frontend/smart-hut/src/components/dashboard/devices/Switch.js

/**
 * Users can add on-off switches. A on-off switch can turn on (or off) lights.
 * If a light has an intensity level, when it gets switched back on, it gets the last available
 * intensity level that was set by the user (or 100% if no such level exists).
 * The user can change the state of a switch through the SmartHut interface.
 */

import React, {Component} from 'react';
import {StyledDiv} from "./styleComponents";
import Settings from "./DeviceSettings";
import {Image} from "semantic-ui-react";
import {imageStyle, nameStyle} from "./SwitchStyle";
import { call } from '../../../client_server';

export default class Switch extends Component {
  constructor(props){
    super(props);
    this.state = {
      turnedOn: false,
      pointingLights : []
    };
    this.iconOn = "/img/switchOn.svg";
    this.iconOff = "/img/switchOff.svg";
  }

  onClickDevice = () => {
    this.props.device.on = !this.state.turnedOn;
    let state = "";
    if(this.props.device.on) {
      state = "ON"
    } else {
      state = "OFF"
    }
    let data = {
      "type" : state,
      "id" : this.props.device.id
    }
    call.deviceUpdate(data, 'switch/operate')
      .then(res => {
        if (res.status === 200 ){
          this.setState((prevState) => ({turnedOn: !prevState.turnedOn}));
        }
      })
  };

  getIcon = () => {
    if(this.state.turnedOn){
      return this.iconOn;
    }
    return this.iconOff;
  };

  componentDidMount() {
    this.setState({
      turnedOn: this.props.device.on
    })
  }

  render(){
    return (
      <StyledDiv onClick={this.props.edit.mode ? () => {} : this.onClickDevice}>
        <Settings
          deviceId={this.props.device.id}
          edit={this.props.edit}
          onChangeData={(id, newSettings) => this.props.onChangeData(id, newSettings)}/>
        <Image src={this.getIcon()} style={imageStyle}/>
        <h5 style={nameStyle}>{this.props.device.name}</h5>
      </StyledDiv>
    )
  }
}