// Copyright 2021 Allterco Robotics EOOD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License 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.
//
// Shelly is a Trademark of Allterco Robotics

// ShellyPlus2 Cover device SetPosition helper for Domoticz MQTTAD control
// Domoticz rpc control JSON is malformed, this script will interpret it anyway

// original author: enesbcs
// enhanced by: Xavier82

// Extension for ShellyTeacher4Domo
// https://github.com/enesbcs/shellyteacher4domo

let CONFIG = {
  shelly_id: null,
};
Shelly.call("Shelly.GetDeviceInfo", {}, function (result) {
 if (result && result.id) {
  CONFIG.shelly_id = result.id;
  MQTT.subscribe(
    buildMQTTStateCmdTopics("rpc"),
    DecodeDomoticzFaultyJSON
  );
  console.log("Subscribed to RPC");
 } else {
  console.log("Failed to get Shelly device info:", result);
 }
});

/**
 * @param {string} topic
 */
function buildMQTTStateCmdTopics(topic) {
  let _t = topic || "";
  return CONFIG.shelly_id + "/" + _t;
}

/**
 * @param {string} topic
 * @param {string} message
 */
function DecodeDomoticzFaultyJSON(topic, message) {
  let trimmedMessage = message.trim();
  if (trimmedMessage) {
    if (trimmedMessage.indexOf("GoToPosition") !== -1){
     let req = JSON.parse(trimmedMessage);
     for (let r in req) {
       if (r.indexOf("GoToPosition") !== -1) { // Check if "GoToPosition" is present in the key
          SetCoverPosition(req[r]);
          break;
       }
     }
    }
  }
}

/**
 * @param {integer} position 0..100
 */
function SetCoverPosition(position) {
  Shelly.call("Cover.GoToPosition", {
    id: 0,
    pos: position,
  });
}