From 2e7f8fb46f9f94afcbff3aa5010e73bfb0cbe807 Mon Sep 17 00:00:00 2001
From: Zack Barett <zackbarett@hey.com>
Date: Thu, 17 Mar 2022 17:01:08 -0500
Subject: [PATCH] Add Date Time Selector (#12070)

---
 gallery/src/pages/components/ha-selector.ts   |  1 +
 .../ha-selector/ha-selector-datetime.ts       | 73 +++++++++++++++++++
 src/components/ha-selector/ha-selector.ts     |  1 +
 src/data/selector.ts                          |  6 ++
 4 files changed, 81 insertions(+)
 create mode 100644 src/components/ha-selector/ha-selector-datetime.ts

diff --git a/gallery/src/pages/components/ha-selector.ts b/gallery/src/pages/components/ha-selector.ts
index f38a494cb9..053c95d7da 100644
--- a/gallery/src/pages/components/ha-selector.ts
+++ b/gallery/src/pages/components/ha-selector.ts
@@ -147,6 +147,7 @@ const SCHEMAS: {
       boolean: { name: "Boolean", selector: { boolean: {} } },
       time: { name: "Time", selector: { time: {} } },
       date: { name: "Date", selector: { date: {} } },
+      datetime: { name: "Date Time", selector: { datetime: {} } },
       action: { name: "Action", selector: { action: {} } },
       text: {
         name: "Text",
diff --git a/src/components/ha-selector/ha-selector-datetime.ts b/src/components/ha-selector/ha-selector-datetime.ts
new file mode 100644
index 0000000000..80add84bd4
--- /dev/null
+++ b/src/components/ha-selector/ha-selector-datetime.ts
@@ -0,0 +1,73 @@
+import { css, html, LitElement } from "lit";
+import { customElement, property, query } from "lit/decorators";
+import type { HomeAssistant } from "../../types";
+import type { DateTimeSelector } from "../../data/selector";
+import type { HaDateInput } from "../ha-date-input";
+import type { HaTimeInput } from "../ha-time-input";
+import { fireEvent } from "../../common/dom/fire_event";
+import "../ha-date-input";
+import "../ha-time-input";
+
+@customElement("ha-selector-datetime")
+export class HaDateTimeSelector extends LitElement {
+  @property() public hass!: HomeAssistant;
+
+  @property() public selector!: DateTimeSelector;
+
+  @property() public value?: string;
+
+  @property() public label?: string;
+
+  @property({ type: Boolean, reflect: true }) public disabled = false;
+
+  @query("ha-date-input") private _dateInput!: HaDateInput;
+
+  @query("ha-time-input") private _timeInput!: HaTimeInput;
+
+  protected render() {
+    const values = this.value?.split(" ");
+    return html`
+      <ha-date-input
+        .label=${this.label}
+        .locale=${this.hass.locale}
+        .disabled=${this.disabled}
+        .value=${values?.[0]}
+        @value-changed=${this._valueChanged}
+      >
+      </ha-date-input>
+      <ha-time-input
+        enable-second
+        .value=${values?.[1] || "00:00:00"}
+        .locale=${this.hass.locale}
+        .disabled=${this.disabled}
+        @value-changed=${this._valueChanged}
+      ></ha-time-input>
+    `;
+  }
+
+  private _valueChanged(ev: CustomEvent): void {
+    ev.stopPropagation();
+    fireEvent(this, "value-changed", {
+      value: `${this._dateInput.value} ${this._timeInput.value}`,
+    });
+  }
+
+  static styles = css`
+    :host {
+      display: flex;
+      align-items: center;
+      flex-direction: row;
+    }
+
+    ha-date-input {
+      min-width: 150px;
+      margin-right: 4px;
+    }
+  `;
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-selector-datetime": HaDateTimeSelector;
+  }
+}
diff --git a/src/components/ha-selector/ha-selector.ts b/src/components/ha-selector/ha-selector.ts
index 365d22f6bf..09a234e55c 100644
--- a/src/components/ha-selector/ha-selector.ts
+++ b/src/components/ha-selector/ha-selector.ts
@@ -10,6 +10,7 @@ import "./ha-selector-attribute";
 import "./ha-selector-boolean";
 import "./ha-selector-color-rgb";
 import "./ha-selector-date";
+import "./ha-selector-datetime";
 import "./ha-selector-device";
 import "./ha-selector-duration";
 import "./ha-selector-entity";
diff --git a/src/data/selector.ts b/src/data/selector.ts
index 1ecc64b2cf..b48c11b179 100644
--- a/src/data/selector.ts
+++ b/src/data/selector.ts
@@ -3,6 +3,7 @@ export type Selector =
   | AttributeSelector
   | EntitySelector
   | DateSelector
+  | DateTimeSelector
   | DeviceSelector
   | DurationSelector
   | AreaSelector
@@ -46,6 +47,11 @@ export interface DateSelector {
   date: {};
 }
 
+export interface DateTimeSelector {
+  // eslint-disable-next-line @typescript-eslint/ban-types
+  datetime: {};
+}
+
 export interface DeviceSelector {
   device: {
     integration?: string;