.push(socket);
            return this;
        };
        RelayServer.prototype.removeClient = function (client) {
            var index = this._clients.indexOf(client);
            if (index >= 0) {
                client.close();
                debug(TAG$1, "Removing client " + client.getClientName() + "...");
                delete this._clients[index];
            }
            return this;
        };
        RelayServer.prototype.start = function () {
            var _this = this;
            this._subscription = new rxjs.Subject();
            this._server
                .connections()
                .subscribe(function (socket) { return __awaiter$1(_this, void 0, void 0, function () {
                var clientName;
                var _this = this;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0:
                            clientName = socket.getClientName();
                            debug(TAG$1, "[NEW_CLIENT] " + clientName);
                            return [4 /*yield*/, socket.ready()];
                        case 1:
                            _a.sent();
                            debug(TAG$1, "[NEW_CLIENT] " + clientName + " IS READY");
                            // Put this new client in the list
                            this.addClient(socket);
                            socket.events().subscribe({
                                next: function (event) {
                                    switch (event.type) {
                                        case 'data':
                                            var messageString = _this.messageToLog(event.payload);
                                            debug(TAG$1, "[MESSAGE] " + messageString + " from " + clientName);
                                            _this.broadcastMessage(event.payload, socket);
                                            break;
                                        case 'error':
                                            debug(TAG$1, "[ERROR] " + clientName + " ", event.payload);
                                            // Do we have to remove client every time ?
                                            _this.removeClient(socket);
                                            break;
                                        case 'end':
                                            debug(TAG$1, "[CLIENTEND] " + clientName);
                                            _this.removeClient(socket);
                                            break;
                                    }
                                },
                            });
                            return [2 /*return*/];
                    }
                });
            }); });
            return this._server.listen(this._params);
        };
        RelayServer.prototype.stop = function () {
            return __awaiter$1(this, void 0, void 0, function () {
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0:
                            this._clients.forEach(function (client) {
                                client.close();
                            });
                            if (!this._server) return [3 /*break*/, 2];
                            return [4 /*yield*/, this._server.stop()];
                        case 1:
                            _a.sent();
                            _a.label = 2;
                        case 2:
                            if (this._subscription) {
                                this._subscription.complete();
                            }
                            return [2 /*return*/];
                    }
                });
            });
        };
        RelayServer.prototype.broadcastMessage = function (message, sender) {
            var messageString = this.messageToLog(message);
            debug(TAG$1, "[BROADCAST] " + messageString + " from " + sender.getClientName());
            if (this._clients.length == 0) {
                debug(TAG$1, 'There is no client yet');
                return;
            }
            // Send a message to all clients
            this._clients.forEach(function (client) {
                // Don't want to send it to sender
                try {
                    if (client === sender) {
                        debug(TAG$1, "\t- Skip sender " + client.getClientName());
                        return;
                    }
                    if (client.isWritable()) {
                        debug(TAG$1, "\t- Sent to " + client.getClientName());
                        client.write(message);
                    }
                    else {
                        debug(TAG$1, "Client " + client.getClientName() + " is not writable. Cannot send to it");
                    }
                }
                catch (err) {
                    debug("Cannot broadcast to " + client.getClientName(), err);
                }
            });
        };
        RelayServer.prototype.messageToLog = function (message) {
            if (typeof message === 'string') {
                return "\"" + message + "\"";
            }
            else if (message instanceof buffer.Buffer) {
                return byteConverter.bufferToHexString(message);
            }
            else {
                return message;
            }
        };
        return RelayServer;
    }());

    var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
        function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
        return new (P || (P = Promise))(function (resolve, reject) {
            function fulfilled(value) { try {
                step(generator.next(value));
            }
            catch (e) {
                reject(e);
            } }
            function rejected(value) { try {
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            catch (e) {
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            step((generator = generator.apply(thisArg, _arguments || [])).next());
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    };
    var TAG = 'Relay';
    exports.ComRelayError = /** @class */ (function (_super) {
        __extends(ComRelayError, _super);
        function ComRelayError(code, msg) {
            return _super.call(this, msg, code) || this;
        }
        ComRelayError.illegalArgument = function (message) {
            return new ComRelayError(ComRelayError.Code.IllegalArgmentError, message);
        };
        return ComRelayError;
    }(error.CodeError));
    (function (ComRelayError) {
        var Code;
        (function (Code) {
            Code["IllegalArgmentError"] = "IllegalArgmentError";
        })(Code = ComRelayError.Code || (ComRelayError.Code = {}));
    })(exports.ComRelayError || (exports.ComRelayError = {}));
    /**
     * This is an experimental feature.
     *
     * @experimental
     */
    var ComRelay = /** @class */ (function () {
        // private IRelayCallback mCallback;
        // public final RelayServiceInfoModel mRelayInfo;
        // private DefaultSocketServer mSocketServer;
        // private WebSocketServer mWebSocketServer;
        /**
         * @param sourceProtocol protocol that will received commands
         * @param targetProtocol protocol on wich commmand will be sent
         */
        function ComRelay(sourceProtocol, targetProtocol) {
            if (sourceProtocol) {
                this.setSourceProtocol(sourceProtocol);
            }
            if (targetProtocol) {
                this.setTargetProtocol(targetProtocol);
            }
        }
        Object.defineProperty(ComRelay.prototype, "sourceProtocol", {
            get: function () {
                if (!this.mSourceProtocol) {
                    throw exports.ComRelayError.illegalArgument('Missing source protocol');
                }
                return this.mSourceProtocol;
            },
            enumerable: false,
            configurable: true
        });
        Object.defineProperty(ComRelay.prototype, "targetProtocol", {
            get: function () {
                if (!this.mTargetProtocol) {
                    throw exports.ComRelayError.illegalArgument('Missing target protocol');
                }
                return this.mTargetProtocol;
            },
            enumerable: false,
            configurable: true
        });
        ComRelay.prototype.setSourceProtocol = function (protocol) {
            if (this.mSourceProtocol) {
                this.removeSourceProtocol();
            }
            this.mSourceProtocol = protocol;
            return this;
        };
        ComRelay.prototype.removeSourceProtocol = function () {
            if (this._sourceProtocolSubscription) {
                this._sourceProtocolSubscription.unsubscribe();
                this._sourceProtocolSubscription = undefined;
            }
            this.mSourceProtocol = undefined;
            return this;
        };
        ComRelay.prototype.setTargetProtocol = function (protocol) {
            this.mTargetProtocol = protocol;
            return this;
        };
        ComRelay.prototype.start = function (options) {
            return __awaiter(this, void 0, void 0, function () {
                var _this = this;
                return __generator(this, function (_e) {
                    return [2 /*return*/, promiseTimout(options ? options.timeout || -1 : -1, function (resolve, reject) { return __awaiter(_this, void 0, void 0, function () {
                            var ex_1;
                            return __generator(this, function (_e) {
                                switch (_e.label) {
                                    case 0:
                                        _e.trys.push([0, 5, , 6]);
                                        if (!!this.sourceProtocol.isConnected()) return [3 /*break*/, 2];
                                        debug(TAG, 'Connecting to source protocol...');
                                        return [4 /*yield*/, this.sourceProtocol.connect().toPromise()];
                                    case 1:
                                        _e.sent();
                                        _e.label = 2;
                                    case 2:
                                        if (!!this.targetProtocol.isConnected()) return [3 /*break*/, 4];
                                        debug(TAG, 'Connecting to target protocol...');
                                        return [4 /*yield*/, this.targetProtocol.connect().toPromise()];
                                    case 3:
                                        _e.sent();
                                        _e.label = 4;
                                    case 4:
                                        debug(TAG, 'Source/Target are now connected. Listening to messages...');
                                        // We need to reconnect
                                        this.listenToDataStream();
                                        resolve();
                                        return [3 /*break*/, 6];
                                    case 5:
                                        ex_1 = _e.sent();
                                        reject(ex_1);
                                        return [3 /*break*/, 6];
                                    case 6: return [2 /*return*/];
                                }
                            });
                        }); })];
                });
            });
        };
        /**
         * Stop relay and disconnect target and source protocol according to given options
         * @param options
         */
        ComRelay.prototype.stop = function (options) {
            var _a, _b, _c, _d;
            if (!(options === null || options === void 0 ? void 0 : options.keepTargetProtocolConnected) &&
                ((_a = this.mTargetProtocol) === null || _a === void 0 ? void 0 : _a.isConnected())) {
                (_b = this.mTargetProtocol) === null || _b === void 0 ? void 0 : _b.disconnect();
            }
            if (!(options === null || options === void 0 ? void 0 : options.keepSourceProtocolConnected) &&
                ((_c = this.mSourceProtocol) === null || _c === void 0 ? void 0 : _c.isConnected())) {
                (_d = this.mSourceProtocol) === null || _d === void 0 ? void 0 : _d.disconnect();
            }
        };
        ComRelay.prototype.listenToDataStream = function () {
            var _this = this;
            // if (!this.mSourceProtocol!.isConnected()){
            //     await this.mSourceProtocol!.connect();
            // }
            return new Promise(function (resolve, reject) {
                if (!_this.mSourceProtocol) {
                    return reject(exports.ComRelayError.illegalArgument("Missing source protocol"));
                }
                _this._sourceProtocolSubscription = _this.mSourceProtocol
                    .receiveStream()
                    .subscribe({
                    next: function (data) {
                        if (!data) {
                            debug(TAG, 'Received null event...');
                            return;
                        }
                        if (!_this.mTargetProtocol) {
                            debug(TAG, 'Target protocol is null. Cannot redirect message to it');
                            return;
                        }
                        try {
                            debug(TAG, "Received new message", byteConverter.bufferToHexString(data));
                            _this.mTargetProtocol
                                .send(data)
                                .toPromise()
                                .then(function (response) {
                                debug(TAG, "Target protocol responded with: ", byteConverter.bufferToHexString(response));
                                return _this.sourceProtocol.write(response);
                            })
                                .then(function () {
                                debug(TAG, "Successfully sent response!");
                            })
                                .catch(function (err) {
                                debug(TAG, "Cannot transfer response to source protocol: " + err + " JSON=" + JSON.stringify(err), err);
                            });
                        }
                        catch (err) {
                            debug(TAG, "Source cannot transfer data to target due to error: " + err, err);
                        }
                    },
                    error: function (err) {
                        debug(TAG, "Error occured " + err);
                    },
                    complete: function () {
                        resolve();
                    },
                });
            });
        };
        ComRelay.prototype.onStop = function () {
            // TODO cleanup
            return this;
        };
        return ComRelay;
    }());
    function promiseTimout(ms, callback) {
        return new Promise(function (resolve, reject) {
            debug(TAG, "promiseTimout start with " + ms + " milliseconds");
            // Set up the real work
            callback(resolve, reject);
            // Set up the timeout
            if (ms >= 0) {
                setTimeout(function () {
                    reject('Promise timed out after ' + ms + ' ms');
                }, ms);
            }
        });
    }

    /**
     * Generated bundle index. Do not edit.
     */

    exports.ComRelay = ComRelay;
    exports.RelayServer = RelayServer;

    Object.defineProperty(exports, '__esModule', { value: true });

}));
//# sourceMappingURL=iotize-tap-relay-impl.umd.js.map
