Use default home assistant state formatting

README.md

@@ -103,6 +103,7 @@ These options can be specified both per-entity and at the top level (affecting a
 | unit | string | `"%"` | v2.1.0 | Override for unit displayed next to the state/level value ([example](#other-use-cases))
 | value_override | [KString](#keyword-string-kstring) |  | v3.0.0 | Allows to override the battery level value. Note: when used the `multiplier`, `round`, `state_map` setting is ignored
 | non_battery_entity | boolean | `false` | v3.0.0 | Disables default battery state sources e.g. "battery_level" attribute
+| default_state_formatting | bollean | `true` | v3.1.0 | Can be used to disable default state formatting e.g. entity display precission setting
 
 ### Keyword string (KString)
 

src/battery-provider.ts

@@ -1,12 +1,13 @@
-import { getRegexFromString, log, safeGetConfigArrayOfObjects } from "./utils";
+import { log, safeGetConfigArrayOfObjects } from "./utils";
 import { HomeAssistant } from "custom-card-helpers";
 import { BatteryStateEntity } from "./custom-elements/battery-state-entity";
 import { Filter } from "./filter";
+import { HomeAssistantExt } from "./type-extensions";
 
 /**
  * Properties which should be copied over to individual entities from the card
  */
-const entititesGlobalProps: (keyof IBatteryEntityConfig)[] = [ "tap_action", "state_map", "charging_state", "secondary_info", "colors", "bulk_rename", "icon", "round", "unit", "value_override", "non_battery_entity" ];
+const entititesGlobalProps: (keyof IBatteryEntityConfig)[] = [ "tap_action", "state_map", "charging_state", "secondary_info", "colors", "bulk_rename", "icon", "round", "unit", "value_override", "non_battery_entity", "default_state_formatting" ];
 
 /**
  * Class responsible for intializing Battery view models based on given configuration.
@@ -23,6 +24,9 @@ export class BatteryProvider {
      */
     private exclude: Filter[] | undefined;
 
+    /**
+     * Collection of battery HTML elements.
+     */
     private batteries: IBatteryCollection = {};
 
     /**
@@ -51,7 +55,7 @@ export class BatteryProvider {
         this.processExplicitEntities();
     }
 
-    async update(hass: HomeAssistant): Promise<void> {
+    async update(hass: HomeAssistantExt): Promise<void> {
         if (!this.initialized) {
             // groups and includes should be processed just once
             this.initialized = true;
@@ -183,7 +187,7 @@ export class BatteryProvider {
                 if (this.batteries[entity_id]) {
                     return;
                 }
-                
+
                 this.batteries[entity_id] = this.createBattery({ entity: entity_id });
             });
 

src/custom-elements/battery-state-entity.ts

@@ -79,14 +79,14 @@ export class BatteryStateEntity extends LovelaceCard<IBatteryEntityConfig> {
         };
 
         this.name = getName(this.config, this.hass);
-        var { state, level} = getBatteryLevel(this.config, this.hass);
+        var { state, level, unit_override} = getBatteryLevel(this.config, this.hass);
         this.state = state;
 
-        if (level !== undefined && this.config.unit !== "" && this.config.unit !== null) {
+        if (unit_override === undefined && level !== undefined && this.config.unit !== "" && this.config.unit !== null) {
             this.unit = String.fromCharCode(160) + (this.config.unit || this.hass?.states[this.config.entity]?.attributes["unit_of_measurement"] || "%");
         }
         else {
-            this.unit = undefined;
+            this.unit = unit_override;
         }
 
         const isCharging = getChargingState(this.config, this.state, this.hass);

src/custom-elements/battery-state-entity.views.ts

@@ -24,6 +24,8 @@ const replaceTags = (text: string, hass?: HomeAssistant): TemplateResult[] => {
             result.push(html`${text.substring(currentPos, matchPos)}`);
         }
 
+        console.log(matches);
+
         result.push(html`<ha-relative-time .hass="${hass}" .datetime="${new Date(matches[1])}"></ha-relative-time>`);
 
         currentPos += matchPos + matches[0].length;

src/custom-elements/lovelace-card.ts

@@ -1,5 +1,5 @@
-import { HomeAssistant } from "custom-card-helpers";
 import { LitElement, TemplateResult } from "lit";
+import { HomeAssistantExt } from "../type-extensions";
 import { throttledCall } from "../utils";
 
 /**
@@ -10,7 +10,7 @@ export abstract class LovelaceCard<TConfig> extends LitElement {
     /**
      * HomeAssistant object
      */
-    private _hass: HomeAssistant | undefined;
+    private _hass: HomeAssistantExt | undefined;
 
     /**
      * Component/card config
@@ -34,9 +34,9 @@ export abstract class LovelaceCard<TConfig> extends LitElement {
 
     /**
      * Safe update triggering function
-     * 
-     * It happens quite often that setConfig or hassio setter are called few times 
-     * in the same execution path. We want to throttle such updates and handle just 
+     *
+     * It happens quite often that setConfig or hassio setter are called few times
+     * in the same execution path. We want to throttle such updates and handle just
      * the last one.
      */
     private triggerUpdate = throttledCall(async () => {
@@ -50,7 +50,7 @@ export abstract class LovelaceCard<TConfig> extends LitElement {
     /**
      * HomeAssistant object setter
      */
-    set hass(hass: HomeAssistant | undefined) {
+    set hass(hass: HomeAssistantExt | undefined) {
         this._hass = hass;
         this.hassUpdated = true;
         this.triggerUpdate();
@@ -59,7 +59,7 @@ export abstract class LovelaceCard<TConfig> extends LitElement {
     /**
      * HomeAssistant object getter
      */
-    get hass(): HomeAssistant | undefined {
+    get hass(): HomeAssistantExt | undefined {
         return this._hass;
     }
 

src/entity-fields/battery-level.ts

@@ -1,21 +1,22 @@
-import { HomeAssistant } from "custom-card-helpers/dist/types";
 import { RichStringProcessor } from "../rich-string-processor";
+import { HomeAssistantExt } from "../type-extensions";
 import { isNumber, log } from "../utils";
 
 /**
  * Some sensor may produce string value like "45%". This regex is meant to parse such values.
  */
- const stringValuePattern = /\b([0-9]{1,3})\s?%/;
+const stringValuePattern = /\b([0-9]{1,3})\s?%/;
 
 /**
  * Getts battery level/state
  * @param config Entity config
  * @param hass HomeAssistant state object
  * @returns Battery level
  */
- export const getBatteryLevel = (config: IBatteryEntityConfig, hass?: HomeAssistant): IBatteryState => {
+export const getBatteryLevel = (config: IBatteryEntityConfig, hass?: HomeAssistantExt): IBatteryState => {
     const UnknownLevel = hass?.localize("state.default.unknown") || "Unknown";
     let state: string;
+    let unit: string | undefined;
 
     const stringProcessor = new RichStringProcessor(hass, config.entity);
 
@@ -94,9 +95,19 @@ import { isNumber, log } from "../utils";
         state = state.charAt(0).toUpperCase() + state.slice(1);
     }
 
+    // check if HA should format the value
+    if (config.default_state_formatting !== false && !displayValue && state === entityData.state) {
+        const formattedState = hass.formatEntityState(entityData);
+
+        // assuming it is a number followed by unit
+        [displayValue, unit] = formattedState.split(" ", 2);
+        unit = String.fromCharCode(160) + unit;
+    }
+
     return {
         state: displayValue || state,
-        level: isNumber(state) ? Number(state) : undefined
+        level: isNumber(state) ? Number(state) : undefined,
+        unit_override: unit,
     };
 }
 
@@ -110,4 +121,9 @@ interface IBatteryState {
      * Battery state to display
      */
     state: string;
+
+    /**
+     * Unit override
+     */
+    unit_override?: string
 }

src/type-extensions.ts

@@ -0,0 +1,14 @@
+import { HomeAssistant } from "custom-card-helpers";
+
+/**
+ * https://github.com/home-assistant/frontend/blob/dev/src/types.ts
+ */
+export interface HomeAssistantExt extends HomeAssistant {
+  formatEntityState(stateObj: any, state?: string): string;
+  formatEntityAttributeValue(
+    stateObj: any,
+    attribute: string,
+    value?: any
+  ): string;
+  formatEntityAttributeName(stateObj: any, attribute: string): string;
+}

src/typings.d.ts

@@ -249,6 +249,11 @@ interface IBatteryEntityConfig {
      * Whether the entity is not a battery entity
      */
     non_battery_entity?: boolean;
+
+    /**
+     * Whether to allow HA to format the state value
+     */
+    default_state_formatting?: boolean;
 }
 
 interface IBatteryCardConfig {

test/helpers.ts

@@ -1,7 +1,7 @@
-import { HomeAssistant } from "custom-card-helpers";
 import { BatteryStateCard } from "../src/custom-elements/battery-state-card";
 import { BatteryStateEntity } from "../src/custom-elements/battery-state-entity";
 import { LovelaceCard } from "../src/custom-elements/lovelace-card";
+import { HomeAssistantExt } from "../src/type-extensions";
 import { throttledCall } from "../src/utils";
 
 /**
@@ -70,9 +70,10 @@ export class HomeAssistantMock<T extends LovelaceCard<any>> {
 
     private cards: LovelaceCard<any>[] = [];
 
-    public hass: HomeAssistant = <any>{
+    public hass: HomeAssistantExt = <any>{
         states: {},
-        localize: jest.fn((key: string) => `[${key}]`)
+        localize: jest.fn((key: string) => `[${key}]`),
+        formatEntityState: jest.fn((entityData: any) => `${entityData.state} %`),
     };
 
     private throttledUpdate = throttledCall(() => {
@@ -85,6 +86,10 @@ export class HomeAssistantMock<T extends LovelaceCard<any>> {
         }
     }
 
+    mockFunc(funcName: keyof HomeAssistantExt, mockedFunc: Function) {
+        (<any>this.hass)[funcName] = jest.fn(<any>mockedFunc)
+    }
+
     addCard<K extends LovelaceCard<T>>(type: string, config: extractGeneric<T>): T {
         const elementName = type.replace("custom:", "");
 

test/other/entity-fields/battery-level.test.ts

@@ -181,4 +181,24 @@ describe("Battery level", () => {
         expect(level).toBe(expectedLevel);
         expect(state).toBe(expectedState);
     });
+
+    test.each([
+        [undefined, "45", "dbm", { state: "[45]", level: 45, unit_override: String.fromCharCode(160) + "[dbm]" }], // test default when the setting is not set in the config
+        [true, "45", "dbm", { state: "[45]", level: 45, unit_override: String.fromCharCode(160) + "[dbm]" }], // test when the setting is explicitly true
+        [false, "45", "dbm", { state: "45", level: 45, unit_override: undefined }], // test when the setting is turned off
+        [true, "45", "dbm", { state: "56", level: 56, unit_override: undefined }, [ { from: "45", to: "56" } ]], // test when the state was changed by state_map
+        [true, "45", "dbm", { state: "33", level: 45, unit_override: undefined }, [ { from: "45", to: "45", display: "33" } ]], // test when the display value was changed by state_map
+    ])
+    ("default HA formatting ", (defaultStateFormatting: boolean | undefined, entityState: string, unitOfMeasurement: string, expected: { state: string, level: number, unit_override?: string }, stateMap: IConvert[] | undefined = undefined) => {
+
+        const hassMock = new HomeAssistantMock(true);
+        hassMock.addEntity("Mocked entity", entityState);
+        hassMock.mockFunc("formatEntityState", (entityData: any) => `[${entityData.state}] [${unitOfMeasurement}]`);
+
+        const { state, level, unit_override } = getBatteryLevel({ entity: "mocked_entity", default_state_formatting: defaultStateFormatting, state_map: stateMap }, hassMock.hass);
+
+        expect(level).toBe(expected.level);
+        expect(state).toBe(expected.state);
+        expect(unit_override).toBe(expected.unit_override);
+    });
 });

test/other/entity-fields/charging-state.test.ts

@@ -8,6 +8,15 @@ describe("Charging state", () => {
         const hassMock = new HomeAssistantMock(true);
         const isCharging = getChargingState({ entity: "any" }, "90", hassMock.hass); 
 
+        expect(isCharging).toBe(false);
+    })    
+
+    test("is false when there is no hass", () => {
+        const isCharging = getChargingState(
+            { entity: "sensor.my_entity", charging_state: { attribute: [ { name: "is_charging", value: "true" } ] } }, 
+            "45", 
+            undefined); 
+
         expect(isCharging).toBe(false);
     })
 
@@ -44,15 +53,47 @@ describe("Charging state", () => {
         expect(isCharging).toBe(true);
     })
 
-    test("is true when charging state is in the external entity state", () => {
+    test("is false when charging state is in attribute (and attribute is missing)", () => {
         const hassMock = new HomeAssistantMock(true);
-        const entity = hassMock.addEntity("Sensor", "80", { is_charging: "true" })
+        const entity = hassMock.addEntity("Sensor", "80")
         const isCharging = getChargingState(
             { entity: entity.entity_id, charging_state: { attribute: [ { name: "status", value: "charging" }, { name: "is_charging", value: "true" } ] } }, 
             entity.state, 
             hassMock.hass); 
 
-        expect(isCharging).toBe(true);
+        expect(isCharging).toBe(false);
+    })
+
+    test.each([
+        ["charging", true],
+        ["charging", false, "MissingEntity"],
+        ["discharging", false]
+    ])("charging state is in the external entity state", (chargingEntityState: string, expected: boolean, missingEntitySuffix = "") => {
+        const hassMock = new HomeAssistantMock(true);
+        const entity = hassMock.addEntity("Sensor", "80")
+        const entityChargingState = hassMock.addEntity("Charging sensor", chargingEntityState)
+        const isCharging = getChargingState(
+            { entity: entity.entity_id, charging_state: { entity_id: entityChargingState.entity_id + missingEntitySuffix, state: "charging" } }, 
+            entity.state, 
+            hassMock.hass); 
+
+        expect(isCharging).toBe(expected);
+    })
+
+    test.each([
+        ["charging", true],
+        ["full", true],
+        ["full", false, " missing"],
+    ])("default charging state", (chargingEntityState: string, expected: boolean, missingEntitySuffix = "") => {
+        const hassMock = new HomeAssistantMock(true);
+        const entity = hassMock.addEntity("Sensor battery level", "80", { is_charging: "true" })
+        const entityChargingState = hassMock.addEntity("Sensor battery state" + missingEntitySuffix, chargingEntityState)
+        const isCharging = getChargingState(
+            { entity: entity.entity_id }, 
+            entity.state, 
+            hassMock.hass); 
+
+        expect(isCharging).toBe(expected);
     })
 
 });