ha-frontend/panels/dev-service/ha-panel-dev-service.html

<link rel='import' href='../../bower_components/polymer/polymer.html'>

<link rel='import' href='../../bower_components/paper-button/paper-button.html'>
<link rel='import' href='../../bower_components/paper-input/paper-textarea.html'>

<link rel='import' href='../../bower_components/app-layout/app-header-layout/app-header-layout.html'>
<link rel='import' href='../../bower_components/app-layout/app-header/app-header.html'>
<link rel='import' href='../../bower_components/app-layout/app-toolbar/app-toolbar.html'>
<link rel="import" href="../../bower_components/app-storage/app-localstorage/app-localstorage-document.html">

<link rel="import" href="../../bower_components/vaadin-combo-box/vaadin-combo-box.html">

<link rel='import' href='../../src/components/ha-menu-button.html'>
<link rel='import' href='../../src/resources/ha-style.html'>

<dom-module id='ha-panel-dev-service'>
  <template>
    <style include='ha-style'>
      :host {
        background-color: white;
        -ms-user-select: initial;
        -webkit-user-select: initial;
        -moz-user-select: initial;
      }

      .content {
        padding: 16px;
      }

      .ha-form {
        margin-right: 16px;
        max-width: 500px;
      }

      .description {
        margin-top: 24px;
        white-space: pre-wrap;
      }

      .header {
        @apply(--paper-font-title);
      }

      .attributes th {
        text-align: left;
      }

      .attributes tr {
        vertical-align: top;
      }

      .attributes tr:nth-child(even) {
        background-color: #eee;
      }

      .attributes td:nth-child(3) {
        white-space: pre-wrap;
        word-break: break-word;
      }

      pre {
        margin: 0;
      }
    </style>

    <app-header-layout has-scrolling-region>
      <app-header fixed>
        <app-toolbar>
          <ha-menu-button narrow='[[narrow]]' show-menu='[[showMenu]]'></ha-menu-button>
          <div main-title>Services</div>
        </app-toolbar>
      </app-header>

      <app-localstorage-document
        key='panel-dev-service-state-domain'
        data='{{domain}}'>
      </app-localstorage-document>
      <app-localstorage-document
        key='panel-dev-service-state-service'
        data='{{service}}'>
      </app-localstorage-document>
      <app-localstorage-document
        key='panel-dev-service-state-servicedata'
        data='{{serviceData}}'>
      </app-localstorage-document>

      <div class='content'>
        <p>
          Call a service from a component.

        </p>

        <div class='ha-form'>
          <vaadin-combo-box label='Domain' items='[[computeDomains(serviceDomains)]]' value='{{domain}}'></vaadin-combo-box>
          <vaadin-combo-box label='Service' items='[[computeServices(serviceDomains, domain)]]' value='{{service}}'></vaadin-combo-box>
          <paper-textarea label='Service Data (JSON, optional)' value='{{serviceData}}'></paper-textarea>
          <paper-button on-tap='callService' raised>Call Service</paper-button>
        </div>

        <template is='dom-if' if='[[!domain]]'>
          <h1>Select a domain and service to see the description</h1>
        </template>

        <template is='dom-if' if='[[domain]]'>
          <template is='dom-if' if='[[!service]]'>
            <h1>Select a service to see the description</h1>
          </template>
        </template>

        <template is='dom-if' if='[[domain]]'>
          <template is='dom-if' if='[[service]]'>
            <template is='dom-if' if='[[!_attributes.length]]'>
              <h1>No description is available</h1>
            </template>
            <template is='dom-if' if='[[_attributes.length]]'>
              <h1>Valid Parameters</h1>
              <table class='attributes'>
                <tr>
                  <th>Parameter</th>
                  <th>Description</th>
                  <th>Example</th>
                </tr>
                <template is='dom-repeat' items='[[_attributes]]' as='attribute'>
                  <tr>
                    <td><pre>[[attribute.key]]</pre></td>
                    <td>[[attribute.description]]</td>
                    <td>[[attribute.example]]</td>
                  </tr>
                </template>
              </table>
            </template>
          </template>
        </template>
      </div>

    </app-header-layout>
  </template>
</dom-module>

<script>
Polymer({
  is: 'ha-panel-dev-service',

  properties: {
    hass: {
      type: Object,
    },

    narrow: {
      type: Boolean,
      value: false,
    },

    showMenu: {
      type: Boolean,
      value: false,
    },

    domain: {
      type: String,
      value: '',
      observer: 'domainChanged',
    },

    service: {
      type: String,
      value: '',
      observer: 'serviceChanged',
    },

    serviceData: {
      type: String,
      value: '',
    },

    _attributes: {
      type: Array,
      computed: 'computeAttributesArray(serviceDomains, domain, service)',
    },

    serviceDomains: {
      type: Object,
      computed: 'computeServiceDomains(hass)',
    },
  },

  computeServiceDomains: function (hass) {
    return hass.config.services;
  },

  computeAttributesArray: function (serviceDomains, domain, service) {
    if (!(domain in serviceDomains)) return [];
    if (!(service in serviceDomains[domain])) return [];

    var fields = serviceDomains[domain][service].fields;
    return Object.keys(fields).map(function (field) {
      return Object.assign({}, fields[field], { key: field });
    });
  },

  computeDomains: function (serviceDomains) {
    return Object.keys(serviceDomains).sort();
  },

  computeServices: function (serviceDomains, domain) {
    if (!(domain in serviceDomains)) return [];

    return Object.keys(serviceDomains[domain]).sort();
  },

  domainChanged: function () {
    this.service = '';
    this.serviceData = '';
  },

  serviceChanged: function () {
    this.serviceData = '';
  },

  callService: function () {
    var serviceData;
    try {
      serviceData = this.serviceData ? JSON.parse(this.serviceData) : {};
    } catch (err) {
      /* eslint-disable no-alert */
      alert('Error parsing JSON: ' + err);
      /* eslint-enable no-alert */
      return;
    }

    this.hass.callService(this.domain, this.service, serviceData);
  },
});
</script>