Various fixes

* Code formatting
* Both "type" and "name" are used to refer to the validation type. Changed all to "type".
* Added proper abstraction of realtime validation classes on server
* UI improvements in admin and wizard

assets/javascripts/discourse/components/wizard-custom-field.js.es6

@@ -30,6 +30,7 @@ export default Component.extend(UndoChanges, {
   @discourseComputed('field.type')
   validations(type) {
     const applicableToField = [];
+    
     for(let validation in wizardSchema.field.validations) {
       if ((wizardSchema.field.validations[validation]["types"]).includes(type)) {
         applicableToField.push(validation)

assets/javascripts/discourse/components/wizard-realtime-validations.js.es6

@@ -12,6 +12,7 @@ export default Component.extend({
 
     if (!this.field.validations) {
       const validations = {};
+      
       this.validations.forEach((validation) => {
         validations[validation] = {};
       });
@@ -32,10 +33,10 @@ export default Component.extend({
   },
 
   actions: {
-    updateValidationCategories(name, validation, categories) {
-      this.set(`validationBuffer.${name}.categories`, categories);
+    updateValidationCategories(type, validation, categories) {
+      this.set(`validationBuffer.${type}.categories`, categories);
       this.set(
-        `field.validations.${name}.categories`,
+        `field.validations.${type}.categories`,
         categories.map((category) => category.id)
       );
     },

assets/javascripts/discourse/templates/components/wizard-realtime-validations.hbs

@@ -1,10 +1,10 @@
 <h3>{{i18n 'admin.wizard.field.validations.header'}}</h3>
 
 <ul>
-  {{#each-in field.validations as |name props|}}
+  {{#each-in field.validations as |type props|}}
     <li>
       <span class="setting-title">
-        <h4>{{i18n (concat 'admin.wizard.field.validations.' name)}}</h4>
+        <h4>{{i18n (concat 'admin.wizard.field.validations.' type)}}</h4>
         {{input type="checkbox" checked=props.status}}
         {{i18n 'admin.wizard.field.validations.enabled'}}
       </span>
@@ -15,8 +15,8 @@
           </div>
           <div class="setting-value">
             {{category-selector
-                categories=(get this (concat 'validationBuffer.' name '.categories'))
-                onChange=(action 'updateValidationCategories' name props)
+                categories=(get this (concat 'validationBuffer.' type '.categories'))
+                onChange=(action 'updateValidationCategories' type props)
                 class="wizard"}}
           </div>
         </div>
@@ -36,9 +36,9 @@
             <label>{{i18n 'admin.wizard.field.validations.position'}}</label>
           </div>
           <div class="setting-value">
-            {{radio-button name=(concat name field.id) value="above" selection=props.position}}
+            {{radio-button name=(concat type field.id) value="above" selection=props.position}}
             {{i18n 'admin.wizard.field.validations.above'}}
-            {{radio-button name=(concat name field.id) value="below" selection=props.position}}
+            {{radio-button name=(concat type field.id) value="below" selection=props.position}}
             {{i18n 'admin.wizard.field.validations.below'}}
           </div>
         </div>

assets/javascripts/wizard/components/similar-topics-validator.js.es6

@@ -3,15 +3,34 @@ import { deepMerge } from "discourse-common/lib/object";
 import { observes } from "discourse-common/utils/decorators";
 import { cancel, later } from "@ember/runloop";
 import { A } from "@ember/array";
-import EmberObject from "@ember/object";
+import EmberObject, { computed } from "@ember/object";
+import { notEmpty, and, equal, empty } from "@ember/object/computed";
 
 export default WizardFieldValidator.extend({
-  similarTopics: [],
+  classNames: ['similar-topics-validator'],
+  similarTopics: null,
+  hasInput: notEmpty('field.value'),
+  hasSimilarTopics: notEmpty('similarTopics'),
+  hasNotSearched: equal('similarTopics', null),
+  noSimilarTopics: computed('similarTopics', function() {
+    return this.similarTopics !== null && this.similarTopics.length == 0;
+  }),
+  showDefault: and('hasNotSearched', 'hasInput'),
 
   validate() {},
 
   @observes("field.value")
   customValidate() {
+    const field = this.field;
+    
+    if (!field.value) return;
+    const value = field.value;
+    
+    if (value && value.length < 5) {
+      this.set('similarTopics', null);
+      return;
+    }
+    
     const lastKeyUp = new Date();
     this._lastKeyUp = lastKeyUp;
 
@@ -28,6 +47,8 @@ export default WizardFieldValidator.extend({
   },
 
   updateSimilarTopics() {
+    this.set('updating', true);
+    
     this.backendValidate({
       title: this.get("field.value"),
       categories: this.get("validation.categories"),
@@ -41,7 +62,7 @@ export default WizardFieldValidator.extend({
       });
 
       this.set("similarTopics", similarTopics);
-    });
+    }).finally(() => this.set('updating', false));
   },
 
   actions: {

assets/javascripts/wizard/components/validator.js.es6

@@ -1,15 +1,17 @@
 import Component from "@ember/component";
-import { not } from "@ember/object/computed";
+import { equal } from "@ember/object/computed";
 import { ajax } from "discourse/lib/ajax";
 import { getToken } from "wizard/lib/ajax";
 
 export default Component.extend({
+  classNames: ['validator'],
   classNameBindings: ["isValid", "isInvalid"],
   validMessageKey: null,
   invalidMessageKey: null,
   isValid: null,
-  isInvalid: not("isValid"),
+  isInvalid: equal("isValid", false),
   layoutName: "components/validator", // useful for sharing the template with extending components
+  
   init() {
     this._super(...arguments);
 
@@ -19,7 +21,7 @@ export default Component.extend({
       this.backendValidate = (params) => {
         return ajax("/realtime-validations", {
           data: {
-            validation: this.get("name"),
+            type: this.get("type"),
             authenticity_token: getToken(),
             ...params,
           },

assets/javascripts/wizard/templates/components/field-validators.hbs

@@ -1,12 +1,12 @@
 {{#if field.validations}}
-  {{#each-in field.validations.above as |name validation|}}
-    {{component validation.component field=field name=name validation=validation}}
+  {{#each-in field.validations.above as |type validation|}}
+    {{component validation.component field=field type=type validation=validation}}
   {{/each-in}}
 
   {{yield (hash perform=(action 'perform'))}}
 
-  {{#each-in field.validations.below as |name validation|}}
-    {{component validation.component field=field name=name validation=validation}}
+  {{#each-in field.validations.below as |type validation|}}
+    {{component validation.component field=field type=type validation=validation}}
   {{/each-in}}
 {{else}}
   {{yield}}

assets/javascripts/wizard/templates/components/similar-topics-validator.hbs

@@ -1,8 +1,16 @@
-{{#if similarTopics}}
-  <h3>{{i18n 'realtime_validations.similar_topics_heading'}}</h3>
-  <div class="wizard-similar-topics">
-  {{#each similarTopics as |similarTopic|}}
-    {{wizard-similar-topic topic=similarTopic}}
-  {{/each}}
-  </div>
+{{#if loading}}
+  <label>{{i18n 'realtime_validations.similar_topics.loading'}}</label>
+{{else if hasSimilarTopics}}
+  <label>{{i18n 'realtime_validations.similar_topics.results'}}</label>
+  <ul class="wizard-similar-topics">
+    {{#each similarTopics as |similarTopic|}}
+      <li>{{wizard-similar-topic topic=similarTopic}}</li>
+    {{/each}}
+  </ul>
+{{else if noSimilarTopics}}
+  <label>{{i18n 'realtime_validations.similar_topics.no_results'}}</label>
+{{else if showDefault}}
+  <label>{{i18n 'realtime_validations.similar_topics.default'}}</label>
+{{else}}
+  <label></label>
 {{/if}}

assets/stylesheets/common/wizard-admin.scss

@@ -644,14 +644,18 @@
   }
 }
 
-.realtime-validations ul {
+.realtime-validations > ul {
   list-style: none;
   margin: 0;
 
-  li {
-    background-color: var(--tertiary-low);
-    padding: 0 1em;
+  > li {
+    background-color: var(--primary-low);
+    padding: 1em;
     margin: 0 0 1em 0;
+    
+    input {
+      margin-bottom: 0;
+    }
   }
 }
 

assets/stylesheets/wizard/custom/field.scss

@@ -155,18 +155,8 @@
   .select-kit.combo-box.group-dropdown {
     min-width: 220px;
   }
-}
   
-.wizard-similar-topics {
-  background-color: var(--tertiary-low);
-  padding: 5px;
-  .title {
-    color: var(--primary);
-  }
-  
-  .blurb {
-    margin-left: 0.5em;
-    color: var(--primary-high);
-    font-size: $font-down-1;
+  .text-field input {
+    margin-bottom: 0;
   }
 }

assets/stylesheets/wizard/custom/validators.scss

@@ -0,0 +1,30 @@
+.similar-topics-validator {
+  position: relative;
+  
+  label {
+    min-height: 20px;
+    display: inline-block;
+  }
+}
+
+.wizard-similar-topics {
+  background-color: var(--tertiary-low);
+  padding: 5px;
+  margin: 0;
+  list-style: none;
+  position: absolute;
+  top: 25px;
+  box-shadow: shadow("dropdown");
+  width: 100%;
+  box-sizing: border-box;
+  
+  .title {
+    color: var(--primary);
+  }
+  
+  .blurb {
+    margin-left: 0.5em;
+    color: var(--primary-high);
+    font-size: $font-down-1;
+  }
+}

assets/stylesheets/wizard/wizard_custom.scss

@@ -10,6 +10,7 @@
 @import "custom/wizard";
 @import "custom/step";
 @import "custom/field";
+@import "custom/validators";
 @import "custom/mobile";
 @import "custom/autocomplete";
 @import "custom/composer";

config/locales/client.en.yml

@@ -178,7 +178,7 @@ en:
             instructions: "<a href='https://momentjs.com/docs/#/displaying/format/' target='_blank'>Moment.js format</a>"
           validations:
             header: "Realtime Validations"
-            enabled: "Enable this validation"
+            enabled: "Enabled"
             similar_topics: "Similar Topics"
             position: "Position"
             above: "Above"
@@ -521,4 +521,8 @@ en:
         title: "Did you forget to add recipients?"
         body: "Right now this message is only being sent to yourself!"
     realtime_validations:
-      similar_topics_heading: "Your topic is similar to..."
+      similar_topics:
+        default: "When you stop typing we'll look for similar topics."
+        results: "Your topic is similar to..."
+        no_results: "No similar topics."
+        loading: "Looking for similar topics..."

controllers/custom_wizard/realtime_validations.rb

@@ -2,10 +2,17 @@
 
 class CustomWizard::RealtimeValidationsController < ::ApplicationController
   def validate
-    params.require(:validation)
-    params.require(::CustomWizard::RealtimeValidation.types[params[:validation].to_sym][:required_params])
+    klass_str = "CustomWizard::RealtimeValidation::#{validation_params[:type].camelize}"
+    result = klass_str.constantize.new(current_user).perform(validation_params)
+    render_serialized(result.items, "#{klass_str}Serializer".constantize, result.serializer_opts)
+  end
   
-    result = ::CustomWizard::RealtimeValidation.send(params[:validation], params, current_user)
-    render_serialized(result[:items], result[:serializer], result[:opts])
+  private
+  
+  def validation_params
+    params.require(:type)
+    settings = ::CustomWizard::RealtimeValidation.types[params[:type].to_sym]
+    params.require(settings[:required_params]) if settings[:required_params].present?
+    params
   end
 end

lib/custom_wizard/realtime_validation.rb

@@ -2,36 +2,13 @@
 
 class CustomWizard::RealtimeValidation
   cattr_accessor :types
+  
   @@types ||= {
-    similar_topics: { types: [:text], component: "similar-topics-validator", backend: true, required_params: [] }
+    similar_topics: {
+      types: [:text],
+      component: "similar-topics-validator",
+      backend: true,
+      required_params: []
+    }
   }
-
-  class SimilarTopic
-    def initialize(topic)
-      @topic = topic
-    end
-
-    attr_reader :topic
-
-    def blurb
-      Search::GroupedSearchResults.blurb_for(cooked: @topic.try(:blurb))
-    end
-  end
-
-  def self.similar_topics(params, current_user)
-    title = params[:title]
-    raw = params[:raw]
-    categories = params[:categories]
-    date_after = params[:date_after]
-
-    if title.length < SiteSetting.min_title_similar_length || !Topic.count_exceeds_minimum?
-      return []
-    end
-
-    topics = Topic.similar_to(title, raw, current_user).to_a
-    topics.select! { |t| categories.include?(t.category.id.to_s) } if categories.present?
-    topics.select! { |t| t.created_at > DateTime.parse(date_after) } if date_after.present?
-    topics.map! { |t| SimilarTopic.new(t) }
-    { items: topics, serializer: SimilarTopicSerializer, opts: { root: :similar_topics } }
-  end
 end

lib/custom_wizard/realtime_validations/result.rb

@@ -0,0 +1,11 @@
+class CustomWizard::RealtimeValidation::Result
+  attr_accessor :type,
+                :items,
+                :serializer_opts
+
+  def initialize(type)
+    @type = type
+    @items = []
+    @serializer_opts = {}
+  end
+end

lib/custom_wizard/realtime_validations/similar_topics.rb

@@ -0,0 +1,42 @@
+class CustomWizard::RealtimeValidation::SimilarTopics
+  attr_accessor :user
+  
+  def initialize(user)
+    @user = user
+  end
+  
+  class SimilarTopic
+    def initialize(topic)
+      @topic = topic
+    end
+
+    attr_reader :topic
+
+    def blurb
+      Search::GroupedSearchResults.blurb_for(cooked: @topic.try(:blurb))
+    end
+  end
+  
+  def perform(params)
+    title = params[:title]
+    raw = params[:raw]
+    categories = params[:categories]
+    date_after = params[:date_after]
+        
+    result = CustomWizard::RealtimeValidation::Result.new(:similar_topic)
+    
+    if title.length < SiteSetting.min_title_similar_length || !Topic.count_exceeds_minimum?
+      return result
+    end
+
+    topics = Topic.similar_to(title, raw, user).to_a
+    topics.select! { |t| categories.include?(t.category.id.to_s) } if categories.present?
+    topics.select! { |t| t.created_at > DateTime.parse(date_after) } if date_after.present?
+    topics.map! { |t| SimilarTopic.new(t) }
+    
+    result.items = topics
+    result.serializer_opts = { root: :similar_topics }
+    
+    result
+  end
+end

plugin.rb

@@ -60,6 +60,8 @@ after_initialize do
     ../lib/custom_wizard/custom_field.rb
     ../lib/custom_wizard/field.rb
     ../lib/custom_wizard/realtime_validation.rb
+    ../lib/custom_wizard/realtime_validations/result.rb
+    ../lib/custom_wizard/realtime_validations/similar_topics.rb
     ../lib/custom_wizard/mapper.rb
     ../lib/custom_wizard/log.rb
     ../lib/custom_wizard/step_updater.rb
@@ -81,6 +83,7 @@ after_initialize do
     ../serializers/custom_wizard/wizard_step_serializer.rb
     ../serializers/custom_wizard/wizard_serializer.rb
     ../serializers/custom_wizard/log_serializer.rb
+    ../serializers/custom_wizard/realtime_validation/similar_topics_serializer.rb
     ../extensions/extra_locales_controller.rb
     ../extensions/invites_controller.rb
     ../extensions/users_controller.rb

serializers/custom_wizard/realtime_validation/similar_topics_serializer.rb

@@ -0,0 +1,2 @@
+class ::CustomWizard::RealtimeValidation::SimilarTopicsSerializer < ::SimilarTopicSerializer
+end

serializers/custom_wizard/wizard_field_serializer.rb

@@ -61,10 +61,10 @@ class CustomWizard::FieldSerializer < ::WizardFieldSerializer
 
   def validations
     validations = {}
-    object.validations&.each do |name, props|
+    object.validations&.each do |type, props|
       next unless props["status"]
       validations[props["position"]] ||= {}
-      validations[props["position"]][name] = props.merge CustomWizard::RealtimeValidation.types[name.to_sym]
+      validations[props["position"]][type] = props.merge CustomWizard::RealtimeValidation.types[type.to_sym]
     end
 
     validations