Add option to remove duplicates. Fix #26

README.md

@@ -33,6 +33,7 @@ filter:
     - <filter>
 
 show_empty: <show_empty>
+unique: <unique>
 sort: <sort_method>
 ```
 
@@ -44,6 +45,7 @@ sort: <sort_method>
   - `include:` **Required.** A list of filters specifying which entities to add to the card
   - `exclude:` A list of filters specifying which entities to remove from the card
 - `show_empty:` Whether to display the card if it has no entities. Default: `true`.
+- `unique:` Whether to remove duplicate values after filtering and sorting. Default: `false`.
 - `sort:` How to sort the entities of the card. Default: `none`.
 
 ### Filters

src/filter.js

@@ -1,5 +1,5 @@
 import { areaByName, areaDevices, deviceByName, deviceEntities } from "card-tools/src/devices";
- 
+
 function match(pattern, value) {
     if(typeof(value) === "string" && typeof(pattern) === "string") {
         if((pattern.startsWith('/') && pattern.endsWith('/')) || pattern.indexOf('*') !== -1) {
@@ -39,7 +39,7 @@ export function entity_filter(hass, filter) {
                 case "sort":
                     break;
 
-                case "domain": 
+                case "domain":
                     if(!match(value, entity.entity_id.split('.')[0]))
                         return false;
                     break;
@@ -85,12 +85,12 @@ export function entity_filter(hass, filter) {
                         continue;
                     }
                     break;
-                
+
                 case "not":
                     if(entity_filter(hass,value)(e))
                         return false;
                     break;
-                
+
                 case "device":
                     let _deviceMatch = false;
                     for(const d of window.cardToolsData.devices) {
@@ -101,7 +101,7 @@ export function entity_filter(hass, filter) {
                     }
                     if(!_deviceMatch) return false;
                     break;
-                
+
                 case "area":
                     let _areaMatch = false;
                     for (const a of window.cardToolsData.areas) {

src/main.js

@@ -17,7 +17,7 @@ class AutoEntities extends LitElement {
         if(!config || !config.card) {
             throw new Error("Invalid configuration");
         }
-        
+
         this._config = config;
         this.entities = [];
         this.cardConfig = {entities: this.entities, ...config.card};
@@ -76,6 +76,21 @@ class AutoEntities extends LitElement {
             entities = entities.sort(entity_sorter(this.hass, this._config.sort));
         }
 
+        if(this._config.unique) {
+            function compare(a,b) {
+                if(typeof(a) !== typeof(b)) return false;
+                if(typeof(a) !== "object") return a===b;
+                if(Object.keys(a).some((k) => !Object.keys(b).includes(k))) return false;
+
+                return Object.keys(a).every((k) => compare(a[k], b[k]));
+            }
+            let newEntities = [];
+            for(const e of entities) {
+                if(newEntities.some((i) => compare(i,e))) continue;
+                newEntities.push(e);
+            }
+            entities = newEntities;
+        }
         return entities;
     }
 
@@ -95,7 +110,7 @@ class AutoEntities extends LitElement {
             const newEntities = await this._getEntities();
             if(!compare(oldEntities, newEntities)) {
                 this.entities = newEntities;
-                this.cardConfig = { 
+                this.cardConfig = {
                     ...this.cardConfig,
                     entities: newEntities,
                 };