/**
 * ============LICENSE_START========================================================================
 * ONAP : ccsdk feature sdnr wt odlux
 * =================================================================================================
 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. 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. 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.
 * ============LICENSE_END==========================================================================
 */
import { XmlFileInfo, MediatorConfig, BusySymbol, MediatorConfigResponse, MediatorServerDevice } from "../models/mediatorServer";
import { IActionHandler } from "../../../../framework/src/flux/action";
import { SetMediatorServerVersion, SetMediatorServerInfo, SetAllMediatorServerConfigurations, SetMediatorServerBusy, SetMediatorServerSupportedDevices, SetMediatorServerReachable } from "../actions/mediatorServerActions";
import { SetMediatorBusyByName, UpdateMediatorConfig, AddMediatorConfig, RemoveMediatorConfig } from "../actions/mediatorConfigActions";

export type MediatorServerState = {
  busy: boolean;
  name: string | null;
  url: string | null;
  id: string | null;
  serverVersion: string | null;
  mediatorVersion: string | null;
  nexmls: XmlFileInfo[];
  configurations: MediatorConfigResponse[];
  supportedDevices: MediatorServerDevice[];
  isReachable: boolean;
}

const mediatorServerInit: MediatorServerState = {
  busy: false,
  name: null,
  url: null,
  id: null,
  serverVersion: null,
  mediatorVersion: null,
  nexmls: [],
  configurations: [],
  supportedDevices: [],
  isReachable: true
}

export const mediatorServerHandler: IActionHandler<MediatorServerState> = (state = mediatorServerInit, action) => {
  if (action instanceof SetMediatorServerBusy) {
    state = {
      ...state,
      busy: action.isBusy
    };
  } else if (action instanceof SetMediatorServerInfo) {
    state = {
      ...state,
      name: action.name,
      url: action.url,
      id: action.id,
    };
  } else if (action instanceof SetMediatorServerVersion) {
    state = {
      ...state,
      serverVersion: action.versionInfo && action.versionInfo.server,
      mediatorVersion: action.versionInfo && action.versionInfo.mediator,
      nexmls: action.versionInfo && [...action.versionInfo.nexmls] || [],
    };
  } else if (action instanceof SetAllMediatorServerConfigurations) {
    state = {
      ...state,
      configurations: action.allConfigurations && action.allConfigurations.map(config => ({ ...config, busy: false })) || [],
    };
  } else if (action instanceof SetMediatorServerSupportedDevices) {
    state = {
      ...state,
      supportedDevices: action.devices || [],
    };
  } else if (action instanceof SetMediatorBusyByName) {
    const index = state.configurations.findIndex(config => config.Name === action.name);
    if (index > -1) state = {
      ...state,
      configurations: [
        ...state.configurations.slice(0, index),
        { ...state.configurations[index], [BusySymbol]: action.isBusy },
        ...state.configurations.slice(index + 1)
      ]
    };
  } else if (action instanceof AddMediatorConfig) {
    state = {
      ...state,
      configurations: [
        ...state.configurations,
        action.mediatorConfig
      ]
    };
  } else if (action instanceof UpdateMediatorConfig) {
    const index = state.configurations.findIndex(config => config.Name === action.name);
    if (index > -1) state = {
      ...state,
      configurations: [
        ...state.configurations.slice(0, index),
        { ...action.mediatorConfig, [BusySymbol]: state.configurations[index][BusySymbol] },
        ...state.configurations.slice(index + 1)
      ]
    };
  } else if (action instanceof RemoveMediatorConfig) {
    const index = state.configurations.findIndex(config => config.Name === action.name);
    if (index > -1) state = {
      ...state,
      configurations: [
        ...state.configurations.slice(0, index),
        ...state.configurations.slice(index + 1)
      ]
    };
  } else if( action instanceof SetMediatorServerReachable){
    state = {...state, isReachable: action.isReachable}
  }
  return state;
}